INFO   | jvm 1    | 2022/12/08 15:00:54 | E [d.S.BasicRequestCycle         ] [14:00:54]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:54 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:54 | E [d.S.BasicRequestCycle         ] [14:00:54]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:54 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:54 | E [d.S.BasicRequestCycle         ] [14:00:54]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:54 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:54 | E [d.S.BasicRequestCycle         ] [14:00:54]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:54 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:54 | E [d.S.BasicRequestCycle         ] [14:00:54]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:54 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:54 | E [d.S.BasicRequestCycle         ] [14:00:54]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:54 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:54 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:55 | E [d.S.BasicRequestCycle         ] [14:00:55]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:55 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:55 | E [d.S.BasicRequestCycle         ] [14:00:55]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:55 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:55 | E [d.S.BasicRequestCycle         ] [14:00:55]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:55 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:55 | E [d.S.BasicRequestCycle         ] [14:00:55]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:55 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:55 | E [d.S.BasicRequestCycle         ] [14:00:55]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:55 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:55 | E [d.S.BasicRequestCycle         ] [14:00:55]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:55 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:55 | E [d.S.BasicRequestCycle         ] [14:00:55]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:55 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:55 | E [d.S.BasicRequestCycle         ] [14:00:55]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:55 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:55 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:56 | E [d.S.BasicRequestCycle         ] [14:00:55]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:56 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:56 | E [d.S.BasicRequestCycle         ] [14:00:56]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:56 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:56 | E [d.S.BasicRequestCycle         ] [14:00:56]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:56 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:56 | E [d.S.BasicRequestCycle         ] [14:00:56]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:56 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:56 | E [d.S.BasicRequestCycle         ] [14:00:56]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:56 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:56 | E [d.S.BasicRequestCycle         ] [14:00:56]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:56 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:56 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:57 | E [d.S.BasicRequestCycle         ] [14:00:57]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:57 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:57 | E [d.S.BasicRequestCycle         ] [14:00:57]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:57 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:57 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:59 | E [d.S.BasicRequestCycle         ] [14:00:59]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:59 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:59 | E [d.S.BasicRequestCycle         ] [14:00:59]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:59 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:59 | E [d.S.BasicRequestCycle         ] [14:00:59]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:59 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:59 | E [d.S.BasicRequestCycle         ] [14:00:59]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:59 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:00:59 | E [d.S.BasicRequestCycle         ] [14:00:59]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:00:59 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:00:59 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:00 | E [d.S.BasicRequestCycle         ] [14:01:00]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:00 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:00 | E [d.S.BasicRequestCycle         ] [14:01:00]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:00 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:00 | E [d.S.BasicRequestCycle         ] [14:01:00]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:00 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:00 | E [d.S.BasicRequestCycle         ] [14:01:00]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:00 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:00 | E [d.S.BasicRequestCycle         ] [14:01:00]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:00 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:00 | E [d.S.BasicRequestCycle         ] [14:01:00]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:00 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:00 | E [d.S.BasicRequestCycle         ] [14:01:00]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:00 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:00 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | E [d.S.BasicRequestCycle         ] [14:01:01]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:01 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | E [a.J.DatabaseJournal           ] [14:01:01]: Alarm journal initialization failed. Will try again in 60 seconds. journal=Journal_manutenzioni
INFO   | jvm 1    | 2022/12/08 15:01:01 | java.lang.Exception: Error running query: ALTER TABLE alarm_event__manutenzioni ADD "intvalue" bigint, "dtype" int, "floatvalue" double precision, "propname" varchar(255), "strvalue" nvarchar(max)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.gateway.db.schema.DBTableSchema.executeCommandSet(DBTableSchema.java:140)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.gateway.db.schema.DBTableSchema.addColumnsToTable(DBTableSchema.java:114)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.gateway.db.schema.DBTableSchema.verifyAndUpdate(DBTableSchema.java:99)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.gateway.alarming.journal.JournalTables$EventDataTable.verifyTable(JournalTables.java:104)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.gateway.alarming.journal.DatabaseAlarmJournal.verifyTables(DatabaseAlarmJournal.java:172)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.gateway.alarming.journal.DatabaseAlarmJournal.tryInit(DatabaseAlarmJournal.java:151)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.common.execution.impl.BasicExecutionEngine$ThrowableCatchingRunnable.run(BasicExecutionEngine.java:539)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: Impossibile trovare l'oggetto "alarm_event__manutenzioni" perché non esiste oppure l'utente non dispone delle autorizzazioni necessarie.
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:196)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(SQLServerStatement.java:1454)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.microsoft.sqlserver.jdbc.SQLServerStatement.doExecuteStatement(SQLServerStatement.java:786)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.microsoft.sqlserver.jdbc.SQLServerStatement$StmtExecCmd.doExecute(SQLServerStatement.java:685)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:4026)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1416)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServerStatement.java:185)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(SQLServerStatement.java:160)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeUpdate(SQLServerStatement.java:642)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at org.apache.commons.dbcp2.DelegatingStatement.executeUpdate(DelegatingStatement.java:341)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at org.apache.commons.dbcp2.DelegatingStatement.executeUpdate(DelegatingStatement.java:341)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.gateway.datasource.DelegatingStatement.executeUpdate(DelegatingStatement.java:80)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.gateway.datasource.SRConnectionWrapper$SRStatement.executeUpdate(SRConnectionWrapper.java:867)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.ignition.gateway.db.schema.DBTableSchema.executeCommandSet(DBTableSchema.java:138)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	... 12 common frames omitted
INFO   | jvm 1    | 2022/12/08 15:01:01 | E [d.S.BasicRequestCycle         ] [14:01:01]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:01 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | E [d.S.BasicRequestCycle         ] [14:01:01]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:01 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | E [d.S.BasicRequestCycle         ] [14:01:01]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:01 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | E [d.S.BasicRequestCycle         ] [14:01:01]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:01 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | E [d.S.BasicRequestCycle         ] [14:01:01]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:01 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:01 | E [d.S.BasicRequestCycle         ] [14:01:01]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:01 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:01 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:02 | E [d.S.BasicRequestCycle         ] [14:01:02]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:02 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:02 | E [d.S.BasicRequestCycle         ] [14:01:02]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:02 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:02 | E [d.S.BasicRequestCycle         ] [14:01:02]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:02 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:02 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:04 | E [d.S.BasicRequestCycle         ] [14:01:04]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:04 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:04 | E [d.S.BasicRequestCycle         ] [14:01:04]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:04 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:04 | E [d.S.BasicRequestCycle         ] [14:01:04]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:04 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:04 | E [d.S.BasicRequestCycle         ] [14:01:04]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:04 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:04 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:05 | E [d.S.BasicRequestCycle         ] [14:01:05]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:05 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:05 | E [d.S.BasicRequestCycle         ] [14:01:05]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:05 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:05 | E [d.S.BasicRequestCycle         ] [14:01:05]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:05 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:05 | E [d.S.BasicRequestCycle         ] [14:01:05]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:05 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:05 | E [d.S.BasicRequestCycle         ] [14:01:05]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:05 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:05 | E [d.S.BasicRequestCycle         ] [14:01:05]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:05 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:05 | E [d.S.BasicRequestCycle         ] [14:01:05]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:05 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:05 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:06 | E [d.S.BasicRequestCycle         ] [14:01:06]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:06 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:06 | E [d.S.BasicRequestCycle         ] [14:01:06]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:06 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:06 | E [d.S.BasicRequestCycle         ] [14:01:06]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:06 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:06 | E [d.S.BasicRequestCycle         ] [14:01:06]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:06 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:06 | E [d.S.BasicRequestCycle         ] [14:01:06]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:06 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:06 | E [d.S.BasicRequestCycle         ] [14:01:06]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:06 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:06 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:07 | E [d.S.BasicRequestCycle         ] [14:01:06]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:07 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:07 | E [d.S.BasicRequestCycle         ] [14:01:07]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:07 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:07 | E [d.S.BasicRequestCycle         ] [14:01:07]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:07 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:07 | E [d.S.BasicRequestCycle         ] [14:01:07]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:07 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:07 | E [d.S.BasicRequestCycle         ] [14:01:07]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:07 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:07 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:09 | E [d.S.BasicRequestCycle         ] [14:01:09]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:09 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:09 | E [d.S.BasicRequestCycle         ] [14:01:09]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:09 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:09 | E [d.S.BasicRequestCycle         ] [14:01:09]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:09 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:09 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:10 | E [d.S.BasicRequestCycle         ] [14:01:09]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:10 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:10 | E [d.S.BasicRequestCycle         ] [14:01:10]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:10 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:10 | E [d.S.BasicRequestCycle         ] [14:01:10]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:10 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:10 | E [d.S.BasicRequestCycle         ] [14:01:10]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:10 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:10 | E [d.S.BasicRequestCycle         ] [14:01:10]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:10 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:10 | E [d.S.BasicRequestCycle         ] [14:01:10]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:10 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:10 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:11 | E [d.S.BasicRequestCycle         ] [14:01:10]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:11 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:11 | E [d.S.BasicRequestCycle         ] [14:01:11]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:11 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:11 | E [d.S.BasicRequestCycle         ] [14:01:11]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:11 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:11 | E [d.S.BasicRequestCycle         ] [14:01:11]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:11 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:11 | E [d.S.BasicRequestCycle         ] [14:01:11]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:11 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:11 | E [d.S.BasicRequestCycle         ] [14:01:11]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:11 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:11 | E [d.S.BasicRequestCycle         ] [14:01:11]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:11 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:11 | E [d.S.BasicRequestCycle         ] [14:01:11]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:11 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:11 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:12 | E [d.S.BasicRequestCycle         ] [14:01:12]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:12 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:12 | E [d.S.BasicRequestCycle         ] [14:01:12]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:12 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:12 | E [d.S.BasicRequestCycle         ] [14:01:12]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:12 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:12 | E [d.S.BasicRequestCycle         ] [14:01:12]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:12 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:12 | E [d.S.BasicRequestCycle         ] [14:01:12]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:12 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:12 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:14 | E [d.S.BasicRequestCycle         ] [14:01:14]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:14 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:14 | E [d.S.BasicRequestCycle         ] [14:01:14]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:14 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:14 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:15 | E [d.S.BasicRequestCycle         ] [14:01:15]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:15 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:15 | E [d.S.BasicRequestCycle         ] [14:01:15]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:15 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:15 | E [d.S.BasicRequestCycle         ] [14:01:15]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:15 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:15 | E [d.S.BasicRequestCycle         ] [14:01:15]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:15 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:15 | E [d.S.BasicRequestCycle         ] [14:01:15]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:15 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:15 | E [d.S.BasicRequestCycle         ] [14:01:15]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:15 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:15 | E [d.S.BasicRequestCycle         ] [14:01:15]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:15 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:15 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:16 | E [d.S.BasicRequestCycle         ] [14:01:15]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:16 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:16 | E [d.S.BasicRequestCycle         ] [14:01:16]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:16 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:16 | E [d.S.BasicRequestCycle         ] [14:01:16]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:16 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:16 | E [d.S.BasicRequestCycle         ] [14:01:16]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:16 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:16 | E [d.S.BasicRequestCycle         ] [14:01:16]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:16 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:16 | E [d.S.BasicRequestCycle         ] [14:01:16]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:16 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:16 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:17 | E [d.S.BasicRequestCycle         ] [14:01:16]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:17 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:17 | E [d.S.BasicRequestCycle         ] [14:01:17]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:17 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:17 | E [d.S.BasicRequestCycle         ] [14:01:17]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:17 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:17 | E [d.S.BasicRequestCycle         ] [14:01:17]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:17 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:17 | E [d.S.BasicRequestCycle         ] [14:01:17]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:17 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:17 | E [d.S.BasicRequestCycle         ] [14:01:17]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:17 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:17 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:18 | E [d.S.BasicRequestCycle         ] [14:01:17]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:18 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:18 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:20 | E [d.S.BasicRequestCycle         ] [14:01:20]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:20 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:20 | E [d.S.BasicRequestCycle         ] [14:01:20]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:20 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:20 | E [d.S.BasicRequestCycle         ] [14:01:20]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:20 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:20 | E [d.S.BasicRequestCycle         ] [14:01:20]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:20 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:20 | E [d.S.BasicRequestCycle         ] [14:01:20]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:20 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:20 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:21 | E [d.S.BasicRequestCycle         ] [14:01:20]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:21 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:21 | E [d.S.BasicRequestCycle         ] [14:01:21]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:21 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:21 | E [d.S.BasicRequestCycle         ] [14:01:21]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:21 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:21 | E [d.S.BasicRequestCycle         ] [14:01:21]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:21 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.buildPacket(WriteRequest.java:123)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.preparePacket(WriteRequest.java:112)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest.sendMessage(WriteRequest.java:105)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.AbstractDriver$AdhocRequest.sendMessage(AbstractDriver.java:1283)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle$PendingRequest.sendMessage(BasicRequestCycle.java:415)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.sendRequest(BasicRequestCycle.java:230)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.driver.api.BasicRequestCycle.run(BasicRequestCycle.java:148)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at java.base/java.lang.Thread.run(Unknown Source)
INFO   | jvm 1    | 2022/12/08 15:01:21 | E [d.S.BasicRequestCycle         ] [14:01:21]: Exception caught during sendRequest(). device-name=S71500
INFO   | jvm 1    | 2022/12/08 15:01:21 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.util.S7ByteUtilities.getStringBytes(S7ByteUtilities.java:30)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.converters.DefaultValueConverter.convertValue(DefaultValueConverter.java:27)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.ValueBlockWriter.write(ValueBlockWriter.java:21)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestDataWriter.write(S7WriteRequestDataWriter.java:20)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.structs.writers.S7WriteRequestWriter.write(S7WriteRequestWriter.java:17)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.requests.WriteRequest$1.write(WriteRequest.java:126)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.TxPacket.<init>(TxPacket.java:32)
INFO   | jvm 1    | 2022/12/08 15:01:21 | 	at com.inductiveautomation.xopc.drivers.siemens.protocols.ProtocolStack.transmit(ProtocolStack.java:23)
INFO   | jvm 1    | 20