Hi,
System started behaving oddly and now about 70% of the tags are returning following error:
Error occurred in tag: Unable to convert the incoming value [[OPERATION_FAILED] null] to the datatype of the tag [Float4].
Quality of the tag is good and designer is showing it with light blue color and everything seems to be fine except for this error for most of the tags (and those values are not shown correctly).
At the moment I’m using Scan Class in Read mode, not in subscribe.
Everything was working all right yesterday. There was added couple of tags (those tags are fine and working) and OPC-UA server was updated with those tags too. After powering up this morning this problem occured and was first notified.
Also seeing lot of these in log file:
ERROR [Provider[default] ] [09:36:26,949]: Unexpected error executing scan class.
INFO | jvm 1 | 2013/08/15 09:36:27 | java.lang.NullPointerException
INFO | jvm 1 | 2013/08/15 09:36:27 | at com.inductiveautomation.xopc.client.OpcUaConnection.readPartition(OpcUaConnection.java:201)
INFO | jvm 1 | 2013/08/15 09:36:27 | at com.inductiveautomation.xopc.client.OpcUaConnection.read(OpcUaConnection.java:188)
INFO | jvm 1 | 2013/08/15 09:36:27 | at com.inductiveautomation.xopc.client.FailoverAwareOpcUaConnection.read(FailoverAwareOpcUaConnection.java:107)
INFO | jvm 1 | 2013/08/15 09:36:27 | at com.inductiveautomation.ignition.gateway.opc.OPCManagerImpl$ServerWrapper.read(OPCManagerImpl.java:710)
INFO | jvm 1 | 2013/08/15 09:36:27 | at com.inductiveautomation.ignition.gateway.opc.OPCManagerImpl.read(OPCManagerImpl.java:436)
INFO | jvm 1 | 2013/08/15 09:36:27 | at com.inductiveautomation.ignition.gateway.opc.CustomSubscriptionManager.executeSubscription(CustomSubscriptionManager.java:104)
INFO | jvm 1 | 2013/08/15 09:36:27 | at com.inductiveautomation.ignition.gateway.opc.CustomSubscriptionManager.execute(CustomSubscriptionManager.java:88)
INFO | jvm 1 | 2013/08/15 09:36:27 | at com.inductiveautomation.ignition.gateway.sqltags.scanclasses.SimpleExecutableScanClass.run(SimpleExecutableScanClass.java:860)
INFO | jvm 1 | 2013/08/15 09:36:27 | at com.inductiveautomation.ignition.common.execution.impl.BasicExecutionEngine$TrackedTask.run(BasicExecutionEngine.java:573)
Version 7.5.7 in use, java 7 update 25. Windows 7