Differences between OPC server in version 7.7 and 7.8

Hi,

I find that the tag path for OPC tags (expose option set to true) in 7.7.8 is for example “ns=2:s=[System]Gateway/Redundancy/IsActive” where as in 7.8 it was “ns=2;s=[System]Gateway/Redundancy/IsActive” (the : instead os ; after ns=2). Also in spite of changing ; to : in my tag paths, the OPC client returns null (tag not found) for all tags! Are there any major changes between version 7.7 & 7.8?

regards
prafull

The issue was related with CD-KEY having OPC UA permissions on it. Its resolved now.
So there are no changes as far as OPC UA version 7.7 & 7.8 are concerned!
Thanks a lot.

regards
prafull

Although OPC UA server is running and OPC Client is able to access the tags, but I keep getting following warnings in the log file of Ignition. The log file keeps growing by a KB or so per second! How to stop these warning?

INFO | jvm 1 | 2016/04/27 12:08:23 | WARN [ReadService ] [12:08:23,675]: Returning ServiceFault for request: com.inductiveautomation.opcua.types.messages.ReadRequest@660c8fe8. StatusCode=StatusCode[Severity=Bad, Subcode=Bad_SessionIdInvalid]
INFO | jvm 1 | 2016/04/27 12:08:23 | WARN [OpcUaConnection[Ignition OPC-UA Server]] [12:08:23,676]: Error reading server time and state: ServiceFault: StatusCode[Severity=Bad, Subcode=Bad_SessionIdInvalid]
INFO | jvm 1 | 2016/04/27 12:08:23 | StatusCode[Severity=Bad, Subcode=Bad_SessionIdInvalid]: ServiceFault: StatusCode[Severity=Bad, Subcode=Bad_SessionIdInvalid]
INFO | jvm 1 | 2016/04/27 12:08:23 | at com.inductiveautomation.xopc.client.stack.TCPClientChannel.validateResponseType(TCPClientChannel.java:832)
INFO | jvm 1 | 2016/04/27 12:08:23 | at com.inductiveautomation.xopc.client.stack.TCPClientChannel.receiveMessage(TCPClientChannel.java:793)
INFO | jvm 1 | 2016/04/27 12:08:23 | at com.inductiveautomation.xopc.common.stack.UAChannel$1DeliverMessage.deliver(UAChannel.java:967)
INFO | jvm 1 | 2016/04/27 12:08:23 | at com.inductiveautomation.xopc.common.stack.UAChannel$DeliverToDelegate.run(UAChannel.java:1599)
INFO | jvm 1 | 2016/04/27 12:08:23 | at com.inductiveautomation.xopc.client.stack.SerialExecutionQueue$RunnableExecutor.execute(SerialExecutionQueue.java:100)
INFO | jvm 1 | 2016/04/27 12:08:23 | at com.inductiveautomation.xopc.client.stack.SerialExecutionQueue$RunnableExecutor.execute(SerialExecutionQueue.java:97)
INFO | jvm 1 | 2016/04/27 12:08:23 | at com.inductiveautomation.xopc.client.stack.SerialExecutionQueue$PollAndExecute.run(SerialExecutionQueue.java:75)
INFO | jvm 1 | 2016/04/27 12:08:23 | at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
INFO | jvm 1 | 2016/04/27 12:08:23 | at java.util.concurrent.FutureTask.run(FutureTask.java:266)
INFO | jvm 1 | 2016/04/27 12:08:23 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
INFO | jvm 1 | 2016/04/27 12:08:23 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
INFO | jvm 1 | 2016/04/27 12:08:23 | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
INFO | jvm 1 | 2016/04/27 12:08:23 | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
INFO | jvm 1 | 2016/04/27 12:08:23 | at java.lang.Thread.run(Thread.java:745)

Problem resolved on installing newly requested OPC UA License key.
Please ignore my previous mails.

regards
prafull