Hello.,
we run into a problem while writing variables to the opc server. We write values successfully to a opc multiple times. If there is a pause of 20to 80 seconds between of two write operations, wittnessed that the later operation failed.
The write operation of QuickOpc itself returned without any error/Exception.
We record a trace file and the network connection via Wireshark.
What we saw in the Wireshark file was that there is a ServiceFault message (time: 334.105323) right after the (failed) WriteRequest message (time: 334.104346).
What is the cause of the ServiceFault message?
Why has no exception been thrown during the failed write? For us it's mandatory that we can rely on a successful write operation.
In the logs of our application we found the following exception:
The OPC-UA client session with connect sequence number 5 on endpoint URL "opc.tcp://192.168.xxx.xxx:4840/UADiscovery" has encountered a publish error with code 0x80850000 for subscription ID 0 and sequence number 0. The error might be from the Publish or the Republish service. Further publish errors with this code on this session will not be logged.
What does this exception tell us?
We will send you the log and traces via Email because they are confidential.
Best regards
we run into a problem while writing variables to the opc server. We write values successfully to a opc multiple times. If there is a pause of 20to 80 seconds between of two write operations, wittnessed that the later operation failed.
The write operation of QuickOpc itself returned without any error/Exception.
We record a trace file and the network connection via Wireshark.
What we saw in the Wireshark file was that there is a ServiceFault message (time: 334.105323) right after the (failed) WriteRequest message (time: 334.104346).
What is the cause of the ServiceFault message?
Why has no exception been thrown during the failed write? For us it's mandatory that we can rely on a successful write operation.
In the logs of our application we found the following exception:
The OPC-UA client session with connect sequence number 5 on endpoint URL "opc.tcp://192.168.xxx.xxx:4840/UADiscovery" has encountered a publish error with code 0x80850000 for subscription ID 0 and sequence number 0. The error might be from the Publish or the Republish service. Further publish errors with this code on this session will not be logged.
What does this exception tell us?
We will send you the log and traces via Email because they are confidential.
Best regards
