800xA Property Transfer - AddItems failed in 800xA OPC DA server
This customer has two redundant 800xA servers (server A and B): Aspect+Connectivity+Client. It's 800xA 5.0SP2 Rev.D.
It is used for data logging and supervision of gaz analyzers. All OPC points are mapped to SoftPoints objects through calculations service and property transfer service.
All services are redundant. But we have problems with the property transfer service on server A. For some reasons, it fails to add items in 800xA OPC DA Server. Every minute this message is displayed for a different point in system event list: "AddItems failed in 800xA OPC DA server". It is very strange because both servers have the same configuration and server B does not have this problem. And the calculation service on server A gets values from the same OPC server as the property transfer service.
For those failed items on server A, I can successfully subscribe to OPC values in their OPC control network in control structure. So, why property transfer can't also do it on this server?
Do you know what could cause this issue with property transfer service on server A?
What could we do to diagnose those timeouts?
Thanks for your help,
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