The AccessOPCUA OPC UA server in the process gateway allows write requests of OPC UA clients when the variable status is INVALID and updates the internal shadow value.

The AccessOPCUA OPC UA server in the process gateway allows write requests of OPC UA clients when the variable status is INVALID and updates the internal shadow value.

Summary

When a variable configured in the OPC UA server in the process gateway has status INVALID an OPC UA client can still write the value and the value will get updated in the OPC UA server itself. The value is not sent to the runtime and the PLC. An OPC UA client will receive the written value until the variable gets the status SPONT again and is updated from the runtime.

Description

When a variable configured in the OPC UA server in the process gateway has status INVALID an OPC UA client can still write the value and the value will get updated in the OPC UA server itself. The value is not sent to the runtime and the PLC. An OPC UA client will receive the written value until the variable gets the status SPONT again and is updated from the runtime.

Solution

An issue has been addressed in the OPC UA server in the process gateway. Writing values now no longer updates the internal value in the OPC UA server.



Issue Number: 29971
Fixed on Date: 24.10.2016
Versions: 7.60 0 BUILD 36068