Hi,
I have problem with connecting Wago PLC WAGO 750-8212/0025-0002 configured as OPC UA client to Kepware OPC UA Server. I am using Codesys 3.5.19.70.

What I did so far.
To the Codesys project I added object Data Source Manager and configured connection OPC UA like below:
pic 1

Then I can browse the OPC server tags in “Variables” tab after prior trust on the server side of the client certificate created in the “Communication” tab:
pic 2

Additionally second certificate has been created in Codesys for runtime process in “Security screen” as well as the server certificate was approved here:
pic 3

But when I compiled project, downloaded it to PLC and go to RUN I can’t read selected in “Variables” tab, OPC Server tags. I am getting such error (ID: 7001):
pic 4

All two PLC certificates has been trusted in OPC server (Kepware) side:
pic 5
and
Kepware server configuration look like this:
pic 6

I can easily connect using third party OPC UA client UaExpert to Kepware server without problem.
In attachment I added also log from Kepware OPC UA server.
pic # - this specifies the number of a concrete graphic from one of the collective in attachment