OPC UA Client to Kepware OPC UA Server

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.

Verry sorry for adding references to pictures instead add them directly under each sections. I can’t include more than one image as a new user and without additional drawings the post would have a weak explanation may be incomprehensible. I hope this will be understood

Hi Macman,

Do you possibly have bad certificates in the “Quarantined Certificates” section in Codesys? If so, delete them and try to reconnect.

Regards,

Hi Jacob,
Thank you for response. I checked and there is nothing in “Quarantined Certificates” folder and no unknown certs on server site too so suspect that all should be fine with certificates.

Another thing I notice is that one of your “Own Certificates” is expired…

Here is what my screen looks like:

Have you tried or been successful connecting anonymously without using authentication? I recommend this as a first step before adding the OPCUA securities.