[jzamora_SATI]

Hello, I'm trying to to connect RoboDK to an OPC UA Server. When I start RoboDK OPC UA Client it connects without any issues, I do get the message "Server variables retrieved", but no nodes are added in Station Parameters.

The OPC-UA Log shows "is not a variable" messages.

I'm certain that my OPC Server is working correctly since I can browse nodes and see their values in UAExpert OPC UA Client software.

As an OPC UA Server I'm using KepServerEX and Siemens S71200 PLC embedded OPC UA Server. Same issue with both of them.

Can you please tell me what the problem could be and how to solve it ?

Thank you un advance.

[Sam]

Is your OPC-UA server enforcing SSL encryption? This is usually the case for Siemens. At the moment, the OPC UA plugin for RoboDK does not support it.

[jzamora_SATI]

Hello, thank you for your response, I double checked and I'm not enabling any kind of security feature in Siemens TIA Portal Project Configuration.

The only certificate that must be present is the server PLC Certificate. But the client certificate is not mandatory.

It seems like the RoboDK OPC UA Client is connecting to the OPC UA Server on the PLC, because in RoboDK OPC-UA Log, there in no error message regarding the connection, the log is showing that the nodes are not variables. Please see attached image.

Any other idea of what could be happening?

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Update:
I found this thread: https://robodk.com/forum/Thread-OPC-UA

It is mentioned in the reply: 
"If you want RoboDK to work as a client you may need to customize the plugin with some coding (GitHub link)."

What is the person replying meaning with this statement? Is there a document or tutorial that explains in detail this customization?

[Albert]

The RoboDK plugin to enable OPC-UA is open source and you can find the source code in the GitHub link provided. More precisely you can find it here:
https://github.com/RoboDK/Plug-In-Interf...gin-OPC-UA