Unable to read OPC UA variables from server

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Cheng Wei N asked Feb 25, '21 Cheng Wei N commented Feb 26, '21

Unable to read OPC UA variables from server

I am able to detect the variable under Node ID and I tried to use the code below to read the variable value but unable to do so. In another OPC UA client that I tested, it is able to read the value just fine. The server is a python script running locally attached below. Would appreciate the help.

New Python File.py

double value = Emulation.Variable("myvar").value;
return value;

Software Version:

FlexSim 21.0.2

flexsim 21.0.2 opc ua variables

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new-python-file.py (1.1 KiB)

Answer 1 · 2021-02-25T17:50:47Z

Jason Lightfoot answered Feb 25, '21 Cheng Wei N commented Feb 26, '21

It works for me on a local host :

Can you try that? If that works I wonder if it could be a security issue.

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· 1

Cheng Wei N commented · Feb 26, 2021 at 01:51 AM

Ok the issue is resolved. I think I did not reset and run my model, that could be the reason why the variable value did not update. Thanks for your time!

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