Experimental Physics and
Industrial Control System

Am Freitag, 26. Mai 2023, 06:18:51 CEST schrieb Blomley, Edmund (IBPT) via 
Tech-talk:
> Hey,
> 
> > Saying:
> >      field( INP, "@opcua1 str:123,MyObject.MyVariable" )
> >
> > does not work but I could find nothing in the documentation that describes
> > the syntax for this case.
> I think you are missing quotation marks around the strings. For your case I
> would try:
> 
> field( INP, "@opcua1 str:123,\"MyObject\".\"MyVariable\"" )
> 
> In general I find it helpful to use a OPC UA client to connect to the OPC
> server and look up the proper names of the relevant channels. For example
> this one: https://www.unified-automation.com/downloads/opc-ua-clients.html
> 
There is also a Python program called opcua-client that you can install via 
pip. 

Regards
Jörn

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