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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | opc ua |
| From: | "Sinclair, John via Tech-talk" <tech-talk at aps.anl.gov> |
| To: | tech-talk <tech-talk at aps.anl.gov> |
| Date: | Thu, 25 May 2023 20:30:35 +0000 |
|
I have a simple IOC talking to an opc/ua simulation server using the open open62541 library.
I do not know how to identify an opc variable which is a member of an object except for displaying its numeric index on the server.
The object name is MyObject, the variable is MyVariable.
Saying:
field( INP, "@opcua1 num:123,2" )
works, because i determined the variable's index(2, in the above) on the server.
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 also tried MyObject:MyVariable without success.
Does anyone know the correct syntax?
Thanks,
John Sinclair
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