Trouble with string tag from Brother CNC OPC/UA client connection

[Ryan_Coe]

I have added an OPC tag with a string value. The connection to the CNC is made from Ignition (client) to the OPC/UA server on the CNC. I'm trying to read the value of a macro variable. In the tag browser, I only ever see a null value. The quality is good. On the OPC quick client, I can successfully get the value. In an external OPC/UA client, I can also see the value returned. I am also able to script it and read the value. I'm at a total loss on this. Below are a few screen shots showing the issue:

Tag browser and editor.

OPC quick client with value

Ignition scripting client

[pturmel]

Try creating a tag group set to OPC polling instead of subscribing. (And change the tag to that group.) If that works, complain to the vendor that their OPC server is broken.

[Ryan_Coe]

Thanks. I will give it a try.

[Ryan_Coe]

Thank you. Changing to another tag group with polling does work. I will raise the issue with the vendor.