Bad_NodeIdUnknown: The node id refers to a node that does not exist in the server address space

I found the difference in the PLC.

For example:

So, on the photoeyes had a PEType of “Jam” but the tags in the PLC were “Exit” which caused this error.

Changing that to the correct tag corrected the issue. You can tell if the path is incorrect by looking at the Ignition tags. If the tags for the photoeye that you are looking at say “Error_Configuration” then the PLC tag path is incorrect. We went in a verified PEType for that error should have said Exit_PE and not Jam.

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