No access to a "REFERENCE TO" variable

What happens?

The variable cannot be read via OPC-UA or the variable cannot be used in VisiWinNET (driver LogicAndMotionV3).

The error messages "BadNodeIdInvalid", "Publish failed" and "BadNodeIdUnknown" appear.

When does the behaviour occur?

There is another structure within a structure.

The inner structure is declared with "REFRENCE TO" in the outer structure.

Example:

Which products are affected?

Controller 3200C

Controller p500

Controller c300

Controller p300

Short-term measures:

Do not use "REFERENCE TO" constructs if you want to access these variables with a visualization via OPC-UA or the LogicAndMotionV3 driver.

Automatic Translation