Variables opc-ua don't work with my widget mappp view

Greetings,

I am encountering an issue with mapp View and OPC UA bindings.

Context:

  • Automation Studio
  • mapp View
  • CNC Application utilizing MpCnc3Axis

The PLC variables are functioning correctly:

  • Values update normally within the Watch window.
  • I can manually modify the variables via the Watch window.
  • The PLC program responds appropriately.

However, on the mapp View side:

  • PushButtons do not appear to modify the associated PLC variables.
  • NumericOutputs fail to refresh.

For instance, I have several NumericOutputs linked to the machine’s X, Y, and Z positions. While the values change correctly in the Watch window, the NumericOutputs on the HMI display static values.

I also have PushButtons bound to OPC UA variables. Upon pressing these buttons, I observe no value changes in the Watch window.

The project compiles without errors.

My questions are as follows:

  1. How can I verify that the mapp View OPC UA bindings are correctly connected to the PLC?
  2. Is there a diagnostic tool available to identify binding or communication errors within mapp View?
  3. Are the OPC UA references of the type ::Program:... appropriate in this context?
  4. Is additional configuration required to permit read and write access to the variables from mapp View?
  5. How can I confirm that the variables are properly exposed to the OPC UA server utilized by mapp View?

The observed behavior is as follows:

  • Variables update correctly in the Watch window.
  • mapp View widgets do not reflect these changes.
  • Commands sent from the widgets do not appear to reach the PLC.

Thank you for your assistance.

main.st.txt (2.1 KB)

Very likely your binding files is not in BindingSet in *.vis file of mappView.

Use mappView server diagnostic to see loaded bindings realated to active page.