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




