Here a list of the most important things, when using the template:
Both projects WebIQ and PLC are examples that can be adapted to your own requirements.
The HMI only works if WebIQ and the matching PLC project are installed together
This is important because many features are implemented in the PLC and are only displayed on the HMI.
When changing or deleting a feature, you must be aware of the consequences. For example, delete the communication monitoring as you have described. Some things will no longer work, or worse, you will get errors and side effects that would otherwise not occur.
The communication monitoring runs via heartbeat, this ensures that not only the OpcUa communication works, but also that the PLC program is running.
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