Re: What about the Task-Watchdog settings? Any recommendations to avoid runtime issues?
It highly recommended to setup the Watchdogs for any task configured. Have a look to the online help if needed.
Consider a programming mistakes (e.g. endless-loop) captures the cpu endlessly..., the PLC-runtime will collapse and block somehow. With the activated WD the runtime detects the malfunction and generates a WD exception at the ctrlX-diagnosis system. Otherwise without WD the whole system gets effected and even the diagnosis will not be fed anymore.
It will be hard to realisze the PLC-programm as reasonable for such a blockade in case the time-expanding of the programm growns randomly.