First off you have to set the initial questioning so that it can be logged in syslog.dat, which is easily done by writing DebugStr=*ALL for your driver in Citect.ini. ‘*’ can be replaced by the port name and that way that specific port will be logged.
For example M-Bus can look like the following:
[MBUSCIT]
DebugStr=Port1_Board1 ALL
Now you can see if a question is asked or if you get answers from your equipment.
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OPC och Citect

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