For a connection to a Moeller XC PLC it is very important to use the latest SucomA-Library (AN2700K25 V 1.1) within X-Soft. Older version can't communicate with an Alrm Modem.
Furthermore the SucomA communication to PS4-201 or XC is currently only possible via COM2/COM3 of an Alarm Modem. The COM1 interface is not available.
With a PS4-341 all interfaces are valid.
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