For the connection of superior systems, another PLCs, operator panels, frequency converters and further peripheral modules a number of communication submodules is at disposal. The serial interface of the central and communication module is realized in case of the TECOMAT TC700, TC650, Foxtrot a Tempo system by fitting the submodule in the corresponding position on the module. In case the channel is not used, the position can remain free.

• RS-422 interface with galvanic isolation
• submodule with own power supply source and identification

The MR-0124 is used for the transmission of the TTL signals of the serial interface to the RS-422 with galvanic isolation. The interface allows the connection of two co-operating devices (point-point). Each line (RxD as well as TxD) has to be terminated at the line end by terminators 120 Ohm. The galvanic isolation of the serial interface is ensured by a built-in converter and no external power supply is required. Detailed information on the submodule, its internal connection and setup are described in the documentation TXV 101 04.

For more see Manual MR-0124