MR-0104 - the RS-232 interface, with galvanic isolation

Foxtrot basic modules 17.03.2020 16:58 17.03.2020 16:58

The MR-0104 submodule provides the conversion of TTL signals from serial interface to the RS-232 interface, including galvanic isolation. This interface is intended only for interconnection of two participants (point-to-point). It is suitable e.g. for connecting a TECOMAT PLC and PC for short distances (up to 15 m). Galvanic isolation of the serial interface is provided by a built-in converter and no external supply is required. More details concerning the submodule, its internal connection and settings are specified in the documentation TXV 004 03.

Table 1 Wiring of the CH2 serial channel connector fitted with the MR-0104 submodule.

	CP-10x4 CP-10x5	CP-10x6 CP-10x8	CP-1000 CP-1003 CP-1091	Signal	Type of signal	Usage
Terminals	C1	-	D1	+ 5 V	power output
	C2	D1	D2	GNDS	signal ground	signal ground of the isolated interface
	C3	D2	D3	RTS	output	control signal ¹⁾
	C5	D3	D5	CTS	input	control signal ¹⁾
	C7	D4	D7	RxD	input	data signal
	C8	D5	D8	TxD	output	data signal

¹⁾ Using the signal is described in the manual TXV 001 06. The idle signal level corresponds to logical level 1.