Siemens 400 V / 210...590 A operating instructions X300 serial interface, Pin Name Function Range

01.2004 Connecting-Up and Wiring

X300 serial interface

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A serial connection to an automation unit or PC can be made via connector X300 on the PMU. The unit can therefore be controlled and operated from the central control station or control room.

Pin		Name	Function	Range
1		n.c.	Not assigned
2	RS232 RxD		Receive data via RS232	RS232
3		RS485 P	Data via RS485	RS485
4		RTS	Request to send, for direction
			reversal with interface converters
5		M5V	Reference potential for P5V	0 V
6		P5V	5 V aux. voltage supply	+5 V, Imax = 200 mA
7	RS232 TxD		Transmit data via RS232	RS232
8		RS485 N	Data via RS485	RS485
9			Reference potential for RS232 or
			RS485 interface
			(with RF suppression for EMC)
Table 7-9		Serial interface X300

Siemens AG 6SE7087-6CX86-2BA1	7-15
SIMOVERT MASTERDRIVES AFE Operating Instructions