Description Of The Ports; Power Supply; Profibus (Sub-D Rs422/485) - Siemens SIMATIC KP400 Comfort Operating Instructions Manual

8.6

Description of the ports

8.6.1

Power supply

Plug connector, 2-pin
8.6.2

PROFIBUS (Sub-D RS422/485)

Name of interface on HMI device: X2
Sub-D socket, 9-pin, with screw lock
Comfort Panels
Operating Instructions, 03/2012, A5E03404994-02
Pin number
1
2
Pin
1
2
3
4
5
6
7
8
9
+24 VDC (L+)
GND 24 V (M)
Assignment for the RS 422
n. c.
GND 24 V
TxD+
RD+
GND 5 V, floating
+5 VDC, floating
+24 VDC, out (max. 100 mA)
TxD–
RxD–
Technical Support
Assignment
Assignment for the RS 485
n. c.
GND 24 V
Data channel B (+)
RTS
GND 5 V, floating
+5 VDC, floating
+24 VDC, out (max. 100 mA)
Data channel A (–)
NC
205