Siemens SIMATIC HMI OP 73micro User Manual

Specifications
11.3 Description of interfaces
OP 73micro, TP 177micro (WinCC flexible)
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0
147
11.3.3 RS 485 (IF 1B) on TP 177micro
Sub-d socket, 9-pin, with screw lock
15
96
Figure 11-5 RS 485 interface pin assignment
PIN Assignment
1 n. c.
2 GND 24 V
3 Data channel B (+)
4 RTS
5 GND 5 V
6 +5 V DC
7 +24 V DC, out (max. 100 mA)
8 Data channel A (–)
9 n. c.

Siemens SIMATIC HMI OP 73micro Specifications

General

Brand	Siemens
Model	SIMATIC HMI OP 73micro
Category	Control Panel
Language	English