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
1
5
9
6
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.