Interface Assignments - Siemens simatic hmi op27 Equipment Manual

Interface Assignments

IF1A and IF2
Pin assignment of the 15–pin Sub-D socket:
8 1
15 9
1)
OP27, OP37 Equipment Manual
Release 05/99
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Pin General
1 Housing
2
3
4
5
6
7
8 Housing
9
10
11
12 GND
13
14 +5 V
15 GND
Not IF2
RS232 TTY
RxD–
RxD
TxD
CTS
TxD+
TxD–
RxD+
RTS
+20 mA
+20 mA
B
1)
1)
B-1