Siemens simatic hmi op27 Equipment Manual page 172

Connector The connectors of modules CPI 1 and CPI 2 have the following pin assign-
ments:
The controls and light indicators to be driven are connected by means of the
9-pin connectors supplied.
S
S
OP27, OP37 Equipment Manual
Release 05/99
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CPI 1
)1
GND
DO 16 to DO 1
1)
GND
CPI 2
1)
DO 32 to DO 17
GND
1)
GND
1)
Non-floating
Make the cable terminal connections
(conductor cross-sections 0.5 to 2.5 mm
Seat the terminal blocks on the adapters of the CPI module boards.
DI 16 to DI 1
DI 32 to DI 17
2
)
Options
+24V DC ext.
+24V DC ext.
+24V DC ext.
+24V DC ext.
18-15