Siemens SIMATIC MV550 S Operating Instructions Manual page 81

Communication module cable
You use the communication module cable to connect the communication modules (e.g.
RF180C and ASM 456) to the optical reader. The communication module cable is pre-
fabricated.
Note that when using the power supply via the communication module, you must enable the
setting "Settings > Options > Lighting > Power supply via POU or CM".
Figure 6-3
Table 6- 2
Pin
1
2
3
4
5
6
7
8
Pin assignment ↔ socket/wire color of the cable/signal connector of the optical reader
SIMATIC MV500
Operating Instructions, 05/2019, C79000-G8976-C494-02
Pin assignment of communication module plug
Communication module cable, M12 (male, 8-pin) / M12 (female, 8-pin)
Wire color Signal name
White 24 V
Brown TxD_N
Green 0 V
Yellow TxD_P
Gray RxD_P
Pink RxD_N
Blue Not connected
Red Shield
Connection
6.3 Connecting the power supply
SIMATIC MV500
24 V DC power supply
Send data -
Ground
Send data +
Received data +
Received data -
-
-
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