Siemens SIMATIC MV500 Operating Instructions Manual page 121

Communication module cable
You use the CM adapter 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
Industrial Ethernet connecting cable
Connect a PC/PG (for control and operation) to the optical reader using a prefabricated
Ethernet cable.
Attach the Ethernet cable to a switch to connect the optical reader to an S7 controller via
onboard PROFINET IO.
Figure 6-4
SIMATIC MV500
Operating Instructions, 03/2021, C79000-G8976-C494-05
Pin assignment of communication module plug
Communication module cable, M12 (female, 12-pin) / M12 (male, 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
Pin assignment of "X1 LAN1" Ethernet socket (M12, 4-pin) ③
Connection
6.3 Connecting the reader
Meaning
24 V DC power supply
Send data -
0 V DC power supply
Send data +
Received data +
Received data -
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