Siemens SIMATIC MV540 H Operating Instructions Manual page 79

Interfaces / cable connection sockets
①
②
Figure 6-1
Pin assignment of the cables
You can power the optical reader either through the Power-IO RS232 or through the
communication module cable. Note that the DI/DQ functions cannot be used if the reader is
operated through a communication module.
SIMATIC MV500
Operating Instructions, 06/2018, C79000-G8976-C494-01
Combination interface for
Power supply, DI/DQ, RS232 and CM (M12, 12-pin)
Ethernet interface
Power over Ethernet (M12, 4-pin)
Interfaces / cable connection sockets of the SIMATIC MV540
Connection
6.3 Connecting the power supply
79