Siemens SIMATIC Ident Operating Manual page 14

Connecting hardware
3.1 The PC adapter for SIMATIC RF-DIAG
Pin assignment of the connecting cable between PC adapter and CM or wide-range power
supply unit
Table 3- 2
View of M12 socket
Pin assignment for connecting to the RF readers
Pin assignment of the connector for PC adapter and UHF reader
Table 3- 3
Pin
The knurled bolt of the M12 plug does not contact the shield (reader end).
14
RS-422 connecting cable
RS-422 interface of the PC adapter (female connector)
M12 Core Pin assignment
pin color for CM
1 White 24 VDC
2 Brown TX neg
3 green GND
4 Yellow TX pos
5 gray RX pos
6 pink RX neg
7 Blue Not used
8 Red Ground (shield)
Pin Assignment for the RF readers
Device end 8-
pin M12
1 + 24 V
2 - Transmit
3 0 V
4 + Transmit
5 + Receive
6 - Receive
7 Free
8 Ground (shield)
Operating Manual, 09/2012, C79000-G8976-C292-01
Pin assignment
for wide-range
power supply
unit
24 VDC
Not used
GND
Not used
Not used
Not used
Not used
Ground (shield)
SIMATIC RF-DIAG