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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

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