Pin Assignment Of The Rs422 Interface; Pin Assignment Of The Connecting Cable - Siemens SIMATIC RF600 System Manual

5.1.1.3

Pin assignment of the RS422 interface

Pin
The knurled bolt of the M12 plug is not connected to the shield (on the reader side).
Note
You must therefore not use any SIMATIC connecting cables that use the angled M12 plug.
5.1.1.4

Pin assignment of the connecting cable

Table 5-1
M12 pin
1
2
3
4
5
6
7
8
Comment
This cable has an 8-pin M12 connector at one end and the other cable end is 'open'. There
are 8 color-coded single cores there for connecting to external devices. There are different
cable lengths in the product range (3 m to 50 m). Long cables can be reduced if necessary.
SIMATIC RF600
System Manual, 06/2010, J31069-D0171-U001-A10-7618
Pin
Device end
8-pin M12
1
2
3
4
5
6
7
8
RS 422 - on reader side
Core color Pin assignment
white 24 VDC
brown TX neg
green GND
yellow TX pos
Gray RX pos
pink RX neg
blue Not assigned
red Earth (shield)
Draft Version 02.06.2010
Assignment
+ 24 V
- Transmit
0 V
+ Transmit
+ Receive
- Receive
Free
Earth (shield)
View of M12 connector
Readers
5.1 RF620R reader
83