Siemens SIMATIC RF600 Series System Manual page 151

Voltage infeed from external source with various voltages
Figure 5-25 Circuit example 6: Digital outputs
5.4.1.5 Pin assignment 24 VDC (RS-422)
Pin
These pins are not required if the reader is operated via Ethernet.
1)
Note
Do not use SIMATIC connecting cables with angled connectors
The knurled bolt of the M12 plug does not contact the shield (reader end). For this reason,
do not use SIMATIC connecting cables that use angled M12 plugs.
SIMATIC RF600
System Manual, 10/2016, J31069-D0171-U001-A19-7618
Pin Wire colors
Device end
8-pin M12
1 White
2 Brown
1)
3 Green
4 Yellow
1)
5 Gray
1)
6 Pink
1)
7 -
8 -
Assignment
+ 24 V
- Transmit
0 V
+ Transmit
+ Receive
- Receive
Unassigned
Earth (shield)
Readers
5.4 RF685R reader
151