Siemens SIMATIC RF600 Series System Manual page 126

Readers
5.3 RF680R reader
Voltage infeed from external source with various voltages
Figure 5-16 Circuit example 6: Digital outputs
5.3.1.5 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.
126
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)
System Manual, 10/2016, J31069-D0171-U001-A19-7618
SIMATIC RF600