System Manual

Table Of Contents
Readers
5.9 SIMATIC RF290R
SIMATIC RF200
180 System Manual, 03/2019, J31069-D0227-U001-A11-7619
5.9.3 Pin assignment
RS422/RS232
Table 5- 23 Pin assignment of the RS-422/RS 232 interface
Pin
Pin
Device end 8-
pin M12
Pin assignment
RS-422
RS-232
1
+24 V
+24 V
2
- Transmit
RXD
3
0 V
0 V
4
+ Transmit
TXD
5
+ Receive
not used
6
- Receive
not used
7
not used
0 V
8
Ground (shield)
Ground (shield)
Digital input/output
Note that the digital input/output can only be used in PC mode (RS-232).
Table 5- 24 Pin assignment of the DI/DO interface
Pin
Pin
Device side,
4-pin, M12
Socket assignment
1
DO - relay contact COM (Common)
2
DO - relay contact NO (Normaly Open, NO contact)
3
DI - switched input, +24 V
4 DI - ground, 0 V
Figure 5-24 Pin assignment of the power supply connector