Siemens SIMATIC RF185C Operating Instructions Manual page 43

Table 5- 4
Pin
I/O interface (RF18xCI)
Note that a single input, a single output or an IO-Link module (e.g. IO-Link module K20) can
be connected to the I/O interface.
Table 5- 5
Pin
SIMATIC RF185C, RF186C, RF188C, RF186CI, RF188CI
Operating Instructions, 04/2020, C79000-G8976-C512-03
Pin assignment reader interface; M12 socket (8-pin, A-coded)
Assignment
RS422
1 +24 V
2 -RxD
3 0 V
4 +RxD
5 +TxD
6 -TxD
7 --
8 Functional ground
/ shielding
Pin assignment I/O interface; M12 socket (5-pin, A-coded)
Assignment
1 1L+: +24 V, IO-Link
2 2L+: +24 V, for IO-Link module
Class B
3 1N: GND, IO-Link
4 C/Q: Data cable for
IO-Link
•
a single digital input
•
a single digital output
•
5 2N: GND, for IO-Link module
Class B
5.5 Connecting the communications module
RS232
+24 V
--
0 V
RxD
+5 V
--
TxD
Functional ground
/ shielding
View of M12 socket, 8-pin
View of M12 socket, 5-pin
Connection
43