System Manual

Table Of Contents
Readers
5.8 SIMATIC RF285R
SIMATIC RF200
System Manual, 03/2019, J31069-D0227-U001-A11-7619
169
5.8.3 Pin assignment
RS232
Table 5- 17 Pin assignment of the RS232 interface
Pin
Pin
Device end 8-pin M12
Pin assignment
RS232
1
+24 V
2
RXD
3
0 V / GND
4
TXD
5
Unassigned
6
Unassigned
7
0 V
8
Earth (shield)
5.8.4 LED operating display
The LEDs indicate the reader’s operating states. The LED can appear green, red, or yellow
and have the off
, on , or flashing status.
Table 5- 18 LED operating display on the reader
Label
LED
Meaning
PWR
The reader is turned off.
PWR
Supply voltage is on
ACT
Communication on the data line
PRE
Transponder present
ERR
Error when connecting the antenna or the interference level in
the antenna environment is too high