Electrical connection
Leuze electronic
DCR 202i
31
Function as switching input
1
Switching input
2
Switching input to controller
Figure 7.3: Switching input SWIO3 and SWIO4 connection
Function as switching output
1
Switching output
2
Switching output from controller
Figure 7.4: Switching output SWIO3 and SWIO4 connection
RS 232/RS 422 interface
The RS 232/RS 422 interface is used primarily for outputting the read and decoded code contents of the
activated code types.
NOTICE
Maximum input current
The input current of the respective switching input is maximum 8 mA.
NOTICE
Maximum loading of the switching outputs!
Do not load the respective switching output of the code reader with more than 60 mA at
+18 … +30 V DC in normal operation.
Each configured switching output is short-circuit proof.
NOTICE
SWIO3 and SWIO4 as switching output!
Do not operate pins 2 and 4 as switching output if sensors which function as switching input are also
connected to these pins.
If, for example, the inverted sensor output is connected to pin 2, and pin 2 of the code reader is, at the
same time, configured as a switching output (and not as a switching input), the switching output mal
-
functions.
18-30 V DC
max. 8 mA
SWI (Pin 3)
SWIO (Pin 11/12)
VIN (Pin 1)
GNDIN (Pin 2)
2
1
18-30 V DC
SWO (Pin 4)
SWIO (Pin 11/12)
VIN (Pin 1)
VIN
GNDIN (Pin 2)
max. 60 mA
2
1
