Electrical connection
Leuze electronic
DCR 202i
29
1
PWR / SWIO, M12 plug, 12-pin, A-coded
2
HOST, M12 socket, 4-pin, D-coded
Figure 7.1: Electrical connections
Voltage supply, RS 232/RS 422 and switching inputs/outputs
The voltage supply (18 … 30 V DC) is connected at the PWR / SWIO M12 plug.
The RS 232/RS 422 interface on the PWR / SWIO M12 plug is directly connected to the host.
To connect to other fieldbus systems, e.g., PROFIBUS, PROFINET, EtherCAT, etc., Leuze electronic
offers various connection units (see chapter 7.6 "Connecting code reader to fieldbus").
Four freely programmable switching inputs/outputs for individual adaptation to the respective application
are also available on the PWR / SWIO M12 plug.
Standalone operation in Ethernet network
The code reader is operated as a stand-alone single device in an Ethernet star topology with individual
IP address. The host interface of the superior system is connected to the HOST M12 socket.
7.2
PWR / SWIO – voltage supply / RS 232/RS 422 / switching inputs/outputs
12-pin M12 plug (A-coded)
Figure 7.2: PWR / SWIO connection
Table 7.1:
PWR / SWIO pin assignment
Ready-made cables are available for all connections (see chapter 15.4 "Cables accessories").
PWR / SWIO
HOST
1
2
4
11
3
2
1
10
9
8
12
5
6
7
Pin
Designation
Core color
Assignment
1
VIN
Brown
+18 … +30 V DC operating voltage
2
GNDIN
Blue
Negative operating voltage (0 V DC)
3
SWI1
White
Digital switching input 1 (default: Trigger )
