Male connector Pin Signal Meaning Color
1 L+ 24 V supply voltage Brown
2 Sync_A Synchronization White
3 M GND supply voltage Blue
4 Test_In Test input Black
5 Sync_B Synchronization Gray
Table 24: Pin assignment, MLG-2 Pro sender
Connection for receiver configuration: M12/4-pin, D-coded
Female connector Pin Signal Meaning
1 TX+ Ethernet
2 RX+ Ethernet
3 TX– Ethernet
4 RX– Ethernet
Table 25: Pin assignment, MLG2 Pro receiver, Ethernet
Receiver I/O connection with switching outputs (Q): M12/8-pin, Acoded
Male connector Pin Signal Meaning Color
1 L+ 24 V supply voltage Brown
2 Sync_A Synchronization White
3 M GND supply voltage Blue
4 Q1/C Switching output 1 with
IO-Link interface
Black
5 Sync_B Synchronization Gray
6 Q2/IN1 Switching output 2 or
Switching input 1
1
Pink
7 Q3 Switching output 3 Violet
8 Q4/IN2 Switching output 4 or
Switching input 2
1
Orange
Table 26: Pin assignment, I/O, MLG2 Pro receiver, with 4 × Q
1
Configurable
Receiver I/O connection with analog outputs (QA): M12/8-pin, Acoded
5
ELECTRICAL INSTALLATION
44
O P E R A T I N G I N S T R U C T I O N S | MLG-2 Pro 8017460.ZIK1/2017-02-13 | SICK
Subject to change without notice