Siemens SIMATIC ET 200eco PN M12-L Equipment Manual page 21

Pin assignment of the socket for loop-through of the supply voltage (M12 L-coded)
The table below shows the pin assignment of the M12 L-coded socket for loop-through of the
supply voltage.
Table 3-4 Pin assignment of the supply voltage socket
Pin
I/O device digital inputs DI 16x24VDC M12-L 8xM12 (6ES7141-6BH00-0BB0)
Equipment Manual, 03/2023, A5E46570510-AD
Assignment of the
core color of the
power cable
1 Brown
2 White
3 Blue
4 Black
Assignment
X81 - socket (POWER output)
Supply voltage 1L+ (non-switched)
Ground 2M (switched)
Ground 1M (non-switched)
Load voltage 2L+ (switched)
Wiring
3.2 Pin assignment
Front view of the sock­
et
21