Siemens SIMATIC ET 200AL System Manual page 352

Pin assignment of the socket for loop-through of the supply voltage
The table below shows the pin assignment of the socket for loop-through of the supply
voltage.
Table 3- 4
Pin
1
2
3
4
NOTICE
ET-Connection/supply voltage
Observe the correct wiring of the M8 sockets for ET-Connection and the supply voltage.
Mixing up the ET-Connection connectors and the connectors for the supply voltage can
destroy the module.
DI 8x24VDC 8xM8 (6ES7141-5BF00-0BA0)
Equipment Manual, 08/2021, A5E32349579-AD
Pin assignment of the supply voltage socket
Assignment
X81 socket (POWER output)
Supply voltage 1L+ (non-switched)
Ground 2M (switched)
Ground 1M (non-switched)
Load voltage 2L+ (switched)
Assignment of the
wire color of the
power line cable
Brown
White
Blue
Black
Wiring
3.2 Pin assignment
Front view of the
socket
15