Wiring
3.2 Pin assignment
IM 157-1 PN (6ES7157-1AB00-0AB0)
Equipment Manual, 05/2021, A5E32347036-AE
25
Pin assignment of the socket for loop-through of the supply voltage
The following table shows the pin assignment for loop-through of the supply voltage.
Table 3- 4
Pin assignment of the supply voltage socket
Pin
Assignment
Assignment of the
wire color of the
power line cable
Front view of the
socket
X81 Socket (power output)
1
Supply voltage 1L+ (non-switched)
Brown
2
Ground 2M (switched)
White
3
Ground 1M (non-switched)
Blue
4
Load voltage 2L+ (switched)
Black
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.
CAUTION
PROFINET IO
Modules with PROFINET interfaces may only be operated under the following condition:
All connected devices must be equipped with SELV/PELV power supplies.
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