Connecting Up - Siemens SIMATIC S7-1500 Manual

Connecting up

This section provides information on the terminal assignment of the individual interfaces and
the block diagram of the CPU 1518-4 PN/DP MFP.
24 V DC supply voltage (X80)
The connector for the power supply is plugged in when the CPU ships from the factory.
The following table shows the signal names and the descriptions of the pin assignment for
a 24 V DC supply voltage.
Table 3- 1 Pin assignment 24 V DC supply voltage
View
Connector
1L+ and 2L+ as well as 1M and 2M are bridged internally.
1)
Maximum 10 A permitted
2)
If the CPU is supplied by a system power supply, it is not necessary to connect the 24 V
supply.
42
Signal name
1)
1 1L+
2 1M
3 2M
4 2L+
Designation
+ 24 V DC of the supply voltage
Ground of the supply voltage
Ground of the supply voltage for loop-through
+ 24 V DC of the supply voltage for loop-through
CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
Equipment Manual, 07/2021, A5E40882737-AB
3
2)
2)