Configuration With Isolated Modules - Siemens CPU 313C Hardware And Installation Manual

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The figure below shows a sample configuration of a CPU 31xC with isolated
modules. The connection is automatically generated for the CPU 31xC (1).
L1
L1
N
N
PE
Ground bus
in cabinet
L +
M
external
DC 24 V load power supply
Figure 5-9 Configuration with isolated modules
S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
A5E00105492-03
S7-300 CPU
PS
1
µ P
L +
M
DI DO
AC 230 V load
power supply
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U
internal
Data
M
internal
L1
N
5-21