Siemens SIMATIC S7-1500 System Manual page 233

Application planning
6.8 System power supply
Configuration with system power supply
Configuration example with R-CPU and infeed of the supply voltages at 2 system power
supplies PS 25 W 24 V DC:
Figure 6-65
Configuration example with H-CPU and infeed of the supply voltages at H-CPU (external) and
system power supply PS 25 W 24 V DC:
Figure 6-66
232
Configuration example R-CPU with 2 system power supplies
Configuration example of H-CPU with external supply and system power supply
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF