Siemens Simatic S7-1500H, Системное руководство

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Application planning
3.6 Hardware configuration
S7-1500R/H redundant system
88
System Manual, 10/2018, A5E41814787-AA
3.6 Hardware configuration
Modules suitable for R/H-CPUs
The integrated system power supply of the R/H-CPU supplies the required power for
operation. Optionally, you can also use a system power supply (PS) or load power supply.
The system power supply (PS) must be connected to the left of the primary and backup
CPU.
The system power supply PS and load power supply PM cannot be configured with S7-
1500R/H in STEP 7. The RUN LED of the PS therefore flashes permanently. You cannot
evaluate pending diagnostics or errors of the PS over the R/H-CPUs.
The table below shows which modules can be used in the various R/H-CPU slots:
Table 3- 5 Assignment of slot numbers
Module type Maximum number of mod-
ules, primary CPU (mount-
ing rail)
Maximum number of mod-
ules, backup CPU (mounting
rail)
Load power supply (PM)
1)
unlimited unlimited
System power supply (PS)
2)
1 1
CPU 1 1
1)
No connection to the backplane bus.
2)
Connection to the backplane bus cannot be configured. The RUN LED on the PS flashes green.
①
Optional load power supply and first R/H-CPU
②
Optional load power supply and second R/H-CPU
Figure 3-21 Maximum configuration