Siemens SIMATIC S7-1500 System Manual page 100

Application planning
5.3 Configuration versions
S7-1500H configuration with R1 devices in a combined topology
①
②
③
④
⑤
⑥
⑦
Figure 5-20 S7-1500H configuration with R1 devices in a combined topology
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CPU 1
CPU 2
Two fiber-optic cables (redundancy connections)
Combined topology 1
Combined topology 2
IO device ET 200SP HA (with system redundancy R1)
IO device ET 200SP (with system redundancy R1)
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD