Siemens Simatic S7-1500R - Connecting; Assignment of MAC Addresses Using the Example of a Single CPU

The following figure shows a configuration of the S7-1500H in a PROFINET ring.
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① H-CPU
② PROFINET cable (PROFINET ring)
③ Redundancy connections (fiber-optic cables)
④ IO device
⑤ Switch
Figure 4-5S7-1500H configuration with IO devices in the PROFINET ring
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S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
System overview
4.1 What is the S7-1500R/H redundant system?