Siemens S7-1500R/H redundant system - Presentation by Amol Arvind Shirsat.
Architecture in Siemens S71500RH systems
Configuration in Siemens S71500RH systems
S7-1500 Redundancy & High Availability

1) S7-1500R uses the PROFINET ring (via the PROFINET interfaces X1) for the synchronization of
the two CPUs.
2) S7-1500H uses the redundancy connections over fiber-optic cables to
synchronize the two CPUs

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