Siemens SIMATIC S7-1500R/H

Additional information
You can find an overview of all new functions, improvements and revisions in the respective
firmware version on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109478459).
3.2 Configuration and operating principle
Structure
The S7-1500H redundant system consists of the following components:
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Two CPUs of the type CPU1517H‑3PN
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Two SIMATIC memory cards
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Four synchronization modules (two synchronization modules in each H-CPU)
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Two redundancy connections (two duplex fiber-optic cables)
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IO devices
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Load power supply (optional)
You mount the CPUs on a common mounting rail or spatially separated on two separate
mounting rails. You connect the two CPUs with fiber-optic cables to two synchronization
modules in each CPU.
You set up the PROFINET ring or the PROFINET network via the PROFINET interfaces X1 P1R
and X1 P2R of the CPUs (as of FW version V3.0: e.g. as line or mixed topology).
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① Optional load current supply
② First CPU
③ Mounting rail with integrated DIN rail profile
④ Second CPU
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CPU1517H-3PN (6ES7517-3HP00-0AB0)
Equipment Manual, 11/2022, A5E42011886-AD
Product overview
3.2 Configuration and operating principle