Product overview
2.2 Configuration and operating principle
CPU 1517H-3 PN (6ES7517-3HP00-0AB0)
Equipment Manual, 11/2019, A5E42011886-AB
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2.2
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)
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System power supply (optional)