Siemens Simatic S7-1500H - Electrical Configuration; Wiring Rules

7.3 Electrical configuration
Galvanic isolation
In the redundant System S7-1500R/H, there is electrical isolation between:
•
The communication interfaces (PROFINET) of the R-CPU and all other circuit components
•
The communication interfaces (PROFINET) of the H-CPU and all other circuit components
High-frequency interference currents are conducted and electrostatic charges are avoided
through integrated RC combinations or integrated capacitors.
S7‑1500R/H potentials
The figure below is a simplified diagram of potentials in the S7-1500R/H redundant system.
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Figure 7-2Potentials in S7‑1500R/H using the example of CPU1515R‑2PN
7.4 Wiring rules
Introduction
Use suitable cables to connect the S7-1500R/H redundant system. The tables below set out
the wiring rules for the R/H-CPUs and load current supply.
174
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
Wiring
7.4 Wiring rules