Electrical Configuration - Siemens Simatic S7-1500R System Manual

5.3

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.
Figure 5-2
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA
Potentials in S7-1500R/H using the example of CPU 1515R-2 PN
Wiring
5.3 Electrical configuration
113