Connection
5.3 Electrical design of the CM
SIMATIC RF185C, RF186C, RF188C, RF186CI, RF188CI
Operating Instructions, 04/2020, C79000-G8976-C512-03
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5.3
Electrical design of the CM
Electrical isolation
In the electrical design of the communication module, electrical isolation is provided
between:
●
Load voltage 2L+ and all other circuit components
●
Communication interfaces (PROFINET) of the communication module and all other circuit
components
The following figure shows the potential relationships of the communication modules.
Figure 5-6
Potential relationships of the communication modules