
Description
2.3 Galvanic isolation
SIMATIC RF170C
18
Operating Instructions, 02/2022, J31069-D0176-U001-A6-7618
2.3
Galvanic isolation
Electrical isolation
ET 200pro with RF170C enables ungrounded setup of a system. The following circuit shows
the internal relationships of the reference potentials.
1)
As of hardware version "02" (6GT2002-0HD01)
With hardware version "01" (6GT2002-
0HD01) the resistance is 1 MΩ.
2:
As of hardware version "2" (6GT2002-0HD01)
With hardware version "1" (6GT2002-0HD01) the capacitance is 1 22 nF.
Figure 2-5
Electrical isolation for RF170C (ground to shield)