grounded at one defined point. Here, once again the grounding is implemented with the lowest
leakage resistance to ground in the vicinity of the power feed-in.
With automation components, functional ground also ensures interference-free operation of a
controller. Via the functional ground, interference currents coupled in via the connecting cables
are discharged to ground.
Connecting up
5.6 Functional ground
SCALANCE XC-200
56 Operating Instructions, 12/2017, C79000-G8976-C442-03