Siemens S7-1500 Manual page 20

Connecting
4.1 Safety regulations
Protection from electric shock
The S7-1500 automation system mounting rail must be connected (conductive connection)
to the protective conductor to prevent electric shock.
Protection from external electrical interference
The following section details the points to note to prevent electrical interference and faults:
● You must make sure that each plant or system fitted with an S7-1500 is connected to a
● For supply, signal and bus cables, you must make sure that the cables are correctly
● For signal and bus cables, you must make sure that an open circuit or crossover will not
Reference
Further information is available in the "Designing interference-free controllers" function
manual.
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protective conductor with a sufficient cross-section to deal with electromagnetic
interference.
routed and installed.
result in undefined plant or system states.
SIMATIC TOP connect for S7-1500 and ET200MP
Manual,