Siemens Simatic CFU - Page 131

Direct grounding
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If equipotential bonding (e.g. equipotential bonding line) is routed between explosion-prone
areas and safe areas, direct grounding can be implemented.
Note
CFU PA: Direct grounding
The protective braided shield of the fieldbus cables must be grounded.
Additional information
● Section "Grounding SIMATIC CFU with aluminum housing (Page 143)"
● Section "CFU PA in aluminum housing: Connecting the cable shields of the PROFIBUS PA
cables (Page 142)"
Compact Field Unit in the housing for use in a hazardous area
11.2 Grounding for configuration with SIMATIC CFU with aluminum housing
SIMATIC CFU
Commissioning Manual, 08/2019, A5E39252870-AD 131