Siemens SIMATIC ET 200iSP Operating Instructions Manual page 106

Wiring
5.2 Operating the ET 200iSP with equipotential bonding
ET 200iSP within the overall configuration
The following schematic shows the ET 200iSP distributed I/O station within the overall
configuration in the Zone 1 hazardous area (power supply and grounding concept) when
powered from a TN-S system.
● Overall configuration with power supply PS 24 VDC
Figure 5-1 Operating the ET 200iSP and PS 24 VDC with equipotential bonding
● Overall configuration with power supply PS 120/230 VAC
106
Operating Instructions, 11/2017, A5E00247483-07
ET 200iSP