Siemens SIMATIC ET 200iSP Operating Instructions Manual page 122

Wiring
6.2 Operating the ET 200iSP with equipotential bonding
ET 200iSP in the overall configuration
The following schematic shows the distributed I/O device ET 200iSP within the overall
configuration in the Zone 1 hazardous area (supply voltage and grounding concept) when
powered from a TN-S system.
• Overall configuration with power supply PS DC24V
Figure 6-1 Operating ET 200iSP and PS DC24V with equipotential bonding
• Overall configuration with power supply PS AC120/230V
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Operating Instructions, 11/2022, A5E00247483-AK
ET 200iSP