Siemens SIMATIC S7 EIP-200S System Manual page 62

Installation and wiring
3.7 Operating the ET 200S on a grounded supply
Overall configuration of the ET 200S
The following illustration shows the overall configuration of the ET 200S distributed I/O
system (load voltage supply and grounding concept) with supply from a TN-S system.
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EIP-200S Ethernet/IP Adapter Distributed I/O System
System Manual, 06/2018, A5E44345053-AB