Siemens simatic ET 200MP - C.3 Representation of Analog Values in the Current Measuring Ranges

Wiring
6.2 Operating the ET 200MP on grounded incoming supply
ET 200MP Distributed I/O System
System Manual, 01/2013, A5E03723484-01
55
ET 200MP in the overall configuration
The figure below shows the overall configuration of the ET 200MP distributed I/O system
(load current supply and grounding concept) with infeed from a TN-S network.
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① Main switch
② Short-circuit / overload protection
③ The load current supply (galvanic isolation)
Figure 6-1 Operating the ET 200MP with grounded reference potential