Siemens SIMATIC ET 200S Manual - Page 32

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Siemens SIMATIC ET 200S Manual
Connecting
5.1 Connecting measuring sensors
Connection of isolated measuring sensors to analog inputs
The isolated measuring sensors are not connected to the local ground potential. They can be
floating.
The following figure illustrates the connection of isolated measuring sensors to a floating
analog input module:
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4
Logic
Backplane bus
Ground bus
Central grounding point
Isolated measuring sensors
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3
2AI RTD HF analog electronic module (6ES7134-4NB51-0AB0)
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Manual, 05/2007, A5E01076876-02