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Siemens Simatic ET 200SP Manual Page 18

Analog input module ai 2xu st.
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Parameters/address space
4.3 Explanation of the parameters
Potential group
A potential group consists of a group of directly adjacent I/O modules within an ET 200SP
station, which are supplied via a common supply voltage.
A potential group begins with a light-colored BaseUnit through which the required voltage is
supplied for all modules of the potential group. The light-colored BaseUnit interrupts the
three self-assembling voltage buses P1, P2 and AUX to the left neighbor.
All additional I/O modules of this potential group are plugged into dark-colored BaseUnits.
You take the potential of the self-assembling voltage buses P1, P2 and AUX from the left
A potential group ends with the dark-colored BaseUnit, which follows a light-colored
BaseUnit or server module in the station configuration.
See also
You can find additional information in the system manual ET 200SP distributed I/O system
Analog input module AI 2xU ST (6ES7134-6FB00-0BA1)
Manual, 12/2015, A5E36104728-AA


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