Siemens SIMATIC ET 200SP Equipment Manual page 22

Parameters/address space
5.2 Explanation of 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.
Specify on which slot a light-colored BaseUnit with supply voltage feed or a dark BaseUnit is
located (see ET 200SP Distributed I/O System
(https://support.industry.siemens.com/cs/ww/en/view/58649293) System Manual).
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
neighbor.
The station configuration must be completed with a server module.
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Digital output module DQ 16x24VDC/0.5A HF (6ES7132-6BH00-0CA0)
Equipment Manual, 01/2024, A5E52818470-AA