Siemens SIMATIC ET 200SP Manual page 22

Digital input module, di 8x24vdc hf 6es713106bf00-0ca0

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Table of Contents

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

neighbor.

A potential group ends with the dark-colored BaseUnit, which follows a light-colored

BaseUnit or server module in the station configuration.

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