Siemens SIMATIC ET 200SP Manual page 20

Parameters

4.3 Explanation of the module/channel parameters

Hardware interrupts negative edge

Specifies if a hardware interrupt should be generated for a falling edge.

Potential group

A potential group consists of a group of directly adjacent I/O modules within an ET 200SP

station HA, which are supplied via a common supply voltage.

A potential group begins with a light terminal block, via which the required supply voltage is

fed to all I/O modules of the potential group. The light-colored terminal block interrupts the self-

assembling voltage buses to the left neighbor

All other I/O modules of this potential group are plugged into dark terminal blocks. I/O modules

on dark terminal blocks take the potentials of self-assembling voltage rails from the left

neighbor.

A potential group ends with the dark terminal block, which follows a light terminal block or a

server module in the station configuration.

You can find additional information on the configuration of the potential group in the system

manual

20

SIMATIC; Distributed I/O System; ET 200SP HA .

Digital Input Module DI 16x24VDC HA (6DL1131-6BH00-0PH1)

Manual, 05/2017, A5E39265608-AA