● Each light-colored terminal block which you install in the IO device starts a new potential
group.
● The power bus is interrupted to the left.
Extending the potential group
● Each dark-colored terminal block passes the supply voltage connected on the light-colored
terminal block to the I/O modules and to the dark terminal block positioned to the right of it.
● The power bus is continuous.
Ending a potential group
● A potential group ends with the dark terminal block, which follows a light terminal block or
a server module in the station configuration.
Power supply of I/O modules of a potential group
● All I/O modules of a potential group have a shared power supply.
You can find additional information on the configuration of the potential group in the system
manual
SIMATIC; Distributed I/O System; ET 200SP HA.
Double-width terminal block (I/O module on terminal block with potential distributor)
Select the "Double-width terminal block" parameter in the hardware properties for the I/O
module.
The parameter only has an effect on the configuration in HW Config.
Parameters
5.3 Explanation of the module/channel parameters
Digital output module DQ 32x24VDC/0.5A HA (6DL1132-6BL00-0PH1)
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Manual, 09/2018, A5E39265993-AA
