Siemens ET 200S Manual page 110

Wiring and Fitting
5.4.4 Wiring Terminal Modules
Features
The ET 200S distributed I/O system comprises terminal modules for power
modules and electronic modules:
S At the terminal modules for the power modules you connect the supply/load
voltage for the respective potential group.
S Terminal modules for electronic modules connect the ET 200S with the process.
S At the terminal modules for electronic modules you can connect cable shields
by means of a shield contact.
Requirements
S You must wire the terminal modules with the supply/load voltage switched off at
the power module and the load voltage switched off at the electronic module.
S Adhere to the wiring rules.
Tool Required
3-mm screwdriver
5-14
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07