Siemens SIMATIC S5 ET 200U - Installing One Tier

3-3
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
To install the ET 200U distributed I/O station, you need the following hard-
ware:
 A power supply module
 An ET 20U interface module
 Bus units
 I/O modules
A power supply is necessary only if no 24 V DC line voltage is available.
Begin your installation at the left end of the standard mounting rail. Add
modules from left to right.
This section discusses the following subjects:
 Installing a power supply module and an ET 200U interface module
 Installing bus units
 Installing I/O modules on bus units
You will find notes on dismantling the ET 200U distributed I/O station at the
end of the assembly instructions.
Installing One Tier
Mechanical and Electrical Configuration