2-2
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
2.1
Design of the ET 200U Interface Module
“RUN” LED (green)
This LED lights up when the ET 200U interface module is in the
RUN mode (STOP/RUN switch in the “RUN” position and power
supply switched on)
“BUS–FAULT” LED (red)
“IM–FAULT” LED (red)
STOP/RUN switch
SINEC L2–DP interface
Terminals for 24 V supply and functional earth
Switch for setting the station number and
S
the baud rate of the I/O bus (... 8MB11) (
Section 4.2.1)
or
S
DP Siemens / DP Standard characteristics (... 8MB12)
(
Section 5.2.1) or
S
Switching from FMS to DP Standard bus parameters and vice
versa
(... 8MC11) (
Section 6.2).
Field for station number labels
Plug connector for connection of a bus unit
The LED indications are described in detail in the following Sections:
S
ET 200U(DP Standard) in Section 4.3.1,
S
ET 200U(DP Standard) in Section 5.3.1,
S
ET 200U(DP Standard/FMS) in Section 6.4.
Technical Description