5-2
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
DP Standard is explained in detail in Chapter 1.
An ET 200U interface module with the Order No.
6ES5 318–8MB12
or
an ET 200U interface module with the Order No.
6ES5 318–8MC11,
using the “DP–Standard” bus protocol is called ET 200U(DP Standard).
DP Standard refers to the PROFIBUS–DP (DIN 19245, Part 3) draft standard.
The bank of switches is used to select the bus protocol according to DP Stan-
dard. The bank of switches is described in Section 5.2.1.
An ET 200U(DP Standard) can be started up using
COM ET 200 (version 4.0) and
the IM 308–B master interface module, version 5 (printed on the module)
or as from software version 4.0 (can be read out using COM ET 200).
An ET 200U station with Order No. 6ES5 318–8MB12 can be operated using
previous versions of COM ET 200 and the IM 308–B. For this purpose,
switch 8 must be set to “DP Siemens”.
The ET 200U station with Order No. 6ES5 318–8MB12 is then operated as
an ET 200U(DP Siemens) station. For details on ET 200U(DP Siemens),
please refer to Chapter 4.
Note
It is always possible to operate the ET 200U(DP Siemens) und ET 200U(DP
Standard) distributed I/O units in parallel on one bus.
What is DP Stan-
dard?
Requirements for
Operation
ET 200U(DP Standard): Address Assignm.,Starting–Up, Diagnosing Faults Using COM ET 200