4-2
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
DP Siemens is explained in detail in Chapter 1.
An ET 200U interface module with the Order No.
6ES5 318–8MB11
or
6ES5 318–8MB12 (which operates as a “6ES5 318–8MB11” using the
“DP Siemens” bus protocol)
is called ET 200U(DP Siemens).
DP Siemens is the bus protocol developed by Siemens. In cooperation with
the PROFIBUS User Organization, this bus protocol has been extended into
an open and, multi–vendor system. This extended bus protocol has been filed
with the German Electrotechnical Commission (DKE) and it has been passed
as National draft standard DIN 19245, Part 3.
For details on ET 200U(DP Standard), please refer to Chapter 5.
The ET 200U with the Order No. 6ES5 318–8MB12 is able to use both proto-
cols. To set the required bus protocol, use switch 8 on the bank of switches.
The bank of switches is described in Section 4.2.1.
An ET 200U(DP Siemens) can be started up using any version or revision
level of COM ET 200 and the IM 308–B master interface module.
Note
It is always possible to operate the ET 200U(DP Siemens) and
ET 200U(DP Standard) distributed I/O units in parallel on one bus.
What is DP Sie-
mens?
Requirements for
Operation
ET 200U(DP Siemens): Address Assignment,Starting–Up,Diagnosing Faults Using COM ET200