Option Handling On The Profibus Dp; Basic Principles Of Option Handling On Profibus Dp - Siemens SIMATIC ET 200S Operating Instructions Manual

7.2

Option handling on the PROFIBUS DP

7.2.1

Basic principles of option handling on PROFIBUS DP

Principle
Option handling enables you to set up the ET 200S for future expansions (options). Option
handling means that you install, wire, configure, and program the planned maximum
configuration of the ET 200S.
You can choose between two option handling variants, according to your requirements:
● Option handling
● Option handling
The two option handling variants are mutually exclusive.
with
Option handling
The optional electronic modules are initially replaced with inexpensive RESERVE modules
which are then later exchanged with the planned electronic modules.
This means that the ET 200S can be completely prewired ("master cabling") since the
RESERVE module is not connected to the terminal module terminals and therefore not to the
process.
The RESERVE modules for future expansions at the right-hand end of the station do not
have to be mounted. In this case, preparatory installation and wiring are possible but not a
prerequisite.
without
Option handling
With this variant, the use of RESERVE modules is not necessary. The modules are mounted
side-by-side without gaps. Preparatory mounting and wiring are not required for the optional
electronic modules.
Note
Mark the modules in your installation with the slot numbers from your configuration.
Reference
Refer to the "Properties" in the manuals for the ET 200S interface modules to find out which
interface modules support "Options handling".
ET 200S
Operating Instructions, 08/2008, A5E00515771-06
with
RESERVE modules
without
RESERVE modules
RESERVE modules
RESERVE modules
7.2 Option handling on the PROFIBUS DP
Functions
125