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Configuration Options
Configuration options
There are several different ways in which ET 200X distributed I/O devices can be
connected to PROFIBUS-DP. This chapter provides an overview of the various
configuration options. The restrictions regarding the maximum number of modules
allowed in each configuration are described in a separate section.
Contents of Chapter
Section
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
Modules for the ET 200X
This chapter does not contain any further information about the types of module
that can be used for the ET 200X. Please refer to Chapter 7 for the technical
specifications, pinouts, basic circuit diagrams, etc.
Terminating resistor
There must be a terminating resistor on the first and last node of a PROFIBUS-DP
network with copper conductors (see Section 3.4).
The ET 200X-DESINA FO has a fiber-optic waveguide to transmit bus signals.
This waveguide does not require a terminating resistor.
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
Brief overview of the different basic modules
Feeding and looping through the supply voltage for the electronic
components/sensors and PROFIBUS-DP
Disconnecting the ET 200X from the bus and looping through the
supply voltage/PROFIBUS-DP (not ET 200X-DESINA/
ET 200X-ECOFAST)
Connecting the load supply voltage to the motor starters, frequency
converters and looping it through
Connecting and looping through the load voltage
Use of the SITOP power power supply unit
Connecting and looping through load voltages and PROFIBUS-DP to
ET 200X-DESINA / ET 200X-ECOFAST
Restrictions on the number of modules
Maximum configuration and configuration options with power modules
Subject
2
Page
2-2
2-3
2-6
2-8
2-10
2-11
2-12
2-13
2-16
2-1
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