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Intrinsic Safety Control Drawing A5E00158421-01
ET 200iS
The supply (of electrical energy) of the components is represented in the following drawing.
Notes
1. POWER SUPPLY
The power supply supplies the Interface Module, the I/O electronic modules and the field
circuit. The power supply provides the following supplies:
- Power Bus for the I/O modules and the field circuit
- Electrical circuit for S-Bus and Interface Module
- Electrical circuit for external field bus system
The power supply is specified in the following.
2. INTERFACE MODULE
The Interface Module is the connector between the fieldbus and the internal Bus of the ET
200iS with the I/O modules. The input and output data are processed.
3. I / O MODULES
There are as many as 32 I/O modules arranged in the internal bus system (taking into
account a maximum supply current of 7 A total). You can find the rule to determine the
maximum number of modules in the manual "SIMATIC ET 200iS Distributed I/O Station".
Respective to the module type they enable the activation of the process interface.
This applies to the complete system installed within the hazardous (classified) area. The
maximum current drawn by each module is shown as I
Copyright 2004 by Siemens AG. All Rights Reserved
A5E00158421-01
system in total
on the following pages.
supply
2 of 13
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