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S7-300, Installation and Hardware
EW
A 4NEB 710 6078-02a
Product Overview
The
S7-300 has a modular design. Y
ou can set up your own individual system
by combining components from a comprehensive range of S7-300 modules.
The range of modules includes the following components:
CPUs for various performance ranges
Signal modules for digital and analog input/output(see Module Specifica
-
tions
Reference Manual)
Function modules for technological functions (see the relevant function
module manual for a description).
CP communication processors (see the communication processor manual
for a description)
Load power supply modules for connecting the S7-300 to 120/230 V
AC
power supplies (see
Module Specifications
Reference Manual)
Interface modules for the interconnection of racks in multi-rack installa
-
tions (see
Module Specifications
Reference Manual)
All of the S7-300 modules are contained in housings protected to IP 20, i.e.
they are encapsulated and can be operated without a fan.
In this chapter
, we will introduce you to the most important components that
go to make up an S7-300.
Modular
Design
In this Chapter
1
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