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Automation System S7-400 Hardware and Installation
A5E00850741-01
Product Overview
Overview of the S7-400
The S7-400 is a programmable logic controller. Almost any automation task can be
implemented with a suitable choice of S7-400 components.
S7-400 modules have a block design for swing-mounting in a rack. Expansion
racks are available to extend the system.
In this chapter, we show you the most important components with which you can
assemble an S7-400.
Features of the S7-400
The S7-400 programmable c ontroller combines all the advantages of the previous
system with those of a new system and new software. These are:
• A graded CPU platform
• Upwardly-compatible CPUs
• Enclosed modules of rugged design
• Convenient terminal system for the signal modules
• Compact modules with a high c omponent density
• Optimum communication and networking facilities
• Convenient incorporation of operator interface systems
• Software parameter assignment for all modules
• Extensive choice of slots
• Operation without fans
• Multicomputing in the non-segmented rack
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