SIMATIC S7 - an Overview
1-4
Automation System S7-400 Configuration and Use
A5E0044271 1-02
1.2 What are the features of the S7- 400?
Optimized performance for every area of application
This means the following:
• A tiered CPU landscape
• Upward compatible CPUs
• Quick response times and large performance reserves
• Large user memory
• Simultaneous operation of multiple CPUs in a single automation system
Almost unlimited expansion potential
This means the following:
• Configuration of up to 396 modules in a maximum of 22 racks
• Simple assembly
• Compact modules with high component density
• Operation without fans
• Robust design
• No slot rules for signal and function modules
• Recessed and covered connectors for plugs
• Hot pulling and plugging of the modules
Integrated functionality
This means the following:
• Integrated MPI/DP interface
• Integrated PROFIBUS DP interface
• Integrated system functions, including communication
System-wide compatibility
This means the following:
• Uniform device design, identical display and operator control components
• Uniform programming software, STEP 7
• Uniform configuration, parameter assignment and data storage for all modules
• Uniform programming, operator control and monitoring devices
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