SIMATIC S7-400 Controller

The S7-400 is the most powerful PLC in the family of SIMATIC controllers. It enables successful automation solutions with Totally Integrated Automation (TIA). The S7-400 is an automation platform for system solutions in production and process engineering,
and it is characterized primarily by its modularity and performance reserves.

S7-400Image result for S7-400
• The power PLC for the mid to high-end performance ranges.
• The solution for even the most demanding tasks.
• With a comprehensive range of modules and performancegraded CPUs for optimal adaptation to the automation task.
• Flexible in use through simple implementation of distributed structures.
• User-friendly connections.
• Optimal communication and networking options.
• User-friendly handling and uncomplicated design without a fan.
• Can be expanded without problems when the tasks increase.
• Multicomputing:
Simultaneous operation of several CPUs in one S7-400 central controller.
Multicomputing distributes the overall performance power of an S7-400. For example, complex tasks can be divided into technologies such as open-loop control, computing or
communication, and assigned to different CPUs. And every CPU can be assigned its own local I/O.

S7-400HImage result for S7-400H
• Fault-tolerant automation system with redundant design.
• For applications with high fail-safety requirements.
Processes with high restart costs, expensive downtimes, little supervision, and few maintenance options.
• Redundant central functions.
• Increases availability of I/O: switched I/O configuration.
• Also possible to use I/Os with standard availability: singlesided configuration.
• Hot stand-by: automatic reaction-free switching to the standby unit in the event of a fault.
• Configuration with two separate or one divided central rack.
• Connection of switched I/O via redundant PROFIBUS DP or via system reduntant PROFINET IO.

S7-400F/FHImage result for S7-400F/FH
• Failsafe automation system for plants with increased safety requirements
• Complies with safety requirements to SIL 3 in accordance with IEC 61508, AK6 in accordance with DIN V 19250 and Cat. 4 in accordance with EN 954-1
• If required, also fault tolerant through redundant design
• Without additional wiring of the safety-related I/O
• Safety-relevant communication via PROFIBUS DP with PROFIsafe profile
• Based on S7-400H and distributed IOs ET 200M with fail-safe modules
• Standard modules for non-safety-related applications can also be used in the automation system
• Isolation module for joint use of fail-safe and standard modules in safety mode in one ET 200M

Features of the S7-400
The S7-400 programmable controller 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 component 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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SIMATIC S7-400, analog input SM 431, non-isolated 16 AI, resolution 13 bit, +/-10 V, +/-20 mA, 4 - 20 mA 20 ms conversion time
6ES7955-2AL00-0AA0
6ES7400-1JA00-0AA0