Siemens S7 400 PLC

SIMATIC S7-400 Series

Siemens S7-400 PLC

The SIMATIC S7-400 is the most powerful Automation System within SIMATIC — a high-performance process controller with superb communication capability and integrated interfaces.

Ideal for the coordination of entire systems, the graded range of CPUs enables scalable performance. Process controller signal modules can be inserted and removed while the system is live (hot swapping).

Hot Swapping Capability
Signal modules can be inserted and removed while the system is live — making it very easy to expand the system or replace modules without production stops.

Module Range

Compact CPUs
Stan alone CPUs
Digital Input / Output Modules
Analog Input / Output Modules
Communication Modules
Special Function Modules

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Why S7-400?

The Powerhouse of SIMATIC

Virtually Unlimited I/O

The capacity for I/O periphery is virtually unlimited — perfect for large-scale process control and complete system coordination.

Live Hot Swapping

Signal modules can be inserted and removed while the system is running — expand or replace modules without interrupting production.

Scalable CPU Range

Graded range of CPUs enables scalable performance to match the exact demands of your automation task — from basic to extremely complex.

Technical Data

S7-400 Specifications

CPU Performance

Controller Family	SIMATIC S7-400
CPU Range	CPU 412 to CPU 417
Memory	Up to 30 MB work memory
Processing Speed	0.1 µs per bit instruction
Communication	MPI, PROFIBUS, PROFINET, Industrial Ethernet

System Properties

Supply Voltage	24 VDC / 120–230 VAC
Hot Swapping	Yes — live module change
I/O Range	Virtually unlimited via distributed I/O
Redundancy	Available via H-System
PG/PC Interface	MPI / PROFIBUS / Ethernet

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