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.
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
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 |
Also Available
Other *Products
