Industry automation over 20 year

[email protected]

24/7 Customer Support

Mon - Fri: 8:30 - 21:00

Online Store always open

** COVID-19 ** AoteWell Automation are still Working and shipping worldwide

SIEMENS S7-400 SIMATIC S7-400 PLC Programmable Logic Controller

he 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 that focuses on process engineering and is characterized primarily by its modularity and performance reserves.

  • 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 performance-graded 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 of an S7-400. For example, complex tasks in technologies such as open-loop control, computing or communication can be split and assigned to different CPUs. And every CPU can be assigned its own local I/O.
  • Modularity:
    The powerful backplane bus of the S7-400 and the communication interfaces that can be connected direct to the CPU enable high-performance operation of a host of communication lines. This permits, for example, the division into one communications line for HMI and programming tasks, one line for high-performance and equidistant motion control components, and one “normal” I/O fieldbus. Additionally required connections to MES/ERP systems or the Internet can also be implemented.
  • Engineering and diagnostics:
    The S7-400 is configured and programmed extremely efficiently together with the SIMATIC Engineering Tools particularly in the case of extensive automation solutions with a high engineering component. For this purpose, high-level languages such as SCL and graphical engineering tools for sequential controls, state graphs and technology-oriented diagrams are available, for example.
Series Name: SIMATIC S7-400
Share on facebook
Share on google
Share on twitter
Share on linkedin
Product Keywords: SIMATIC S7-400

SIEMENS S7-400 | SIMATIC S7-400 PLC Programmable Logic Controller

The Power Controller for system solutions in the manufacturing and process industries
Within the Controller family, the SIMATIC S7-400 is designed for system solutions in the manufacturing and process automation.
The product range comprises 9 Standard CPUs, 2 failsafe and 2 high available CPUs.

The following features make the SIMATIC S7-400 the most powerful Simatic PLC:
The S7-400 is especially suitable for data-intensive tasks in the process industry. High processing speeds and deterministic response times guarantee short machine cycle times on highspeed machines in the manufacturing industry. The highspeed backplane bus of S7-400 ensures efficient linking of central I/O modules.
The S7-400 is used preferably to coordinate overall plants and to control lower-level communications lines with slave stations; this is guaranteed by the high communication power and the integral interfaces.
The power of the S7-400 is scalable thanks to a graded range of CPUs; the capacity for I/O is almost unlimited.
The power reserves of the CPUs enable new functions to be integrated without further hardware investment, e.g. processing of quality data, user-friendly diagnosis, integration into higher-level MES solutions or high-speed communication via bus systems.
The S7-400 can be structured in a modular way without any slot rules; there is a widely varied range of modules available both for centralized configurations and distributed structures.
The configuration of the distribuded I/O of the S7-400 can be modified during operation. In addition signal modules can be removed and inserted while live (hot swapping). This makes it very easy to expand the system or replace modules in the event of a fault.
The storage of the complete project data including symbols and comments on the CPU simplifies service and maintenance calls
Safety technology and standard automation can be integrated into an S7-400 controller; the plant availability can be increased by the redundant set-up of the S7-400.
Many of the S7-400 components are also available in a SIPLUS version for external environmental conditions, e.g. extended temperature range (-25?+60°C) and for use where there is aggressive atmosphere/condensation.

Order no. StandardOrder no. SIPLUS
Interface modules
PROFIBUS module  IF 964 DP6ES7964-2AA04-0AB06AG1964-2AA04-2AB0
Expansion modules digital
SM 421 32DI6ES7421-1BL01-0AA06AG1421-1BL01-2AA0
SM 422 32DO6ES7422-1BL00-0AA06AG1422-1BL00-2AA0
UR1 redundant6ES7400-1TA01-0AA06AG1400-1TA01-2AA0
Connection with IM 460 / IM461
IM 460-0 transmitter6ES7460-0AA01-0AB06AG1460-0AA01-4AB0
IM 461-0  receiver6ES7461-0AA01-0AA06AG1461-0AA01-4AA0
Power supply
PS 405
Input: DC 24/48/60V Output: DC 5V/24V – 10A
Extraordinary medial load (conformal coating)
Order no. StandardOrder no. SIPLUS
CPU 414-4H fault-tolerant6ES7414-4HJ04-0AB06AG1414-4HJ04-4AB0
CPU 416-3 PN/DP6ES7416-3ER05-0AB06AG1416-3ER05-4AB0
CPU 416-36ES7416-3XR05-0AB06AG1416-3XR05-4AB0
CPU 417-46ES7417-4XT05-0AB06AG1417-4XT05-4AB0
CPU 417-4H
Sync Submodules for coupling CPU 41x-4H
Sync submodul fault-tolerant6ES7960-1AA00-0XA06AG1960-1AA00-4XA0
Sync submodul up to 10m  fault-tolerant6ES7960-1AA04-0XA06AG1960-1AA04-4XA0
Expansion modules analog
SM 431 16DI6ES7431-0HH00-0AB06AG1431-0HH00-4AB0
SM 432 8AO6ES7432-1HF00-0AB06AG1432-1HF00-4AB0
Function modules
FM 450-16ES7450-1AP00-0AE06AG1450-1AP00-4AE0
Communication modules
CP 443-56GK7443-5DX04-0XE06AG1443-5DX04-4XE0
CP 443-16GK7443-1EX11-0XE06AG1443-1EX11-4XE0
UR2-H with 2×9 slots – fault-tolerant6ES7400-2JA00-0AA06AG1400-2JA00-4AA0
UR2-H with 2×9 slots – fault-tolerant, alu6ES7400-2JA10-0AA06AG1400-2JA10-4AA0
Power supplies
PS 407 Input: UC 120/230V Output: DC 5V/24V – 10A6ES7407-0KA02-0AA06AG1407-0KA02-4AA0
PS 407
Input: UC 120/230V Output: DC 5V/24V – 10A
Order no. StandardOrder no. SIPLUS
Circuit modification
Order no. StandardOrder no. SIPLUS
Expansion modules analog
SM 431 BEG AI6x14 REF6ES7431-1KF20-0AB06AG1431-1KF20-4AY0

All the Siemens S7-400 Modules we sold, are original one! – 100% Brand New !

Contact us now for special price!

More Version on S7-400

Siemens s7-400 PLC PLC, SIMATIC S7-400 PLC Siemens s7-400 PLC PLC, SIMATIC S7-400 PLC


Technical specifications

General technical data

Degree of protection


Ambient temperature

0 to 60 °C

Relative humidity

5 to 95%, no condensation

Atmospheric pressure

1080 to 795 hPa (corresponds to an altitude of -1000 m to +2,000 m)

Electromagnetic compatibility

  • Interference immunity

According to EN 61000-6-2

  • Emitted interference

According to EN 61000-6-4

Mechanical load

  • Vibration, test according to / tested with

IEC 60068-2-6 (sine)

10 to 58 Hz; constant amplitude 0.075 mm;
58 to 500 Hz; constant acceleration 1 g; duration of oscillation: 10 frequency sweeps per axis in each direction of the three mutually perpendicular axes

  • Shock, test according to / tested with

IEC 60068-2-27
Type of shock: Half-sine;
strength of the shock 10 g (peak value), duration 6 ms
direction of shock: 100 shocks in each of the 3 mutually perpendicular axes.

All the Siemens S7-400 Modules we sold, are original one! – 100% Brand New !

Ordering data

The ordering data of the components for the S7-400H can be found with the relevant modules under “S7-400/S7-400H/S7-400F/FH”.


The SIMATIC S7-400F/FH fail-safe automation system is used in plants with increased safety requirements. It controls processes where immediate shutdown presents no danger to personnel or the environment. The S7-400F/FH has two basic designs:

  • S7-400F:
    Fail-safe automation system. In the event of faults in the control system, the production process is brought to a safe state and interrupted.
  • S7-400FH:
    Fail-safe and high-availability automation system. In the event of a fault in the control system, redundant control sections intervene and continue control of the production process.

The additional use of standard modules makes it possible to establish a fully integrated control system for a plant where non-safety related tasks and safety-related tasks co-exist. The overall plant is configured and programmed with the same standard tools.




The SIMATIC S7-400 is the power PLC for the mid to high-end performance ranges.

The modular and fan-free design, high level of expandability, extensive communication and networking options, simple implementation of distributed structures, and user-friendly handling make the SIMATIC S7-400 the ideal solution even for the most demanding tasks in the mid to high-end performance ranges.

Application areas of the SIMATIC S7-400 include:

  • Automotive industry, e.g. assembly lines
  • Mechanical equipment manufacture, including special mechanical equipment manufacture
  • Warehousing technology
  • Steel industry
  • Building management systems
  • Power generation and distribution
  • Paper and printing industry
  • Woodworking
  • Food and beverages industry
  • Process engineering, e.g. water and wastewater utilities
  • Chemicals industry and petrochemicals
  • Instrumentation and control
  • Packaging machinery
  • Pharmaceutical industry

Several performance-graded CPU classes and a comprehensive range of modules with a host of user-friendly functions allow users to perform their automation tasks individually.

In the case of task expansions, the controller can be expanded at any time without significant cost by means of additional modules.

The SIMATIC S7-400 is universal in use:

  • Maximum suitability for industry thanks to high electromagnetic compatibility and high resistance to shock and vibration.
  • Modules can be connected and disconnected while power switched on.

In many areas of automation technology, demands are increasing all the time with regard to the availability and thus the fail-safety of the automation systems. There are areas where a plant standstill can result in extremely high costs. Here, only redundant systems can do justice to the availability requirements.

The fault-tolerant SIMATIC S7-400H meets these requirements. It continues to operate even when parts of the controller have failed due to one or more faults. The availability achieved in this way makes the SIMATIC S7-400H especially suitable for the following application areas:

  • Processes with high restart costs after a controller failure (generally in the process industry).
  • Processes with expensive standstill times
  • Processes involving valuable materials, e.g. in the pharmaceuticals industry.
  • Unsupervised applications
  • Applications with reduced maintenance personnel

SIMATIC S7-400 Product Manual


Please upload your inquiry list


Buy SIMATIC S7-400, SIEMENS PLC, SIEMENS S7-400, 100% original and Made in Germany. Best price and Big stock.

Inquiry about this SIMATIC S7-400 series items

Inquiry about SIMATIC S7-400 Items

Share on facebook
Share on google
Share on twitter
Share on whatsapp
Share on skype