The S7-400 series PLC is Siemens’ high-performance control system, purpose-built for complex and large-scale automation tasks across diverse industrial sectors. With exceptional processing power, modular expandability, and robust communication capabilities, the S7-400 series is the ideal choice for large-scale automation systems. Its high reliability and redundant design ensure safety and stability, making it a trusted solution in critical industries such as power, chemical, and metallurgy.
By choosing the S7-400 series PLC, you gain the most dependable automation control for demanding industrial environments and multi-task processing. Whether for factory production lines, energy systems, or large infrastructure projects, the S7-400 is your foundation for achieving superior efficiency and intelligent control!
We specialize in providing the core components of the Siemens S7-400 PLC series, including CPU modules, I/O modules, and communication modules to meet the high-performance demands of complex and large-scale automation systems. With exceptional processing power and diverse connectivity options, the S7-400 series PLC is widely used in industries such as energy, chemicals, and metallurgy, offering robust support for challenging industrial environments. Here are the key models we supply:
CPU Modules – Core Control for Large Systems
Our selection of S7-400 CPU modules offers powerful multitasking and communication capabilities, ideal for automation control tasks that require high reliability:
CPU 412-1: A reliable base model for medium-sized systems, suitable for basic industrial automation.
CPU 414-3 DP: Supports PROFIBUS DP communication and enhanced processing power, suited for complex mid-to-large automation tasks.
CPU 416-2: Delivers outstanding performance and memory capacity for large systems, supporting multi-tiered control requirements.
CPU 417-4: The highest-performing model, designed for highly complex and demanding automation systems, with extensive interfaces and fast response.
I/O Modules – Solid Bridge for Data Acquisition and Execution
Our extensive range of I/O modules meets diverse industrial signal acquisition and control needs. Here are the main module types and popular models:
Digital Input Modules
- SM 421 DI 32x24VDC: 32-channel digital input, stable and reliable for large-scale signal acquisition.
- SM 421 DI 64x24VDC: High-density 64-channel input module, ideal for systems requiring numerous inputs.
Digital Output Modules
- SM 422 DO 16x24VDC/0.5A: 16-channel 24V digital output, suitable for controlling various industrial equipment.
- SM 422 DO 32x24VDC/0.5A: 32-channel digital output, providing stable signal output for efficient system operation.
Analog Input Modules
- SM 431 AI 8×16 Bit: 8-channel high-precision analog input, supports voltage and current signals, ideal for complex measurement requirements.
- SM 431 AI 16×16 Bit: 16-channel analog input module for large systems requiring multi-signal acquisition.
Analog Output Modules
- SM 432 AO 8×12 Bit: 8-channel analog output module, suitable for voltage and current control applications, ensuring precise output.
- SM 432 AO 16×12 Bit: 16-channel analog output module, meeting a range of signal output needs.
Thermocouple Input Modules
SM 431 AI 4xRTD: 4-channel RTD input module designed for resistance temperature detectors, suitable for accurate temperature monitoring.
SM 431 AI 8xTC: 8-channel thermocouple input supporting various thermocouple types, ideal for precise temperature control.
Communication Modules – Reliable Bridge for Multi-System Integration
Our communication modules facilitate efficient data exchange between your S7-400 system and other devices or control systems, supporting various industrial protocols to meet complex communication needs:
CP 441-2 (Serial Communication Module): Supports serial communication, for connecting specialized equipment and non-standard communication needs.
CP 443-1 (Industrial Ethernet Communication Module): Provides Ethernet communication for rapid multi-device interconnection.
CP 443-5 Extended (PROFIBUS Communication Module): Supports PROFIBUS networking, ideal for distributed control.
Additional Types – Comprehensive System Support
Beyond core CPU, I/O, and communication modules, we offer supporting products such as power supply modules, connection systems, and mounting rails to ensure efficient installation and operation of your S7-400 system. Power supply modules provide stable power, connection systems enable fast, reliable module interconnections, and mounting rails simplify layout, ensuring a tidy and stable system structure.
Our one-stop S7-400 series PLC solution provides complete support from core control to accessories, making it easy to build a high-performance, stable large-scale industrial automation system. Choose our products to experience the exceptional performance and reliable quality of the S7-400!
