FAs-40MR-AC excels in versatile I/O interfaces: 22 digital inputs with SINK/SOURCE support, 18 relay-based digital outputs. It lacks analog input/output channels, focusing on digital signals. This design suits industrial applications requiring extensive digital control and offers high flexibility.

  1. High Speed:

    • Executes low-level code directly with a compiled architecture, achieving speeds over 10 times faster than interpreted languages.
  2. Enhanced Security:

    • Ensures robust security with password protection for uploads, downloads, and monitoring. Additional security features include folder, subroutine, and function block passwords.
  3. Flexible and Comprehensive Performance:

    • Pulse and high-speed counting at up to 200KHz.
    • 2 channels for pulse counting, supporting real-time speed and position adjustments.
    • Features interpolation and electronic cam functions.
    • Supports 2-4 channels of high-speed counting and 1-2 channels of AB phase counting.
    • Facilitates multi-stage high-speed counting with target value interruption.
  4. Custom Development:

    • Tailor-made solutions for specific applications, providing fast and high-quality technical support services.
  5. Hardware Cost Advantage:

    • Powered by a 220V supply, covering a comprehensive range of specifications with high cost-effectiveness.
  6. Comprehensive Communication Interfaces:

    • Supports 2 RS485 ports, USB interface communication, free ports, and Modbus communication.
    • Enables networking through RS485 Modbus RTU master-slave mode.
  7. Large Storage Capacity:

    • Accommodates over 20,000 lines of user program storage, eliminating space constraints.
    • Includes a 16KByte non-volatile storage area for power outage protection.
  8. Accurate Clock:

    • Utilizes an external real-time clock chip for precise timekeeping.

Structure and Environment


  • Size: 124.8×97×81 (mm)
  • Weight: 525 (g)

Operating Environment:

  • Temperature: 0°C~55°C (non-freezing)
  • Humidity: 5~95% RH (non-condensing)
  • Vibration Resistance: 10~25Hz (XYZ direction 2G/30 minutes)


  • Power Consumption: 5 (W)
  • Power Supply: AC 100V~240V

Input Parameters:

  • Digital Input: 22 channels
  • Analog Input: None
  • Input Modes: Supports SINK/SOURCE (sourcing/sinking) with internal common point terminals (S/S) and external common-line wiring.
  • Input Signal Voltage: DC24V±20%
  • High-Speed Counting: 2 channels, each up to 200KHz
  • AB Phase Counting: 1 channel, up to 200KHz
  • Measurement Range: Maximum input range
  • Maximum Resolution
  • Analog-to-Digital Conversion Accuracy
  • Comprehensive Measurement Accuracy

Output Parameters:

  • Digital Output: 18 channels
  • Analog Output: None
  • Output Types: Relay
  • Output Mode: Voltage output: 24V
  • Pulse Output: None
  • Output Accuracy
  • Output Range
  • Maximum Inductive Load: 80VA
  • Maximum Resistive Load: Single point 2A, common point 4A
  • Output Load Impedance: Maximum resolution


  • FCC Compatibility: Complies with FCC, Class A
  • Withstand Voltage Test: 1000V AC, 1 minute
  • CE Certification: Complies with EN55032 and EN55035 standards
  • Protection Level: IP30


  • RS232
  • RS485: 2 ports supporting serial communication, baud rate from 4800Bps to 115200Bps
  • RJ45: No
  • Ethernet: No
  • USB Device Port: Supports uploading and online monitoring


  • Upper Software: SamSoar