Fatek B1-L2A2D Analog I/O Module – 2 Inputs / 2 Outputs (12-bit)

Fatek B1-L2A2D Analog I/O Expansion Module is a versatile “combo” expansion unit designed to enhance the capabilities of the B1 and B1z PLC series. By integrating 2 channels of analog input and 2 channels of analog output into a single compact housing, this module offers a space-saving solution for applications requiring both sensor monitoring and actuator control.

Description

In industrial automation, efficiency often depends on the precise handling of analog signals. The Fatek B1-L2A2D Analog I/O Expansion Module bridges the gap between digital logic and the continuous variables of the physical world. It allows your Fatek B1 PLC to interface directly with devices like pressure transmitters, flow meters, and variable frequency drives (VFDs).

This module features a highly flexible design where signal types (Voltage or Current) can be selected via field wiring, accommodating ranges of 0~10V or 0~20mA. The 12-bit resolution (coded in 14 bits) ensures that even minute changes in the process variable are detected and acted upon, with conversion values updated during every scan cycle for real-time responsiveness. For added safety, the module automatically forces output signals to zero if not serviced by the CPU for 0.5 seconds, preventing runaway conditions in critical processes.

Brand

Fatek Automation

Fatek

FATEK Automation Corp. was established in 1992 in Taiwan by a group of engineers engaged in PLC design and development for many years. Since its establishment, FATEK has strived for R&D in order to provide high-quality, high-function and user-friendly automatic control products. The product line focuses on PLC, HMI, IoT solutions, SCADA application software, OPC Server and power supply, etc. With our endeavors for decades, we are now well-recognized in the industry for high quality and reliability with the brand name of "FATEK." While maintaining stability and dependability, FATEK also continuously engages in R&D and innovation to expand a broader application field, striving to becoming a professional, reliable and holistic solution provider.

Specifications

Features2 channels, 12-bit analog input + 2 channels, 12-bit analog output combo analog module (0~10V or 0~20mA)
Wiring mechanism3.81 mm European Detachable terminal block

Features

  • Combo I/O Architecture: Combines 2 Analog Inputs and 2 Analog Outputs in one module to save DIN rail space.
  • Left-Side Expansion: Mounts to the left side of the B1/B1z main unit for seamless integration.
  • High Resolution: Delivers 12-bit resolution (0~16383 raw value) for precise signal conversion.
  • Selectable Signal Types: Supports both Voltage (0~10V) and Current (0~20mA) modes.
  • Safety Output Zeroing: Automatically resets outputs to 0V/0mA if CPU communication is lost for >0.5s.
  • Real-Time Performance: A/D and D/A conversion values are updated every scan cycle.

Applications

Fatek B1-L2A2D is widely used in compact automation systems requiring mixed analog signals, such as:

  • PID Process Control: Managing temperature or pressure loops where both feedback (Input) and control variable (Output) are needed.
  • VFD Speed Control: Sending 0-10V speed references to inverters while monitoring motor load current.
  • Positioning Systems: Controlling proportional valves in hydraulic or pneumatic systems.
  • Environmental Monitoring: Reading humidity/level sensors and outputting signals to chart recorders or displays.