The FATEK FBs-14MAR is a compact DIN rail PLC from the manufacturer's FBs-MA series of economic main units. It is designed as a cost-effective yet high-performance controller for small-scale automation tasks. The unit measures just 60x90x80mm and can be mounted on a standard 35mm DIN rail or directly with screws, making it suitable for tight control panel spaces. While it offers a fixed I/O configuration that cannot be expanded, it packs advanced features typically found in larger controllers.

The standout feature of the FBs-14MAR is its exceptional high-speed performance. It is equipped with 0.1ms high-speed timers (four sets of 32-bit HST), which provide a time base ten times finer than the 1ms timers common in competing micro PLCs. Combined with the unit's interrupt function, these timers enable precise speed detection and can even function as a frequency meter, allowing the FBs-14MAR to replace dedicated speed monitoring equipment in many applications. The controller also provides 8 digital inputs, of which 2 points support 100KHz high-speed counting (X0, X1), 2 points support 20KHz (X4, X5), and the remaining 4 points share a total 5KHz counting capability.

On the output side, the FBs-14MAR provides 6 digital output points. The model suffix indicates the output type: "R" for relay outputs, "T" for NPN transistor outputs, and "J" for PNP transistor outputs. Transistor models (T/J) support high-speed pulse outputs with 2 points at 100KHz (Y0, Y2) and 4 points at 20KHz. All models include one built-in communication port that can be configured as either RS232 or USB, and the system can be expanded to support up to three communication ports. The controller supports multiple protocols including the native FATEK protocol and Modbus ASCII/RTU/TCP, ensuring seamless integration with HMIs, SCADA systems, and other industrial devices.

Programming the FBs-14MAR is accomplished using WinProladder, FATEK's dedicated software that supports Ladder Diagram, Instruction List, and Sequential Function Chart (SFC) languages. The software is freely available from the manufacturer's website. The controller operates on either 100-240VAC or 12/24VDC power (model dependent) and is rated for operation in ambient temperatures from 5°C to 55°C. With its combination of ultra-fast timers, flexible output options, and robust communication capabilities, the FBs-14MAR is an ideal choice for small machine control, packaging equipment, and applications where high-speed response is critical but a large I/O count is not required.

Technical Specifications