Mitsubishi FX3GE-24MT/ESS Compact Programmable Logic Controller for Small Automation Systems

Product Overview

The Mitsubishi FX3GE-24MT/ESS is a compact, high-performance programmable logic controller from the FX3GE series. This CPU unit integrates 14 digital inputs and 10 transistor outputs (sinking), providing a total of 24 I/O points in a compact housing. The FX3GE series is known for its high processing speed, built-in Ethernet port, and advanced motion control capabilities. It is ideal for small to medium-scale automation applications such as packaging machines, conveyor systems, and small assembly lines. The controller operates on 24 V DC power.

Key Features of FX3GE-24MT/ESS

The CPU has a basic instruction execution time of 0.21 µs and a program memory capacity of 32,000 steps. It includes 14 digital inputs (24 V DC, sink/source) and 10 transistor outputs (24 V DC, 0.5 A per point). The outputs support high-speed pulse output (up to 100 kHz) for stepper or servo positioning. The controller features four 100 kHz high-speed counters (hardware) for counting pulses from encoders. It has a built-in Ethernet port (10BASE-T/100BASE-TX) for programming and communication with HMIs, SCADA, and other devices.

The FX3GE-24MT/ESS includes an RS-422 programming port (compatible with FX series programming software) and can be expanded with up to 4 special function modules (analog, communication, etc.). It also includes a real-time clock with battery backup. The unit has diagnostic LEDs for power, run, error, and I/O status. It operates in temperatures from 0 to 55°C. The controller is certified for CE, UL, and cUL standards. It is DIN rail mountable and has a compact width of 130 mm.

Technical Specifications

• Manufacturer: Mitsubishi Electric

• Part Number: FX3GE-24MT/ESS

• Series: FX3GE

• Product Type: Programmable Logic Controller

• Digital Inputs: 14 (24 V DC, sink/source)

• Digital Outputs: 10 (transistor, sinking, 24 V DC, 0.5 A)

• Program Memory: 32,000 steps

• Instruction Speed: 0.21 µs (basic)

• High-Speed Counters: 4 x 100 kHz

• Pulse Outputs: 2 x 100 kHz

• Built-in Ethernet: Yes (10/100 Mbps)

• Programming Port: RS-422

• Expansion Modules: Up to 4 special modules

• Real-Time Clock: Yes, battery-backed

• Power Supply: 24 V DC (20.4-28.8 V)

• Power Consumption: 20 W (max)

• Operating Temperature: 0 to +55 °C

• Degree of Protection: IP20

• Dimensions (W x H x D): 130 mm x 86 mm x 90 mm

• Certifications: CE, UL, cUL

Functional Description

The FX3GE-24MT/ESS executes the user program cyclically. Inputs are read, logic solved, and outputs updated. The high-speed counters and pulse outputs operate independently of the scan cycle, enabling precise motion control. The Ethernet port can be used for programming via GX Works2 or for Modbus TCP communication. The built-in real-time clock allows scheduling of tasks and logging of event times. The transistor outputs provide fast switching for high-frequency loads.

Applications

The FX3GE-24MT/ESS is used in small packaging machines, conveyor control, automated testing equipment, and small assembly machines requiring a cost-effective, high-performance PLC with Ethernet connectivity.