Key Specifications
I/O Configuration

Input Points: 8 (24V DC, sink/source)

Output Points: 8 (transistor, sink type)

Output Current: 0.5A per point

Performance

Program Capacity: 64K steps

Processing Speed: 0.065μs per basic instruction

Built-in Memory: 32K RAM (battery-backed)

Special Features

High-speed Counters: 6 channels (single-phase 100kHz)

Pulse Output: 3 axes (100kHz max.)

Communication Ports:

Built-in RS-422 (programming port)

Optional communication adapters (USB, Ethernet)

Expansion Capability

Supports up to 16 expansion modules (I/O, analog, special function)

Compatible with FX Series extension blocks

Power Supply

Input Voltage: 100-240V AC (50/60Hz)

Power Consumption: 30W (max.)

Technical Specifications
Operating Temperature: -10°C to +55°C

Storage Temperature: -25°C to +75°C

Vibration Resistance: 10-57Hz (0.075mm amplitude)

Shock Resistance: 147m/s² (3 times in X/Y/Z directions)

Protection Class: IP20 (indoor use)

Programming & Communication
Programming Software: GX Works2 (recommended)

Supported Protocols: MODBUS RTU, N:N Network

Optional Communication: FX3U-USB-BD (USB), FX3U-ENET-L (Ethernet)