This model has 42 variants.
Effective Sept 11th, 2025 Mitsubishi has added a 9.75% surcharge to this product. The surcharge will appear as a separate line item on each sales order.

Overview

Features

  • I/O points: up to 128
    • 384 total when combined local and CC-Link or AnyWireASLINK remote I/O
  • Address range: 256 max direct addressing and 256 max remote I/O
  • Program memory: 64,000 steps RAM (internal)
    • exchangeable FLROM memory cassette
  • Instruction time:
    • Basic: 0.21μs/instruction
    • Applied: 0.5μs to several hundred μs/instruction
  • Number of instructions:
    • 29 sequence instructions,
    • 2 step ladder instructions,
    • 218 applied instructions
  • Program protection: 8 or 16-character keyword protection
    • 3 protection levels each
  • Auxiliary relays: 7,680 points
  • Timers: 512 points
  • Counters: 235 points
  • Data registers: 8,000 points
  • Power supply: 24VDC or 100 to 240VAC
  • Certifications: EN, UL/cUL

Description

The Mitsubishi MELSEC-F FX3U Series Programmable Logic Controller is a high-performing compact PLC with high-speed processing, expandability, and advanced positioning capabilities. This dual system-bus design provides exceptional flexibility for a wide range of industrial applications, with support for up to 384 controllable local and networked I/O points via CC-Link, along with 64,000 steps of built-in program memory and Flash Memory Cassettes for enhanced functionality.

The FX3UC variant offers the powerful functionality of the FX3U in an ultra-compact form, reducing the physical footprint to 28mm in width. This slim-fit design makes it ideal for space-conscious and modular applications where cabinet space is limited. These controllers provide a comprehensive solution for demanding industrial networking, analog, and positioning tasks.

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