The FX5U-80MT/ESS is a CPU module in the Mitsubishi MELSEC iQ-F family. It brings 40 digital inputs (24 V DC, configurable sink/source) and 40 transistor sourcing outputs in a single unit – enough for a mid-sized machine cell without an expansion rack. The 100-240 V AC power supply covers global line voltages, so no separate PSU module is needed for the CPU itself. Inputs are flexible: you can wire them sink or source, which simplifies panel wiring when mixing sensor types. A PNP prox? Wire source. NPN? Switch to sink. Same terminal block. That matters when you’re retrofitting a panel that was never laid out for a single wiring convention.
Mitsubishi FX5U-80MT/ESS CPU Module, 40 I/O, Transistor Outp
MPNFX5U-80MT/ESS
Mitsubishi MELSEC iQ-F FX5U-80MT/ESS PLC CPU module, 40 inputs 24 V DC sink/source, 40 transistor outputs, 100-240 V AC power.
$1,931.00 – $2,129.28Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 1.2 Kg |
| Parameter | Value |
|---|---|
| Input | 40 points, 24 V DC, Sink/source |
| Output | 40 points, Transistor/source |
| Power supply | 100 to 240 V AC 50/60 Hz |
| Product type | FX5U CPU Modules |
Product details
Frequently asked questions
What is the difference between FX5U-80MT/ESS and FX5U-80MT/DS?
Marketing-grade ESS/DS variants hide input type and power differences that affect spare interchangeability.
Is the Mitsubishi FX5U-80MT/ESS still in production or EOL, and what is the recommended replacement?
Buyers and MRO teams must avoid line-down risk by knowing lifecycle status and pin-compatible successors before stocking or quoting.
Where can an authorized distributor with traceable stock and warranty be found for the FX5U-80MT/ESS?
Counterfeit risk on allocated Mitsubishi CPUs makes authorized, documented sourcing a hard requirement for most plant buyers.
What are the wiring and terminal-block details for the FX5U-80MT/ESS?
Panel builders need correct pinout, torque, and relay ratings to avoid mis-wiring and rejected builds.
Which GX Works3 firmware version is compatible with the FX5U-80MT/ESS?
Controls engineers hit silent project faults when GX Works3 revision does not match CPU firmware, blocking commissioning.
What is a form-fit-function replacement for an obsolete FX5U-80MT/ESS?
Maintenance techs need a drop-in equivalent so firmware, I/O mapping, and program remain intact during emergency replacement.
MPN
FX5U-80MT/ESS