Melsec Medoc 2.4 (and the 2.41 patch) is a legacy, DOS-based PLC programming software for older Mitsubishi , FX , and A Series controllers. Because it is discontinued and was originally a commercial product, it is no longer officially distributed by Mitsubishi Electric. Where to Find the Download
In DOSBox:
Which (e.g., Windows 10, Windows 11) is installed on your programming laptop?
: Runs efficiently on minimal processing power.
: Features a strict keyboard-driven menu system typical of MS-DOS applications.
Why download MEDOC v2.4 instead of modern software?
Mitsubishi provides clear upgrade paths that allow you to import older MEDOC files:
: Occasionally, enthusiasts upload ISO images of old industrial software to the Internet Archive ⚠️ Critical Compatibility Notes Operating System : MELSEC MEDOC 2.4 is a 16-bit DOS application
: Runs seamlessly on minimal hardware resources, requiring less than a few megabytes of storage. Finding a Safe MELSEC MEDOC 2.4 Download
Originally built for the , MELSEC MEDOC 2.4 often requires specific considerations to run on modern hardware:
If your goal is simply to extract code from an old PLC, you do not necessarily need MEDOC 2.4. Mitsubishi's newer software suites are backward-compatible.
: MEDOC projects typically utilize .MMP or .MED file formats.
