To run the software today, engineers utilize emulation environments:
Despite its age, MEDOC 2.4 features a highly efficient workflow designed for text-heavy, mouse-free navigation.
Legacy PLCs like the FX or A-series do not feature USB or Ethernet ports. They rely on RS-422 serial interfaces.
Extracting original logic from a 30-year-old machine before upgrading the hardware.
While MELSEC MEDOC 2.4 is a powerful piece of automation history, using it today requires a bit of technical workaround. melsec medoc 2.4 download
Mitsubishi Electric's MEDOC (MELSEC DOCumentation) software was the primary programming environment for MELSEC Series A, F, and FX PLCs throughout the 1990s and early 2000s. It was originally a DOS-based application, renowned for its speed, stability, and reliability on period-appropriate hardware. Many control engineers who worked with MEDOC have expressed a strong fondness for its straightforward "what you see is what you get" interface.
Locate your adapter under "Ports (COM & LPT)" and note the COM port number (e.g., COM3). Open the DOSBox configuration file ( dosbox.conf ).
If you are searching for a , you are likely facing one of three scenarios:
: Download sections on sites like PLCS.net and MrPLC.com are common sources for historical software and manuals. To run the software today, engineers utilize emulation
MELSEC MEDOC 2.4 is a DOS-based programming and documentation software developed by Mitsubishi Electric. It was designed specifically to configure and program early generations of MELSEC PLCs using Instruction List (IL) and Ladder Logic diagrams. Supported PLC Series
What (e.g., FX0N, A2N) are you trying to program?
To connect to a physical PLC, you must map your computer's USB-to-Serial adapter to a virtual COM port inside DOSBox.
What (e.g., FX0N, A2N) are you targeting? Extracting original logic from a 30-year-old machine before
The only legitimate way to acquire a legal copy of this legacy software is to contact Mitsubishi Electric's authorized distributor for your region. For example, historical records indicate that in Scandinavia, the 32-bit version 2.41 was distributed by . An authorized distributor may still have archived copies for customers supporting legacy machinery. They can provide a legally licensed version, which is the safest and most responsible path.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
is a legacy, DOS-based programming software developed by Mitsubishi Electric. It was designed to program, debug, and monitor early generations of MELSEC programmable logic controllers (PLCs).
