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JCOM1939 Monitor Pro-X Program Versions and Update

We needed to split the development of the Windows software and create a new, extended version that takes advantage of the more powerful features of the JCOM.J1939.USB-X and JCOM.J1939.REC boards.

The new version is called JCOM1939 Monitor Pro-X (“X” for extended).

JCOM1939 Monitor Pro-X ScreenThe jCOM1939 Monitor Pro-X Software is the perfect tool to monitor, analyze, and simulate SAE J1939 data traffic. The software utilizes our JCOM.J1939.USB-X gateway or our JCOM.J1939.REC data logger.

A comprehensive and easy-to-use, easy-to-understand Windows software displays not only SAE J1939 data traffic; it also allows to scan the network, simulate an ECU (incl. full node address negotiation features), and respond to data request messages.

The communication protocol between the gateway and the host system (PC, Embedded System, Android System, etc.) is well documented, and we provide C/C# source code to read and write CAN data frames.


jCOM1939 Monitor Pro-X – Check Your Current Version

Start your version of the jCOM1939 Monitor and check the version number in the window’s caption (top bar).

JCOM1939 Monitor Pro-X Program Version

If your version is older than the one as shown below, we strongly recommend to download and install the newest version.

jCOM1939 Monitor Pro-X – Download

The jCOM1939 Monitor Pro-X for Windows is free software; you can redistribute it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License or (at your option) any later version. The program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. With downloading these programs, you confirm that you have read and agree with these terms and conditions.

The newest version is
V 4.01.00jCOM1939 Monitor Pro-X - SAE J1939 Monitor, Analyzer, And ECU Simulator - Download

After downloading the installation program, run the .exe program and follow the instructions on the screen to install the program. This is a standard installation program for Windows; there are no special actions or settings necessary.

Version History

  • V 4.01.00

    • First release
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