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QModMaster is a free Qt-based implementation of a ModBus master application. A graphical user interface allows easy communication with ModBus RTU and TCP slaves. QModMaster also includes a bus monitor for examining all traffic on the bus.

QModMaster is based on libmodbus <http://www.libmodbus.org/> for modbus communication and on QsLog <https://bitbucket.org/codeimproved/qslog> for logging. Supports both Windows and Linux.

For Windows a pre-compiled binary is availiable. It does not require instalation, just unzip and run.
You can download the latest stable version from here <https://sourceforge.net/projects/qmodmaster/files/qModMaster-Win32-exe-0.5.2-3.zip/download>.

Source code is availiable for Windows and Linux for compilation using Qt <http://www.qt.io/download>.

Check out my modbus slave project <http://sourceforge.net/projects/pymodslave/>.

Checkout the following youtube videos :
<https://www.youtube.com/channel/UC3Tk2gE-KGtwOq8WWmb2R7g>

Features

  • ModBus RTU/TCP Master
  • Monitor Bus activity [Raw Data and PDU details]
  • Supports both Windows and Linux

Project Samples

MainWindow BusMonitor RTU Settings TCP Settings Settings Tools

Project Activity

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Categories

Communications, Interface Engines

License

GNU Library or Lesser General Public License version 3.0 (LGPLv3)

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QModMaster Web Site

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User Ratings

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ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
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support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

User Reviews

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  • stefan1313 Posted 2023-07-25
    Simple and effective, as all software should be.
  • xinyu-khan Posted 2022-08-15
    Hi, I have done some porting work on my macos and have getten some progress. Is there any way that i and merge my work to you great code?
    Reply from QModMaster
    Posted 2022-08-15
    Thanks a lot for your help. I've already merged your code to the default branch.
  • philbert Posted 2020-11-23
    Very useful !!
  • csoapy Posted 2020-01-07
    Great! It's better if baudrate is editable.
  • choys Posted 2019-08-10
    Thank you for creating a useful tool. I wish I could copy the text in the Bus Monitor and ADU windows. It is my hope that you can freely copy and paste this content into a text editor.
Read more reviews >

Additional Project Details

Operating Systems

BSD, Linux, Windows

Intended Audience

Advanced End Users, Engineering, Telecommunications Industry

User Interface

Qt

Programming Language

C++

Related Categories

C++ Communications Software, C++ Interface Engines

Registered

2012-02-17
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