QModBus - a free ModBus master application

About QModBus

QModBus is a free Qt-based implementation of a ModBus master application. A graphical user interface allows easy communication with ModBus slaves over serial line interface. QModBus also includes a bus monitor for examining all traffic on the bus.

QModBus originally has been developed by EDC Electronic Design Chemnitz GmbH and now is publicly available under the terms of the GPLv2.

Download

You can obtain the latest source code at GitHub.

Source tarballs and binary packages for Windows can be downloaded at SourceForge.

Screenshots

Currently there's only one very basic screenshot - it does not show a real ModBus session with actual data.

Technical details

• Supports RTU mode of ModBus protocol
• Parameters of serial port fully configurable
• Bus monitor for examining all traffic on the bus
• Backend based on libmodbus
• Supports both Linux and Windows

More details regarding QModBus can be found on the Sourceforge project page of QModBus.

Contact

You can mail the author by sending a mail to tobias |dot| doerffel |at| gmail |dot| com.