Modbus TCP,RTU Master Software.
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 3.1.0-1 <http://www.libmodbus.org/>. Supports both Windows and Linux.
For Windows a pre-compiled binary is availiable. It does not require instalation, just unzip and run.
Source code is availiable for Windows and Linux for compilation using Qt <http://qt.nokia.com/products/> (tested with Qt 4.7.4).
Check out my modbus slave project <http://sourceforge.net/projects/pymodslave/>.
- ModBus RTU/TCP Master
- Monitor Bus activity [Raw Data and PDU details]
- Supports both Windows and Linux
Thanks for updates ;)
Love that its free
great program qmodmaster, thanks.
When writing to Registers with function 6, it always writes 0xff 0xff as data values, no matter what was entered in the field. And the Bus monitor shows that (RS232).