...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>
...pyModSlave is based on modbus-tk <http://code.google.com/p/modbus-tk/>, pySerial <https://github.com/pyserial/pyserial> and pyQt5 <http://www.riverbankcomputing.co.uk>.
Check out my modbus master project <http://sourceforge.net/projects/qmodmaster/>.
Checkout the following youtube videos :
Modbus RTU <https://youtu.be/1get1ELKz_A>
Modbus TCP <https://youtu.be/nX_kTQwK2f4>
Session <https://youtu.be/y_9Di7E3y8w>
Log <https://youtu.be/Xcb6sj1uzyY>