...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>.
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Data logger software to interface with the B&B Electronics IO module. You can see more info about these modules here: http://bb-elec.com The 232SDA12 has 11 analog inputs, 4 digital inputs, and 4 digital outputs.
Use the installer here: http://jimroal.com/exe/SDA232/publish.htm