Solution
Currently, there is no way to use DataPlugin alone outside DIAdem, DataFinder or LabVIEW.
The workaround that you can explore is use LabVIEW to build a library (DLL) to do the conversion and use this library from your C++ project to read the binary file, you can refer to
Generate a Shared Library From a LabVIEW Project to get started. You might need to install the LabVIEW runtime engine to use the LabVIEW DLL.