Well, you'll need to learn LabVIEW -- it's not nearly as bad as learning C++, Matlab, or Python, but it is "different" and you should expect to spend some time (preferably with a teacher/tutor/mentor/LabVIEW Guru assisting you).
It's not clear from your description what you really want to do. The title of your post mentions a "parallel robot" (I don't know what this means) and also NI RIO (which is not mentioned in your question, but I suppose is the reason you mention LabVIEW -- if you need to learn about the RIO, then add a few more weeks/months of study, and having local guidance will be extremely helpful).
Bob Schor
