Sorry, I don't have a post for a Fadal but there is one included with Surfcam that has G84.2. Try this:
In Windows, go to Start, All programs, Surfcam (whichever version you have) then Surfcam tools, then Post Menu Wizard, then add post. There is a Fadal with tap that you can choose. Now when you post a program, that should be one of the options when you choose to post a program. Of course, some of the other details might be changed but you will have to check it with a good working program that is running on the Fadal.