How can I cite an company website using IEEE style? I would like to use some information about the MathScript RT Module RT module, found at the link: http://www.ni.com/labview/mathscript/

This might not be standard so I cannot find any example online. Any suggestion will be appreciated.
Software available online should be cited as a website, following the description given in the various IEEE style guides.  The easiest way to do this is typically with a citation management system like BibTeX.