ELVIS 1, II and II+ are controlled with DAQmx code blocks.
ELVIS III uses RT Toolkit and FPGA Toolkit....far more advanced and complex.
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Take a look at DATEx, FOTEx, HELEx & SIGEx add-in trainer boards for NI ELVIS 1,2 & 2+ and DXIQ, ESSB for NI ELVIS III and myDSP for myDAQ to learn Wireless Telecoms, Signals & Systems, Fiber Optics and Green Energy principles (www.emona-tims.com)