The problem you are having is because you are using an example that uses the NI-DAQ driver as the API. The One Channel Scope.vi is an example program that actually uses MIO DAQ devices and not our High Speed Digitizers. When you look at the example finder in LabVIEW, it will actually give you a list of supported devices for each VI.
To get the example programs for your high speed digitizer using the NI-SCOPE API, go to Sart>>programs>>National Instruments>>NI-SCOPE>>Examples.
Best Regards,
Jeremy R.
NI - Applications Engineer