The LabVIEW NI-DAQmx Base Help gives a lot of information on the LabVIEW VI's and properties. In LabVIEW, select Help » Search the LabVIEW Help and the VI reference help section for NI-DAQmx Base.
Also, please see the KB below for the location of examples for DAQmx Base and the Developer Zone article for some getting started information with DAQ.
Where Can I Find NI-DAQmx Base Examples?
http://digital.ni.com/public.nsf/allkb/BEA8C88ED8B09AF286256ED0004544F7?OpenDocumentComplete Data Acquisition Tutorial
http://zone.ni.com/devzone/cda/tut/p/id/3116
Regards,
Chris Delvizis
National Instruments