Hello,
To convert the binary data to scaled data (floating point), you need to use another function called AI_VScale. The help for this function is provided in the NIDAQ Function Reference Manual which is available under Start>>>>Programs>>National INstruments>>NI-DAQ>>NI-DAQ Help.
If you want to see an example that uses this function, then go to Start >> Programs >> National Instruments >> NI-DAQ>> NI-DAQ Examples Help>> List of Examples>> by NI-DAQ functions Used
Sincerely,
Sastry V
Applications Engineer
National Instruments.