Bigger period of sampled with LabWindows

[fernando@eupla.unizar.es]

Dear all:

I am programming a DAQcard 700 with Labwindows CVI and I am using the traditional NIDAQ. On he one hand I don't unaderstand very well the diffrerence between Scan rate and Sample rate.  On the other hand, I am using the High level function Lab_ISCAN_Op (1, 2, 1, piBuffer, 1000, 1000.0, 0.0, soBuffer); and I have the limitations of a buffer of 65535 samples, however I woul need a time of sampling much bigger in a continuous sampling, for instance with a frecuency of sample of 10000 Hz and  during several minutes. ¿Could you help me in this matter?

Thank you very much.

[Javier_Gutierrez]

Hi Fernando

Most of the terms used in Data acquisition are explained on this link
http://digital.ni.com/public.nsf/allkb/DBE7AC32661BCF9B86256AC000682154

For high speed, long acquisition you should use continous acquisition. This link explains how it works
http://zone.ni.com/devzone/conceptd.nsf/webmain/F2DDCBAD754C687C86256802007B8514?OpenDocument+

You could find examples about how to do it in your c:\Archivos de Programa\National Instruments\CVI80\Samples\DAQ folder

Hope it helps

Javier Gutiérrez
NI Application Engineering