How to make AI acquire Waveform stop scanning...

Hi... i'm using labview 7.1 and playing a DAQ hardware now...
i wish to know how to make the "AI Acquire Waveform" stop scanning data into waveform, i heard someone said that got a build in fuction to stop it... can anyone tell me is it true? If no, can let me know the method to stop it?
with regard
Jaxx

If you want to pause your acquisition then the best thing to use would be Pause Triggering (DAQmx) or Scan Clock Gating (Traditional DAQ). You can find examples for either one in the NI Example Finder, search for 'pause' and go to the Cont Acq&Chart Samples-Int Clk-Pause Trigger.vi (DAQmx), or you can search for 'digital scan clock gating' in the search field for ni.com.
You may also want to look at this site for more information on triggering concepts: http://zone.ni.com/devzone%5Cconceptd.nsf/webmain/2A03115556FB233386256870005BB522
In your original comment you stated you simply want a pulse on one line to start, and then to pause the acquisition on the next, then repeat the operation. You may just need to use the Start and Stop Trigger examples reinitialize your task if this is the case where you are just looking at a pulse on one line. Pause triggering or Scan Clock Gating will relate more to you having a single line go high and staying high until you want to pause the acquisition.
Particularly if you are in the situation where you have pulses coming in on a single line I would recommend you look at the DAQmx examples rather than the Traditional DAQ examples. The architecture of the code is more efficient and will allow you to more quickly reinitialize the task.
Otis
Training and Certification
Product Support Engineer
National Instruments

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| 11 |     TABLE ACCESS FULL      | SYS_TEMP_0FD9D662A_D5091620 |     1 |     4 |     2   (0)| 00:00:01 |
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