chart history maximum and recomendation + software starting DAQmx acqusition

[starcha]

    Two questions:

    Chart history parameter what is maximum number (by maximum I think of recomendations or something like that), in my case I need to store around 900000 samples,
    is there any recomendation about it...

    DAQmx.. i wish first to set up parameters of acqusition (sample rate, terminal configuration, terminal range...) and then when everything is setup, then to start acqusition when I want cotroled by software... after I stop acqusition (which is performed in while loop) i wish not to stop the VI, but to have an chance to search the history by scroll bar, and to save particular part of chart, with interesting detail... (just the part with interesting details..)

What program structure you suggest...

[ChrisJ]

On the first question,

You can definitely set the chart history length to 900,000 samples. Be aware that this will increase the size of your VI as memory has to be allocated for those 900,000 elements before the VI runs. I hope this helps.

Cheers,
Chris J