jcallen1 Posted November 7, 2011 Share Posted November 7, 2011 I have set up aquisition, display and logging to reflect sudden ionospheric disturbances and indicating the time of same using UTC time. However, when I save data to be charted in EXCEL, that program indicates that there is a maximum number of data points that can be accepted. I am presently logging at the LabJack/DaqFactory default of every second. How can I modifiy DaqFactory to aquire/log data at say every 5 seconds intead of every second so that I can record 24 hours of data in each EXCEL chart? Also, thanks for your help on charting UTC time - it worked. Jim Allen Link to comment Share on other sites More sharing options...
AzeoTech Posted November 7, 2011 Share Posted November 7, 2011 1st, among other things, the problem using Excel for data analysis, as you've seen, is that its limited to 65535 rows. Given that there are 86400 seconds in a day, it therefore can't handle a day's worth of data at one second intervals. So my first suggestion is to consider using a real data analysis tool rather than Excel. I personally recommend Igor Pro from Wavemetrics and used it for years in a previous life. It is very easy to use for the beginner, but has a powerful scripting language for the advanced user (much like DAQFactory actually). But to answer the original question, simply change the Timing parameter for your channel from 1 to 5 to get it to take data every 5 seconds. Link to comment Share on other sites More sharing options...
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