Discussion:
How to log data at different logging rate in LabVIEW DSC
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craige
2008-06-18 12:40:06 UTC
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The question still remains regarding the frequency of events.....
 
Say I have a +-10v sin wave running at 1Hz placed into one of my input channels and I have my deadband set to 1%.  How many values will be logged into my database each second since this value is continuously changing? Will this in effect give me the sampling capability of the Citidel Database, my shared variable engine, or my cpu marriaged with some NI framework?
 
Something tells me that if I duplicated this signal 1000 times that the frequency of events would decrease due to CPU performance but I could be wrong. Any help on this would be appreciated.
Aashish_M
2008-06-24 03:10:06 UTC
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Hey Craige,
 
If you refer to <a href="http://zone.ni.com/devzone/cda/tut/p/id/6579#toc4" target="_blank">Logging Data with National Instruments Citadel</a>&nbsp;you find some interesting benchmarking figures with National Instruments Citadel.
&nbsp;
"Benchmarks have demonstrated that you can write single-point data to a Citadel trace at approximately 80,000 points per second on a 3Ghz Pentium IV"
&nbsp;
Hopefully this helps!!

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