What is the max rate using PXI 5922 for Analog input and the DAQmx PXI 6255 for Analog output due to windows processing time ???

[Shauly]

Hi

I'm using Digitizer PXI 5922 for analog input and the DAQmx PXI 6255 for analog out put.

the analog in put that I acquire is being sent to mathematical calculation (formula VI) before generated out with the PXI 6255.

I know that the maximum sampling rate of the Digitizer is 15MS/s and the max AO rate of the PXI 6255 is 2.86 MS/s but do I have

any limitation what so ever due to windows processing time??? if so what are they ??

Thanks

Tamir,

[The_Red_Barron]

Howdy Tamir!

If you are trying to perform calculations while you are acquiring and generating data then yes, the Windows processing time could results in a bottleneck for your program.  The amount of time required by Windows to perform the calculations relies on multiple factors such as the intensity and amount of calculations you are trying to perform, the speed of your processor and RAM, number of processor cores, other programs running in Windows, etc... If you are performing continuous acquisition/generation and mathematical calculations at the same time it will be necessary that the program loop runs fast enough to keep up with reading from/writing to the input/output buffers.  If the calculations you are trying to perform are too intense for the system to keep up with the acquisition/generation then you may need to perform the calculations after the fact in post-processing.

Regards,