counter timer

[T.Q Huy]

I need 04 channels finite pulse train generation. The number of pulse of each channel is difference. Is PCI -6624 suitable for my application?

Best Regards

T.Q Huy - Vietnam

[Stuart_R]

Hi,

That device doesn't exist can you check and repost with the actual device that you are talking about.

Thanks,

Stuart

[GDE]

Quick correction here, the PCI-6624 is an actual NI board; here is the product sheet for the device.

Now in regard to you question, the board has 8 different counters, so each counter can do its own pulse generation. So having 4 different pulse trains (even with different number of pulses) shouldn't be a problem for this board.

Hope that helps, good luck!

-GDE

[Travis G.]

Hello T.Q.,

Unless you need non-TTL voltages for your pulse train, I would actually recommend the PCI-6602.  You can output pulse trains of higher frequency (up to 80 MHz), and don't have to supply an external voltage source.  One thing to realize is that, unlike a continuous pulse train generation task, a finite pulse train task actually requires two counter channels - one to output the pulse, and the other to count the pulses in order to determine when to stop the generation.  The PCI-6602 has 8 counters onboard, which is just enough to output 4 finite pulse trains. 

I hope this helps,

Travis G.
Applications Engineering
National Instruments
www.ni.com/support