reset the counter of pfi

I read an encoder signals of pulse with the CAI (meter high speed) of labview and NI USB Daq 6009. So I tried to do it the easiest way, I found, by using the labview "component" (I don't know the exact name) of the attached photo. I account the impulses of wiring just a digital indicator on the port of outuput of 'data' of this 'element', and it seems to work perfectly. But my problem is when I try to reset this counter. I tried to connect a Boolean control at the port of entry 'stop' of this component and it worked when I click control Boolean true, but when I turn to false, it does not count the pulse more. It counts only the pulses again when I press the buttom game and press stop to run the VI again.

The block that you use is an express vi, it will not certainly what you want, use discrete vi.

You must initialize the acquisition of data outside of a while loop and then inside the loop States (Please search for state machine architecture) as count, pause, reset, stop, etc.

You can modify this example and add States in for the while loop as a result. Also try the example finder, labview comes with plenty of examples for the daq hardware.

I hope this helps.

Tags: NI Software

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