Need help with Labview counters

[Lightfoot26]

Ok, so I have a counter focused on counting 14 ticks per revolution of the wheel. My problem is these ticks continue to accumulate as the match progresses. For example... If I start at 0 and run the wheel for 1 sec, I get 140 ticks in that time. Therefore I have spun the wheel 10 revolutions, then if I run the wheel again, the counter starts from 140. I am trying to adapt this counter to find RPM.... I have boiled it down to Delta Ticks over Delta time, the math is good and everything but I am having trouble putting it all together in labview. any help is appreciated! Thanks!

[Greg McKaskle]

What you are doing sounds fine, but if you want to let the library do the delta for you, you can use the Reset VI. I think it would be better to keep it the way you have it and experiment with the dT that makes sense for your application.

Greg McKaskle

[Lightfoot26]

Well I am still having a bit of trouble making Labview happy... Mind writing and posting a quick vi of what you think would work? I also think running it in periodic would be more advantageous... but I can't get anything to execute in periodic.