RPM calculation cRIO n9401

[M61X90902]

Can anybody please let me know how to calculate the RPM using the cRIO, NI 9401 please.

Thanks in advance. 

[crossrulz]

There are a few ways to do this:

1. Count the number of ticks between pulses.  This will give you a period (time).  From there it is just a little math: 60/T

2. Count the number of pulses in a second and then multiply by 60.

For both of these, I am assuming 1 pulse per revolution.  If you have more pulses in a revolution, just divide by that number.