how to measure the rpm using NI 9411 and counters

[vaishnavinatarajan]

How to calculate the rpm of a shaft using NI 9411 and counters?

[KateB]

http://forums.ni.com/t5/Signal-Conditioning/measuring-rpm-using-DAQ-device/m-p/2571131#M7353

Additionally, if you set it to read a degree instead of pulse, your calculation will change a bit, but I'll leave that to you.

[BikeBandit]

Alternatively you can use the counter frequency input with DAQmx to measure the frequency and then just convert that to RPM.