VI to convert input signal from NI 9402 into a rpm value based on pulse frequency

Hello,

I am looking for a VI to convert an input signal from NI 9402 into a rpm value based on pulse frequency. Is there such a thing that exists in the national instruments library?

I am running LAbview 2014 embedded control and monitoring suite on a cRIO 9802 high performance integrated system with NI 9402, 4-Channel, 50 ns, LV TTL Digital Input/Output Module, ultra high-speed digital I/O module for cRIO. 

Any help would be greatly appreciated.