Hi dcrustee,
first you should measure the current using the 9227 module, then you need to apply a FFT on those measurement data!
What have you tried so far? Where are you stuck?
Did you take the Getting Started courses offered on top of the LabVIEW forum?
Best regards,
GerdW
using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019