Hi there, I have a need to get RPM from a 1 pulse per revolution signal, but i only have analogue input modules available to use (I am using 4 slots in my chassis, and only have a free channel on a NI9203 or 3 x NI 9230). I understand this involves finding the rising edges over time, however I cannot seem to find how to do that with the NI9203 or NI 9230 modules. Is there a way i can do this with a math channel or similar?