Sim_on112

Hi, I want to record some step responses of the RPM of an engine in WaveForms. The RPM sensor provides a sine signal, the frequency of this signal represents the RPM. So my intention was to visualize and record (around 5-10 minutes) this frequency and additionally my step signal, which is a 0-5V signal. The second one is no problem, but I can't find a solution for displaying and exporting the frequency over time. I need the data in one file in CSV format, with a sampling rate of 1kHz or at least 100 Hz. I am using the AD2. I tried some ways so far, one was a custom script, but I had some issues with the sampling time, because it was not constant. I guess this is because of the "Scope.State.running()" method, but I'm not sure. Is there also another way for the time of the measurements? In this script I used Date(), but in fact, the sample time in ms would be enough. It would be nice if someone has a solution about this topic!