Issue with Falltime Measurement in PSpice - Discrepancy between Simulated Waveform and Evaluate Measurement

Question

I am encountering an issue with the Evaluate Measurement function in PSpice. Specifically, I am trying to measure the fall time (Falltime Noovershoot) of a waveform. 
 When I visually inspect the waveform, the fall time appears to be around 20 ns. However, the Evaluate Measurement tool reports a fall time of 2.5 &micro;s, which is significantly different from what I observe. 
 Has anyone else experienced this discrepancy? Are there any known issues or settings that I might be overlooking which could cause such a large difference between the visual inspection and the measured value? 
 I appreciate any insights or suggestions you might have to resolve this issue. 
 Thank you!

AyushD · Answer

This function finds the difference between the X values where the trace first crosses 90% and then 10% of its maximum value with a negative slope. i.e. Find the falltime of a signal with no overshoot. 
 If the signal has overshoot, use Falltime_StepResponse()

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Issue with Falltime Measurement in PSpice - Discrepancy between Simulated Waveform and Evaluate Measurement

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