how to configure the trigger to capture the Low level duration wave?

[ateproject2007]

In my waveform data, there is a low level duration ,see the attached picture, how to configure the trigger to capture the low level duration and then meausre it ? thanks.

[Dennis_Knutson]

Have you looked at the shipping examples of triggered acquisition?

As far as the analysis of the captured waveform, look at the answers in your other post