how to acquire pretriggered acquisition using 5124

[ak ats]

hi

how can i acquire pretriggered acquisition using PXI 5124 high speed digitizer? i am using edge triggering with a threshold voltage of  1V, i need to acquire the signal from 0V is this possible? i know, it is possible by pretriggered acquistion.

 how to do pretriggered acquisition? 

[Ayman K]

Hello AK ats,

The PXI-5124 operates on a reference fashion. What this means is that you can specify the reference position  parameter of the ni_Scope Configure Horizontal Timing VI to determine the number of pretrigger versus posttrigger points that are stored. This percentage is specified as a percent of the record, from 0-100. For example, a 0% reference position means that you will have the actual record length points stored after the trigger occurs, while the 100% reference position means that all the samples are stored before the trigger occurs.

I hope this answers your question.

Ayman K