how trigger works

[anny321dum]

I am trying to check how the trigger works. I am trying to make a waveform stable by using triggering. Here I am trying to search the data to find the index at which the trigger condition occurs, and then using that index to cut off the pre trigger portion of data and keep next samples to display. Below is the vi attached. I am not sure how to do that. I tried but I am getting an error. Would really appreciate your help.

[Tuco100s]

anny321dum,

Here is some useful information regarding triggers and data acquisition:

Tips and Techniques in Data Acquisition Triggering - NI-DAQmx
http://www.ni.com/tutorial/4329/en/

Learn 10 Functions in NI-DAQmx and Handle 80 Percent of Your Data Acquisition Applications
http://www.ni.com/product-documentation/2835/en/

Regards,

tuco100s