Welcome to Chief Delphi!
For a more specific answer to your question, check out this thread..
http://www.chiefdelphi.com/forums/sh...mode+t rigger3
I found this by searching "autonmous mode trigger". Just for reference, you can use the search function by clicking on the "Search" link in the top right corner of the page. There's all sorts of hidden goodies on this site, and it just takes a few minutes to find what you need!