Sorry mate,
I don't understand completelly your question.
If you need to make a signal trace, you can do it with:
STISR:TRI=1;
STUNI:LIM=1,UNIT=SLP60;
STTSI:TRI=1;
STTSE:TRI=1;
STRAP:TRI=1;
To understand results, check it here
thread806-399711
Regards