Web SAP Console - Advancing cursor

I have a question related to ABAP. I have to design a scanner transaction that will allow the user to scan multiple items. For each item scanned I need to have it invoke some logic that will take the input from the scanner and populate a table - in the PAI module.

My problem is that I cannot seem to get the PAI code to fire unless the user hits enter.

My question is... "Is there a way to fire the PAI when the field is completely filled or do I have have the handheld device send an enter when the barcode is scanned?"

Any help would be appreciated.

thanks,

Chip