This VI initializes and closes the USB virtual COM port, and sends a USB trigger command, for an ABR3009 scanner set up for a USB trigger command of "T". This vi, also, scans using the ABR3009 scanner. 
A received message of "[1]" or "NOREAD" indicates that a ABR3009 could not properly scan the barcode. 
A received message of "" indicates that a ABR3009 could not properly scan the barcode OR that the Read Delay is not long enough for the current ABR3009 scanner settings.