Communication for DL350

Hello,
Need help to change default communication port to Com4, the program default Com1 and Com2, my laptop does not have the com port so I use the UBS Converter to RS-232 and default of BB UBS-RS232 is Com4.
Communication using Direct Logic 5 software

Thanks for the help
Wally

You should be able to change the USB to COM1 or 2
use device manager - Ports - driver advanced setup