Select an instrument
Select the instrument you want to communicate with from the Select an instrument pull-down menu. If you are using a serial instrument, select the port to which the instrument is connected. If you are using an Ethernet instrument, either enter the VISA resource descriptor for the instrument, or use Measurement & Automation Explorer to configure the instrument. If no instruments or ports appear in the list, or if you recently connected an instrument to the computer, click the Refresh instrument list button.