User`s guide

Connecting Instruments to USB

Step 3: Assign Instrument Alias Name

Assigning an Alias

Name

When you apply power to a USB instrument and then connect the USB

cable between the instrument and your PC, an

Assign USB device alias

dialog box appears. From this dialog box, you can assign the instrument

Alias name, as desired.

The USB Alias name associates an alias with a specific instrument. You

can use the Alias name as a VISA rsrcName in viOpen( ) or as a SICL

address in iopen( ) instead of the instrument’s Vendor ID, Product ID, Serial

Number, and Interface Number (see Step 4: Check Instrument Identification

for details).

Example: Assigning a USB Alias Name

This figure shows an example Assign USG device alias dialog box for an

Agilent 33220A. To change the USB Alias name, type the new name in the

Alias name box and then click the OK button. The Alias name can be used as

the preferred address for the VISA rsrcName and the SICL address.

For this example, the Alias name has been changed to

.ArbGen. from the

default

.UsbDevice1.. Thus, ArbGen can be used in viOpen() as the VISA

rsrcName parameter, rather than

.USB0::2391::1031::MY43000029::0::INSTR..

Or,

ArbGen can be used in iopen() as the SICL address parameter, rather

than the alternate address of

.usb0[2391::1031::MY43000029::0].

NOTE

When power is applied, a

Found New Hardware dialog box may appear.

If so, follow the on-screen instructions for installation advice. Then, return

to this section.

You can assign a USB Alias

name from this dialog box. (If

you do not change the name

now, you can change it later

by using

IO Config.)