User manual

Appendix
C: Communication interface Model 2110 5½ Digit Multimeter
Reference Manual
C-2 2110-901-01 Rev. C/August 2013
The full version of National Instruments (NI
®
) VISA provides a utility to create a USB driver for any
other kind of USB device that you want to communicate with VISA. For more information, see the NI
VISA website (see National Instruments VISA site - http://www.ni.com).
Communicate with the instrument
To communicate with the USB device, you need to use NI-VISA
TM
. VISA requires a resource string in
the following format to connect to the correct USB instrument:
USB[board]::manufacturer ID::model code::serial number[::USB interface number][::INSTR]
This requires that you determine the parameters. You can gather this information by running a utility
that automatically detects all instruments connected to the computer.
If you installed the Keithley I/O Layer, the Keithley Configuration Panel is available from the
Microsoft
®
Windows
®
Start menu in the Keithley Instruments menu.
To use the Keithley Configuration Panel to determine the VISA resource string:
1. Start the Keithley Configuration Panel. The Select Operation dialog box is displayed.
2. Select Add.
Figure 43: Select Operation dialog box
3. Click Next. The Select Communication Bus dialog box is displayed.