Usb Communications - Keithley DMM7510 Reference Manual

Section 2: General operation

USB communications

To use the rear-panel USB port, you must have the Virtual Instrument Software Architecture (VISA)
layer on the host computer. See
information.
VISA contains a USB-class driver for the USB Test and Measurement Class (USBTMC) protocol that,
once installed, allows the Microsoft
When you connect a USB device that implements the USBTMC or USBTMC-USB488 protocol to the
computer, the VISA driver automatically detects the device. Note that the VISA driver only
automatically recognizes USBTMC and USBTMC-USB488 devices. It does not recognize other USB
devices, such as printers, scanners, and storage devices.
In this section, "USB instruments" refers to devices that implement the USBTMC or
USBTMC-USB488 protocol.
The full version of National Instruments (NI
other kind of USB device that you want to communicate with VISA. For more information, see the
National Instruments
Using USB
A USB cable is shipped with the instrument. If the original cable is not available, you will need a USB
cable with a USB Type B connector end and a USB type A connector end. You will need a separate
USB cable for each instrument you plan to connect to the computer at the same time using the USB
interface.
To use a USB connection:
1. Connect the Type A end of the cable to the host computer.
2. Connect the Type B end of the cable to the instrument.
3. Turn power to the instrument on.
4. When the host computer detects the new USB connection, the Found New Hardware Wizard
starts.
5. On the "Can Windows connect to Windows Update to search for software?" dialog box, click No,
and then click Next.
6. On the "USB Test and Measurement device" dialog box, click Next, and then click Finish.
2-78
Model DMM7510 7½ Digit Graphical Sampling Multimeter Reference Manual
How to install the Keithley I/O Layer
® ®
Windows
®
) VISA provides a utility to create a USB driver for any
(http://www.ni.com) website.
(on page 2-88) for more
operating system to recognize the instrument.
DMM7510-901-01 Rev. B / May 2015