California Instruments 2253iX Manual de Instruções descarregar pdf (Página 21)

Programming Manual Compact i / iX Series

AMETEK Programmable Power Division 21

3.2 USB Interface

Unlike RS232, there are no generic drivers available as a rule for use in programming

environments such as LabView, LabWindows/CVI or Visual Basic. However, support for USB is

included under VISA and may be used to interface to the power source using the USB interface.

A virtual serial port utility is provided on CD ROM CIC496 which ships with the i/iX Series power

source. This utility will provide a virtual COM port on a PC under Windows XP/Windows Vista.

This allows programs to use the USB port as though it is a regular serial port on the PC. The

baud rate for this mode of operation is fixed at 460,800. The USB-Serial Adaptor installation

must be run to install the virtual com port driver. This option is only supported under Windows

XP/Windows Vista.

3.2.1 USB Driver Installation

When connecting the AC source through the USB interface to Windows XP/Windows Vista PC,

the presence of a new USB device will be detected. Windows will display a dialog after a short

delay prompting the user to install the USB device drivers.

On the CIC496 CD browser, select “USB-to-COM(WinXP/Vista32), select “GUI Software” tab and

click “Execute Selection” to complete the USB driver installation by selecting “Next”, “Next”,

“Install”, then “Finish”.

Close CD browser and restart computer.

This driver will allow access to the AC source USB interface using a virtual COM port. Many

programming environments support RS232 access but not USB. The USB-to-COM virtual port

driver is distributed on the CIC496 CD ROM.

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California Instruments 2253iX Manual de Instruções Página 21