Agilent Technologies 8753ET Guia do Utilizador descarregar pdf (Página 298)

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2-6 Chapter 2

Introduction to Instrument Control

Instrument Control using the VXIplug&play Driver

Interface Bus Verification Procedure (National Instruments Card)

1. Check the bus connection by running Win32 VISA Interactive Control. When this

program is run, it automatically reports what it finds on the bus. Refer to Figure 2-2.

Notice that the program is reporting instruments at addresses 16 and 17. As mentioned

earlier, these addresses designate the instrument and its display, respectively.

Figure 2-2 Win32 VISA Interactive Control Window: Bus Report

2. To further verify GPIB operation, double click on “GPIB0::16::INSTR” and then perform

the following steps. Refer to Figure 2-3 for a view of the window you will be using.

a. Make sure that the “Basic I/O” tab is selected.

b. Click on the “Write” tab.

c. Enter PRES; in the “Buffer” text box.

d. Click on “Execute.”

e. This command should preset the analyzer. If an instrument preset does not occur,

there is a problem. Check all GPIB address settings and physical connections. Most

GPIB problems are caused by an incorrect address or faulty/loose GPIB cables.

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