Agilent Technologies 8935 Series Manual do Utilizador descarregar pdf (Página 38)

38 Chapter 1

O:\Manuals\E6380A_Progguid\Book\Usehpib.fm

Using HP-IB

Getting Started

Using the HP-IB with the Test Set’s built-in IBASIC

Controller

The Test Set has two HP-IB interfaces, an internal-only HP-IB at select

code 8 and an external HP-IB at select code 7. The HP-IB at select code

8 is only available to the built-in IBASIC controller and is used

exclusively for communication between the IBASIC controller and the

Test Set. The HP-IB at select code 7 serves three purposes:

1. It allows the Test Set to be controlled by an external controller

2. It allows the Test Set to print to an external HP-IB printer

3. It allows the built-in IBASIC controller to control external HP-IB

devices

IBASIC programs running on the Test Set’s IBASIC controller must use

the internal-only HP-IB at select code 8 to control the Test Set. IBASIC

programs would use the external HP-IB at select code 7 to control

HP-IB devices connected to the HP-IB connector.

NOTE

Refer to “Overview of the Test Set” on page 22 for a detailed

explanation of the Test Set’s architecture.

When using a BASIC language Workstation with an HP-IB interface at

select code 7 to control the Test Set, HP-IB commands would look like

this:

Example 1-5 Example

! This command is sent to the Test Set at address 14.

OUTPUT 714;"*RST"

! This command is sent to another instrument whose address is

19.

OUTPUT 719;"*RST"

When executing the same commands on the Test Set’s IBASIC

controller, the commands would look like this:

Example 1-6 Example

OUTPUT 814;"*RST"

! Command sent to internal-only HP-IB at select code 8,

! Test Set’s address does not change

OUTPUT 719;"*RST"

! Command sent to external HP-IB at select code 7,

! other instrument’s address does not change.

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Agilent Technologies 8935 Series Manual do Utilizador Página 38