Agilent Technologies N4962A Podręcznik Użytkownika Pobierz pdf (Strona 60)

Remote GPIB Interface

Serial BERT 12.5 Gb/s User Guide

5.4 SCPI Mandated Commands

The N4962A also conforms to the Standard Commands for Programmable

Instrumentation (SCPI 1999.0) command set. Two SCPI mandated commands

are implemented, listed in Table 20.

Table 20. N4962A SCPI mandated commands

Command

Function

:SYSTEM:ERROR?

Returns event/error number and message from error queue

:SYSTEM:VERSION?

Returns SCPI protocol version number (1999.0)

5.5 N4962A Device Commands

The N4962A device commands are summarized in Table 21. The following

descriptions and examples assume the user is programming with Agilent

BASIC, a simple interpretative language that is convenient for instrument

programming.

For the examples below, the device being programmed is located at GPIB

device address 725. The actual address varies according to how you have

configured the GPIB bus for your own application. For information to change

the bus address see Section 5.

Table 21. N4962A device commands

Command

Parameters / Results

:SOURce:ROSCillator:SOURce

{? | INTernal | EXTernal}

:SOURce:ROSCillator:[INTernal]:FREQuency

| {9850 <= value <= 11350}}

:SOURce:ROSCillator:JITTer

{? | ON | OFF}

:SOURce:PATTern

{? | PRBS{7 | 10 | 15 | 23 | 31}}

:SOURce:PRBS:MARKspace

{? | MS{2 | 4 | 8}}

:SOURce:PRBS:INVert

{? | ON | OFF}

:SOURce:PRBS:IERR:RATe

{? | OFF | ERR1E{0 <= value <=

7}}

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Agilent Technologies N4962A Podręcznik Użytkownika Strona 60