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Agilent Technologies 5749A Scpi Commands an Introduction, Syntax, Multiple Commands in a Message

Models: 5751A 5744A 5743A 5750A 5749A 5752A 5747A 5742A 5748A 5741A 5745A 5746A

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4 Operating the Power Supply Remotely

SCPI Commands – an Introduction

SCPI (Standard Commands for Programmable Instruments) is an ASCII-based instrument command language designed for test and measurement instruments. SCPI commands are based on a hierarchical structure, also known as a tree system. In this system, associated commands are grouped together under a common node or root, thus forming subsystems. Subsystem commands perform specific power supply functions. A portion of the SOURce subsystem is shown below to illustrate the tree system.

[SOURce:]

CURRent

[:LEVel]

[:IMMediate] <NRf+> :TRIGgered <NRf+>

:PROTection

:STATe <Bool>

 

SOURce is the root keyword of the command, CURRent is a second-

 

level keyword, LEVel and PROTection are third-level keywords, and

 

IMMediate, TRIGgered and STATe are fourth-level keywords. Colons

 

(:) separate higher-level from lower-level keywords.

Syntax

 

 

The following command syntax is used in this manual:

Square Brackets [ ]

Items within square brackets are optional. The representation [SOURce:]VOLTage

 

means that SOURce: may be omitted.

Angle brackets < >

Items within angle brackets are parameter descriptions. For example, <NR1>

 

indicates a specific form of numerical data.

Vertical bar

Vertical bars separate alternative parameters. For example, VOLT CURR indicates

 

that either "VOLT" or "CURR" can be used as a parameter.

 

The syntax characters cannot be included in the command string.

Multiple Commands in a Message

Multiple SCPI commands can be combined and sent as a single message with one message terminator. There are two important considerations when sending several commands within a single message:

Use a semicolon (;) to separate commands within a message.

There is an implied path that affects how commands are interpreted by the power supply.

The command path can be thought of as a string that gets inserted before each keyword within a message. For the first command in a message, the path is a null string. For each subsequent command the path is defined as the characters that make up the keywords of the

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Series N5700 User’s Guide

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Agilent Technologies 5749A, 5752A, 5744A, 5743A, 5748A Scpi Commands an Introduction, Syntax, Multiple Commands in a Message
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5751A, 5744A, 5743A, 5750A, 5749A specifications

Agilent Technologies has been a leader in electronic measurement and analysis, with a suite of powerful instruments that cater to various applications in research, development, and manufacturing. Among these, the Agilent 5746A, 5745A, 5741A, 5748A, and 5742A models stand out for their advanced capabilities and features.

The Agilent 5746A is a high-performance signal analyzer that excels in time and frequency domain analysis. This device offers a wide frequency range and exceptional dynamic range, making it suitable for both RF and microwave applications. Its advanced digital signal processing allows for high-resolution spectrum analysis and real-time signal processing, which is essential for engineers and researchers working on complex signals.

The Agilent 5745A is known for its versatility as a multifunctional signal generator. It combines the functionalities of a vector signal generator with the precision of a traditional oscillator. This model provides high-quality waveform generation for a variety of modulation schemes, making it ideal for testing communication systems and conducting research in advanced modulation techniques.

The Agilent 5741A is a precision power meter that offers accurate measurements of RF power in a compact format. It is equipped with state-of-the-art sensing technology that ensures reliable and repeatable measurements. The 5741A is particularly useful for monitoring power levels in transmitters and receivers, and its intuitive interface makes it user-friendly for both novices and experienced professionals.

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