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Agilent Technologies E3631A User Manual

Agilent Technologies E3631A
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Chapter 4 Remote Interface Reference
Using the APPLy Command
75
4
Using the APPLy Command
The APPLy command provides the most straightforward method to program the
power supply over the remote interface. You can select the specific output, output
voltage, and output current all in one command.
APPLy
{P6V | P25V | N25V}[,{<voltage>| DEF | MIN | MAX}[,{<current>| DEF | MIN | MAX}]]
This command is combination of INSTrument:SELect, [SOURce:] VOLTage,
and [SOURce:]CURRent commands. The values of voltage and the current of the
specified output are changed as soon as the command is executed.
You can identify each output by the output name (P6V, P25V or N25V) as described
in Table 4-1. For the voltage and current parameters of the APPLy command, the
ranges depend on the output currently selected. You can substitute “MINimum”,
“MAXimum”, or “DEFault” in place of a specific value for the voltage and current
parameters. MIN selects the lowest voltage and current values allowed for the
selected output. MAX selects the highest voltage and current values allowed. The
default voltage values are 0 volts for all outputs. The default current values are 5
A for +6V output and 1 A for ±25V outputs. The default voltage and current values
are exactly the same as the *RST values. See Table 4-1 for details of parameters.
If you specify only one value for the parameter, the power supply regards it as voltage
setting value. If you do not specify any value for the parameter, the APPLy command
only selects the output specified and acts as the INSTrument command.
APPLy? [{P6V | P25V | N25V}]
This command queries the power supply's present voltage and current values for each
output and returns a quoted string. The voltage and current are returned in sequence
as shown in the sample string below (the quotation marks are returned as part of the
string). If any output identifier is not specified, the voltage and the current of the
currently selected output are returned.
"5.000000,1.000000"
In the above string, the first number 5.000000 is the voltage limit value and the second
number 1.000000 is the current limit value for the specified output.

Table of Contents

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Agilent Technologies E3631A Specifications

General IconGeneral
BrandAgilent Technologies
ModelE3631A
CategoryPower Supply
LanguageEnglish

Summary

The Front Panel at a Glance

Front-Panel Voltage and Current Limit Settings

Display Annunciators

The Rear Panel at a Glance

Environmental Conditions

Declaration of Conformity

Chapter 1 General Information

Safety Considerations

Covers safety and EMC requirements for the instrument.

Options and Accessories

Lists available options and accessories for the power supply.

Description of Agilent E3631A

Provides a detailed overview of the power supply's features and functionality.

Installation and Setup

Details initial inspection, cooling, location, and rack mounting procedures.

Input Power Requirements

Explains AC input voltage selection and power-line cord requirements.

Chapter 2 Initial Operation

Preliminary Checkout

Steps to verify the power supply is ready for use before initial operation.

Power-On and Output Checkout

Procedures for checking power-on self-test and basic output functions.

Chapter 3 Front-Panel Operation

Front-Panel Operation Overview

Introduces front-panel keys and modes for operating the power supply.

Output Operation Modes

Details constant voltage, constant current, and tracking output operations.

Storing and Recalling Operating States

Explains how to save and retrieve instrument configurations.

Output Control and System Operations

Covers disabling outputs, knob locking, self-tests, error conditions, and display control.

Remote Interface Configuration

Guides on selecting interfaces, setting GPIB addresses, and RS-232 parameters.

GPIB and RS-232 Interface Configuration

Details GPIB setup, RS-232 setup, connection, and troubleshooting.

Calibration Overview

Provides an overview of calibration security, code changes, count, and message features.

Chapter 4 Remote Interface Reference

SCPI Command Summary

Summarizes available SCPI commands for programming the power supply.

Simplified Programming Overview

Introduces basic programming methods using APPLy, low-level commands, output control, and triggering.

Output Setting and Operation Commands

Details commands for selecting, setting, and operating outputs.

Triggering Commands

Explains how to select trigger sources and manage triggering operations.

System-Related Commands

Covers commands for display control, beeper, errors, version, and reset.

Calibration Commands

Details SCPI commands for managing calibration security, current, voltage, and string data.

RS-232 Interface Commands

Lists commands specific to RS-232 communication with the power supply.

The SCPI Status Registers

Details event, enable, summary, questionable, standard, and byte registers and their usage.

Status Reporting Commands

Covers commands for querying system errors and status registers.

An Introduction to the SCPI Language

Explains SCPI language basics, command format, separators, and parameter types.

Interface Management and Conformance

Covers halting outputs, SCPI conformance, and IEEE-488 conformance.

Device Specific Commands

Lists commands specific to the Agilent E3631A, not in the SCPI standard.

Chapter 5 Error Messages

Execution Errors

Lists and explains execution errors related to command syntax and parameters.

Self-Test and Calibration Errors

Details error codes for self-tests and calibration failures.

Chapter 6 Application Programs

Programming Examples Overview

Introduces example programs in BASIC and C/QuickBASIC for GPIB and RS-232.

Using APPLy and Low-Level Commands

Demonstrates setting outputs and using commands via APPLy and low-level SCPI.

Using Status Registers and RS-232 Operation

Shows using status registers for interrupts and RS-232 communication examples.

Chapter 7 Tutorial

Overview of Agilent E3631A Operation

Explains the basic design and operation of series regulated power supplies.

Output Characteristics and Load Considerations

Describes output modes, unregulated states, unwanted signals, and load connection factors.

Extending the Voltage and Remote Programming

Covers series connections for higher voltage and factors affecting remote programming speed.

Reliability and Cooling

Discusses component reliability, internal heat, and cooling requirements for the power supply.

Chapter 8 Specifications

Performance Specifications

Lists warranted performance parameters like output ratings, accuracy, and ripple.

Supplemental Characteristics

Details non-warranted characteristics such as temperature, stability, speed, dimensions, and cooling.

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