INTRODUCTION TO PROGRAMMING

31

External References

31

GPIB References

31

SCPI References

31

GPIB Capabilities of the DC Source

31

Introduction to SCPI

32

Conventions Used in This Guide

32

Types of SCPI Commands

32

Multiple Commands in a Message

33

Moving Among Subsystems

33

Including Common Commands

33

Using Queries

33

Types of SCPI Messages

34

The Message Unit

34

Channel List Parameter

34

Headers

35

Query Indicator

35

Message Unit Separator

35

Root Specifier

35

Message Terminator

35

SCPI Data Formats

35

Numerical Data Formats

35

Suffixes and Multipliers

36

Response Data Types

36

SCPI Command Completion

36

Using Device Clear

37

PROGRAMMING THE DC SOURCE

39

Introduction

39

Programming the Output

39

Power-on Initialization

39

Enabling the Output

39

Output Voltage

39

Overvoltage Protection

40

Output Current

40

Output Mode

40

Oscillation Protection

41

Triggering Output Changes

41

Output Trigger Model

41

Setting the Voltage and Current Trigger Levels

42

Enabling the Output Trigger System

42

Selecting the Output Trigger Source

42

Generating Output Triggers

43

Making Measurements

43

Average Measurements

43

Power Line Cycles

44

Measurement Samples and Time Interval

44

Current Ranges

45

Window Functions

45

Returning All Measurement Data From the Data Buffer

45

Triggered Measurements

45

Measurement Trigger Model

46

Enabling the Measurement Trigger System

46

Selecting the Measurement Trigger Source

46

Selecting the Sensing Function

47

Output Settling Delay

47

Generating Measurement Triggers

47

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Agilent Technologies N3280A manual External References, Gpib Capabilities of the DC Source Introduction to Scpi