LABVIEW的功能及VI参考手册

About This Manual

OrganizaTIon of the Product User Manual .......................................................................xxiii

ConvenTIons Used in This Manual...................................................................................xxiv

Related DocumentaTIon....................................................................................................xxv

Related Online DocumentaTIon........................................................................................xxvi

Customer Communication ...............................................................................................xxvi

Chapter 1

Introduction to the LabVIEW Functions and VIs

Locating the G Functions and VIs ...................................................................................1-1

Function and VI Overviews.............................................................................................1-2

Structures...........................................................................................................1-2

Numeric Functions ............................................................................................1-3

Boolean Functions.............................................................................................1-3

String Functions.................................................................................................1-3

Array Functions .................................................................................................1-3

Cluster Functions...............................................................................................1-4

Comparison Functions.......................................................................................1-4

Time and Dialog Functions ...............................................................................1-4

File I/O Functions..............................................................................................1-4

Advanced Functions ..........................................................................................1-4

DAQ ..................................................................................................................1-5

Instrument I/O ...................................................................................................1-5

Communication .................................................................................................1-5

Analysis VIs ......................................................................................................1-5

Select A VI... .....................................................................................................1-6

Tutorial ..............................................................................................................1-6

Instrument Driver Library .................................................................................1-6

User Library.......................................................................................................1-7

G Function and VI Reference Overview

G Functions Overview..................................................................................................... 2-2

Introduction to Polymorphism......................................................................................... 2-2

Polymorphism ................................................................................................... 2-2

Unit Polymorphism ........................................................................................... 2-2

Numeric Conversion ......................................................................................... 2-3

Overflow and Underflow .................................................................................. 2-5

Wire Styles........................................................................................................ 2-5

Chapter 3

Structures

Structures Overview ........................................................................................................ 3-2

Chapter 4

Numeric Functions

Polymorphism for Numeric Functions ............................................................................ 4-2

Polymorphism for Trig Functions..................................................................... 4-3

Polymorphism for Logarithmic Functions........................................................ 4-3

Polymorphism for Conversion Functions ......................................................... 4-4

Polymorphism for Complex Functions ............................................................. 4-4

Arithmetic Function Descriptions ................................................................................... 4-4

Conversion Functions Descriptions................................................................................. 4-9

Trigonometric Functions Descriptions ............................................................................ 4-14

Logarithmic Functions Descriptions ............................................................................... 4-18

Complex Function Descriptions ...................................................................................... 4-20

Additional Numeric Constants Descriptions ................................................................... 4-22

Chapter 5

Boolean Functions

Polymorphism for Boolean Functions............................................................................. 5-1

Boolean Function Descriptions ....................................................................................... 5-2

Chapter 6

String Functions

Overview of Polymorphism for String Functions ........................................................... 6-1

Polymorphism for String Functions.................................................................. 6-2