Labview Introduction

Virtual Instrumentation With LabVIEW

Course Goals ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Section I ,[object Object],[object Object],[object Object],[object Object]

LabVIEW Programs Are Called Virtual Instruments (VIs) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

VI Front Panel Front Panel Toolbar Graph Legend Boolean Control Waveform Graph Icon Plot Legend Scale Legend

VI Block Diagram Wire Data Graph Terminal SubVI While Loop Structure Block Diagram Toolbar Divide Function Numeric Constant Timing Function Boolean Control Terminal

Express VIs, VIs and Functions ,[object Object],[object Object],[object Object],Express VI Standard VI Function

Controls and Functions Palettes Controls Palette (Front Panel Window) Functions Palette (Block Diagram Window)

Tools Palette Operating Tool Positioning/Resizing Tool Labeling Tool Wiring Tool Shortcut Menu Tool ,[object Object],[object Object],Scrolling Tool Breakpoint Tool Probe Tool Color Copy Tool Coloring Tool Automatic Selection Tool

Status Toolbar Run Button Continuous Run Button Abort Execution Pause/Continue Button Text Settings Align Objects Distribute Objects Reorder Resize front panel objects Execution Highlighting Button Step Into Button Step Over Button Step Out Button Additional Buttons on the Diagram Toolbar

Open and Run a Virtual Instrument Example finder

Creating a VI Control Terminals Block Diagram Window Front Panel Window Indicator Terminals

Creating a VI – Block Diagram

Wiring Tips – Block Diagram Wiring “Hot Spot” Clean Up Wiring Use Automatic Wire Routing Click To Select Wires

[object Object],[object Object],[object Object],Dataflow Programming

Help Options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Debugging Techniques ,[object Object],[object Object],[object Object],Click on broken Run button Window showing error appears Click on Execution Highlighting button; data flow is animated using bubbles. Values are displayed on wires. Right-click on wire to display probe and it shows data as it flows through wire segment You can also select Probe tool from Tools palette and click on wire

Section II – SubVIs ,[object Object],[object Object],[object Object]

Block Diagram Nodes Icon Expandable Node Expanded Node ,[object Object],[object Object],[object Object],[object Object]

SubVIs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Icon and Connector ,[object Object],[object Object],Icon Connector Terminals

Steps to Create a SubVI ,[object Object],[object Object],[object Object],[object Object],[object Object]

Create the Icon ,[object Object]

Create the Connector Right click on the icon pane (front panel only)

Save The VI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Insert the SubVI into a Top Level VI ,[object Object],[object Object],[object Object],[object Object]

Tips for Working in LabVIEW ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Section III – Data Acquisition ,[object Object],[object Object],[object Object],Computer DAQ Device Terminal Block Cable Sensors

Data Acquisition in LabVIEW ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DAQ – Data Acquisition ,[object Object]

Data Acquisition Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object]

Hardware Connections BNC-2120 SCB-68 NI-ELVIS SC-2075

Section IV – Loops and Charts ,[object Object],[object Object],[object Object],[object Object]

Loops ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Loops (cont.) 1. Select the loop 2. Enclose code to be repeated 3. Drop or drag additional nodes and then wire

Charts ,[object Object],[object Object]

Wiring Data into Charts ,[object Object],[object Object]

Section V – Arrays & File I/O ,[object Object],[object Object],[object Object],[object Object]

Adding an Array to the Front Panel ,[object Object],Drop it on the screen.

Adding an Array (cont.) ,[object Object]

Creating an Array with a Loop ,[object Object]

File I/O ,[object Object],[object Object],[object Object],Writing to LVM file Reading from LVM file

Write LabVIEW Measurement File ,[object Object],[object Object],[object Object]

Section VI – Array Functions & Graphs ,[object Object],[object Object],[object Object]

Array Functions – Basics Functions >> All functions>> Array

Array Functions – Build Array

Graphs ,[object Object],[object Object],Waveform Graph – Plot an array of numbers against their indices Express XY Graph – Plot one array against another Digital Waveform Graph – Plot bits from binary data

Graphs Right-Click on the Graph and choose Properties to Interactively Customize

Section VII – Strings, Clusters, & Error Handling ,[object Object],[object Object],[object Object],[object Object]

Strings ,[object Object],[object Object],[object Object]

Clusters ,[object Object],[object Object],[object Object],[object Object],[object Object]

Creating a Cluster ,[object Object],[object Object],2. Place objects inside the shell

Cluster Functions ,[object Object],[object Object],Bundle (Terminal labels reflect data type) Bundle By Name

Cluster Functions Unbundle Unbundle By Name Unbundled cluster in the diagram

Error Clusters ,[object Object],[object Object],[object Object],[object Object]

Error Handling Techniques ,[object Object],[object Object],[object Object],[object Object],error clusters

Section VIII - Case & Sequence Structures, Formula Nodes

Case Structures ,[object Object],[object Object],[object Object],[object Object]

Exercise 6 – Error Clusters & Handling

Sequence Structures ,[object Object],[object Object],[object Object]

Formula Nodes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Note semicolon

Section IX – Printing & Documentation ,[object Object],[object Object],[object Object],[object Object]

Printing ,[object Object],[object Object],[object Object],[object Object],[object Object]

Documenting VIs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Section XI – Remote Front Panels ,[object Object],[object Object],[object Object],[object Object],[object Object]

Remote Panel Web Publishing Tool ,[object Object],[object Object],[object Object]

Remote Front Panels - Resources ,[object Object],[object Object],[object Object],[object Object]

Where Do I Go From Here? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Labview Introduction

Recommandé

Recommandé

Contenu connexe

Tendances

Tendances (20)

En vedette

En vedette (18)

Similaire à Labview Introduction

Similaire à Labview Introduction (20)

Dernier

Dernier (20)

Labview Introduction