LabVIEW Hands-On Seminar An Introductory Look at Graphical - - PowerPoint PPT Presentation

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LabVIEW™ Hands-On Seminar

An Introductory Look at Graphical Development

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Agenda

• Overview
• Data acquisition with LabVIEW
• Instrumentation with LabVIEW
• The LabVIEW platform
• LabVIEW beyond the seminar
• Appendix topics

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Computer-Based Measurement and Automation

Hardware and Driver Software Motion Control Process

• r

Unit under Test PXI Application Software Corporate Network Image Acquisition VXI DAQ GPIB Serial

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Measurement and Automation Software Platform

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LabVIEW Graphical Development

• Wires and icons
• Compiled graphical development environment
• Development time reduction of 4 to 10X
• Complete programming environment

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Programming Paradigm

• Front panel

– Graphical user interface – Controls and indicators

• Block diagram

– Source code window – Rapid code development – Self-documenting

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Dataflow Programming

• Wires pass data (nonlinear)
• Data flows from sources to sinks
• Diagram can execute multiple operations in parallel

Plot Save RMS Execute in parallel

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Hierarchy of VIs

• Modular design
• Reusable building blocks
• Hierarchal system

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Multiplatform Compatibility

Migrate Applications Transparently between Platforms

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Explore LabVIEW

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Data Acquisition

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Data Acquisition Basics

• NI-DAQ driver software
• Measurement devices for:

– Analog and digital I/O – Counter/timers – Networked applications – Plug-in or industrial systems

• Signal conditioning through

SCXI or built-in

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DAQ Host Platforms

Desktop PXI/SCXI PXI VXI Laptop FieldPoint

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Why Desktops?

• Advantages

– Latest technologies – Inexpensive – Readily available

• Disadvantages

– Rack-mounting difficult – Not rugged – Few expansion slots

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Why PXI/CompactPCI?

PXI PXI/SCXI

• Advantages

– Well-suited for rack-mounting – Rugged – More slots – Backplane timing and triggering – Embedded or external control – Same software as desktops – DAQ and SCXI in same chassis

• Disadvantages

– Cost compared to desktop

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Scalable DAQ Solutions

NI provides solutions for all your development environments.

Laptop

PCMCIA PCI, ISA

Desktop

PXI VXI

Network

Ethernet

Industrial Workstation

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DAQ Solution Wizard

Common and Custom Applications

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Measurement & Automation Explorer

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Explore LabVIEW

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Instrumentation

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Instrument Driver

Instrument Drivers and Application Software

Application Software (Program) Instrument

• LabVIEW
• Measurement Studio
• Visual C/C++
• Visual Basic…

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• High performance

– State-caching

• High productivity

– Simulation

• Lower maintenance cost

– Instrument interchangeability

• Two-tier architecture

– Specific driver (one instrument) – Class driver (any instrument)

Interchangeable Virtual Instruments

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Technical Enterprise

PCI GPIB Serial I/O USB 1394

N N N N

Wireless

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Technical Enterprise

Measurement Nodes Information Management

Web Browsers Internet Data Analysis/Reporting Database

Wireless

IP Nodes - Ethernet

GPIB/Serial

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Distributed I/O PCI GPIB Serial I/O USB 1394

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Wireless PXI Real-Time

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Explore LabVIEW

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LabVIEW—Beyond the Seminar

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LabVIEW Benefits

• Rapid application development
• Tight integration between software and

hardware

• High-performance compiled execution
• Long-term compatibility
• Open development environment

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DISPLAY AND CONTROL

National Instruments Benefits

• Limited expansion
• Fixed functionality
• Fixed interface
• Network/Internet connectivity
• Customizable functionality
• Software defined interface

Vendor Defined User Defined

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Global Support and Services

• Support and Services

– ni.com/support

• NI Alliance Program

– ni.com/alliance

• Training

– ni.com/training

• Literature

– ni.com/library

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Training Services

• Fundamentals courses
• Advanced courses
• Technical Workshops
• Custom On-Site courses
• Austin, TX and Nationwide

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LabVIEW Fundamentals

• Learn the LV environment
• Understand and use key features
• Develop real applications with LV
• Develop high speed LV code
• Learn how to use LV to publish or

subscribe data

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LabVIEW Advanced Performance & Communication

• Optimize your LabVIEW code
• Interface LabVIEW to PC networks
• Manage memory usage for large applications
• Synchronize VI execution
• Control remote applications
• Communicate with external APIs

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Questions or Comments? ni.com/labview

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Appendix A: The LabVIEW Platform

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LabVIEW Development Systems

• Base Package
• Full Development System
• Professional Development System
• Software Subscription Program

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LabVIEW Real-Time Module

• Real-time data

acquisition and control

• Dedicated processor for

reliable performance

• Scalable hardware

targets for custom solutions

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Ideal tool for monitoring applications

• Built-in tools for:

– Tag management – Alarm and Event management – Distributed logging – Trending – Easy networking – Security

• Event-driven architecture
• OPC connectivity

LabVIEW Datalogging and Supervisory Control Module

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Machine Vision and Image Processing

• Machine vision and

scientific imaging

– Inspection – Gauging – Pattern matching – Color matching – Blob analysis and morphology

• Vision Builder
• Optical character recognition

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Motion Control

• Easy-to-use

– Configuration – VIs

• Powerful feature set
• Easy integration

– Data acquisition – Vision

• Single and multi-axis
• Servo and stepper motors

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Application Builder

• Generates executables or shared libraries (DLLs)
• Creates installers for distribution
• Installs directly into LabVIEW environment
• Royalty-free

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Internet Toolkit

• E-mail
• FTP
• CGI
• Telnet

E-mail FTP/Telnet Web

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SPC Toolkit

• Control charts
• Process statistics
• Pareto analysis

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Database Connectivity Toolset

• Insert, select data from OLE DB, ODBC databases

– Microsoft Access, SQL Server, Oracle, etc.

• Create, drop tables
• Save records in XML format
• Execute SQL queries

– Immediate, parameterized

• Execute stored procedures
• Accept, reject multiple
• perations (transactions)

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• Create Microsoft Word, Excel reports

– Text, tables, graphs, pictures

• Control formatting

– Fonts, colors, alignment, etc.

• Populate templates
• E-mail reports
• Run macros

Report Generation Toolkit for Microsoft Office

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PID Control Toolset

• PID Control

– Autotuning – Gain scheduling

• Fuzzy Logic

– Control strategies – Decision making

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System Simulation & Design Toolset

• Common control

elements

• Hardware integration
• Different system

representations

• Dynamic system

response

• Bode, Nyquist, and

root-locus plots

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Signal Processing Toolset

• Joint Time-Frequency

Analysis

• Super-resolution

spectral analysis

• Wavelet and filter

bank design

• Digital filter design

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Sound & Vibration Toolset

• Sound/Vibration level measurement

– Conventional sound/vibration measurement technique

• Fractional Octave analysis

– Offers ANSI/IEC standard compliant measurement – Provides useful analysis because it is similar to how people perceive sound

• Measurement oriented

– Units – Frequency-domain calibration

• Display

– Waterfall plot

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• Off-the-shelf,

customizable test executive

• Executes tests

written in most popular languages

• Automatic report

generation

– Text – HTML/XML – Database

TestStand

Config Mgmt Database SPC Reports Test Modules Test Management Services Measurement Services

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Comprehensive Software Subscription Program

• Development environments

– LabVIEW, Measurement Studio

• Add-on toolkits and accessories

– Database, Internet, Signal Processing…

• Application specific software modules

– TestStand, Datalogging and Supervisory Control Module, LabVIEW Real-Time Module

• Automatic quarterly software updates

Developer Suite