Learn LabVIEW Graphical Programming from Scratch with Gary Johnson's Book (PDF Download)
LabVIEW Graphical Programming by Gary Johnson: A Comprehensive Guide
If you are interested in learning how to use LabVIEW, a graphical programming language that allows you to create applications for data acquisition, analysis, control, simulation, and more, then you might want to check out the book LabVIEW Graphical Programming by Gary Johnson. In this article, we will give you an overview of what LabVIEW is, who Gary Johnson is, and what the book covers. We will also summarize each chapter of the book and highlight some of the key features and benefits of LabVIEW. By the end of this article, you will have a better understanding of what LabVIEW can do for you and how you can get started with it.
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Introduction
What is LabVIEW?
LabVIEW stands for Laboratory Virtual Instrument Engineering Workbench. It is a graphical programming language that uses icons and wires to represent data flow and logic. Unlike traditional text-based programming languages, LabVIEW allows you to create programs visually by connecting graphical elements called virtual instruments (VIs). Each VI has a front panel that displays the user interface and a block diagram that contains the code. You can use LabVIEW to create standalone applications or integrate them with other software or hardware devices.
Who is Gary Johnson?
Gary Johnson is a senior software engineer at National Instruments (NI), the company that develops LabVIEW. He has over 20 years of experience in using LabVIEW for various applications, such as robotics, automation, measurement, testing, and education. He is also a certified LabVIEW developer and instructor. He has written several books on LabVIEW, including LabVIEW Graphical Programming, which is now in its fourth edition.
What is the book about?
LabVIEW Graphical Programming by Gary Johnson is a comprehensive guide that covers everything you need to know about LabVIEW, from the basics to the advanced topics. The book is divided into six chapters, each focusing on a different aspect of LabVIEW. The book also includes examples, exercises, tips, tricks, and best practices that will help you master LabVIEW quickly and easily. The book is suitable for beginners who want to learn LabVIEW from scratch, as well as intermediate or advanced users who want to improve their skills or learn new features.
Chapter 1: Getting Started with LabVIEW
Installing LabVIEW
The first step to use LabVIEW is to install it on your computer. You can download LabVIEW from the NI website or use the installation CD that comes with the book. The book provides detailed instructions on how to install LabVIEW on Windows, Mac, or Linux platforms. You can also choose to install additional modules or toolkits that extend the functionality of LabVIEW, such as the MathScript RT Module, the Vision Development Module, or the Control Design and Simulation Module.
Exploring the LabVIEW Environment
Once you have installed LabVIEW, you can launch it and explore its environment. The book introduces you to the main components of the LabVIEW environment, such as the Getting Started window, the Project Explorer window, the Front Panel window, the Block Diagram window, the Controls Palette, the Functions Palette, the Tools Palette, and the Help window. You will learn how to navigate through these windows and use them to create and manage your VIs.
Creating Your First VI
The best way to learn LabVIEW is to create your own VIs and run them. The book guides you through the process of creating your first VI, which is a simple calculator that can perform addition, subtraction, multiplication, and division. You will learn how to create and edit the front panel and the block diagram, how to use controls and indicators, how to wire data and logic, how to run and test your VI, and how to save and document your VI.
Chapter 2: Data Types and Structures
Numeric Data Types
One of the most common data types in LabVIEW is numeric data, which represents numbers. LabVIEW supports various numeric data types, such as integers, floating-point numbers, complex numbers, fixed-point numbers, and time stamps. You will learn how to use these data types in your VIs, how to convert between them, how to perform arithmetic operations on them, and how to handle overflow and rounding errors.
Boolean Data Types
Another common data type in LabVIEW is Boolean data, which represents true or false values. You can use Boolean data to control the flow of your program or to indicate the status of your system. You will learn how to use Boolean controls and indicators, such as switches, LEDs, buttons, and checkboxes. You will also learn how to perform logical operations on Boolean data, such as AND, OR, NOT, XOR, etc.
String Data Types
A string is a sequence of characters that can represent text or binary data. You can use strings to display messages, store filenames, communicate with other devices or software, etc. You will learn how to use string controls and indicators, such as text boxes, labels, tables, graphs, etc. You will also learn how to manipulate strings using various functions, such as concatenation, substring extraction, search and replace, formatting, parsing, etc.
Arrays and Clusters
An array is a collection of elements of the same data type that are indexed by a numeric value. A cluster is a collection of elements of different data types that are grouped together as a single entity. You can use arrays and clusters to store and organize large amounts of data in your VIs. You will learn how to create and edit arrays and clusters using various functions and tools. You will also learn how to access and modify individual elements or subarrays or subclusters using indexing or bundling functions.
Chapter 3: Programming Structures and Techniques
Loops and Conditional Statements
Loops are programming structures that allow you to execute a set of code repeatedly until a certain condition is met. Conditional statements are programming structures that allow you to execute a set of code only if a certain condition is true or false. You can use loops and conditional statements to control the execution flow of your VIs. You will learn how to use various types of loops in LabVIEW, such as while loops, for loops, do-while loops, timed loops, etc. You will also learn how to use various types of conditional statements in LabVIEW, such as if-then-else statements, select statements, case structures, etc.
Shift Registers and Feedback Nodes
Shift registers and feedback nodes are programming techniques that allow you to store and access previous values of data within a loop. You can use shift registers and feedback nodes to implement memory or feedback mechanisms in your VIs. You will learn how to create and use shift registers and feedback nodes in different types of loops. You will also learn how to initialize, clear, or resize shift registers and feedback nodes.
Case and Event Structures
structures that allow you to execute different sets of code depending on the value of a selector. Event structures are programming structures that allow you to execute a set of code in response to a user or system event, such as a mouse click, a keyboard press, a timer expiration, etc. You can use case and event structures to create interactive and dynamic user interfaces in your VIs. You will learn how to create and use case and event structures in LabVIEW. You will also learn how to handle multiple cases or events using subdiagrams, priorities, queues, etc.
SubVIs and Modular Programming
SubVIs are VIs that are used within another VI. Modular programming is a programming technique that involves breaking down a large and complex program into smaller and simpler subprograms that can be reused and maintained easily. You can use subVIs and modular programming to create more organized and efficient VIs. You will learn how to create and use subVIs in LabVIEW. You will also learn how to pass data between subVIs using connectors, terminals, controls, and indicators. You will also learn how to document and test your subVIs using icons, descriptions, help files, probes, etc.
Chapter 4: Graphs, Charts, and User Interfaces
Graphs and Charts
Graphs and charts are graphical elements that allow you to display data in various forms, such as lines, bars, pies, histograms, etc. You can use graphs and charts to visualize and analyze your data in your VIs. You will learn how to create and use graphs and charts in LabVIEW. You will also learn how to customize the appearance and behavior of graphs and charts using properties, methods, events, cursors, annotations, etc.
Controls and Indicators
Controls and indicators are graphical elements that allow you to interact with your VIs or display the results of your VIs. Controls are inputs that allow you to enter data or change settings in your VIs. Indicators are outputs that allow you to view data or status information from your VIs. You will learn how to create and use controls and indicators in LabVIEW. You will also learn how to customize the appearance and behavior of controls and indicators using properties, methods, events, styles, colors, fonts, etc.
Property Nodes and Invoke Nodes
Property nodes and invoke nodes are functions that allow you to access or modify the properties or methods of any graphical element in your VIs. Properties are attributes that define the appearance or behavior of an element. Methods are actions that an element can perform. You can use property nodes and invoke nodes to create dynamic and interactive user interfaces in your VIs. You will learn how to use property nodes and invoke nodes in LabVIEW. You will also learn how to access or modify properties or methods programmatically or interactively using local or global variables, references, wires, etc.
Menus and Toolbars
Menus and toolbars are graphical elements that allow you to provide commands or options for your VIs. Menus are lists of items that appear when you click on a menu bar or a pop-up menu. Toolbars are rows of buttons that appear on the top or bottom of a window. You can use menus and toolbars to enhance the functionality and usability of your VIs. You will learn how to create and use menus and toolbars in LabVIEW. You will also learn how to customize the appearance and behavior of menus and toolbars using properties, methods, events, shortcuts, icons, etc.
Chapter 5: File I/O and Data Acquisition
File I/O Functions
File I/O functions are functions that allow you to read from or write to files on your computer or other devices. Files can store various types of data, such as text, numbers, images, sounds, etc. You can use file I/O functions to save or load data in your VIs. You will learn how to use file I/O functions in LabVIEW. You will also learn how to choose the appropriate file format and file path for your data.
Binary, Text, and Spreadsheet Files
Binary files are files that store data in binary format, which is the native format of LabVIEW. Text files are files that store data in text format, which is the human-readable format of LabVIEW. Spreadsheet files are files that store data in tabular format, which is the common format for data analysis and presentation. You will learn how to read from or write to binary, text, and spreadsheet files in LabVIEW. You will also learn how to convert between different file formats using various functions and tools.
Data Acquisition Devices and VIs
Data acquisition devices are hardware devices that allow you to measure or generate physical signals, such as voltage, current, temperature, pressure, sound, etc. Data acquisition VIs are software VIs that allow you to communicate with data acquisition devices using various protocols, such as GPIB, USB, Ethernet, etc. You can use data acquisition devices and VIs to acquire or output data in your VIs. You will learn how to use data acquisition devices and VIs in LabVIEW. You will also learn how to configure, calibrate, and test your data acquisition devices and VIs using various functions and tools.
Analog and Digital Signals
Analog signals are continuous signals that vary smoothly over time. Digital signals are discrete signals that have only two states, such as on or off, high or low, 1 or 0, etc. You can use analog or digital signals to represent physical phenomena or information in your VIs. You will learn how to use analog and digital signals in LabVIEW. You will also learn how to convert between analog and digital signals using various functions and tools.
Chapter 6: Advanced Topics and Applications
Error Handling and Debugging
Error handling and debugging are programming techniques that allow you to detect, prevent, or correct errors or bugs in your VIs. Errors or bugs are problems that cause your VIs to behave incorrectly or unexpectedly. You can use error handling and debugging techniques to create more reliable and robust VIs. You will learn how to use error handling and debugging techniques in LabVIEW. You will also learn how to use various functions and tools for error handling and debugging, such as error clusters, error handlers, breakpoints, probes, highlight execution, step into/over/out, etc.
State Machines and Queues
State machines and queues are programming techniques that allow you to create more complex and flexible VIs. State machines are programming structures that allow you to execute different sets of code depending on the current state of your system. Queues are data structures that allow you to store and retrieve data in a first-in first-out (FIFO) order. You can use state machines and queues to create VIs that can handle multiple tasks, events, or scenarios. You will learn how to use state machines and queues in LabVIEW. You will also learn how to create and use state transition diagrams, state indicators, state variables, queue operations, queue references, etc.
Timed Loops and Parallel Programming
Timed loops and parallel programming are programming techniques that allow you to create more efficient and responsive VIs. Timed loops are programming structures that allow you to execute a set of code at a specified rate or interval. Parallel programming is a programming technique that allows you to execute multiple sets of code simultaneously or concurrently. You can use timed loops and parallel programming to create VIs that can perform real-time or multitasking operations. You will learn how to use timed loops and parallel programming in LabVIEW. You will also learn how to create and use timed structures, timing sources, synchronization methods, parallel loops, multicore processors, etc.
Instrument Control and Communication Protocols
Instrument control and communication protocols are programming techniques that allow you to communicate with external instruments or devices using your VIs. Instruments or devices are hardware components that can perform various functions, such as measurement, generation, control, simulation, etc. Communication protocols are rules or standards that define how data is transmitted or received between instruments or devices. You can use instrument control and communication protocols to create VIs that can interface with various instruments or devices. You will learn how to use instrument control and communication protocols in LabVIEW. You will also learn how to use various functions and tools for instrument control and communication protocols, such as instrument drivers, VISA, serial port, TCP/IP, UDP, Modbus, etc.
Conclusion
powerful and versatile graphical programming language that allows you to create applications for data acquisition, analysis, control, simulation, and more. LabVIEW Graphical Programming by Gary Johnson is a comprehensive and practical guide that covers everything you need to know about LabVIEW, from the basics to the advanced topics. Whether you are a beginner who wants to learn LabVIEW from scratch, or an intermediate or advanced user who wants to improve your skills or learn new features, this book is for you. You can order the book from Amazon or download the PDF version from the link below.
FAQs
Here are some frequently asked questions about LabVIEW and the book LabVIEW Graphical Programming by Gary Johnson.
Q: What are the prerequisites for learning LabVIEW?
A: You do not need any prior programming experience or knowledge to learn LabVIEW. However, it would be helpful if you have some basic understanding of mathematics, physics, and engineering concepts.
Q: What are the benefits of learning LabVIEW?
A: Learning LabVIEW can help you to:
Create applications for various domains and industries, such as science, engineering, education, research, etc.
Solve complex problems using graphical programming and data flow logic.
Integrate your applications with various hardware and software devices and platforms.
Improve your productivity and efficiency using modular programming and built-in functions and tools.
Enhance your creativity and innovation using graphical user interfaces and dynamic data visualization.
Q: How long does it take to learn LabVIEW?
A: The time it takes to learn LabVIEW depends on your learning style, pace, and goals. However, you can expect to learn the basics of LabVIEW in a few hours or days, and master the advanced topics in a few weeks or months. The book LabVIEW Graphical Programming by Gary Johnson can help you to learn LabVIEW faster and easier by providing clear explanations, examples, exercises, tips, tricks, and best practices.
Q: Where can I find more resources or support for learning LabVIEW?
A: You can find more resources or support for learning LabVIEW from the following sources:
The NI website (https://www.ni.com/en-us.html), which provides tutorials, videos, webinars, courses, forums, blogs, etc.
The LabVIEW Wiki (https://labviewwiki.org/wiki/Main_Page), which provides articles, guides, tips, tricks, etc.
The LabVIEW Community (https://forums.ni.com/t5/LabVIEW/ct-p/170), which provides forums, groups, events, etc.
The LabVIEW Reddit (https://www.reddit.com/r/LabVIEW/), which provides discussions, questions, answers, etc.
The LabVIEW Stack Overflow (https://stackoverflow.com/questions/tagged/labview), which provides questions, answers, etc.
Q: How can I contact Gary Johnson or provide feedback on the book?
A: You can contact Gary Johnson or provide feedback on the book by sending an email to gary.johnson@ni.com or leaving a comment on the book's website (https://www.labviewgraphicalprogramming.com/). 71b2f0854b