Book Image

Mastering PLC Programming

By : Mason White
Book Image

Mastering PLC Programming

By: Mason White

Overview of this book

Object-oriented programming (OOP) is a new feature of PLC programming that has taken the automation world by storm. This book provides you with the necessary skills to succeed in the modern automation programming environment. The book is designed in a way to take you through advanced topics such as OOP design, SOLID programming, the software development lifecycle (SDLC), library design, HMI development, general software engineering practices, and more. To hone your programming skills, each chapter has a simulated real-world project that’ll enable you to apply the skills you’ve learned. In all, this book not only covers complex PLC programming topics, but it also removes the financial barrier that comes with most books as all examples utilize free software. This means that to follow along, you DO NOT need to purchase any PLC hardware or software. By the end of this PLC book, you will have what it takes to create long-lasting codebases for any modern automation project.
Table of Contents (25 chapters)
1
Part 1 – An Introduction to Advanced PLC Programming
6
Part 2 – Modularity and Objects
10
Part 3 – Software Engineering for PLCs
14
Part 4 – HMIs and Alarms
19
Part 5 – Final Project and Thoughts

Project overview

Before we dive into building the project, it is important to understand what we are developing and why. For our final project, we are going to build an industrial oven. Industrial ovens are often used in the manufacturing process for various applications such as curing paint, baking in chemicals, drying parts, or any number of other applications.

Our simulated customer is requesting an oven system for drying metal fixtures after they come from being washed. The way the manufacturing process works is that once a part is washed, it is placed in the oven for a variable amount of time depending on the fixture so that all excess moisture can be burned off. We have to be careful because there are rubber O-rings in the fixtures that will melt if the O-rings experience temperatures above their rated limit. The customer will want to be able to dry different parts that will require different dry times, and each fixture will have an O-ring with a different temperature limit...