Book Image

Industrial Automation from Scratch

By : Olushola Akande
Book Image

Industrial Automation from Scratch

By: Olushola Akande

Overview of this book

Industrial automation has become a popular solution for various industries looking to reduce manual labor inputs and costs by automating processes. This book helps you discover the abilities necessary for excelling in this field. The book starts with the basics of industrial automation before progressing to the application of switches, sensors, actuators, and motors, and a direct on-line (DOL) starter and its components, such as circuit breakers, contactors, and overload relay. Next, you'll explore VFDs, their parameter settings, and how they can be wired and programmed for induction motor control. As you advance, you'll learn the wiring and programming of major industrial automation tools – PLCs, HMIs, and SCADA. You’ll also get to grips with process control and measurements (temperature, pressure, level, and flow), along with analog signal processing with hands-on experience in connecting a 4–20 mA transmitter to a PLC. The concluding chapters will help you grasp various industrial network protocols such as FOUNDATION Fieldbus, Modbus, PROFIBUS, PROFINET, and HART, as well as emerging trends in manufacturing (Industry 4.0) and its empowering technologies (such as IoT, AI, and robotics). By the end of this book, you’ll have gained a practical understanding of industrial automation concepts for machine automation and control.
Table of Contents (21 chapters)
1
Part 1: Learning the Concepts and Skills Required to Get Started
8
Part 2: Understanding PLC, HMI, and SCADA
14
Part 3: Process Control, Industrial Network, and Smart Factory

Understanding the basics of LD

LD is an easy-to-learn programing language for creating control programs in PLCs to automate or control machines in industries.

In Chapter 1, Introduction to Industrial Automation, it was mentioned that prior to the introduction of PLCs, there was automation but through the use of relays, timers, contactors, and so on. These were hardwired together to perform the required control or automation task. Relay logic circuits were used when designing such control and were also used for troubleshooting the system.

A relay logic circuit is an electrical circuit or drawing showing symbols of components, such as relays, switches, timers, and contactors, and their connections for the desired control or automation task. The circuit usually consists of two vertical lines (rails), one on the extreme left (supply voltage potential, live or positive) and the other on the right (zero potential, neutral or negative). One or several horizontal lines in a relay logic...