Programmable Logic Controllers—Hardware and Programming is an introductory text that
explores many aspects of PLCs in an easy-to-understand manner. The key concepts of PLCs are
discussed using a comprehensive approach to enhance learning. The text organization begins
with basic concepts and progresses to system level applications. Applications, testing proce-
dures, and operational aspects of PLC equipment and systems are discussed. This textbook
emphasizes the PLC’s practical use in industry.
The programmable logic controller was first introduced in the automotive industry in the
late sixties. Today, the approximate annual sales of PLCs in the world are close to five billion
dollars. PLC sales with installation and programming are an industry with close to fifty bil-
lion dollars annually. Knowledge of selecting, wiring, and programming PLCs is required of
industrial programmers and maintenance personnel.
This textbook describes the most common programmable logic controller functions and
provides examples using the Allen-Bradley Small Logic Controller (SLC 500) series. This text-
book describes PLCs and their use in process and industrial control systems. PLC theory and
PLC selection for various applications are explained. PLC wiring and programming are also
covered with numerous examples.
Max Rabiee
About the Author
Max Rabiee earned his Ph.D. in electrical engineering from the University of Kentucky.
He has taught electrical engineering (EE), and electrical/computer engineering technology
(ECET) courses for over 20 years. Dr. Rabiee is a registered professional engineer (since 1988)
who worked as a control engineer for several years. He was a senior electrical engineer for over
four years in charge of medium and large industrial control projects.
Dr. Rabiee is a member of the American Society of Engineering Education (ASEE), the
Institute of Electrical and Electronics Engineers (IEEE), the National Association of Industrial
Technology (NAIT), the Eta Kappa Nu Electrical Engineering Honor Society, and the Tau Beta
Pi Engineering Honor Society.
Introduction
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