The 4th and 5th editions are particularly valuable as they include timely updates on networking, HMI, and advanced programming languages. While the 5th edition remains the final installment of this specific author team, it's important to note that a separate book with the same title (ISBN: 978-0-8269-1396-8) exists, authored by and published by American Technical Publishers (ATP). This is a distinct, more modern textbook and not a direct continuation of the Webb/Reis series.
Why does a textbook first published in 1988 still matter? Three reasons stand out: The 4th and 5th editions are particularly valuable
While Webb's book is excellent, the field of PLC education is rich with other highly respected resources. Exploring them can provide a broader perspective. Why does a textbook first published in 1988 still matter
Programmable Logic Controllers: Principles and Applications by John W. Webb is a seminal text in the field of industrial electronics. It successfully demystifies the PLC by drawing parallels to relay logic—a technology most technicians already understand—before introducing the advanced capabilities of digital processors crucial for mastering ladder logic
You might wonder: If this book was written decades ago, is it still relevant for 2025’s Industry 4.0?
It prepares readers for the realities of the factory floor.
Programmable Logic Controllers: Principles and Applications by John W. Webb is a foundational text, crucial for mastering ladder logic, input/output (I/O) modules, and sequential function charts. The book provides clear principles of modular programming essential for building, debugging, and optimizing automated systems. A summary of the key technical concepts or assistance with specific ladder logic problems can be provided.