While the is a fantastic historical and foundational text, the industry is moving toward soft PLCs (CodeSys) and edge controllers . Nevertheless, recruiters still ask interview questions directly from Webb’s chapters on timer accuracy and seal-in circuits.
This comprehensive, 27-chapter structure (with some variation by edition) ensures that by the end of the book, a reader is not just familiar with PLC theory, but is equipped with the practical knowledge to design, program, and troubleshoot a real-world industrial control system.
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. While the is a fantastic historical and foundational
"Programmable Logic Controllers: Principles and Applications" by John W. Webb and Ronald A. Reis is a foundational text detailing the architecture, programming, and industrial applications of PLCs. The resource covers essential concepts like input/output systems, ladder logic, scan cycles, and safety, making it a definitive guide for automation engineers. Share public link
Throughout the PDF, Webb includes truth tables next to ladder rungs. For every logic example, he shows the given a specific combination of input states. This is invaluable for self-learners who cannot yet afford simulation software. A summary of the key technical concepts or
However, if your goal is to program a modern Siemens S7-1200 or Allen-Bradley CompactLogix with Ethernet/IP and motion control, pair Webb with a vendor-specific programming guide. Use Webb as your and the manufacturer’s manual as your syntax reference .
– The book is available through academic libraries (print and sometimes digital), university library portals , and paid platforms like Google Play Books, Amazon Kindle, and Pearson’s official site (when available). university library portals
: It begins with basic hardware and the evolution of PLCs from traditional relay systems.
⭐ ⭐ 2/5 for current industrial practice