Programmable Logic Controllers: Principles and Applications (often found in its various editions, such as the 5th Edition) by John W. Webb and Ronald A. Reis is a seminal textbook in the field of industrial automation. It serves as a bridge between theoretical electrical engineering and practical technician-level application.
As you likely noticed, the last edition of this book is from 2002. The keyword "upd" in your search suggests you're looking for an update, which is crucial because PLC technology has evolved considerably in over two decades.
: A low-level, text-based language resembling assembly language. (Deprecated in some newer standards but still found in older systems).
The book provides a thorough explanation of PLC principles, including their history, hardware components, and programming. It covers the basics of PLCs, making it suitable for beginners, while also delving into advanced topics for more experienced readers. It serves as a bridge between theoretical electrical
Make sure to verify the edition and publication date before making a purchase.
A PLC replaces physical wiring with internal software logic. The core principles of a PLC involve:
Platforms such as ResearchGate or Internet Archive often host older editions or supplementary study guides uploaded for educational purposes. Industrial Programming Languages
Changing a production line required physical rewiring.
Updates the state of connected output devices based on the program results.
Stores the user-created control logic (e.g., ladder logic diagrams) and data tables containing the statuses of inputs, outputs, timers, and counters. 3. Input/Output (I/O) Modules If a process needs to change
The introduction of the PLC solved these issues by replacing physical wiring with software logic. If a process needs to change, an engineer simply updates the program code rather than rewiring hardware. Core Hardware Architecture of a PLC
The CPU transfers the calculated results from the Output Image Table to the physical output terminals, activating devices like motors, solenoids, or indicator lights. 3. Industrial Programming Languages
