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 principles apply to all PLCs, the book notably utilizes the instruction set as its primary teaching vehicle, given that manufacturer's dominance in the North American market.
The author then delves into the programming languages used in PLCs, including Ladder Logic, Function Block Diagram (FBD), and Sequential Function Chart (SFC). He provides numerous examples and illustrations to help readers understand the syntax and semantics of each language. A summary of the key technical concepts or
The book is organized into eight sections, comprising 28 chapters. The table of contents below is based on the 4th edition:
The first section of the book establishes a solid foundation in the principles governing PLC operation. 1. Introduction to PLC Systems He provides numerous examples and illustrations to help
Connect the PLC to sensors, switches, motors, and solenoids. 3. Relay Logic and PLC Programming
: It moves from fundamental logic to intermediate and advanced functions, including jump functions , stacking functions , and newer methods of PID programming . including jump functions
A: Yes. Level I of the CCST exam heavily relies on the fundamentals taught in Webb’s Chapters 1 through 8.
The textbook has been published in multiple editions, each updated to reflect technological advancements:
Logging and diagnostics