Addresses hardware, software, and troubleshooting. Core Principles Covered

Version control and backups

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.

The book begins where automation began: replacing electromechanical relays. Webb explains the "hardwired logic" versus "stored program" concept, teaching that a PLC is essentially a computer optimized for harsh factory floors.

Implement watchdogs and heartbeat signals

Emphasizes real-world industrial scenarios.

: Expert reviews from Wiley Online Library note that Webb occasionally uses "PC" to refer to a Programmable Controller, which can be confused with a Personal Computer.

The strength of Webb’s text lies in its systematic approach to programming.

Embrace clear naming and documentation

Use simulation and offline testing

For students and professionals, securing a copy of this text—often referenced in digital formats—is a crucial step toward mastering industrial automation.

The author also covers software components, including:

The book also includes covering PLC manufacturers, operation simulation, circuit symbols, instruction codes, a glossary, and a bibliography.