We Wrote the Book on PID Loops — And the Code: Let’s Take the Mystery Out of the Math

We Wrote the Book on PID Loops — And the Code

Every controls engineer, technician, and plant operator eventually asks the same question:
“How does this PID loop actually work?”

Most books answer that with a bunch of theory, Greek letters, and academic detours.
This isn’t that book.

This is the one written by the people who’ve actually made it work—on real systems, in real plants, with real consequences. From breaking down the proportional, integral, and derivative terms in plain English, to writing the actual Structured Text code that runs it all, this book gives you what the manuals and factory blocks won’t.

You’ll learn:

• What the PID equation really means—and what it doesn’t.

• How to tune a loop using trial, error, and common sense.

• Why everything works better when it’s in percent.

• What’s going on inside that faceplate when your loop starts to drift.

• How to explain PID to the plant guy who just wants a big knob to turn.

Whether you’re just starting out or you’ve been winging it for years, this book will take the mystery out of the math—and give you the tools to control the process, not the other way around.