Modbus: The Everyman's Guide to Modbus

not a great book, I don't think the author is a natural writer, but then the other book on MODBUS didn't have great reviews and this book is cheaper. The most interesting stuff is regarding the products available from the author's company. There aren't many pages.

bien, buen libro me indica la historia y aplicaciones de modbus y despues nos remite a una pagina con mas informacion, solo le falto la programacion en si del protocolo

Ce livre ne parle que de ce qui est connu et disponible sur internet en plus complet et gratuitement. Ce livre est en réalité une publicité pour les produits de la société de son auteur.

Content is as expected. But the print is uneven through out the pages. Suspected copied book in India.

This is an excellent tutorial of Modbus - and a great reference too! Before reading the book, I was experienced with using Modbus or thought so. When I had success getting devices to communicate, it was honestly more about luck. I had many more products, some PLCs and thermostats for example that no matter how much time invested, Modbus communication never worked. The book explains the structure of Modbus and small variances that can exist among product types. That solved my issues. Now everything Modbus is quickly implemented and is as simple to deploy as many have claimed. Mr. Rinaldi, how about a book about MQTT?

Well laid out, excellent layout of explanations .