- Paperback: 339 pages
- Publisher: Springer; Softcover reprint of hardcover 1st ed. 2009 edition (November 10, 2010)
- Language: English
- ISBN-10: 3642088422
- ISBN-13: 978-3642088421
- Product Dimensions: 6.1 x 0.8 x 9.2 inches
- Shipping Weight: 1.4 pounds (View shipping rates and policies)
- Average Customer Review: 8 customer reviews
- Amazon Best Sellers Rank: #1,887,370 in Books (See Top 100 in Books)
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OPC Unified Architecture Softcover reprint of hardcover 1st ed. 2009 Edition
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From the Back Cover
The OPC Foundation defines standards for online data exchange between automation systems. They address access to current data (OPC DA), alarms and events (OPC A&E) and historical data (OPC HDA). Those standards are successfully applied in industrial automation.
The new OPC Unified Architecture (OPC UA) unifies the existing standards and brings them to state-of-the-art technology using service-oriented architecture (SOA). Main advantages of the new standard are:
- Platform-independent technology allows the deployment of OPC UA beyond current OPC applications only running on Windows-based PC systems. OPC UA can also run on embedded systems as well as Linux / UNIX based enterprise systems.
- The provided information can be generically modeled and therefore arbitrary information models can be provided using OPC UA.
This book gives an easy to understand introduction into OPC UA and explains the concepts of the standard and other relevant topics that are not directly addressed by the standard.
Top customer reviews
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The book only covers the concepts. There are no details, in fact there are insufficient details to even be able to troubleshoot a UA system effectively, let alone implement one. Of course this book is intended as a handbook, not a detailed spec, so to a limited extent that is acceptable.
On the other hand it is written and laid out as a specification, and is just as unreadable.
The official OPC UA specifications are not generally available and I am not able to see them. However I can't help get the feeling that if I could see them there would be a haunting familiarity. I get the impression that the book has been written by taking the specifications and changing any detailed information into vague and general statements. Then extra info, such as historical info or other background stuff,has been thrown in for good measure.
The book appears to list the concepts in a linear manner, rather than explain the big issue in a drill down manner, as a handbook should do.
The quality of the English is understandable, but very poor. This is really a reflection on the translation rather than the original text, as I believe the original was German.
I find it difficult to recommend this book, and the high price tag adds insult to injury. On the other hand there does not appear to be any alternatives, and perhaps the real problem is that there is simply insufficient market to justify a book written by a professional author.
From the Preface: The [OPC UA] specification primarily defines how to do things and to a lesser extent explains why it was designed that way. This is the way specifications have to be written to be widely applied by many developers and to guarantee interoperability between different applications. As a result, the OPC UA specification is hard to read for someone new to OPC UA. This is also true for other specifications such as SQL or UML. With this book, we want to fill this gap and provide an easy to understand introduction to OPC UA. We will not provide the same detail as the specification, but rather introduce and explain the main concepts of OPC UA.
--> The book has delivered on this.
From the Acknowledgments: Thanks to [...] the native speakers who greatly improved our English.
--> The grammar is annoying at times, especially when you need to read a sentence twice to understand it.
Do not be frightened if you are at the middle of the book and things are still a little blurry, as things will start to clear out. Maybe the only thing that is a little troublesom is the organization of the chapters. The author shows a little bit of architecture in the beginning but jumps to modelling and services/transport. Only at the last quarter of the book more architecture is explained, I think that he should have kept more architecture in the beginning to make a more fluent tranition from general specifications to detail.