Chapter 15

OPC communications

Abstract

OPC communication, which is a client server technology used in most of the process automation systems, involves data exchange of the applications. The topic covers various technological aspects of the OPC, communication philosophy, models, and different types of standards available in OPC. Each of the types of the OPC are further discussed in detail so that the reader can apply this knowledge in the design and selection of the applications and systems from individual vendors for a one interconnected system meant for the overall automation of the plant as well to provide information for the management information systems. The key advantages and disadvantages of such systems are provided to help the selection ...

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