Address Space Concepts |
To integrate diverse systems we must make them interoperable, but it means necessity of information exchange.
Because information is an abstract notion, it cannot be processed by a physical machine. Therefore it has to be represented as computer centric data, which means that representation is:
Unique – to be mutually understandable
Platform independent – to be processed by diverse systems
Transferable – to be transported between remote parties
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Computer centric representation means that the data is save-able in a binary random access memory. |
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Transferable representation means that the data is a stream of bits. |
This section describes the concept of Address Space that allows representing the underlying real-time process in a unique and platform independent means. Section Service Sets provides more detail about services responsible for data transfer and management.
In This SectionThe primary objective of the OPC Unified Architecture is to provide a standard that allows servers to represent real-time process state and its environment to clients, in a unique and platform independent way. The OPC Unified Architecture Object Model has been designed to meet this objective.
Objects and their components are represented in the Address Space as a set of nodes described by attributes and interconnected by references.
See Also