OPC UA (Unified Architecture) represents the OPC Foundation’s most recent set of specifications for Process Control and Automation system interconnectivity. This paper explains OPC UA from the perspective of the organization that will benefit from the connectivity, in other words: the End User.
OPC is open connectivity in industrial automation and the enterprise systems that support industry. Interoperability is assured through the creation and maintenance of open standards specifications. There are currently seven standards specifications completed or in development.
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