Overview

OPC is the interoperability standard for secure and reliable data exchange in the industrial automation space, as well as other industries. The OPC standard is a series of specifications that define the interface between clients and servers, as well as servers and servers, including access to real-time data, monitoring of alarms and events, access to historical data and other applications.

The OPC standard, initially restricted to the Windows operating system, derives its acronym from OLE (object linking and embedding) for Process Control. These specifications are now known as OPC Classic. The OPC Unified Architecture (UA) is a platform-independent, service-oriented architecture that integrates the functionality of the individual OPC Classic specifications into an extensible framework.

The Opc UA Driver is the Niagara implementation of this service-oriented architecture.