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OPC Unified Architecture (OPC UA) is a cross-platform, open-source, IEC62541 standard for data exchange from sensors to cloud applications developed by the OPC Foundation. Distinguishing characteristics are: [ 1 ]
UA can be implemented with Java, Microsoft .NET, or C, eliminating the need to use a Microsoft Windows platform of earlier OPC versions. UA combined the functionality of the existing OPC interfaces with new technologies such as XML and Web services to deliver higher level manufacturing execution system (MES) and enterprise resource planning ...
The OPC Data Access Specification is the first of a group of specifications known as the OPC Classic Specifications. [1]OPC Data Access is a group of client–server standards that provides specifications for communicating real-time data from data acquisition devices such as PLCs to display and interface devices like Human–Machine Interfaces (HMI), SCADA systems [2] and also ERP/MES systems. [3]
The OPC Foundation (Open Platform Communications, formerly Object Linking and Embedding for Process Control [1]) is an industry consortium that creates and maintains standards for open connectivity of industrial automation devices and systems, such as industrial control systems and process control generally.
OPC technology is based on client / server architecture. Therefore, an OPC client, such as a trending application or spreadsheet, can retrieve data from an OPC compliant data source, such as a historian, using OPC HDA. Similar to the OPC Data Access specification, OPC Historical Data Access also uses Microsoft's DCOM to transport data. DCOM ...
The OPC-UA Ignition module is an Eclipse Milo OPC server that supports modular drivers for PLCs and other devices and network connections. Before moving to Milo, the Ignition OPC-UA engine was the first 100% native Java OPC UA stack. [ 12 ]
The company is a pioneer of supporting interoperability standards among SCADA vendors, [4] and is a supporter of Open Source software and the OPC Foundation. The company was the first to implement a native Java OPC-UA stack in January 2010, [5] making its products 100% cross platform, which is rare for commercial SCADA vendors. [6]
OSADL is a member of OPC Foundation [2] which governs the OPC UA industrial automation standard, in which the lab is also involved. Preamble of the articles of incorporation of the cooperative [ edit ]