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The OPC specification was based on the OLE, COM, and DCOM technologies developed by Microsoft Corporation for the Microsoft Windows operating system family. The specification defined a standard set of objects, interfaces e.g. IDL and methods for use in process control and manufacturing automation applications to facilitate interoperability.
Optical proximity correction (OPC) is a photolithography enhancement technique commonly used to compensate for image errors due to diffraction or process effects. The need for OPC is seen mainly in the making of semiconductor devices and is due to the limitations of light to maintain the edge placement integrity of the original design, after ...
Various abbreviations used for this type of contract are LSTK for lump sum turn key, EPIC for engineering, procurement, installation & commissioning and EPCC for engineering, procurement, construction and commissioning. Use of EPIC is common, e.g., by FIDIC and most Persian Gulf countries. Use of LSTK is common in the Kingdom of Saudi Arabia.
P&IDs are originally drawn up at the design stage from a combination of process flow sheet data, the mechanical process equipment design, and the instrumentation engineering design. During the design stage, the diagram also provides the basis for the development of system control schemes, allowing for further safety and operational ...
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 ]
The standard has specified five mapping (IEC 61400-25-4) to communication protocol stacks in order to address the real wind power business needs for communication. The mappings specified in the part of IEC 61400-25 comprises a mapping to SOAP-based web services, OPC/XML-DA, IEC 61850-8-1 MMS, IEC 60870-5-104 and a mapping to DNP3.
Following is a list of well known types of advanced process control: Advanced regulatory control (ARC) refers to several proven advanced control techniques, such as override or adaptive gain (but in all cases, "regulating or feedback").
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.