Plant data historians are moving beyond their traditional role as a tool for collecting and archiving data to better understand past plant performance, to becoming a powerful tool that can be used to improve real-time operations. With increased data throughput and higher data resolutions, historians have also become a foundation for plant asset management initiatives, thanks to new visibility and trending tools that can also be used to support energy management programs. Today’s historians also support techniques, such as complex event processing, which can analyze multiple streams of plant data in real time to identify and diagnose emerging problems before they disrupt the production process in the plant, or negatively affect smart grids or other distributed assets…

Source: Hydrocarbon Processing, Allen Avery, February 2011

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