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| Emerson introduces Alarm Analysis tool Emerson Process Management introduced an Alarm Analysis tool designed for its Ovation expert control system. The Ovation system is a component of Emerson's PlantWeb digital architecture that delivers process and equipment diagnostics data over digital buses to improve plant operations and streamline maintenance activities. Proliferation of alarms can make it difficult for operators to distinguish between critical events that require intervention, and nuisance alarms. Emerson's Alarm Analysis package examines alarm data collected by the Ovation historian, providing the user with information necessary to minimize unnecessary alarms. This, in turn, enables plant operators to more effectively address real, high-priority issues and focus on actionable items. The user-friendly tool can be used online or offline. Tailored specifically for the Ovation system, the package allows users to sort, filter and analyze alarm information by a number of variables, including point names, descriptions, plant areas, time ranges, and types of alarm. Data can also be summarized according to alarm display, alarm priority, alarm rate and frequency. The Alarm Analysis tool offers various statistical analysis functions, including operator response analysis, plant upset analysis, as well as auto-correlation analysis, which considers the causal relationship between alarms, providing additional valuable insight for optimizing the generation and reporting of alarms. Based on the analysis, engineers can make appropriate changes, such as adjusting alarm limits to minimize chattering alarms, or adding cut-out logic to eliminate alarms related to equipment that has been out of service. write your comments about the article :: © 2006 Construction News :: home page |