Economic justification for alarm system reengineering

Overview:

Restoring your alarm system to a useful state can eliminate duplicate and nuisance alarms, and ensure that the necessary alarms are properly prioritized and documented. This White Paper presents a model for justifying an alarm system reengineering project, and provides two case studies showing the application of the model.

From Plant Automation Services

ALL MODERN industrial control systems provide alarm management to assist process operators in managing abnormal situations. However, legacy systems must generally be re-engineered in order to take advantage of these newer system capabilities and best practices. The re-engineering process restores the alarm system to a useful state by eliminating duplicate and nuisance alarms, and ensuring that the necessary alarms are properly prioritized and documented.

But in order to attain the required funds for a re-engineering effort, data must be available that demonstrates a financial return for the project. As demonstrated by these case studies, the required data can be attained using the FTA model. The model provides a methodology for determining the cost (environmental, property, and human loss) due to accidents, and for determining the probable frequency of incidents. This data can then be used to justify an alarm re-engineering project, resulting in an alarm system which assists the operator in detecting and responding to incidents in a timely manner.

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Author: Plant Automation Services

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