JAN-FEB 2019

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INTECH JANUARY/FEBRUARY 2019 31 AUTOMATION IT Applying alarm management By Joseph Alford, Bridget Fitzpatrick, Doug Metzger, and Graham Nasby A s part of their support and guidance for using the standards they develop, ISA standards committees prepare technical reports that help automation professionals on a wide variety of topics. This article highlights three alarm management technical reports that Figure 1. Alarm management life cycle (figure 2 from ISA18.2) FAST FORWARD l ISA18.2-TR4 provides guidance on how and when to use enhanced or advanced alarm methods. l ISA18.2-TR6 has numerous examples for designing alarms for batch and discrete systems. l ISA18.2-TR7 provides guidance for both vendors and users of packaged process equipment. have been published: ISA-TR18.2.4, Advanced and Enhanced Alarm Methods, ISA-TR18.2.6, Alarm Design for Batch and Discrete Processes, and ISA-TR18.2.7, Applying Alarm Management when Utilizing Packaged Systems. The ISA-18.2 standard In 2009, the original version of ANSI/ISA-18.2, Management of Alarm Systems for the Process Industries, was published. It was further de- veloped with ISA18 leadership into the IEC 62682:2014 international standard, which in turn was refined into the current ANSI/ISA- 18.2-2016 standard. Known as ISA-18.2, the alarm management standard is organized around the concept of the alarm management life cycle (figure 1). As with most published consensus standards, the content of ISA-18.2 focuses on "require- ments." It does not include guidance on how to satisfy those requirements. This is where the ISA-18.2 technical reports (TRs) are helpful. The TRs give guidance on how to best implement ef fective alarm systems using ISA-18.2. They also provide background information and examples that explain the purposes and rationale behind the requirements outlined in ISA-18.2.

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