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ISA has published the latest ¡n a series of technical reports that support the understanding and application of the widely used ANSI/ISA-18.2-2016, Management of Alarm Systems for the Process Industries.
ISA-TR18.2.7, Alarm Management When Utilizing Packaged Systems, provides guidance on how to integrate packaged systems into basic process control system-based centralized alarm systems. The technical report addresses various issues that can arise when ISA-18.2 work processes are applied to facilities where packaged systems are used, and gives guidance on how to successfully apply ISA18.2 in these situations.
A packaged system, in the context of the technical report, can be visualized as existing outside of the basic process control system. It is a separate entity, usually containing an embedded microprocessor, controller, or hardwired logic, which performs specific tasks for a piece of equipment or a process operating within a facility. Most packaged systems can be configured to send alarm or status information to a basic process control system, directly to an alarm annunciation system, or both.
"Packaged systems have long been a great source of frustration for automation professionals, especially when it comes to integrating them into...