No doubt everyone who has a distributed control system(DCS)has encountered alarm management issues.The reason is simple:A DCS makes over-alarming all too easy.The DCS arrived in a marketplace that had enforced restrictions on alarms due to physical space limitations.To do anything with raw alarms was almost impossible;the only features found in the electro-mechanical alarm annunciator box were first-up alarm indication and the ability to suppress the alarm by removing the electronics from the box.
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