"Often just 10 of the control modules contribute to more than 42% of the plant alarms," said Cindy Scott, DeltaV Operator Interface product manager. "By addressing a few problem areas it may be possible to dramatically improve overall operator effectiveness." The analysis overview quickly helps identify if plant alarms, operator actions or events are trending properly month to month. Alarms are sorted and reported in the order of their frequency. The software also compares alarms with the industry standard EEMUA 191 recommended best practices.

　　The Overview display of this software provides a quick display of how alarms, events and user actions are trending month to month. Viewing this screen may be enough to determine if the production facility is operating at acceptable limits. More detailed information can be gathered by focusing in on an area, time period or event type. These detailed pages provide information to compare different aspects of alarms and events for up to 31 days on a scrollable timetable. The time duration can be directed down to the exact time of an event. The pages are interactive, such that a simple selection updates the page to show alarm frequency控制工程网版权所有, statisticswww.cechina.cn, user acknowledgementsCONTROL ENGINEERING China版权所有, alarm priority distributions or system events. This information can be easily incorp