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Control
Arts article on controller performance assessment is the most downloaded
paper in the prestigious Journal of Process Control (more...)
AlarmCapture
V5.0 just released! New interface, new capabilities, and support for more
DCS systems (more...).
Control
Arts receives 4 patents for controller performance and alarm management
(more...)
Now
available - three courses for the advanced control engineer on alarm engineering,
model identification, and controller performance assessment (more...)
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AlarmAnalysis |
A DCS will generate thousands of alarms, and modern data
mining techniques are necessary to highlight problem sources
and areas for improvement.
But looking at the alarms alone is insufficient to fully
analyze the operating environment. The AlarmAnalysis software
also looks at operator moves, plant measurements, and controller
outputs to obtain the best picture, and best analysis techniques,
for your alarm system.
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| Analysis
Techniques |
| Chattering/Frequent
Alarms |
Alarms that chattered and/or occurred frequently |
| Redundancies/Subsets |
Sets of alarms that happened close in time, most of
the time. |
| Stale Alarms |
Alarms that were in the active state for a significant
lenght of time. |
| Alarm Clusters |
Groups of alarms that frequently occurred together. |
| Alarm Sequences |
Commonly occurring alarm sequences |
| Time Correlations |
Alarms plotted as a functio of time and operator shift. |
| Ignored Alarms |
Alarms that were not followed by an operator move. |
| Alarm / Operator Move Correlations |
Alarms that were correlated with an operator move. |
| Changed Alarms |
Alarm parameters that were changed by the operator. |
| Trip Point Analysis |
Determines if the alarm trip point is set just outside
the normal operating range and if it provides adequate
response time. |
| Controller Performance |
Determines if the controllers are responding fast enough
to prevent alarms. |
| Deadband Analysis |
Determines the best deadband setting based on the measurement
frequency response. |
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