About Downtime
- Last UpdatedApr 14, 2025
- 2 minute read
Downtime captures time events when a plant is not producing or is producing below the target rate or quality specification. Determining the root cause of production downtime gives you the information to take measures against production losses.
Downtime consists of the following core functions:
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Data collection – Automatic record creation on occurrence of a downtime event or manual entry.
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Editing and validation – Add additional downtime details and confirm downtime events.
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Information view and analysis – View downtime data in grid form and charts for analysis.
Types of Downtime
AVEVA Production Management classifies downtime as real downtime or virtual downtime. An equivalent downtime is calculated by taking the actual time the plant was operating below target and expressing it in terms of the time lost if the plant were operating at its optimal production rate.
Downtime defines downtime as the following types:
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Real Downtime – Time production has actually stopped.
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Virtual Downtime – Time when production is below user-defined threshold or below user-defined specification, but production has not stopped.
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Masked Downtime – A mechanism to limit the reporting on duplicate downtime events.
Downtime event processing
AVEVA Production Management applies these rules when Downtime events are processed:
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When a Downtime event occurs in the system as per user-defined downtime rules, the system automatically creates a Downtime event record.
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Downtime applies a permitted delay before reporting the event (Start Delay and Stop Delay).
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The operator can add additional information to the Downtime event, such as cause location, classification, or comments.
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The supervisor can confirm that new events are completed and correct.
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Only confirmed data is used in Downtime reporting.
Clipped Downtime durations
If a Downtime record continues past the time period in a filter, you may be interested in either the full duration of the Downtime event, or only the clipped portion of time that occurs within the time period.
Downtime data results display the clipped Downtime duration followed by the full time. The clipped time is the time that occurs only within the time filter window.