How Virtual Downtime works

Virtual Downtime enables AVEVA™ Production Management to detect when the process is not running at full capacity. It enables the configuration of target and actual rates and monitors them against each other. Like Downtime, you can configure Virtual Downtime with start and stop delays.

How does AVEVA Production Management calculate Virtual Downtime?

Downtime compares actual production rates with a target rates. When production falls below this target rate, with appropriate delays and minor fluctuations, a Virtual Downtime event is generated.

Virtual Downtime does the following:

• Monitors output rate.

• Contains a Threshold that permits minor fluctuations.

• Compares Actual production rates with Target rates.

• Has permitted time delays before reporting; VirtualStartDelay and VirtualStopDelay.

• Begins reporting Virtual Downtime when output level falls below threshold for longer than the permitted time.

• Virtual Downtime cannot occur unless Real Downtime is in the OFF status.

  Tip: To synchronize the relationship between Real Downtime and Virtual Downtime, we recommend that the StartDelay = VirtualStopDelay and StopDelay = VirtualStartDelay.

Related topics

• Effective Downtime

• Overview of Downtime

• Add and configure a Downtime reporting point

• Add and configure a virtual capture condition