Library class/DataLogging.Lifespan property

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VI Server Property Information
Property ID 4D10E815
Scope Basic Development Environment
Data Name DataLogging.Lifespan
Short Name* DataLogging.Lifespan
Long Name* DataLogging:Lifespan
* Displayed here in English. Short and Long names appear in the language of the LabVIEW IDE.
Owning Class ID 80
Owning Class Name Library Class
Data Type U32 data type


Property Node DataLogging:Lifespan
Available in Real-Time Operating SystemNo
Available in Run-Time EngineNo
Loads the block diagram into memoryNo
Loads the front panel into memoryNo
Need to authenticate before useNo
Remote access allowedYes
Settable when the VI is runningYes

Sets the lifespan (in days) of the logged data in the database. If value is 0, then data is always available, otherwise the database can destroy data after the number of specified days.

The database only discards data if new data is logged. This property affects all data from the library stored in the database, not just the most recent data. For example, if you set this property to four days and you have three days of data, the database does not destroy any data. However, if you set this same property to two days from four days and you have three days of data, the database can destroy any data collected more than two days ago.{| class="wikitable" |- | Note The LabVIEW Datalogging and Supervisory Control Module supports this property in the Run-Time Engine. |}



Version Change(s)
LabVIEW 2018 More info to come.

See Also

External Links