Library class/DataLogging.Lifespan property

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
Available in Real-Time Operating System	No
Available in Run-Time Engine	No
Loads the block diagram into memory	No
Loads the front panel into memory	No
Need to authenticate before use	No
Permissions	Read/Write
Remote access allowed	Yes
Settable when the VI is running	Yes

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. |}

History

Version	Change(s)
	More info to come.