Configure an application object to save historical data

The following table shows the historical attributes for application objects. These history attributes are described in Configure common historical attributes.

AD: AnalogDevice

Bool: Boolean

DD: DiscreteDevice

Dbl: Double

FR: FieldReference

Flt: Float

Int: Integer

SQ: Sequencer

Str: String

SW: Switch

UDO: UserDefined

Note: The historical attributes available from the UserDefined object are based on the data type associated with the selected attribute.

To configure an application object to store history

1. Open the application object in the Object Editor.

   • If you selected a UserDefined object, select the Attributes tab.

   • If you selected an AnalogDevice object, select the History tab. Then, select the General tab to show the history attributes for the object’s PV value.

   

2. Enable historization.

   • For UserDefined objects, create an attribute and then activate the History feature. Assign values to the history parameters. For more information about assigning values to the history feature, see Configure common historical attributes.

   • For AnalogDevice objects, select the Historize feature to enable the common history attributes shown in the History area of the page.

     The History page includes check boxes to save PV, SP, PV mode, Control mode, and Control Track Flag data to the historian.

     Assign values to the PV history attributes that appear in the History area of the page. For more information about assigning values to the common history attributes, see Configure common historical attributes.

3. Save your changes and close the Object Editor.