Controlling Data Sources in a Picture by Group Selection

Operations Hub allows you to write to tag values associated with an asset’s properties in the Asset Model. It is possible to define a group of objects in a picture that can be selected at runtime, resulting in a control card appearing in which the operator can write to controllable properties of a given asset. This is accomplished with the IsSelectable property in the exported picture JSON file, which is only exported for iFIX Group objects that have Enable Select enabled in iFIX pictures.



With traditional iFIX pictures, selecting the Enable Select property allows an object to be selected in the runtime environment.

With iFIX pictures that are intended for export to Operations Hub, selecting the Enable Select property of a group designates that group as a "click zone" in that picture. A click zone allows properties of a certain asset to be controlled or modified by writing to the associated iFIX tags. When you click on a selectable group that has an asset associated with it, a control card opens to show the current values for a specified set of properties for that asset. Both controllable and non-controllable properties display, based on the configuration of the properties. (Controllable properties are indicated with a gear icon.) Clicking on the control card changes it to Edit view. Edit view allows you to enter new values for those properties. The new values are written to the iFIX database tags when the Confirm button is selected.