Types of displays

The PI Vision OMI App lets you choose different types of displays to show in a particular pane during run time:

• Dashboard

• Ad Hoc

• Freeform

The types are mutually exclusive during configuration. Therefore, only one type can be configured for each instance of the PI Vision OMI App. If you enable more than one during configuration, an error indication (red highlight around the misconfiguration), will be shown.

Dashboard displays, also called saved displays, show a previously saved display from your PI Vision server.

Ad hoc displays, also called temporary displays, show attributes from the specified asset server and asset database, and then plot the items on an ad hoc display.

Freeform displays let you specify a URL within the app during configuration. Freeform displays can be dashboards displays, comparison displays, or any other valid URL that contains the PI System data that you want to show at run time. In contrast to the other display types, you have to manually enter all URL parameters, instead of configuring properties that are then passed to a PI System server.

Contextualized displays

Both dashboard and ad hoc displays can be configured to to show attributes that belong to the currently selected asset. This is determined by the Follow Current Context property. When Follow Current Context is disabled (set to False), the display does not change when you select different assets. When Follow Current Context is enabled (set to True), the display changes to the context of the selected asset. See Contextualization for more information.

Note: Freeform displays cannot be contextualized.