Detail Control

The Detail control is a CygNet-aware tool, which displays real-time data for a single point in multiple formats within the same control. The control contains six elements:

• three tokenized text strings (top, middle and bottom). The control can display static text, such as a label, or dynamic text based on point or facility attributes. Dynamic text is built using tokens, which can represent real-time CVS point properties, point configuration properties, and facility properties.
• an alarm icon that can be configured to change color based on point state and change image based on alarm priority
• a small sparkline with configurable line color, x- and y-axis, date ranges, both relative and absolute, and live data updates
• an arrow that is scripted to flip the detail control when clicked and display an object of your choosing on the reverse side of the detail control. The object on the reverse side will receive its point configuration from the detail control.

The last three elements (alarm icon, sparkline, and flip icon) can be toggled on or off.

The control's background and text color can be explicitly configured or sourced from the point state color defined for the associated point. Colors in the control can be overridden when a custom color palette is selected for the screen. Date, time, and value formatting for the text displayed on the control is supported. The control can be hidden if the associated point is invalid. Font sizing, text styling, and text weighting are also configurable. This control supports tooltips, which can be displayed as tokenized text, a Canvas object, or the tooltip can be scripted to retrieve and display values for related points or CygNet notes. A context menu is available in run mode with access to CygNet point and alarm data, including alarm acknowledgment, current and history values, point and facility configuration, and trending point data on a default chart.

Property Inheritance

Property Inheritance

Property inheritance is a widely used concept in Canvas. The application supports an explicit relationship between screens, objects, and controls, where certain property values, such as SiteService and facility tags, are passed from one element to another via an inheritance framework. Screens, objects, and controls can be configured as property senders or property receivers and provide configuration options where you can explicitly define the source of the SiteService and facility. Depending on how you have your screens, objects, and controls set up, the SiteService and facility may come from any one of the following sources:

• from itself — indicated by selecting <Self> and then explicitly configuring the property
• inherited from the screen — indicated by selecting Screen, which is always present as a sender
• inherited from another control — indicated by selecting the Name of the sending control

Broadcasting

Screens and objects support an additional notification option to broadcast their SiteService and facility selection changes to other open screens running in the Canvas or Canvas View application. If configured, a <Broadcast> option is available to source the screen's SiteService and facility properties from another open screen.

For example, a text tool can be configured to get its facility from the screen and the screen can be configured to get its facility from a tag chooser. Or Screen_A might source its facility from Screen_B, which gets its facility from a tag chooser.

Receiver or Sender

The detail control supports property inheritance as a receiver of its SiteService and facility:

The detail control does not send its SiteService or facility to other controls.

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