Niagara R2: How to Indicate Override on GxText by Changing Color

[Product_Support]

Issue

Need to visually indicate when a linked object is in an override condition by changing the color of a GxText object in Niagara R2 graphics.

Product Line

TAC IA Series

Environment

• Niagara R2
• WorkPlace Pro graphics using GxText objects

Cause

Operators require a clear visual cue on graphics when an object is overridden. By default, GxText does not automatically change color based on override status.

Resolution

Niagara R2 provides objects in the programLib JAR that can detect override conditions and trigger color changes:

1. Detect Override Condition

   • Use objects from programLib/hvac folder:
     • AoCheckForOverride
     • BoCheckForOverride
   • These objects output a Boolean flag when an override exists.

2. Change Color on Override

   • Use objects from programLib/util folder:
     • ColorOvBinary
     • ColorOvFloat
   • Connect the priority input of these objects to the overridden object.
   • When an override occurs, the linked object changes color (e.g., magenta).

3. Update GxText

   • Modify the Active Text as needed.
   • Connect the color-changing object to the GxText on the graphic.
   • The GxText will now change color when the override condition exists.