are outlined in red at runtime when the graphic element cannot write or display a tag value.
The red outline appears when there is not a valid programmable or physical connection to the controller, or a tag in a dynamic link does not exist in the controller. The red outline indicates that the graphic element is in error.
A UI control in error is outlined in red and may display a red X. An example text box in error at runtime may appears as:
For controls that contain additional content such as navigation elements, only the invalid tag is outlined in red:
For graphic elements that display this error, resolve the connection to the controller and verify that the tag exists in the controller.
