and warning 
icons appear on the bar. If faults are disabled, the icons will not appear and the bar will always remain green.During normal operation, the fault status bar is green.
If a warning occurs, the bar changes to yellow. If an alarm occurs, the bar changes to red. Touch the bar to open the Fault History window.
NOTE: When faults are enabled, the alarm and warning icons appear on the bar. If faults are disabled, the icons will not appear and the bar will always remain green.
The link icon indicates the status of the spray monitor connection to the OPC server. The link will appear in one of two ways:
The device is communicating with the OPC server.
The device has lost communication with the OPC server.
If this flashing icon appears on the bar, the device configuration has changed.