Rockwell Automation Publication 2715P-UM001C-EN-P - March 2019 59
Configure Terminal Settings Chapter 3
A green circle with a check indicates a successful calibration.
A red circle with an X indicates a failed calibration.
If the calibration fails, the process automatically repeats. Continue the
calibration until the calibration is successful.
TIP The calibration is retained after a reset or power cycle.