This object reports or sets the current color/blink state of an operator-panel LED, cycling through values such as green-stable, amber-stable, amber-blinking, and green-blinking, with the red states reserved as read-only fault indications that cannot be written. An administrator can set it to change the LED's indicated state (for example to trigger an amber blink for attention) but only when the LED is currently in the green-stable state, and it defaults back to green-stable. For example, setting this object to amber-blinking would make the unit's status LED flash amber to signal a maintenance condition to someone standing at the device.