Diagnostic application introduction

Controller LED indicators

The LEDs on the controller show basic operating information about the active and standby controllers.

If the LED is...

Then the...

Solid green Active

Active controller is downloaded and in control.

Flashing green Active

Active controller is not downloaded.

Solid green Standby

Standby controller is downloaded and ready to take control.

Flashing green Standby

Standby controller is unable to take control.

The standby controller may be unable to take control for the following reasons: