Matrix PS System Installation and Commissioning Guide
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Dali Wireless Proprietary and Confidential | DW-MAN-036 Rev 06
When you are logged into the Secondary controller, the EMS displays a banner in the
Unit view. All fields are grayed out, and read-only.
12.7.4
Identifying System Controller Failure s
A system controller outage can occur as a result of hardware and software failures.
Some indicators of a failure are:
EMS displays a Disconnected dialog box
Power cycling the system controller does not recover the unit
12.7.4.1
Disconne cted Dialog Box
The Disconnected dialog box means the system controller is not communicating with
host and remote units.
Before you assume the system controller has failed, refresh the browser window and try
logging in again. If you still can't log in to the EMS after several attempts, the system
controller has likely failed. If the unit is the Primary controller, manually fail over to the
Secondary controller.