# OPC UA Alarms

When there is an alarm status change in the OPC UA client, the user should refer to the SM client for more information.

Source | Property name | Data type | Is for data point
--- | --- | --- | ---
DyNetConnectionOfflineAlarm | DyNetConnectionStatus | Boolean | Y
DeviceStatusAlarm | OnlineStatus | Boolean | Y
DriverOfflineAlarm | DriverStatus | Boolean | Y
LampOfflineAlarm | LampStatus | Boolean | Y

| for DALI driver and lamp alarms, ensure that each DALI controller has the following enabled under Device Properties > DALI: Enable DALI status polling and driver failure alarms Enable DALI device status polling and failure alarms