The Alarm Event State attribute defines how Node State events are handled. Node State events are separate from device ONLINE or OFFLINE events. The Node State is in a Configured Online, Configured Soft Offline, or Configured Bypass state.
When the Alarm Event State attribute is set to TRUE, any off-normal state (Soft Offline or Bypass) causes a Node State is not normal event, and is logged. In addition, the status of the LON device transitions to an Unreliable state. The Diagnostics Tab of the LON device logs the unreliable condition in the Node State attribute. When the LON device returns to a normal Node State, the event is logged in addition to setting the status of the LON device to Normal.
When the Alarm Event State attribute is set to FALSE, all off-normal conditions are suppressed including events. The status of the LON device remains Normal, but the Diagnostics Tab of the device logs the unreliable condition in the Node State attribute.