The mapping of BACnet Event Notifications to OPC UA Event Fields is defined in Table 73.
Table 73 – Mapping BACnet Event Notification to OPC UA Event Fields
| BACnet Event Notificaiton | OPC UA Event Field | Description | 
| Process Identifier | 
 | Not visible for OPC UA client. Only used by the BACnetUaMapper internally. | 
| Initiating Device Identifier | BaseEventType::SourceNode BaseEventType::SourceName | 
 | 
| Event Object Identifier | ||
| Time Stamp | BaseEventType::ReceiveTime | The BACnetUaMapper creates the ReceiveTime if the BACnet device sends a sequence number as Time Stamp. | 
| Notification Class | BACnetNotificationType:: Notification_Class | 
 | 
| Priority | BaseEventType::Severity | The BACnet value range 0-255 is mapped to the OPC UA value range of 1-1000. In OPC UA 1000 is the highest Severity. In BACnet 0 is the highest Priority. | 
| Event Type | BaseEventType::EventType | 
 | 
| Message Text | BaseEventType::Message | 
 | 
| Notify Type | BACnetNotificationType:: Notifiy_Type | 
 | 
| AckRequired | AcknowledgableConditionType::AckedState | 
 | 
| From State | BACnetNotificationType:: From_State | 
 | 
| To State | BACnetNotificationType:: To_State | 
 |