Stack: Unresolved device address

Issue: Using offline discovery to add BACnet points into the station database while the BACnet device is offline creates a number of BacnetException:Stack:Unresolved device address debug messages in the Application Director view. The status flag type and status flag colors indicate the condition of the point.

In these examples, offline discovery attempted to add BACnet proxy points to the station database. The BACnet device is initially offline and then afterwards brought online. Inspection of the Application Director view shows a number of messages, which occurred during the discovery job while the BacnetDevice was offline.

Figure 6. Proxy points added while the BacnetDevice is offline

The BACnet proxy points report {down} indicating driver communications to the parent device are currently lost based upon the device status (Monitor) configuration for the network.

Figure 7. BacnetDevice online

When driver communications to the parent device are subsequently established, based upon the device status (Monitor) configuration for the network, the BACnet proxy points report {ok}

Figure 8. Proxy points added while the BacnetDevice is initially offline

The BACnet proxy points report {fault}, which typically indicates a configuration error or a native fault in the parent BACnet device.

Figure 9. BacnetDevice online

When driver communications to the parent BACnet device are subsequently established, based upon the device status (Monitor) configuration for the network, the BACnet proxy points report {ok}. When you refresh the database view, the system updates the Read: Stack:Unresolved device address.