Figure 36.   Router Table properties

To access, click Config > Drivers followed by the BACnet network, then expand Bacnet CommNetwork and double-click Router Table.

After device discovery using the Bacnet Device Manager, where the All Networks option was chosen, additional router table entries may exist. These reflect other discovered remote BACnet routers. Such entries may populate following an All Networks discovery even if Routing Enabled is false. Entries like this may also result from unsolicited messages received from remote networks.

After 24 hours of no traffic directed to a network, the driver clears the router table entries to prevent the table from being cluttered with old entries. As needed, it discovers router table entries again.

If the station detects a BACnet router loop, the driver may automatically set the Network’s Routing Enabled property to false. When this happens, the station stops acting as a BACnet router for its enabled network ports and generates corresponding entries in the stations’s LogHistory, which note detected mis-configuration and disabled BACnet router functionality.

If needed, you can override this behavior by setting the Maintain Routing Enabled property to true, and resetting Routing Enabled back to true.