Configuring a station as a foreign device

If the station is configured as a BBMD, in addition to the Broadcast Distribution Table component, the IpPort’s Link container also has a Foreign Device Table component. It accumulates entries for remote BACnet/IP devices that have registered with the station as a foreign device, and includes their registration time to live and upcoming purge time.
  1. Expand the BACnet network’s Bacnet Comm > Network > IpPort > Link node and open the property sheet for the Link component.
  2. In the Ip Device Type property, select Foreign Device from the drop-down list.
  3. In the Bbmd Address property, enter the address of a known BBMD on a remote subnet using its full BACnet/IP MAC address: IP_Address:UDP_port, where IP_Address is a the number that identifies the station, and UDP_port is a number that identifies the port, which conforms to the User Datagram Protocol.
    This is the BBMD that the station attempts to register with as a foreign device.
    Image

    For example, for a BBMD at 10.77.17.143 using the standard UDP port 0xBAC0 (decimal 47808), either entry format is accepted: 10.77.17.143:47808 or 10.77.17.143:0xBAC0

  4. In the Registration Lifetime property, either accept the default 15 minutes, or enter another value.
    The station automatically re-registers within this period.
  5. To enable this configuration, click Save.
    This station attempts to register with the remote BBMD.
  6. From the Bacnet Device Manager, perform a device discover.
    If the foreign device configuration was successful, you should see devices from other subnets respond.