Appendix A.6. Using Bbmd; Appendix A.6.1. Setting Up A Broadcast Distribution Table (Bdt); Appendix A.6.2. Bbmd Configuration Example - FieldServer FS-8704-06 Driver Manual

FS-8704-06 BACnet IP Driver Manual

Appendix A.6. Using BBMD

A BBMD (BACnet Broadcast Management Device) is used to allow devices on different subnets to communicate to
one another. BACnet/IP requires that a BBMD be defined on every subnet. The FieldServer can act as a BBMD for
the subnet that it resides on. Setting the Connection_Type to BBMD will enable this functionality on the
FieldServer.
Notes:

BBMD operation is not required if there is already another BBMD on the subnet – there can only be one BBMD
per subnet.

The FieldServer cannot act as a BBMD and a BACnet/IP Client at the same time.
Appendix A.6.1. Setting up a Broadcast Distribution Table (BDT)
The FieldServer supports two methods of updating its internal broadcast distribution table.

Trane's Tracer Summit IP Validation utility can be used directly to upload and download a Broadcast
Distribution Table.

The Broadcast Distribution Table can be configured using the bdt.ini file. The following file must be created
and downloaded to the FieldServer using the Ruinet "Download Configuration" command.
// Bdt.ini
// The format of this table must be :
//
// BBMD IP_Address , BBMD port
24.90.48.179 , 47808
64.80.115.156 , 47808
Appendix A.6.2. BBMD Configuration Example
Using the following configuration, a PC using BACnet explorer is able to browse and display the contents of two
FieldServers. The following image shows the BACnet explorer screen.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: support@fieldserver.com
, BBMD subnet Mask
, 255.255.255.255
, 255.255.255.255
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