BAS-SVX45F-GB
81
Appendix A: Configuring Tracer UC600 for BACnet/IP
Setting Up a BDT
The BACnet protocol requires the use of IP broadcast messages. IP routers do not pass broadcast
messages from one subnet to another. BACnet BBMD functionality is used to forward broadcast
messages across IP routers to BACnet devices on the remote subnet. BBMDs are not required if all
BACnet/IP devices reside on the same subnet.
A broadcast distribution table (BDT) is part of the BBMD functionality. A BDT contains the list of IP
addresses that identify each BBMD in the BACnet network. All BBMDs should have exactly the
same entries in their BDT and must include their own IP address.
Important:
Only one BBMD per IP subnet is allowed.
To set up a BDT for Tracer UC600:
1.
Start a session of Tracer TU.
2. Navigate to Utilities > Status > Controller Settings. The Controller Settings utility opens.
3. Click Protocol to display a list of protocols that the UC600 uses to communicate with other
controllers. Select the Controller is a BACnet Broadcast Management Device (BBMD) check
box. (See
.)
Figure 47. Setting up a BBMD and BDT
4. Click Add BBMD.
5. In the provided fields, enter the IP address of the BBMD device on the remote network.
6. Repeat the BBMD assignment process for all BBMD devices in the BACnet network.
7.
Click Test Communication to verify.
Security
Tracer UC600 network security can be enhanced by limiting user access over the IP network,
restricting access to HTTPS only, and disabling the user interface through a Web browser. The
customer’s IT staff should be consulted when setting up enhanced security.
Local Network (Firewall) Security
Trane controllers do not have built in firewalls and, therefore, rely on the network security
infrastructure for protection. Trane recommends placing all IP-enabled devices behind the
corporate firewall. When properly configured, firewalls will improve network security.
