Trane TRACER SUMMIT Hardware And Software Installation page 114

Chapter 7 Network communication
102
Note:
If this test fails (indicated by I Am Failed messages), first check
to see if the BCU has code in it. If it does not, you will see a
blinking letter –C on the seven-segment LED display (see
Figure 39 on page 117 for the location of the LED).
If the BCU has code, then verify the BCU IP configuration,
including addresses and all setup information. Typically, a fail-
ure results from improper BCU IP configuration. If BCU/
BBMD setup checks out, then ask the owner's IS staff to verify
the IP router's ability to pass UDP on the designated port.
Setting up the broadcast distribution table (BDT)
In order for communications to work across IP subnets, a table called a
broadcast distribution table (BDT) needs to be downloaded to each BBMD
in that site. The BDT lists the location of each BBMD in a site. The BDT
is automatically created by the IP Validation utility, but must be manu-
ally downloaded using the Ethernet IP LAN. To download the BDT, follow
these steps:
1. From a PC Workstation that is connected to the network, start the IP
Validation utility by choosing Programs, then Tracer Summit, then
Advanced, and then IP Validation utility.
2. Open the site file you created in "Programming the site" on page 99.
3. Select Configure BBMDs from the File menu or click the BDT Editor
button.
4. Verify that all of the BBMDs for the site are listed.
5. Click Download. The table should be sent to all BBMDs. If the down-
load is not successful, an error will appear.
6. Click Validate. If successful, BDT OK will appear under Status.
7. Exit the IP Validation utility by selecting Exit from the File menu.
8. Start Tracer Summit. The BCUs should receive their code and data-
bases, and communications should proceed the same as for a dedi-
cated network.
Special situations
There are several special situations that require additional configuration.
These are highlighted below.
Multiple sites on a single shared network
On a larger installation, many buildings may exist on a shared network.
In this case, you will typically program each building as its own site. This
can be easily accommodated. Follow these rules:
Each BCU and PC Workstation on a site will require a unique device
•
ID. However, the device IDs may be re-used on other sites on the IP
network.
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