Trane TRACER SUMMIT Hardware And Software Installation page 134

Chapter 10 BCU operation and communication status
122
Clear Comm5 database
In a BMTX BCU (or a high-capacity BMTW BCU), a Comm5 database
will be cleared if a BACnet database site name is loaded that does not
match the Comm5 database site name. To force the BCU to clear its
Comm5 database, perform the following actions:
1. Create dummy site with a different name than the existing Comm5
database in the BCU.
2. If the BCU is connected, you can clear the database from the BCU by
using the Tools menu and BCU Reset/Restore. Or you can clear the
database by using the DIP switches.
3. Immediately disconnect (either unplug Ethernet or use the Discon-
nect icon) so database does not automatically reload.
4. Select dummy site.
5. Reconnect to the BCU.
6. Download the dummy site to the BCU.
7. Once the BCU begins normal operation, you can clear the database
again from the BCU (using either the Tools menu and BCU Reset/
Restore, or the DIP switches).
8. Disconnect the BCU from the PC Workstation so the dummy data-
base is not automatically sent again.
9. Select the real site.
10. Establish connection again to the BCU to download the real database.
11. The Comm5 database will be cleared and will need to be recon-
structed.
If the BACnet database already has assigned Neuron IDs, from the
main menu select Setup, then Site Configuration. Choose the Device
tab and click the Assign Neuron ID button. Install the Comm5 link as
described in "Installing a Comm5 Link" in the Tracer Summit System
Programming guide.
BMTX-SVN01C-EN