Trane TRACER SUMMIT Hardware And Software Installation page 135

Table 30. Reset level descriptions for the BMTX BCU
BCU reset/restore command
Reset (same as power cycle)
•
Resets the processor on the selected
BCU
Clear RAM and reset
•
Clears the RAM from the BCU and resets
the BCU processor
•
If the BCU has a database intact, it auto-
matically reconstructs the RAM as
needed and resumed processing
Clear database, RAM, and reset
•
Clears both the database and RAM from
the selected BCU and resets the BCU
processor.
Note: To prevent download of database
from secondary workstations, discon-
nect them from LAN before proceeding.
•
Clear the BCU database using the BCU
reset/restore command or using DIP
switch method.
•
Then disconnect BCU from the LAN
either by removing the LAN cable or
using the Disconnect button on the Tool-
bar.
•
Restore the new database to the PC
workstation.
•
Reconnect the BCU.
•
Database will be automatically sent to
the BCU.
Clear code, database, RAM, and reset
•
Clears all memory—code (image), data-
base, and RAM—from the BCU and
resets the BCU processor.
•
If the PC workstation is online, it auto-
matically downloads the code.
•
Once the code is successfully down-
loaded, the PC workstation automati-
cally downloads a new database.
Clear Comm5 database
•
Happens automatically when site name
in BCU changes or BCU address
changes.
•
If the PC workstation is online, it auto-
matically downloads the code.
•
Once the code is successfully down-
loaded, the PC workstation automati-
cally downloads a new database.
Note: For detailed instructions for the DIP switch method, refer to "BCU reset procedures" on page 120.
BMTX-SVN01C-EN
Reasons to reset
•
Initialize modem
•
Initialize communication links
•
Update members in VAS (not applicable
for Comm5 VAS)
•
Restore a backup database from the PC
workstation to the BCU.
•
Replace a database in the BCU.
•
Required when upgrading Tracer Sum-
mit BCU image
•
Used for troubleshooting problem links
LEDs for operation status
Notes
•
Temporary loss of communication with
the BCU
Same as reset plus:
•
Loss of operator overrides. Values
return to Tracer Summit defaults
•
Loss of pending alarms
•
No loss of Comm5 database
Same as Clear RAM and Reset plus:
•
Takes longer to regain communication
with the BCU and UCMs than a clear
RAM or reset does.
•
If database is restoring from a backup of
the site, current trend and calculation
information is lost and reverts to infor-
mation stored in backup.
Same as Clear Database, RAM, and Reset
plus:
•
Code will load to a BCU that does not
have an address.
•
If a database with a different address or
site name is loaded to the BCU, the BCU
Comm5 database will be cleared.
•
Cannot be done from a PC Workstation
BCU Reset/Restore menu.
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