B&G Zeus 12 - Manual (Page 49)

48 | Commission the System
Diagnostics
NMEA2000 Diagnostics
User Database UDB
The diagnostic page shows the MAC address of the display, the status and versions of the
five user data bases.
The UDB (user database) is a database of all user created items and settings. Every time
a change is made on a Zeus display, the databases are synchronized so no one display
holds all the user information. All displays should display the same version number for all
databases.
The IP address of Zeus displays that have had changes made to their settings are also
shown.
Bus State: Indicates if SimNet backbone is
operating: Check power: Check termination
RX Overfl ows / Overruns greater than 0 could
indicate the software is very busy and unable to
keep up with incoming messages.
Fast Packet Errors: Detected errors since
power up. Check the network if this is continually
increasing.
Rx / Tx Messages: A count since power up of
messages received / transmitted.
RX / TX Errors: CAN interface error counters.
Count up when there are errors on the CAN bus,
and down when things are Ok. Should normally
be 0. Goes bus off when 255 is reached. Check
same things as for Bus state if greater than 0
observed.