Disabling or reducing the frequency of navigation or status messages will remove the
warning and ensure reliable operation of the CAN bus. Increasing the baud also works,
but the baud rate must be common to all devices on the bus. When using an RT-ANA,
the default baud rate is 1 MBaud.
The Export DBC file button generates a CAN DBC library listing all navigation and
status messages that are enabled (not greyed-out). The DBC file does not include
channels defined under the acquisition tab. The navigation status message binary format
is described from Table 31 onwards. The status message binary format is the same as
the NCOM status message binary format as described in the NCOM Description
manual. Those status messages that do not have signals listed against them are not
described at the signal level in the DBC file. The binary format of these messages is
quite complex and as such the DBC file it not sufficient to describe the decoding process.
The Navigation tab is where navigation-related CAN messages are configured for
output. The table can be sorted in ascending or descending order by clicking any column
header. This is particularly useful when checking for enabled/disabled messages.
Figure 28. NAVconfig CAN Output configuration tab – Navigation
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