Kvaser Memorator Light User’s Guide
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CAN bus that are actively sending and receiving messages and are not in silent
mode.
There must be at least two active nodes on the CAN bus, other
than the Kvaser Memorator Light.
5.9
CAN bus autobaud
The Kvaser Memorator Light features autobaud on the CAN bus. This means the
device listens to CAN bus traffic and automatically adapts to the signaling rate
being used. The signaling rate cannot be set manually since autobaud is always
active.
If the Kvaser Memorator Light fails to adapt to the signaling rate, use the Kvaser
Memorator Tools to adjust the autobaud process. The tool provides standard
signaling rate tables for various higher layer protocols. Select the appropriate table
for the higher layer protocol being used.
The autobaud process requires CAN bus traffic to work and does not work on a
quiescent CAN bus. When adjusting the signaling rate, a number of CAN
messages are always missed. As soon as the correct signaling rate is detected,
which typically takes around 20 ms, the Kvaser Memorator Light begins logging.
The status of the autobaud process is displayed by the LED indicators as shown in
Table 3 on Page 10 and Table 6 on Page 10.
5.10
CAN bus overrun
Under extremely heavy load with high signaling rates and long bursts of messages,
the Kvaser Memorator Light may lose messages. This loss is a rare occasion, and
if such a loss occurs the setup displays a notification message when the file is
extracted. Several of the file formats that support this feature also indicate when
the overrun occurred. (See the help section in Kvaser Memorator Tools for details
about file formats.)
Kvaser AB, Mölndal, Sweden — www.kvaser.com
