Kvaser Memorator Professional User’s Guide
24 (37)
Kvaser
Memorator
Professional
Kvaser Memorator
RX performance per channel (when
used as a CAN interface)
20 000 messages/s
12 000 messages/s
TX performance per channel (when
used as a CAN interface)
20 000 messages/s
6000 messages/s
Logging performance
20 000 messages/s
5000 messages/s
Time stamp accuracy
2
µ
s
100
µ
s
Message filter support
Stop, pass, counting
Pass
SD memory size support
2 GB
1 GB
SDHC memory support
32 GB
No
Galvanic isolation
Yes
No
Number of triggers
16
8
Startup time when used as a logger
< 0.25 s
2.5 s
Upload of logged data
1.4 MB/s (when con-
nected via USB 2.0
HiSpeed),
14 MB/s
(when using an exter-
nal disk reader)
Table 11: Performance comparison
5.4
Disk capacity
Each CAN message occupies 24 bytes in the log file. The following table gives
some
approximate
values of the capacity for various disk sizes.
Disk size
Approximate capacity
Approximate time to fill the
disk (at 500 messages per
second)
64 MB
2,700,000 messages
1h 30min
256 MB
10,700,000 messages
6h
512 MB
21,300,000 messages
12h
1 GB
41,700,000 messages
23h
2 GB
83,300,000 messages
46h 30min
Table 12: Disk capacity
5.5
Disk structure
You can use an external card reader to read the files on the flash disk. The Kvaser
Memorator Tools can read the log data directly via the external card reader, so you
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