Data Logs
Appendix C
SPAN-SE User Manual Rev 1
231
Field #
Field type
Data Description
Format
Binary
Bytes
Binary
Offset
1
LOGLIST
(binary)
header
Log header
H
0
2
#logs
Number of messages to follow,
maximum = 20
Long
4
H
3
port
Output port, see
Enum
4
H+4
4
message
Message ID of log
Ushort
2
H+8
5
message
type
Bits 0-4 = Reserved
Bits 5-6 = Format
00 = Binary
01 = ASCII
10 = Abbreviated ASCII,
NMEA
11 = Reserved
Bit 7 = Response Bit
0 = Original Message
1 = Response Message
Char
1
H+10
6
reserved
Char
3
1
H+11
7
trigger
0 = ONNEW
1 = ONCHANGED
2 = ONTIME
3 = ONNEXT
4 = ONCE
Enum
4
H+14
8
period
Log period for ONTIME
Double
8
H+18
9
offset
Offset for period (ONTIME trigger)
Double
8
H+26
10
hold
0 = NOHOLD
1 = HOLD
Enum
4
H+34
11...
Next log offset = H + 4 + (#logs x 34)
variable
xxxx
32-bit CRC
Hex
4
H+4+(#logs
x 34)
1. In the binary log case, an additional 2 bytes of padding are added to maintain 4-byte alignment
