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May
2015
WorkHorse H-ADCP Operation Manual
Page 222
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Table 43:
Bottom-Track Data Format
Hex Digit
Binary Byte
Field
Description
155-162
78-81
BT Range MSB/Bm
#1-3
Contains the most significant byte of the vertical range from the H-ADCP to the sea
bottom (or surface) as determined by each beam. This vertical range does not consider
the effects of pitch and roll. When bottom detections are bad, BT Range=0. See bytes
17 through 24 for LSB description and scaling.
Scaling: LSD = 65,536 cm, Range = 65,536 to 16,777,215 cm
163-170
82-85
Reserved
Reserved
Binary Reserved BIT Data Format
BIT POSITIONS
BYTE
7
6
5
4
3
2
1
0
1
RESERVED FOR TRDI USE
LSB
2
MSB
Figure 53.
Binary Reserved BIT Data Format
This data is always output. See Table 44 for a description of the fields.
Table 44:
Reserved for TRDI Format
Hex Digit
Binary Byte Field
Description
1-4
1,2
Reserved for TRDI’s
use
This field is for TRDI (internal use only).
Binary Checksum Data Format
BIT POSITIONS
BYTE
7
6
5
4
3
2
1
0
1
CHECKSUM DATA
LSB
2
MSB
Figure 54.
Binary Checksum Data Format
This data is always output. See Table 45 for a description of the fields.
Table 45:
Checksum Data Format
Hex Digit
Binary Byte Field
Description
1-4
1,2
Checksum Data
This field contains a modulo 65535 checksum. The H-ADCP computes the checksum
by summing all the bytes in the output buffer excluding the checksum.