October 2017
RiverPro and RioPro ADCP Guide
Page 138
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Header Data Format
BIT POSITIONS
BYTE
7
6
5
4
3
2
1
0
1
HEADER ID (7Fh)
2
DATA SOURCE ID (7Fh)
3
NUMBER OF BYTES IN ENSEMBLE
LSB
4
MSB
5
SPARE
6
NUMBER OF DATA TYPES
7
OFFSET FOR DATA TYPE #1
LSB
8
MSB
9
OFFSET FOR DATA TYPE #2
LSB
10
MSB
11
OFFSET FOR DATA TYPE #3
LSB
12
MSB
↓
(SEQUENCE CONTINUES FOR UP TO N DATA TYPES)
↓
2N+5
OFFSET FOR DATA TYPE #N
LSB
2N+6
MSB
See Table 18 for a description of the fields.
Figure 29.
Header Data Format