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May
2015
WorkHorse H-ADCP Operation Manual
Page 232
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
79
DISTANCE MADE GOOD/REF (UP)
LSB
80
81
82
MSB
83
DISTANCE MADE GOOD/REF (ERROR)
LSB
84
85
86
MSB
87
CHECKSUM
LSB
88
MSB
Figure 57.
DVL Binary Data Format (PD5)
DVL Output Data Format (PD5) Details
The H-ADCP sends this data format (Figure 56
and Figure 57) only when the PD5 command is used. Ta-
explains the first part of this data structure.
Table 48:
DVL Output Data Format (PD5) Details
Hex Digit
Binary Byte Field
Description
91,92
46
Salinity
Contains the salinity value of the water at the transducer head (ES-command). This value
may be a manual setting or a reading from a conductivity sensor.
Scaling: LSD = 1 part per thousand; Range = 0 to 40 ppt
93-96
47,48
Depth
Contains the depth of the transducer below the water surface (ED-command). This value
may be a manual setting or a reading from a depth sensor. Scaling: LSD = 1 decimeter;
Range = 1 to 9999 decimeters
97-100
49,50
Pitch
Contains the H-ADCP pitch angle (EP-command). This value may be a manual setting or a
reading from a tilt sensor. Positive values mean that Beam #3 is spatially higher than Beam
#4. Scaling: LSD = 0.01 degree; Range = -20.00 to +20.00 degrees
101-104
51,52
Roll
Contains the H-ADCP roll angle (ER-command). This value may be a manual setting or a
reading from a tilt sensor. For up-facing H-ADCPs, positive values mean that Beam #2 is
spatially higher than Beam #1. For down-facing H-ADCPs, positive values mean that Beam
#1 is spatially higher than Beam #2. Scaling: LSD = 0.01 degree; Range = -20.00 to +20.00
degrees
105-108
53,54
Heading
Contains the H-ADCP heading angle (EH-command). This value may be a manual setting or
a reading from a heading sensor.
Scaling: LSD = 0.01 degree; Range = 000.00 to 359.99 degrees
109-116
117-124
125-132
133-140
55-58
59-62
63-66
67-70
DMG/Btm East
DMG/Btm North
DMG/Btm Up
DMG/Btm Error
These fields contain the Distance Made Good (DMG) over the bottom since the time of the
first ping after initialization or <BREAK>.
Scaling: LSD = 1 dm; Range = -10,000,000 to 10,000,000 dm
141-148
149-156
157-164
165-172
71-74
75-78
79-82
83-86
DMG/Ref East
DMG/Ref North
DMG/Ref Up
DMG/Ref Error
These fields contain the distance made good over the water-mass reference layer since the
time of the first ping after initialization or <BREAK>.
Scaling: LSD = 1 dm; Range = -10,000,000 to 10,000,000 dm
173-176
87,88
Checksum
This field contains a modulo 65536 checksum. The H-ADCP computes the checksum by
summing all the bytes in the output buffer excluding the checksum.