Teledyne WORKHORSE Operation Manual page 221

WorkHorse H-ADCP Operation Manual
Table 37: Variable Leader Data Format
Hex Digit Binary Byte
49-52 25,26
53-56 27,28
57,58 29
59,60 30
61,62 31
63,64 32
65,66 33
67,68 34
69-70 35
71-72 36
73-74 37
75-76 38
77-78 39
79-80 40
81-82 41
83-84 42
85-86 43
Field Description
ES / 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
ET / Temperature Contains the temperature of the water at the transducer head (ET-command). This
value may be a manual setting or a reading from a temperature sensor.
Scaling: LSD = 0.01 degree; Range = -5.00 to +40.00 degrees
MPT minutes This field contains the Minimum Pre-Ping Wait Time between ping groups in the
ensemble.
MPT seconds
MPT hundredths
H/Hdg Std Dev These fields contain the standard deviation (accuracy) of the heading and tilt angles
from the gyrocompass/pendulums.
P/Pitch Std Dev
Scaling (Heading): LSD = 1°; Range = 0 to 180° Scaling (Tilts): LSD = 0.1°; Range =
R/Roll Std Dev
0.0 to 20.0°
ADC Channel 0 These fields contain the outputs of the Analog-to-Digital Converter (ADC) located on
the DSP board. The ADC sequentially samples one of the eight channels per ping
ADC Channel 1
group (the number of ping groups per ensemble is the maximum of the WP). These
ADC Channel 2
fields are zeroed at the beginning of the deployment and updated each ensemble at
ADC Channel 3
the rate of one channel per ping group. For example, if the ping group size is 5,
then:
ADC Channel 4
ADC Channel 5 END OF ENSEMBLE No.
ADC Channel 6
ADC Channel 7
Here is the description for each channel:
CHANNEL
0
1
2
3
4
5
6
7
Note that the ADC values may be "noisy" from sample-to-sample, but are useful for
detecting long-term trends. See
Error Status Word Contains the long word containing the bit flags for the CY? Command. The ESW is
cleared (set to zero) between each ensemble.
Note that each number above represents one bit set – they may occur in combina-
tions. For example, if the long word value is 0000C000 (hexadecimal), then it indi-
cates that both a cold wake-up (0004000) and an unknown wake-up (00008000)
occurred.
Low 16 BITS
LSB
BITS 07 06 05 04 03 02 01 00
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Start
1
2
3
4
↓
DESCRIPTION
XMIT CURRENT
XMIT VOLTAGE
AMBIENT TEMP
PRESSURE (+)
PRESSURE (-)
ATTITUDE TEMP
ATTITUDE
CONTAMINATION SENSOR
Converting ADC Channels
x x x x x x x 1 Bus Error exception
x x x x x x 1 x Address Error exception
x x x x x 1 x x Illegal Instruction exception
x x x x 1 x x x Zero Divide exception
x x x 1 x x x x Emulator exception
x x 1 x x x x x Unassigned exception
x 1 x x x x x x Watchdog restart occurred
1 x x x x x x x Battery Saver power
CHANNELS UPDATED
All channels = 0
0, 1, 2, 3, 4
5, 6, 7, 0, 1
2, 3, 4, 5, 6
7, 0, 8, 2, 3
↓
for more information.
Page 209
May 2015