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May
2015
WorkHorse H-ADCP Operation Manual
Page 210
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Table 37:
Variable Leader Data Format
Hex Digit
Binary Byte
Field
Description
87-88
44
Low 16 BITS
MSB
BITS 15 14 13 12 11 10 09 08
x x x x x x x 1 Pinging
x x x x x x 1 x Not Used
x x x x x 1 x x Not Used
x x x x 1 x x x Not Used
x x x 1 x x x x Not Used
x x 1 x x x x x Not Used
x 1 x x x x x x Cold Wakeup occurred
1 x x x x x x x Unknown Wakeup occurred
89-90
45
High 16 BITS
LSB
BITS 24 23 22 21 20 19 18 17
x x x x x x x 1 Clock Read error occurred
x x x x x x 1 x Unexpected alarm
x x x x x 1 x x Clock jump forward
x x x x 1 x x x Clock jump backward
x x x 1 x x x x Not Used
x x 1 x x x x x Not Used
x 1 x x x x x x Not Used
1 x x x x x x x Not Used
91-92
46
High 16 BITS
MSB
BITS 32 31 30 29 28 27 26 25
x x x x x x x 1 Not Used
x x x x x x 1 x Not Used
x x x x x 1 x x Not Used
x x x x 1 x x x Power Fail (Unrecorded)
x x x 1 x x x x Spurious level 4 intr (DSP)
x x 1 x x x x x Spurious level 5 intr (UART)
x 1 x x x x x x Spurious level 6 intr (CLOCK)
1 x x x x x x x Level 7 interrupt occurred
93-96
47-48
Reserved
Reserved for TRDI use.
97-104
49-52
Pressure
Contains the pressure of the water at the transducer head relative to one atmos-
phere (sea level). Output is in deca-pascals (see
Scaling: LSD=1 deca-pascal; Range=0 to 4,294,967,295 deca-pascals
105-112
53-56
Pressure variance
Contains the variance (deviation about the mean) of the pressure sensor data. Out-
put is in deca-pascals.
Scaling: LSD=1 deca-pascal; Range=0 to 4,294,967,295 deca-pascals
113-114
57
Spare
Spare
115-116
58
RTC Century
These fields contain the time from the H-ADCP’s Y2K compliant real-time clock (RTC)
that the current data ensemble began. The TT-command (Set Real-Time Clock) ini-
tially sets the clock. The H-ADCP does account for leap years.
117-118
59
RTC Year
119-120
60
RTC Month
121-122
61
RTC Day
123-124
62
RTC Hour
125-126
63
RTC Minute
127-128
64
RTC Seconds
129-130
65
RTC Hundredths