Aanderaa DCPS 5400, Operating Manual

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Page 114
July 2019 – TD 304 OPERATING MANUAL – Doppler Current Profiler Sensor
Figure 5-9: All parameters output outside profile data
The order of these parameters is as follows:
Heading, Std Dev Heading, Pitch, Roll, Abs Tilt, Max Tilt, Std Dev Tilt, Tilt Direction, Speed of Sound, Depth,
Salinity, Density, Charge Voltage Vtx1, Charge Voltage Vtx2, Min Input Voltage, Input voltage, Input Current,
Memory Used, Air Detect. Then the Record State and Ping Count are the last parameters before the first cell
parameter in the first column is output.
5.7.2
Record State
A record state value is also output for each measurement interval. This is a 32-bit value where each bit has a status as
shown in Table 5-3 .
To analyse this value you need to convert the digital number to a binary number end then read the individual bit that is
set. For example if Record State is 524289 like in Figure 5-9 then the corresponding bit pattern is
0010000000000000000001 which means that bit 0 and bit 19 is set. If we then check this bits in Table 5-3 we see that
bit 0 indicate that the orientation set in configuration, Upside Down disabled does not match with the orientation
measured by the sensor. Bit 19 indicates that the sensor is pinging in air.
Table 5-3: Record State parameter explained;
Record State bits Meaning
Bit no Bit pattern (x don’t care)
Bit 0 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1 Orientation mismatch, configuration vs measurement
1)
Bit 1 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1x High ambient noise measured on Beam 1
2)
Bit 2 xxxxxxxxxxxxxxxxxxxxxxxxxxxxx1xx Higher ambient noise measured on Beam 1
2)
Bit 1,2 xxxxxxxxxxxxxxxxxxxxxxxxxxxxx11x Even higher ambient noise measured on Beam 1
2)
Bit 3 xxxxxxxxxxxxxxxxxxxxxxxxxxxx1xxx High ambient noise measured on Beam 2
3)
Bit 4 xxxxxxxxxxxxxxxxxxxxxxxxxxx1xxxx Higher ambient noise measured on Beam 2
3)
Bit 3,4 xxxxxxxxxxxxxxxxxxxxxxxxxxx11xxx Even higher ambient noise measured on Beam 2
3)
Bit 5 xxxxxxxxxxxxxxxxxxxxxxxxxx1xxxxx High ambient noise measured on Beam 3
4)
Bit 6 xxxxxxxxxxxxxxxxxxxxxxxxx1xxxxxx Higher ambient noise measured on Beam 3
4)
Bit 5,6 xxxxxxxxxxxxxxxxxxxxxxxxx11xxxxx Even higher ambient noise measured on Beam 3
4)
Bit 7 xxxxxxxxxxxxxxxxxxxxxxxx1xxxxxxx High ambient noise measured on Beam 4
5)