GE BAKER HUGHES DPS 5000 Series, Руководство пользователя

Страница: 28 / 36

20 May 2015 K0582 Revision B
Bit 7
Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
K
P( IJ )
[7..0]
R/W-X
Bit 31–0 K
P( IJ )
[31..0]: Read only
0x n..n Number type float
Addresses 158-187 - Temperature coefficients 3.3.31
The temperature coefficient registers contain a total of (
I +1)*( J +1) contiguous temperature
coefficients where I and J represent the values of the TP_FIT(7..0] and TT_FIT[7..0] bits of the
COEF_DIM register (address 67). Each coefficient register is bit mapped as follows:
Bit 31 Bit 30 Bit 29 Bit 28 Bit 27 Bit 26 Bit 25 Bit 24
K
T( IJ )
[31..24]
R/W-X
Bit 23
Bit 22 Bit 21 Bit 20 Bit 19 Bit 18 Bit 17 Bit 16
K
T( IJ )
[23..16]
R/W-X
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
K
T( IJ )
[15..8]
R/W-X
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
K
T( IJ )
[7..0]
R/W-X
Bit 31–0 K
T( IJ )
[31..0]: Read only
0x n..n Number type float
4
Operational description
Operational states 4.1
The basic operational states of the DPS 5000 sensor are shown in Figure 6.
Figure 6 Operational states
When power is first applied, the sensor enters the power-up state. Whilst in this
state the sensor is unresponsive to I 2 C-bus activity and user interaction with the
sensor is not possible. After the power-up checks have been completed the sensor
automatically enters the acquire state in which the sensor obtains pressure and
temperature data. User interaction with the sensor is now possible but the pressure
and temperature data will not be available until after the sensor acquisition time
and the sensor enters the stand-by state. The sensor will remain in the standby
state until either: