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K0582 Revision B 

May 2015 

addressed register.  As the sensor registers are 32 bits wide, the read and write 
transfers are generally 4 bytes long.  However, 1, 2 or 3 byte transfers are allowed. 

 

Memory map 

3.2

The DPS 5000 sensor registers are mapped within a 1 kbyte memory space.  As each 
register is 4 bytes wide, the register addresses range from 0 to 255.  Not all the 

address space is available to the user, some addresses are reserved whilst others 
are unused.  The reserved addresses cannot be written to and read as 0x00000000.  
Unused addresses cannot be written to and read as 0xFFFFFFFF. 
The registers are grouped into 3 blocks: volatile data, configuration data and 
coefficient data as shown in Table 3. 

Volatile data 

Configuration data 

Coefficient data 

Addr 

Register 

Addr 

Register 

Addr 

Register 

STATUS 

64 

Reserved 

128 

Up to 30 

pressure 

coefficient 

registers 

COMP_PRES 

65 

Reserved 

COMP_TEMP 

66 

I2C_ADDR 

ADC_PRES 

67 

COEF_FIT 

ADC_TEMP 

68 

GAIN_ADJ 

ACCESS 

69 

OFFSET_ADJ 

MVOLT_PRES 

70 

MAX_RANGE 

MVOLT_TEMP 

71 

MIN_RANGE 

Reserved 

72 

CAL_DATE 

157 

73 

MAX_ADC_PRES 

158 

Up to 30 

temperature 

coefficient 

registers 

74 

MIN_ADC_PRES 

75 

MAX_ADC_TEMP 

76 

MIN_ADC_TEMP 

77 

SERIAL 

78 

CONFIG 

79 

VERSION 

80 

Reserved 

81 

Reserved 

82 

AVERAGE 

187 

83 

PRES_CONV 

188 

Unused 

84 

PRES_UNIT 

85 

DELAY 

86 

SPEC_DWG 

87 

TARE_VALUE 

88 

Reserved 

63 

Reserved 

127 

Reserved 

255 

Unused 

Table 3 

Memory map

 

 

Register descriptions 

3.3

 

Register bit table legend 

3.3.1

The legend used for the bit tables within this section is shown in Figure 5. 

Содержание BAKER HUGHES DPS 5000 Series

Страница 1: ...GE Measurement Control DPS 5000 Series Sensors I2C bus Pressure Transducer User Manual K0582 English...

Страница 2: ...Druck Ltd Fir Tree Lane Groby Leicester LE6 0FH UK Tel 44 0 116 231 7100 Fax 44 0 116 231 7103 2015 General Electric Company All rights reserved...

Страница 3: ...ols to carry out required work on this sensor Pressure Do not apply pressure greater than the maximum safe working pressure to the sensor Toxic materials There are no known toxic materials used in the...

Страница 4: ...nt bit byte mbar Millibar mH2O Metre of water mmHg Millimetre of Mercury mmH2O Millimetre of water MPa MegaPascal ms Millisecond MSB Most significant bit byte PCB Printed circuit board psi Pound per s...

Страница 5: ...K0582 Revision B May 2015 iii References Reference 1 I2C bus specification and user manual NPX Semiconductor UM10204 Rev 6 available from www nxp com...

Страница 6: ...ress 7 MVOLT_TEMP 10 3 3 9 Address 66 I2C_ADDR 10 3 3 10 Address 67 COEF_FIT 11 3 3 11 Address 68 GAIN_ADJ 11 3 3 12 Address 69 OFFSET_ADJ 12 3 3 13 Address 70 MAX_RANGE 12 3 3 14 Address 71 MIN_RANGE...

Страница 7: ...emperature SNR 25 4 4 6 Maximising the update rate 26 4 4 7 Pressure re calibration 26 4 4 8 5 Maintenance 27 Cleaning 27 5 1 Adjustment 28 5 2 Repair 28 5 3 Disposal 28 5 4 Annex A Unit of pressure c...

Страница 8: ...vi May 2015 K0582 Revision B Page left intentionally blank...

Страница 9: ...ensors General view The DPS 5000 series sensors are low powered devices offering a high level of accuracy over a wide temperature range The I2C bus interface provides compensated pressure and temperat...

Страница 10: ...o attain an acceptable temperature in systems where high pressures and high or low temperatures are present CAUTION The sensor contains ESD sensitive devices Whilst the sensor incorporates protection...

Страница 11: ...s part of a network of compatible I2C bus devices CAUTION The DPS 5000 is intended for use within networks operated from a single supply at a voltage within the range 2 7 V to 3 6 V Operation outside...

Страница 12: ...rd mode Supported 10 bit addressing Not supported Fast mode Not supported General call address Not supported Fast mode plus Not supported Clock stretching Supported High speed mode Not supported Softw...

Страница 13: ...ata and coefficient data as shown in Table 3 Volatile data Configuration data Coefficient data Addr Register Addr Register Addr Register 0 STATUS 64 Reserved 128 Up to 30 pressure coefficient register...

Страница 14: ...it 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reserved Reserved WRITE ADC_ON WENB VALID 1 0 CONV R 0 R 0 W 0 R X R 0 R X R X R W X Bit 31 16 Reserved read as 0 Bit 15 14 RESET 1 0 Write only performs...

Страница 15: ...0 Not writable 0b1 Writable Bit 2 1 VALID 1 0 Read only used to indicate the status of the current values held in the COMP_PRES and COMP_TEMP registers addresses 1 and 2 Automatically cleared by readi...

Страница 16: ...it 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 COMP_TEMP 7 0 R X Bit 31 0 COMP_TEMP 31 0 Read only the most recently updated compensated temperature value in C Reading this register whilst the sensor is in the au...

Страница 17: ...address 0 0xn n Number type unsigned word Address 5 ACCESS 3 3 7 Bit 31 Bit 30 Bit 29 Bit 28 Bit 27 Bit 26 Bit 25 Bit 24 ACCESS 31 24 W 0 Bit 23 Bit 22 Bit 21 Bit 20 Bit 19 Bit 18 Bit 17 Bit 16 ACCESS...

Страница 18: ...isters to calculate the values held in the COMP_PRES and COMP_TEMP registers addresses 1 and 2 Reading this register whilst the sensor is in the auto update mode will clear the CONV bit 0 flag of the...

Страница 19: ...3 16 TP_FIT 7 0 Read only the number of pressure related temperature coefficients equal this value 1 0xn n Number type unsigned byte Bit 15 8 PT_FIT 7 0 Read only the number of temperature related pre...

Страница 20: ...s register is used to modify the value of the COMP_PRES register address 1 It is used in conjunction with the GAIN_ADJ register address 68 during user re calibration of the sensor 0xn n Number type fl...

Страница 21: ...d This value may be updated by the user following re calibration of the sensor 0xn n Number type unsigned integer5 Bit 15 8 MONTH 7 0 Read write the month in which the sensor was calibrated This value...

Страница 22: ...0 bit 1 of the STATUS register address 0 will be cleared 0xn n Number type unsigned word Address 75 MAX_ADC_TEMP 3 3 19 Bit 31 Bit 30 Bit 29 Bit 28 Bit 27 Bit 26 Bit 25 Bit 24 MAX_ADC_TEMP 31 24 R X B...

Страница 23: ...1 Bit 30 Bit 29 Bit 28 Bit 27 Bit 26 Bit 25 Bit 24 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved R 0 R 0 R 0 R 0 R 0 R 0 R 0 R 0 Bit 23 Bit 22 Bit 21 Bit 20 Bit 19 Bit 18 Bit...

Страница 24: ...n Number type unsigned byte Bit 7 0 FIELD_4 7 0 Read only fourth software version field 0xn n Number type unsigned byte Address 82 AVERAGE 3 3 24 Bit 31 Bit 30 Bit 29 Bit 28 Bit 27 Bit 26 Bit 25 Bit 2...

Страница 25: ...the value of this register is used to modify the value of the COMP_PRES register address 1 by the converting the value from the manufacturer s pressure units to the user pressure units 0xn n Number ty...

Страница 26: ...X R W X R W X R W X R W X R W X R W X Bit 23 Bit 22 Bit 21 Bit 20 Bit 19 Bit 18 Bit 17 Bit 16 Unused Unused Unused Unused Unused Unused Unused Unused R W X R W X R W X R W X R W X R W X R W X R W X Bi...

Страница 27: ...t 11 Bit 10 Bit 9 Bit 8 TARE_VALUE 15 8 R W X Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 TARE_VALUE 7 0 R W X Bit 31 0 TARE_VALUE 31 0 Read write the value of this register is used to modify the...

Страница 28: ...15 8 R W X Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 KT IJ 7 0 R W X Bit 31 0 KT IJ 31 0 Read only 0xn n Number type float 4 Operational description Operational states 4 1 The basic operational...

Страница 29: ...lculations Unless modified by the user see section 4 4 3 the unit of pressure is that used by the manufacturer during calibration of the sensor and defined in the PRES_UNIT register The unit of temper...

Страница 30: ...difiable registers 4 4 1 The configuration data registers provide information for the user and allow the user to change the functionality of the sensor Table 4 lists the configuration data registers t...

Страница 31: ...he configuration data registers as described in section 4 4 1 iv Reset the sensor Either power cycle the sensor or Write 0b10 to STATUS RESET 1 0 0 15 14 The sensor will now respond to the new I2C bus...

Страница 32: ...actor from Annex A and update the pressure unit conversion factor value Write 14 50377 to PRES_CONV PRES_CONV 31 0 83 31 0 iii Save the new pressure unit conversion factor value to non volatile memory...

Страница 33: ...a high SNR However for very low noise applications the user can modify the contents of the AVERAGE register to increase the SNR of either or both readings at the expense of the sensor acquisition time...

Страница 34: ...set and may result in invalid pressure and temperature data Maximising the update rate 4 4 7 For applications that require the DPS 5000 sensor acquisition time to be faster than is achievable by adju...

Страница 35: ...a registers as described in section 4 4 1 The user may also record the date of re calibration by modifying the date fields of CAL_DATE register For example to change the calibration date to 16th April...

Страница 36: ...accuracy of at least 0 01 of reading Note GE can provide a calibration service that is traceable to international standards Repair 5 3 The DPS 5000 sensors contain no user serviceable items For any r...

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