background image

© 2010 Baker Hughes, a GE company – All rights reserved.

8000/8100/8200 Series Instruction Manual-English | 35

Appendix B.  RPS EEPROM Format

The EEPROM device in the RPS 8XXX Series is a Microchip 11LC040. The data sheet can be 
downloaded from the Microchip website:

http://www.microchip.com

Only the first 511 bytes of memory are defined as follows:

Table B-1: EEPROM Format

Address

Size

(Bytes)

Field Name

Contents

(Default)

Format

(Dec)

(Hex)

0

0000

1

Data field format code

1

8 bit Integer

2

0002

4

Serial Number

 

32-bit Integer

8

0008

16

Product ID Code

RPS 8000

ASCII Text

40

0028

2

Transducer Type Identifier

&h 1F40

16 bit Integer

44

002C

1

Day of calibration - dd

 

8 bit Integer

45

002D

1

Month of calibration - mm

 

8 bit Integer

46

002E

1

Year of calibration - yy

 

8 bit Integer

52

0034

4

Customer Offset term

0

32 bit IEEE

56

0038

4

Customer Gain term

1

32 bit IEEE

64

0040

4

Upper pressure range

 

32 bit IEEE

68

0044

4

Lower pressure range

 

32 bit IEEE

72

0048

1

Pressure units code

 

8 bit Integer

73

0049

1

Sensor type Absolute/Gauge

0 / 1

8 bit Integer

80

0050

1

Number of pressure coefficients

 

8 bit Integer

81

0051

1

Number of temperature 

coefficients

 

8 bit Integer

128

0080

4

X - Frequency datum

 

32 bit IEEE

132

0084

4

Y - Temperature datum

 

32 bit IEEE

136

0088

4

K00

 

32 bit IEEE

140

008C

4

K01

 

32 bit IEEE

144

0090

4

K02

 

32 bit IEEE

148

0094

4

K03

 

32 bit IEEE

152

0098

4

K04

 

32 bit IEEE

156

009C

4

K10

 

32 bit IEEE

160

00A0

4

K11

 

32 bit IEEE

Содержание Baker Hughes 8000 Series

Страница 1: ...bhge com BHGE Data Classification Public 8000 8100 8200 Series Trench Etched Resonant Pressure Sensor Instruction Manual...

Страница 2: ......

Страница 3: ...ect the user and the equipment from injury or damage Use qualified personnel and good engineering practice for all procedures in this publication Toxic Materials There are no known toxic materials use...

Страница 4: ...zardous operation This symbol indicates do not throw away in domestic bin hazardous material dispose correctly in accordance with local regulations Abbreviation Description a Absolute ASCII American S...

Страница 5: ...ater mHg Metre of mercury mm Millimetre mmH2O Millimetres of water mmHg Millimetre of mercury MPa Megapascal M Mega ohm n a Not applicable Pa Pascal PIN Personal identification number ppm Parts per mi...

Страница 6: ...iv 8000 8100 8200 Series Instruction Manual English 2010 Baker Hughes a GE company All rights reserved...

Страница 7: ...he Diode Voltage 5 2 3 Calculating Pressure 5 2 4 Stored Coefficients 6 3 DPS Pressure Measurement 9 3 1 Serial Data Communications Settings 9 3 2 Applications 9 3 3 RS 485 Connections 9 3 4 RS 232 Co...

Страница 8: ...21 4 7 1 C User Calibration 21 4 7 2 H Change Slope 23 4 7 3 M User Message 24 4 7 4 O Communication Settings 24 4 7 5 P Change PIN 26 4 7 6 S Set Offset 27 4 8 Factory Commands Query Only 28 4 8 1 E...

Страница 9: ...is not a harsh media isolated product The pressure media comes directly into contact with the sensor chip Care must be taken to ensure the pressure media does not damage the sensor chip There is negl...

Страница 10: ...tion complies with Regulation EC No 1272 2008 Statements comply with Pressure Equipment Directive 2014 68 EU 1 4 Pressure Containment The pressure containment of the TERPS sensors is shown in Table 1...

Страница 11: ...includes a Virtual Instrument to discover a sensor s address Example code snippets are supplied with the driver The LabVIEW driver is plug and play compatible with the USB sensor A USB to RS 485 adapt...

Страница 12: ...Chapter 1 Installation 4 8000 8100 8200 Series Instruction Manual English 2010 Baker Hughes a GE company All rights reserved...

Страница 13: ...5 Hz to allow the sensor to meet quoted specification To make sure the calculated output is correct the measurement device should be regularly calibrated refer to the manufacturer s instructions again...

Страница 14: ...ure normalizing factor y Temperature signal in mV Y Temperature normalizing factor Table 2 1 Sample Coefficients Sample Coefficients Sample Coefficients Coefficient Value Coefficient Value K00 9 17362...

Страница 15: ...ny All rights reserved 8000 8100 8200 Series Instruction Manual English 7 The internal EEPROM is only available on some electrical connector variants of the RPS 8XXX series see data sheet or calibrati...

Страница 16: ...Chapter 2 RPS Pressure Measurement 8 8000 8100 8200 Series Instruction Manual English 2010 Baker Hughes a GE company All rights reserved...

Страница 17: ...a single transducer directly connected to a serial interface It can also be part of a network of devices using the programmed addressing facility 3 2 Applications The sensor may be used as a single tr...

Страница 18: ...ii ve supply iii 0V supply iv RS 232 Rx Note For electrical connections refer to the sales data sheet Figure 3 3 RS 232 Direct Connection 3 5 USB Connection Standalone USB electrical connection Figur...

Страница 19: ...s each cycle delivers new values of frequency and temperature See Section 4 4 on page 15 for instructions on how to read a pressure measurement from the transducer 3 7 Factory Defaults Transducers are...

Страница 20: ...Chapter 3 DPS Pressure Measurement 12 8000 8100 8200 Series Instruction Manual English 2010 Baker Hughes a GE company All rights reserved...

Страница 21: ...y iv The A command causes units to be printed after the pressure reading v All LF characters are removed from the incoming string before processing so CR CRLF The number of line terminating CR or LF c...

Страница 22: ...2 2 Addressed Mode The valid address in addressed mode is a number between 1 and 32 In this mode data has to be polled from the transducer using the valid address All devices on the network respond to...

Страница 23: ...te of one reading every 3 seconds Command SPACE A 3 CR 4 3 2 Addressed Mode Syntax In this mode an address field must be added to the start of the general format as follows Command SPACE Address Comma...

Страница 24: ...mes the current measurement interval set by the Q command Command SPACE G CR Reply Pressure reading Units CR Result Transmission of the reading takes 1 5 times the current measurement interval set by...

Страница 25: ...rMessage Units PinSet Y N User Zero Y N User Full scale Y N Sensor Serial Number Checksum CR Command SPACE I CR or SPACE I CR Reply Unit Type Unit type Serial Number Serial Number CR Style Style CR Mi...

Страница 26: ...terval seconds in the format set in the set up commands The interval input is non volatile Command SPACE A Interval CR Reply None in network mode Reply In direct mode Pressure reading Units CR Result...

Страница 27: ...ror messages Command SPACE N 0 CR Reply n a Result Changes to long error messages In the example command below the transducer at address 1 is change to long error messages Command SPACE 1 N 1 CR Reply...

Страница 28: ...sure units of the transmitted reading Query SPACE U CR Reply Unit number CR Command SPACE U CR Reply Interactive Current units are Units unit number CR Table 4 3 Measure Speed Setting Q Command Settin...

Страница 29: ...7 1 C User Calibration This command allows the user to perform a two point calibration on the output of the device The calibration routine requires two pressures to be applied within the operating ex...

Страница 30: ...hese values Y N Enter Y or N Y answered EEPROM updated CR N answered Current settings left unchanged CR If invalid data entered 023 Bad Cal Pres CR Command SPACE C PIN mode CR Non interactive calibrat...

Страница 31: ...the H value is changed the slope pivots around zero If H remains the same slope and the S value is changed the whole slope goes higher or lower by the S value Command SPACE H PIN Pressure CR Reply n a...

Страница 32: ...ssage but not stored in memory Attempting to store the colon character causes an error 022 Bad Message Command SPACE M PIN Message CR Reply n a Command SPACE M PIN Message CR Reply n a Query SPACE M C...

Страница 33: ...nd SPACE O PIN Baud Rate Parity Character Length Stop Bits Software Handshaking Number of Termination Characters CR Reply n a Query SPACE O CR Reply Baud Rate Parity Character Length Stop Bits Softwar...

Страница 34: ...of termination characters Reply Accept these values Y N Enter Y or N Y answered EEPROM updated CR N answered Current settings left unchanged CR Result These settings take effect after switching off th...

Страница 35: ...re details Command SPACE S PIN Pressure CR Reply n a Result The transducer stores the value set with the S command in non volatile memory Query SPACE S CR Reply Off set Set point CR Query SPACE S CR R...

Страница 36: ...SPACE E CR Reply Reference Frequency CR Query SPACE E CR Reply Reference Frequency Reference Frequency kHz CR 4 8 2 L Load Calibration Coefficients This direct mode only command queries the calibratio...

Страница 37: ...on CR Query SPACE T CR Reply Diode Cal Diode Calibration CR 4 8 4 V Transducer Type and Settings This direct mode only command queries the transducer type pressure range and serial number Command n a...

Страница 38: ...te 2 Byte 3 Byte 4 Byte5 Byte 6 Byte 510 Byte 511 CR Query SPACE W CR Reply 000 Byte 0 Byte 1 Byte 15 CR 010 Byte 16 Byte 17 Byte 31 CR 0F0 Byte 240 Byte 241 Byte 255 CR CR Send CR to continue CR Wait...

Страница 39: ...le A 1 on page 33 4 9 2 Transducer Fault A transducer fault sends an error message blocking the transmission of pressure data and sending the fault message in place of data An applied pressure 5 of sp...

Страница 40: ...Chapter 4 Programming Guide 32 8000 8100 8200 Series Instruction Manual English 2010 Baker Hughes a GE company All rights reserved...

Страница 41: ...equired parameters missing from command string Check command string sent 010 Invalid PIN Incorrect PIN for the command sent Check command string sent 011 Bad Value Out of range value sent to the trans...

Страница 42: ...he specified time 020 No Frequency Change of measurement speed see Section 4 6 3 on page 19 Wait for 2 seconds if fault remains return to GE for repair or replacement 021 Bad Checksum Error occurred i...

Страница 43: ...nteger 44 002C 1 Day of calibration dd 8 bit Integer 45 002D 1 Month of calibration mm 8 bit Integer 46 002E 1 Year of calibration yy 8 bit Integer 52 0034 4 Customer Offset term 0 32 bit IEEE 56 0038...

Страница 44: ...2 bit IEEE 196 00C4 4 K30 32 bit IEEE 200 00C8 4 K31 32 bit IEEE 204 00CC 4 K32 32 bit IEEE 208 00D0 4 K33 32 bit IEEE 212 00D4 4 K34 32 bit IEEE 216 00D8 4 K40 32 bit IEEE 220 00DC 4 K41 32 bit IEEE...

Страница 45: ...list of available values for 0048 Hex pressure unit code are shown in Table B 3 Table B 2 Number Formats Format Description 8 bit Integer Signed integer 16 bit Integer Signed integer MSB in lowest add...

Страница 46: ...Appendix B RPS EEPROM Format 38 8000 8100 8200 Series Instruction Manual English 2010 Baker Hughes a GE company All rights reserved...

Страница 47: ......

Страница 48: ...om Milan Phone 39 02 36 04 28 42 Email mariangela scarati bhge com Chuo ku Tel 03 6890 4538 Email gesensing japan bhge com Netherlands Russia UK Hoevelaken Phone 31 334678950 Email NL sensing sales bh...

Отзывы: