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Firmware 2.x - HART Field Device Specification

1. The specification is designed to be a technical reference for HART capable Host Application Developers System Integrators and knowledgeable End Users It also provides functional specifications e g commands enumerations and performance requirements used during Field Device development maintenance and testing This document assumes the reader is familiar with HART Protocol requirements and terminology 1 4 Abbreviations and definitions ADC Analog to Digital Converter CPU Central Processing Unit of microprocessor DAC Digital to Analog Converter EEPROM Electrically Erasable Read Only Memory 1 5 References HART Smart Communications Protocol Specification HCF_SPEC 12 Available from the HCF MFT B Installation Manual Document 360209 A Available from Kurz Instruments Inc Revision A Release Date 6 30 2010 Page 5 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 2 DEVICE IDENTIFICATION Manufacturer Name Kurz Instruments Model Name s MFT B Series Inc 454FTB 504FTB 534FTB KBAR 2000B Manufacture ID Code 24623 0x602F Device Type Code 57559 0xE0D7 HART Protocol Revision 7 0 Device Revision Number of Device Variables 6 Physical Layers Supported FSK Physical Device Category Transmitter Non DC isolated Bus Device 3 PRODUCT OVERVIEW The MFT B Series Mass Flow Transmitter MFTB is an insertion or inline flow transmitter th
2. Revision A Release Date 6 30 2010 Page 7 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 1 247 SV Secondary Variable SCFM 67 usually Average SCFH PPM Velocity PPH SLPM SCMH KGM KGH SFPM SMPS 2 248 TV Process Temperature degF degC 64 3 249 QV Totalized Flow Rate Cubic Ft 71 Pounds Liters Cubic Meter Kilograms Feet Meter 244 Percent Range Output FS None 12 245 Loop Current Analog Out mA mA 12 6 DYNAMIC VARIABLES The following Table lists the Dynamic Variables that are implemented Description Units Flow Rate or Average Velocity SCFM SCFH PPM PPH SLPM SCMH KGM KGH SFPM SMPS Flow Rate or Average Velocity SCFM SCFH PPM PPH SLPM SCMH KGM KGH SFPM SMPS Temperature of the process gas degC degF Totalized Flow Cubic Ft Pounds Liters Cubic Meter Kilograms Feet Meter PV is mapped to either Flow Rate or Average Velocity depending on the selection of PV units SV is mapped to Flow Rate or Average Velocity depending on which value is mapped to PV ie if PV is mapped to Flow Rate SV will be mapped to Average Velocity if PV is mapped to Average Velocity SV will be mapped to Flow Rate Revision A Release Date 6 30 2010 Page 8 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specificati
3. Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 16 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 2 Command 129 Write Correction Factor Data Writes the Field Calibration Correction Factor and the 8 set s of Variable Correction Factors VCF from the device Request Data Bytes Byte Format Description 0 Enum Correction Factor Unit Code see Section 11 1 1 4 Float Field Calibration Correction Factor 5 Unsigned 8 Number of Variable Correction Factor Data Sets configured for use 6 9 Float Data Point 1 Reference Flow or Velocity 10 13 Float Data Point 1 Observed Flow or Velocity 14 17 Float Data Point 2 Reference Flow or Velocity 18 21 Float Data Point 2 Observed Flow or Velocity 22 25 Float Data Point 3 Reference Flow or Velocity 26 29 Float Data Point 3 Observed Flow or Velocity 30 33 Float Data Point 4 Reference Flow or Velocity 34 37 Float Data Point 4 Observed Flow or Velocity 38 41 Float Data Point 5 Reference Flow or Velocity 42 45 Float Data Point 5 Observed Flow or Velocity 46 49 Float Data Point 6 Reference Flow or Velocity 50 53 Float Data Point 6 Observed Flow or Velocity 54 57 Float Data Point 7 Reference Flow or Velocity 58 61 Float Data Point 7 Observed Flow or Velocity 62 65 Float Data Point 8 Reference Flow or Velocity 66
4. Undefined o o caf oea S Revision A Release Date 6 30 2010 Page 35 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification 11 TABLES 11 1 MFTB FaultIndex bit definition Bit Definition 0 RP resistance above high limit 1 RP resistance below low limit 2 RTC resistance above high limit 3 RTC resistance below low limit 4 Wire Resistance above high limit 5 Sensor RPS lead open circuit 6 High sensor or wire leakage current S GND below 100k ohms 7 Flow rate above design limit 8 Undefined 9 Undefined 10 ADC failed to convert data 11 Sensor control stop responding 12 Sensor control crowbar engaged 13 Sensor type does not match config 14 Abnormal sensor node voltages 15 Unable to write new config file 16 Sensor type does not match board 17 27 Undefined 28 HART Warning Subsystem Fail 29 Sensor leak warning S GND below 100k ohms 30 Power was applied momentary 31 Change made to the configuration momentary 11 2 MFTB OperationStatus bit definition HART FDS Bit Definition Conditions to set bit 0 0x01 Device in diagnostic mode SensorTestFlag is set 1 0x02 Device in current loop mode HART LoopCurrentMode amp 0x80 Il cHartCurrentControlFlag 2 0x04 Device Fault Any bit in FaultIndex is set except POWER_ON Bit 30 or CONFIG_CHANGE Bit 31 Revision A Rele
5. 1 Local Controls And DISPO E 7 5 Device Y aniables siusis A eet ee a ele RG ee b ES aiiai 7 6 Dynamie V aables oi AS 8 Le Status Informal is pita 9 Tk te A A E A A nara i eas 9 1 2 extended Device SAUS ii A tea ied 10 7 3 Additional Device Status Command 48 ccccccssssceccceceesessnsecececeeseeessrseseeeseeeeeenes 11 8 Umversal Commands cuicos id ated nde heehee 13 9 ACOmmIOn Practice COMAS et baand lames 13 9 1 Supported Commands sseni i ario iaa ia ir 13 972 B rst Mode dt de e 13 93 Catch Device Variable auna lille 13 10 Devices peca Commands irie a adi 14 10 1 Command 128 Read Correction Factor Data eee eesecsssecsseceseeeeseecnaeceseenseeesaeeesaeenes 15 Revision A Release Date 6 30 2010 Page 2 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 2 Command 129 Write Correction Factor Data ee eeseesseceseeeseceeseecaeceseesseeesneeenaeones 17 10 3 Command 130 Read Current Correction Factor ssesseseseseesesseesreeressersresreestesrerrreseeseeee 19 104 Command 131 Read Plow ATed s a A Eia 20 10 5 Command 132 Write Plow ATC as a a ee BAe A 21 10 6 Command 133 Read Last Cal Date cinco ol idol 22 10 7 Command 137 Read Purge Parameters sisi at 23 10 8 Command 138 Write Purge ParameterS oooooconncccnnncccnoncccnnnnnonnnanonnnncnnnncncnnnncnnnnccnnnnccnannnos 24 10 9 Command 139 Start Purse El A a 26 10 10 Command 140 Read
6. 30 2010 Page 41 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification ANNEX C REVISION HISTORY Al Rev 1 0 Initial Release June 28 2010 Revision A Release Date 6 30 2010 HART FDS Page 42 of 42
7. 69 Float Data Point 8 Observed Flow or Velocity Response Data Bytes Byte Format Description 0 Enum Correction Factor Unit Code see Section 11 1 1 4 Float Field Calibration Correction Factor 5 Unsigned 8 Number of Variable Correction Factor Data Sets configured for use Revision A Release Date 6 30 2010 Page 17 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS Reference Flow or Velocity 10 13 Float Data Point 1 Observed Flow or Velocity 14 17 Float Data Point 2 Reference Flow or Velocity 18 21 Float Data Point 2 Observed Flow or Velocity 22 25 Float Data Point 3 Reference Flow or Velocity 26 29 Float Data Point 3 Observed Flow or Velocity 30 33 Float Data Point 4 Reference Flow or Velocity 34 37 Float Data Point 4 Observed Flow or Velocity 38 41 Float Data Point 5 Reference Flow or Velocity 42 45 Float Data Point 5 Observed Flow or Velocity 46 49 Float Data Point 6 Reference Flow or Velocity 50 53 Float Data Point 6 Observed Flow or Velocity 54 57 Float Data Point 7 Reference Flow or Velocity 58 61 Float Data Point 7 Observed Flow or Velocity 62 65 Float Data Point 8 Reference Flow or Velocity 66 69 Float Data Point 8 Observed Flow or Velocity 6 9 Float Data Point 1 Command Specific Response Codes a mema SSCS Fe sf ed S ESA oe S R
8. Configuration o 41 Revision A Release Date 6 30 2010 Page 3 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS Annex C A bs tal acsuetanastantovecandcaectas n ESE Revision A Release Date 6 30 2010 Page 4 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 1 INTRODUCTION 1 1 Scope This document describes the function performance and operating procedures for the Kurz Instruments Inc Model MFT B Series with HART protocol The HART version uses the same mass flow measurement methodology as the MFT B Series therefore this manual describes only the functions unique to the HART communication interface The Kurz Instruments Inc Thermal Mass Flow Transmitter Model MFT B Series complies with HART Protocol Revision 7 0 This document specifies all the device specific features and documents HART Protocol implementation details e g the Engineering Unit Codes supported The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications 1 2 Purpose This specification is designed to compliment other documentation e g the MFT B Series Installation Manual by providing a complete unambiguous description of this Field Device from a HART Communication perspective 1 3 Who should use this document
9. Mid Span Drift Check Parameters Writes the Zero Mid Span Drift Check parameters from the device The Drift Check parameters include the ON OFF status of the Auto Drift Check the Time Interval of the Auto Drift Check and for each of the Drift Check Tests the of FS drive voltage and test duration See Section 10 10 for detailed description of the Drift Check Parameters Request Data Bytes Byte Format Description 0 Unsigned 8 Auto Drift Check ON OFF 0 OFF 1 ON 1 2 Unsigned 16 Auto Drift Check Time Interval 3 6 Float Zero Drift Check Full Scale 19 20 Unsigned 16 Span Drift Check Duration Response Data Bytes 19 20 Unsigned 16 Span Drift Check Duration Command Specific Response Codes 0 Success No Command Specific Errors 1 2 Undefined Too few data bytes received Revision A Release Date 6 30 2010 Page 28 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS ed SSS S ven O oee s oee o a ed a oea S Revision A Release Date 6 30 2010 Page 29 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 12 Command 142 Read Zero Mid Span Drift Check Results Reads the Zero Mid Span Drift Check results of the last Drift Check Test run The Drift Check Results include the VCal Input and the corresponding output of the ADC during the Drift Check Test as well as
10. ON 1 Unsigned 8 Assigned Digital Output for the Air Purge Sensor Cleaning System 2 3 Unsigned 16 Purge Width 4 5 Unsigned 16 Purge Hold Time 6 9 Unsigned 32 Purge Interval Command Specific Response Codes ma s ed S Revision A Release Date 6 30 2010 Page 24 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 17 31 Undefined 33 127 Undefined Revision A Release Date 6 30 2010 Page 25 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 9 Command 139 Start Purge Cycle Sends a request to the device to start a Purge Cycle The device must be configured with the Air Purge Cleaning System and digital output 2 DO2 must be assigned to this function NOTE The device does not check if the Purge is configured when this command is received it will always respond with success even if the Purge is not configured Request Data Bytes Byte Format Description None Response Data Bytes Byte Format Description Command Specific Response Codes 0 Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 26 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 10 Command 140 Read Zero Mid Span Drift Check Parameters Reads the Zero Mid Span Drift Check parameters from the devic
11. Zero Mid Span Drift Check Parameters oooonncccnnoccccnocccnnnnccnnnnnss 27 10 11 Command 141 Write Zero Mid Span Drift Check Parameters ooooccnnoconoccnoccnonancnncnnno 28 10 12 Command 142 Read Zero Mid Span Drift Check Results oooonnnoccnnonccinncccnoncccnnnnnss 30 10 13 Command 143 Start Zero Mid Span Drift Check Test ooooconnnocccnoncccnonccononcconnncnnnnnnos 31 10 14 Command 144 Read Diagnostic Data ooooocnnncccnnococnoncccnoncnononanonononononanonnnccnonnc cnn ncnnnnnnos 32 10 15 Command 145 Reset Totalizer sil o aa ea RRT E 33 10 16 Command 146 Read Standard Conditions eeseseseesessessseesessessresressersresreeseesresressresese 34 10 17 Command 147 Write Standard Conditions eesessseeseeseseseesessessresressersrerrresersrererssreseese 35 11 Tables 36 Let MP TB Bau ltincdex Biter One ennen eiee n a A AEE 36 11 2 MFTB OperationStatus bit defi A ect ee nae 36 12 BESAN Mr ce Bac A eB RTS A AAA A a ATA Sd LA SAMA RA e Soto 37 1225 POWS EDO Pr A id 37 A e e E EAT EE EEE 37 IZA SE TeSt in A e ee ee ae a Ree ee 38 12 5 Command Resposta ds cas 38 126 Busy and Delayed Response tii a E 39 EN A wastes esos aes ocedtacuss E A E E tse cence tases asd eect esas E TE 39 12 9 Non Volatile MEDIA AS elie ie ded vases AA 39 A inna a a aN E TA E RENS 39 1210 Write Protections eioi snn id 39 A t MD GAN NES i do acca O e 39 AnnexA Capability Checklists inei a cn lis E ait te hase A GIG Sill R 40 Annex B Default
12. the Difference between these two values Request Data Bytes Byte Format Description None Response Data Bytes Byte Format Description 0 3 Float VCal Input used for the Zero Drift Check Test 4 7 Float VCal Output for the Zero Drift Check Test 8 11 Float Percent Difference between VCal In and VCal Out for the Zero Drift Check Test 12 15 Float VCal Input used for the MidSpan Drift Check Test 16 19 Float VCal Output for the MidSpan Drift Check Test 20 23 Float Percent Difference between VCal In and VCal Out for the MidSpan Drift Check Test 24 27 Float VCal Input used for the FullSpan Drift Check Test 28 31 Float VCal Output for the FullSpan Drift Check Test 32 35 Float Percent Difference between VCal In and VCal Out for the FullSpan Drift Check Test Command Specific Response Codes 0 Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 30 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 13 Command 143 Start Zero Mid Span Drift Check Test Sends a command to start a Zero Mid Span Drift Check Test The command includes a Drift Check Command Code specifier that defines which Drift Check Test to run The valid values are 0x01 Zero Drift Check Test 0x02 Mid Span Drift Check Test 0x04 Full Span Drift Check Test 0x08 Run All Drift Check Tests Note The device does not check if an invalid command
13. 2 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 6 Command 133 Read Last Cal Date Reads the Last Calibration Date from the device The device returns the Last Calibration Date as a date string in the form MM DD YYYY Request Data Bytes Byte Format Description None Response Data Bytes Byte Format Description 0 17 Latin 1 Last Calibration Date Command Specific Response Codes 0 Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 22 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 7 Command 137 Read Purge Parameters Reads the Purge Parameters from the device The Purge parameters include the Purge Timer Purge Assigned DO Purge Width Purge Hold Time Purge Interval The Purge Timer sets the automatic purge feature ON or OFF The state of the purge timer does not affect the ability to initiate a purge cycle using device specific command 139 The Purge Assigned Digital Output DO is a fixed assignment and cannot be changed It is always setup as DO2 The data is for informational purposes only The Purge Width is the time in milliseconds that the device will hold the purge solenoid open when a purge cycle is initiated The Purge Hold Time is the time to allow the sensor to recover following a purge The Purge Hold Time entered is the total ti
14. Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS HART Field Device Specification Kurz Instruments Inc MFT B Series Document 360209 AQ rev A Initial release 30 June 2010 Current release 30 June 2010 Kurz Instruments Inc 2411 Garden Road Monterey CA 93940 U S A HART is a registered trademark of the HART Communication Foundation Revision A Release Date 6 30 2010 Page 1 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS TABLE OF CONTENTS Vig IMtrOdUCHON usura iia 5 Lalo SEP A a 5 12 PUPS nn oni R waste aes soe dat eg shad ses eae Oe Le pes 5 1 3 Who should use this document lt s 2r Nett a eee aed it patent Meee cee ace 5 1 4 Abbreviations and definitions ci tt 5 Ms Referees oie ssai eeano e a aaa ASEN ADSS EEr TRESS Aea south ala 5 Ze Device Identification inasnan nnn anaiss ea pad lab nea a ad 6 Da AR ea a a A E ar ln atl aa a ns Rene 6 4 Product Interact Gogeed Bead elt oes eae brie a tea thee aes S ee ee eee aces 6 AA A eval done teas Set ths ted Paces gret ele ue e 6 4 1 1 sensor Input Channels ii aida 6 4 2 A aa A O A gh del Ses Nard eet 6 4 2 1 Analog Output Channel lidiar nicada oasis sedvecbanonanets 6 ADD Discrete QUIpuis updated 7 4 3 Local Interfaces Jumpers And Switches cic sccccesssccsascecieccetystceeasacesececs sndecdesaledantasosbaacosateders 7 4 3
15. MFTB Alarm 2 6 7 Undefined n id Specific Status 5 0 Zero Drift Test in progress 1 Mid span Drift Test in progress 2 Full span Drift Test in progress 3 Drift Check Cycle All Tests 4 Purge Start Flag 5 7 Undefined Byte 6 0 Maintenance Required Extended Device Status 1 Device Variable Alert See Section 7 2 2 7 Undefined Byte 7 NOT USED Undefined Device Operating Mode by MFTB Byte 8 NOT USED Undefined Standardized Status 0 by MFTB Undefined bits are always set to 0 The bits in the FaultIndex are set or cleared by the self test executed at power up or following a reset or self test command They are also set by any error failure detected during continuous self testing while the flow meter is operational Revision A Release Date 6 30 2010 Page 12 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 8 UNIVERSAL COMMANDS All Universal Commands are implemented as specified in the HART Universal Command Specification HCF_SPEC 127 including Command 38 Reset Configuration Changed Flag and Command 48 Read Additional Device Status Command 3 Read Dynamic Variables and Loop Current returns PV SV TV Temperature QV Totalized Flow for a total of 24 bytes of response data Command 9 Read Device Variables with Status the following Device Variable Codes are applicable 00 PV 01 SV 02 TV 03 QV 9 COMMON
16. PRACTICE COMMANDS 9 1 Supported Commands The following common practice commands are implemented 34 Write PV Damping Value 35 Write PV Range Values 36 Set PV Upper Range Value 37 Set PV Lower Range Value 40 Enter Exit Fixed Current Mode 41 Perform Device Self Test 42 Perform Master Reset 44 Write PV Units 45 Trim AO1 DAC Zero 46 Trim AO1 DAC Span 9 2 Burst Mode This Field Device does not support Burst Mode 9 3 Catch Device Variable This Field Device does not support Catch Device Variable Revision A Release Date 6 30 2010 Page 13 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 DEVICE SPECIFIC COMMANDS The following device specific commands are implemented 128 129 130 131 132 133 137 138 139 140 141 142 143 144 145 146 147 Read Correction Factor Data Write Correction Factor Data Read Current Correction Factor Read Flow Area Write Flow Area Read Last Cal Date Read Purge Parameters Write Purge Parameters Start Purge Cycle Read Zero Mid Span Drift Check Parameters Write Zero Mid Span Drift Check Parameters Read Zero Mid Span Drift Check Results Start Zero Mid Span Drift Check Test Read Diagnostic Data Reset Totalizer Read Standard Conditions Write Standard Conditions Revision A Release Date 6 30 2010 Page 14 of 42 Kurz Instruments Inc Document 360209 AQ Document Ti
17. ase Date 6 30 2010 Page 36 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 3 0x08 4 20mA output is saturated 4 20mA signal is set to Low High saturation value 12 PERFORMANCE 12 1 Sampling Rates See MFT B Series Brochure for sampling rate specs 12 2 Power Up On power up the MFT B Series goes through a self test procedure see section 12 4 which takes approximately 2 seconds Actual restart times can vary the MFT B Series Operation Manual provides details on the parameters that can affect the flow meter device restart power up time During this period the device will not respond to HART commands and the analog output is set at the NE 43 alarm lt 3 6 mA or gt 21 0 mA When the self test is satisfactorily completed an additional delay of 20 seconds is required before a response to any HART command is guaranteed 12 3 Reset Command 42 Device Reset causes the device to reset its microprocessor The resulting restart is identical to the normal power up sequence See Section 12 2 Revision A Release Date 6 30 2010 Page 37 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 12 4 Self Test The MFT B Series does not support Command 41 Self Test The MFT B Series performs periodic self tests as part of its normal operational task Any errors or faults determine
18. at uses thermal convection to measure mass flow The MFT B Series comes standard with one 4 to 20mA output channel Additional options that can be purchased on the Flow Transmitters are two solid state relay outputs two digital inputs and one 4 20mA input 4 PRODUCT INTERFACES 4 1 Process Interface 4 1 1 Sensor Input Channels The MFT B Series can be optionally configured with one 4 20mA input and or up to two digital inputs Details about these optional input channels and their functions can be found in the MFT B Series User Guides 4 2 Host interface 4 2 1 Analog Output Channel A two wire optically isolated 4 20 mA current loop is connected on two terminals marked AO1 and AO1 Refer to the Installation Manual for connection details HART Communication is supported on this loop Revision A Release Date 6 30 2010 Page 6 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS This is the only analog output on the MFT B Series HART flow transmitter This analog output can be configured to output the measured process Flow Rate Average Velocity or Temperature The process Flow and Velocity are linearized and scaled according to a configured range that can be entered through the HART interface This output can be configured to correspond to the Primary Variable Device malfunction can be indicated by down scale or up scale current NAMUR NE 43 compliant Th
19. code is sent Request Data Bytes Byte Format Description 0 Unsigned 8 Drift Check Command Code Response Data Bytes Byte Format Description 0 Unsigned 8 Drift Check Command Code Command Specific Response Codes 0 Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 31 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 14 Command 144 Read Diagnostic Data Reads the Diagnostic Data from the device The Diagnostic Data includes input voltages sensor outputs sensor control data Request Data Bytes Byte Format Description None Response Data Bytes Byte Format Description 0 3 Float VPs 4 7 Float VIph 8 11 Float VRtch 12 15 Float VRtcl 16 19 Float VLeakSense 20 23 Float VExtIn 24 27 Float VTemp 28 31 Float VCal 32 35 Float Irp 36 39 Float Prp 40 43 Float Rp 44 47 Float Rtc 48 51 Float Resistance of the Sensor Wire 52 55 Float Sensor Leakage Resistance 56 59 Float Electronics Temperature 60 63 Unsigned 32 Device Run Time counter 64 67 Float VLI Command Specific Response Codes 0 Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 32 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 15 Command 145 Reset Totalizer Sends a command to the device to reset the Flow Totalizer Accumulator The valu
20. d OperationStatus Revision A Release Date 6 30 2010 Page 9 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification 7 2 Extended Device Status The Extended Device Status byte contained in byte 6 of command 48 Response Data Byte contains the following bitwise status information HART FDS Bit Mask Definition Conditions to set bit 0x80 bit 7 Undefined NA 0x40 bit 6 Undefined NA 0x20 bit 5 Undefined NA 0x10 bit 4 Undefined NA 0x08 bit 3 Undefined NA 0x04 bit 2 Critical Power Failure Not Used by MFTB 0x02 bit 1 Device Variable Alert FaultIndex bits 7 28 31 0x01 bit 0 Maintenance Required Any FaultIndex bit excluding bits 7 28 31 Revision A Release Date 6 30 2010 Page 10 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 7 3 Additional Device Status Command 48 Command 48 returns 9 bytes of additional device status data for the field device This command should be sent whenever Bit 4 More Status Available or Bit 7 Device Malfunction is set in the Device Status byte to determine the exact nature of the alert warning alarm or malfunction The following bitwise status indications are provided in the Additional Device Status response Byte Bit Meaning Byte 0 lt 0 RP resistance above high limit Device Speci
21. d during the periodic self tests are recorded in the Device Specific Status bytes provided in the response to Command 48 Read Additional Device Status The self test procedure is also executed at power up following Command 42 Device Reset For more details about the Built in Diagnostic capabilities see the MFT B Series User Manual 12 5 Command Response Times Minimum 20ms Typical SOms Maximum 100ms Revision A Release Date 6 30 2010 Page 38 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 12 6 Busy and Delayed Response Delayed response is not used 12 7 Long Messages The largest data field used is in the response to Command 128 Read Correction Factor Data and Command 129 Write Correction Factor Data The number of bytes in the response data field for these commands is 70 bytes 12 8 Non Volatile Memory EEPROM is used to hold the device s configuration parameters New data is written to this memory immediately on execution of a write command 12 9 Modes Fixed current mode is implemented using Command 40 This mode is cleared by power loss or reset 12 10 Write Protection The device does not have a write protection function 12 11 Damping Damping is standard affecting only the PV and the loop current signal Revision A Release Date 6 30 2010 Page 39 of 42 Kurz Instruments Inc Document 360209 AQ D
22. e The Drift Check parameters include the ON OFF status of the Auto Drift Check the Time Interval of the Auto Drift Check and for each of the Drift Check Tests the of FS drive voltage and test duration The Auto Drift Check Timer configures the internal timer in the device to initiate the Drift Check Tests at a specified interval when it is set to ON The Drift Check Timer has no effect on triggering the Drift Check Tests using device specific command 143 ie the user can initiate a Drift Check Test using command 143 if the Drift Check Timer is OFF The Drift Check Time Interval defines the periodic interval in hours that the Drift Check Tests will be initiated by the internal timer The of FS drive voltage and test duration defines the amplitude of the output signal and duration that the output signal is applied for each Drift Check Test The amplitude is given as a of full scale of the independent voltage source which is 3 3V For example if 10 0 is entered for the of FS for the Zero Drift Check Test then 0 33V 10 of 3 3V will be applied to the 4 20mA output for the Drift Check at Zero Request Data Bytes Byte Format Description Response Data Bytes Command Specific Response Codes 0 Success No Command Specific Erros Revision A Release Date 6 30 2010 Page 27 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 11 Command 141 Write Zero
23. e direction is selectable by the user as LOW OUTPUT or HIGH OUTPUT This setting is not configurable through the HART interface but can be configured using the meter s local keypad Refer to the MFTB User Guide for details Current values are shown in the table below Direction Values mA Device malfunction Down less than 3 6 indicati ei Up greater than 21 0 4 2 2 Discrete Outputs The MFT B Series can be configured with up to two optically isolated solid state relays DO can be configured to energize when any alarm or fault event occurs If the Air Purge Sensor Cleaning System is installed DO2 is used to energize a solenoid valve for periodic or on demand cleaning of the sensor The Air Purge Sensor Cleaning can be setup and controlled through the HART interface 4 3 Local Interfaces Jumpers And Switches 4 3 1 Local Controls And Displays The MFT B Series has a local 2x16 LCD display and 20 key keypad This allows the user to view change parameters that are not accessible through the HART interface Refer to the MFTB User Guide for details regarding the onboard menu system 5 DEVICE VARIABLES The following Table lists the MFTB Device Variables available through the HART interface Device Variable Name Number Description Units HART Class Code 0 246 PV Primary Variable Usually Flow Rate SCFM SCFH PPM PPH SLPM SCMH KGM KGH SFPM SMPS 12
24. e of the Flow Totalizer is mapped to the QV dynamic variable Request Data Bytes Byte Format Description None Response Data Bytes Byte Format Description None Command Specific Response Codes 0O Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 33 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 16 Command 146 Read Standard Conditions Reads the Standard Temperature and Pressure parameters from the device Request Data Bytes Byte Format Description Response Data Bytes Byte Format Description 0 Enum Standard Temperature Unit Code Enum Standard Pressure Unit Code 2 5 Float Standard Temperature Value 6 9 Float Standard Pressure Value Command Specific Response Codes 0O Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 34 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 17 Command 147 Write Standard Conditions Writes the Standard Temperature and Pressure parameters to the device Request Data Bytes Byte Format Description 0 Enum Standard Temperature Unit Code 1 Enum Standard Pressure Unit Code 2 5 Float Standard Temperature Value 6 9 Float Standard Pressure Value Response Data Bytes 6 9 Float Standard Pressure Value Command Specific Response Codes ven
25. evision A Release Date 6 30 2010 Page 18 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 3 Command 130 Read Current Correction Factor Reads the Total Correction Factor from the device Request Data Bytes Byte Format Description None Response Data Bytes Byte Format Description 0 3 Float Total Correction Factor Command Specific Response Codes 0 Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 19 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 4 Command 131 Read Flow Area Read the Flow Area from the device Request Data Bytes Byte Format Description Response Data Bytes Byte Format Description 0 3 Float Flow Area 4 Enum Flow Area Unit Code Command Specific Response Codes 0 Success No Command Specific Errors Revision A Release Date 6 30 2010 Page 20 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 5 Command 132 Write Flow Area Writes the Flow Area to the device Request Data Bytes Byte Format Description 0 3 Float Flow Area Response Data Bytes Byte Format Description 0 3 Float Flow Area Command Specific Response Codes carat oee S ESA Undefined O Revision A Release Date 6 30 2010 Page 21 of 4
26. fic Status 0 i RP resistance below low limit MELB Fanltindex Byte 0 2 RTC resistance above high limit 3 RTC resistance below low limit 4 Wire Resistance above high limit 5 Sensor RPS lead open circuit 6 High sensor or wire leakage current S GND below 100K ohms 7 Flow rate above design limit Byte 1 0 1 Undefined Device Specific Status 1 ADC failed to convert data METS F ultindex Byte 1 Sensor control stop responding Sensor control crowbar engaged Abnormal sensor node voltages Unable to write new config file Byte 2 Device Specific Status 2 2 3 4 5 Sensor type does not match config 6 7 0 Sensor type does not match board 1 7 Undefined MFTB FaultIndex Byte 2 Byte 3 0 3 Undefined Device Specific Status 3 4 HART Warning Subsystem Fail 5 Sensor leak warning S GND below MFTB FaultIndex Byte 3 100K ohms 6 Power was applied momentary 7 Change made to configuration momentary Byte 4 0 Device in Diagnostic Mode Device Specific Status 4 MFTB SensorTestFlag is set 1 Fixed current output 2 Fault Event in MFTB ie any bit in FaultIndex is set except POWER_ON and CONFIG_CHANGE 3 Analog output is saturated Revision A Release Date 6 30 2010 Page 11 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 4 MFTB Alarm 1 5
27. me for the entire purge cycle e g a Hold Time of 2000 milliseconds with a Purge Time of 500 milliseconds means that the Purge Relay will be pulsed for 500 milliseconds followed by an additional 1500 milliseconds of idle time to allow for sensor recovery The Purge Interval is used to set the frequency in minutes of the purge cycle when the Purge Timer is set to ON Request Data Bytes Byte Format Description None Response Data Bytes Byte Format Description 0 Unsigned 8 Purge Timer 0 OFF 1 ON 1 Unsigned 8 Assigned Digital Output for the Air Purge Sensor Cleaning System Command Specific Response Codes 0 Success No CommandSpecifie Eros Revision A Release Date 6 30 2010 Page 23 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS 10 8 Command 138 Write Purge Parameters Writes the Purge Parameters to the device The Purge parameters include the Purge Switch Purge Assigned DO Purge Width Purge Hold Time Purge Interval See Section 10 7 Command 137 for parameter descriptions Request Data Bytes Byte Format Description 0 Unsigned 8 Purge Timer 0 OFF 1 ON 1 Unsigned 8 Assigned Digital Output for the Air Purge Sensor Cleaning System 2 3 Unsigned 16 Purge Width 4 5 Unsigned 16 Purge Hold Time 6 9 Unsigned 32 Purge Interval Response Data Bytes Byte Format Description 0 Unsigned 8 Purge Timer 0 OFF 1
28. ocument Title MFT B Series HART Field Device Specification HART FDS ANNEX A CAPABILITY CHECKLIST Manufacturer model and revision Kurz Instruments Inc MFT B Series 2 0 rev 1 Device type Flow Transmitter HART revision 7 0 Device Description available Yes Number and type of sensors 1 thermal anemometer flow and temperature Number and type of actuators none Number and type of host side signals 1 4 20mA analog Number of Device Variables 6 Number of Dynamic Variables 6 PV SV TV QV Percent Range Loop Current Mappable Dynamic Variables NO The dynamic variables PV and SV are indirectly mappable when PV units are changed TV and QV are fixed to represent temperature and totalized flow Number of common practice commands 10 Number of device specific commands 17 Bits of additional device status Alternative operating modes No Burst mode No Write protection No Revision A Release Date 6 30 2010 Page 40 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification ANNEX B DEFAULT CONFIGURATION HART FDS Parameter Default value Lower Range Value 0 Upper Range Value 100000 PV Units SCFM Damping time constant 0 5 second Fault indication jumper None Write protect jumper None Number of response preambles 5 Revision A Release Date 6
29. on HART FDS 7 STATUS INFORMATION 7 1 Device Status The Field Device Status byte that is contained in the second data byte of the device s response to any HART command provides the following bit definitions for the current operating status of the MFT B Series Flow Transmitter Bit Mask Definition Conditions to set bit 0x80 bit 7 Device Malfunction Any FaultIndex bit except bits 7 28 31 0x40 bit 6 Configuration Changed Any parameter change 0x20 bit 5 Cold Start Whenever a power cycle reboot occurs on the MFTB 0x10 bit 4 More Status Available Set when any bits in the following status bytes are set Device Specific Status O Device Specific Status 1 Device Specific Status 2 Device Specific Status 3 Device Specific Status 4 Device Specific Status 5 Extended Device Status Standardized Status O OperationStatus bit 1 Device Specific Status 5 bits O 1 2 3 4 0x08 bit 3 Loop Current Fixed 0x04 bit 2 Loop Current Saturated OperationStatus bit 3 0x02 bit 1 Non Primary Variable Out of Limits FaultIndex bits 0 16 0x01 bit 0 Primary Variable Out of Limits FaultIndex bit 7 When the Bit 4 More Status Available or Bit 7 Device Malfunction bits are set the HOST should send Command 48 Read Additional Device Status to determine the exact nature of the status indication See Section 7 3 See Section 11 for bitwise definition of MFTB FaultIndex an
30. tle MFT B Series HART Field Device Specification HART FDS 10 1 Command 128 Read Correction Factor Data Reads the Field Calibration Correction Factor and the 8 set s of Variable Correction Factors VCF from the device The VCF are data pairs that define a Reference Flow or Velocity and the Observed Actual Flow or Velocity The number of valid VCF pairs NCorrPts is included in the response data This value defines the number of VCF sets that are currently used in the process data calculations Request Data Bytes Byte Format Description None Response Data Bytes Byte Format Description 0 Enum Correction Factor Unit Code see Section 11 1 1 4 Float Field Calibration Correction Factor 5 Unsigned 8 Number of Variable Correction Factor Data Sets configured for use 38 41 Float Data Point 5 Reference Flow or Velocity 42 45 Float Data Point 5 Observed Flow or Velocity 46 49 Float Data Point 6 Reference Flow or Velocity 50 53 Float Data Point 6 Observed Flow or Velocity 54 57 Float Data Point 7 Reference Flow or Velocity 58 61 Float Data Point 7 Observed Flow or Velocity 62 65 Float Data Point 8 Reference Flow or Velocity 66 69 Float Data Point 8 Observed Flow or Velocity Revision A Release Date 6 30 2010 Page 15 of 42 Kurz Instruments Inc Document 360209 AQ Document Title MFT B Series HART Field Device Specification HART FDS Command Specific Response Codes 0

Firmware 2.x - HART Field Device Specification

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