Communicating with Honeywell SMV3000 Multivariable Transmitters
Contents
1. NOTE The n in the Modbus address refers to the number of the meter run Transducer Alarms Logged by the Flow Computer Table 2 alarm points are automatically updated with data contained in the detailed status bytes within the flow computers copy of the SMVs data base These alarms are time and date tagged and logged by the flow computer whenever the respective bit changes state Other than the logging function non critical alarms cause no other action to occur Critical alarms are alarms which are considered to adversely impact the credibility of the measurement reading these alarms cause the flow computer to examine the Override Code strategy and apply an override if so configured Table 2 Alarm Points RENS ALARM TITLE mm 2n42 Meter n DP Invalid Corrects or Corrects Reset NC 2n43 Meter n DP is the Input or Output Mode CR 2n44 Meter n DP Signal is Suspect CR 2145 Prid n Pressure Invalid Corrects or Corrects NC 2n46 Meter n Pressure is in the Input or Output Mode CR 2n47 Meter n Pressure Signal is Suspect CR 2148 Meter n Temperature Invalid Corrects or Corrects Reset 2n49 Meter n Temperature is in the Input or Output Mode CR 2n50 Meter n Temperature Signal is Suspect CR 2n51 Meter n Body Fault Over Temperature NC 2n52 Meter n Critical Failure of SMV Electronics CR 2n53 Meter n SMV Not Communicating CR NC Non Critical Alar2. All PVs are suspect 2n50 CR 3 1 Suspect SP Input Static pressure input suspect 2n47 CR 3 2 Status 3 2 Consult with Honeywell for meaning 33 Status 3 3 Consult with Honeywell for meaning 3 4 DP Term Out of Range 3 5 V T Term Out of Rng Viscosity temperature term aZ out of range 52 0003 0003 Rev B Y Omni Page 7 of 12 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters HONEYWELL OMNI Pelle nam TEXT IN BOLD DISPLAYED BS BIT ACTIVATED 3 6 D T Term Out of Rng Density temperature term out m of range 37 Ind Var Out of Range Independent variable out of 4 0 Status 4 0 Consult with Honeywell for meaning 44 SP Excess zero correction for 2n45 NC 4 2 SP Excess span correction for on45 NC 4 3 SP is Absolute Static pressure sensor is eae absolute 4 4 SP is Gauge Static pressure sensor is gauge 4 5 Status 4 5 Consult with Honeywell for meaning 4 6 SP Corrects Reset Static pressure corrections 2n45 reset 4 7 Status 4 7 Consult with Honeywell for meaning 5 0 Status 5 0 Consult with Honeywell for meaning 5 1 Status 5 1 Consult with Honeywell for meaning 5 2 Status 5 2 Consult with Honeywell for meaning 5 3 Status 5 3 Consult with Honeywell for meaning 5 4 DP in Input Mode 2n43 CR 5 5 SP
3. H The HV combo module is always the last module in the list and the I O assignments reflect this fact Example 1 OMNI 6000 2A H1 HV Flow computer contains 2 A combos 1 H combo and an HV combo The 1st A combo is allocated Input points 1 2 3 amp 4 Output points 1 amp 2 The 2nd A combo is allocated Input points 5 6 7 amp 8 Output points 3 amp 4 The H combo is allocated Input points 9 10 11 amp 12 Output points 5 amp 6 The HV combo is allocated Input points 13 14 15 amp 16 Diff Pressure 17 18 19 amp 20 Temperature 21 22 23 amp 24 Pressure Output points 7 amp 8 While the example shown employs four 4 combo modules in total it uses all twenty four 24 process input assignments this means that tow 2 physical I O module slots will be unusable on the backplane 52 0003 0003 Rev B Y Omni Page 10 of 12 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters To configure an HV combo module it is only necessary to configure the Diff Pressure I O points in the Meter Run Config menu the I O points for the temperature and pressure variables are automatically assigned by the flow computer and cannot be changed by the user Using Example 1 Table 3 identifies the I O point assignments that will occur Table 3 I O Point Assignments DIFFERENTIAL PRESSURE TEMPERATURE PRESSURE 13 17 21 14 18 22 15 19 23 16 20 24 Numbers in bold a
4. in Input Mode 2n46 CR 5 6 Temp in Input Mode 2n49 CR 5 7 PV4 in Input Mode 255 6 0 2 Wire RTD Used 6 1 3 Wire RTD Used m 6 2 4 Wire RTD Used 6 3 2 Wire TC Used 6 4 2n43 CR 6 5 SP in Output Mode 2n46 CR 6 6 Temp in Output Mode 2n49 CR 6 7 PV4 in Output Mode 2 8 7 0 Temp A D Fault Temperature A D failure 2n50 CR 7 1 ave Char Fault Temperature characterization 2n50 CR 72 ae Suspect Temperature input signal is 2n50 CR 7 3 Status 7 3 Consult with Honeywell for meaning 7 4 non volatile 2n50 CR 7 5 Status 7 5 Consult with Honeywell for meaning 52 0003 0003 Rev B Y Omni Page 8 of 12 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters HONEYWELL OMNI Pelle nam TEXT IN BOLD DISPLAYED BONS BIT ACTIVATED 7 6 Status 7 6 Consult with Honeywell for meaning 7 7 Status 7 7 Consult with Honeywell for meaning 8 0 Delta Temperature FUTURE Consult with ae Honeywell for meaning 8 1 Excess Zero Cor Temp 2n48 NC 8 2 Excess Span Cor Temp 2n48 NC 8 3 Temp Input Open Open circuit temperature sensor 2n50 CR 8 4 Over Range Process temperature is over 2n50 CR 8 5 Redun Backup Temp FUTURE Consult with a Honeywell for meaning 8 6 Temp Correct Active 2n48 NC 8 7 Temp Sensor Mismatch 2n50 CR NC Non Critical Alarm CR Critical Alarm Override Action Considered
5. Last Updated 13 April 2009 TB 980502B Technical Bulletin Communicating with Honeywell SMV3000 Multivariable Transmitters OMNI FLOW COMPUTERS INC 2 SW e 12620 West Airport Boulevard Suite 100 US Omni Sugar Land Texas 77478 United States of America Phone 281 240 6161 Fax 281 240 6162 www omniflow com 52 0003 0003 Rev B 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters NOTE User Manual Reference This Technical Bulletin complements the information contained in the User Manual and is applicable to all firmware revisions 74 Communication with Honeywell SMN3000 Smart Transmitters This feature allows you to communicate with Honeywell SMV3000 Smart Multivariable Transmitters which provide Differential Pressure Temperature and Static Pressure via OMNI s HV type Process I O Combo Modules and using Honeywell s DE Protocol Table of Contents COPS M ENS MEM 3 logo 3 DE Protocol Overview E 3 Transmitter MATA ASC d CLE 3 The Honeywell Handheld Communicator esesseseeeeeeeeenn nmn 3 Combo Module LED Status Indicators uncis cre tee t Ree EO LA Lp pet pM Iu 4 Switching Between Analog and Digital nennen 4 Viewing the Status of the Honeywell Transmitter from the Keypad 4 Viewing the Sta
6. ated When this happens these alarm events are time and date tagged and logged in the alarm log as any other flow computer alarm Table 1 Detailed Status Information HONEYWELL OMNI DETAILED ALARM STATUS BYTE TEXT IN BOLD DISPLAYED POINT S BIT ACTIVATED Meter Body Fault Communication between sensor 1 0 m 2n47 CR board and SMV main board electronics is suspect 2n50 CR TE 2n44 CR 1 1 Characterization PROM Fault or Checksum Error 2n47 CR 1 2 Suspect Input Possibly Meter Body or Electronics 2n44 CR Failure 2n47 CR 1 3 DAC Compensation Fault Detected 2n52 CR 1 4 NVM Fault Non Volatile Memory Error Detected 2n52 CR 1 5 RAM Fault RAM Memory Error Detected 2n52 CR 1 6 ROM Fault ROM Memory Error Detected 2n52 CR 2n44 CR 1 7 PAC Fault Detected 2n47 CR 2 0 MB OverTemp Meter Body Sensor Over 2n51 NC Temperature 24 i Zero Correction Value is Outside of Acceptable 2142 NC imits 2 2 DP Span Correction Value is Outside of Acceptable 2n42 NC Limits 2 3 Status 2 3 Consult with Honeywell for meaning 2 4 MB Overload or Always with next message 2n47 CR 2 5 Meter Body Fault Pressure input is twice the URL 2n47 CR DP Cal Corr Default Reset Corrects command 29 issued Calibrate and Power Cycle performed 2 7 DAC Tempco Data Bad Analog mode only 3 0 Invalid Database Some error detected in the SMVs configuration
7. cator The flow computer is responsible for configuring the following entries within the transmitter e Lower Range Value or Zero e Transmitter Span or Max Range e Damping Factor e Tag Name e DP SP and Temperature conformance bits Any changes made to 1 2 3 and 5 using the handheld communicator will be overwritten by the flow computer In the digital mode it is not absolutely necessary to calibrate the transmitters outputs using the handheld communicator The user can however trim the transmitter s output calibration using the handheld communicator if he so desires without interference from the flow computer refer to Honeywell documentation for details of trimming corrects Whether the transmitter is trimmed with the handheld or not the digital signals should be final calibrated end to end using the normal analog input method described in Chapter 8 of Volume 1 of the User Manual 52 0003 0003 Rev B Y Omni Page 3 of 12 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters Combo Module LED Status Indicators Each I O channel of the HV Combo module has a set of two 2 LED indicators one 1 green and one 1 red The green LED shows all communication activity taking place on the channel flow computer transmitter and handheld communicator if connected The Red LED lights only when the flow computer is transmitting data to the transmitter Normal digital operation is indicated by a regular p
8. every ten 10 seconds 3 Bad PV Communications between the flow computer and smart Honeywell transmitter are OK but the transmitter has determined that a critical error has occurred within the transmitter meaning the value of the process variable cannot be trusted The flow computer will set the transducer failure alarm and follow the fail code strategy selected by the user for this transducer 4 DB Error Communications between the flow computer and smart Honeywell transmitter are OK but the flow computer has determined that the database within the flow computer does not agree with the database within the transmitter If you observe the status LEDs you will note that the flow computer attempts to correct the transmitter s database by writing the correct data to the transmitter once every 30 45 sec 5 4 Byte The transmitter is operating in the 4 Byte Burst Mode Because the flow computer will not tolerate this mode of operation this status display should only be displayed momentarily as the flow computer will automatically Switch the transmitter into the 6 Byte Burst Mode Gross Status Flag value 1 OK No errors are reported by the SMV transmitter 2 Critical Critical error reported by the SMV transmitter 3 Non Critical An error of a non critical nature has been reported by the SMV transmitter 4 Reserved Consult Honeywell if this status value is returned Differential pressure variable value in percentage of the tran
9. iew Digital data is transmitted serially between the flow computer and Honeywell Smart Transmitters by modulating the current in the two wire loop connecting the devices Power for the transmitter is also taken from this current loop Data is transmitted at 218 47 bits per second with a digital 0 20 mA and a digital 1 4 mA In normal operation the Honeywell transmitter operates in the 6 byte Burst Mode In this mode the transmitter transmits the following data to the flow computer every 366 msec Byte 1 Status Flags Byte 2 4 Process Variables Span Value 3 byte floating point Byte 5 Database ID indicates where in the transmitter database Byte 6 belongs Byte 6 Database Data Value Transmitter Database By using the data contained in Bytes 5 and 6 the flow computer builds and maintains an exact copy of the multivariable transmitter s configuration database The transmitter database which is sent to the OMNI Flow Computer is about 132 bytes Based on the burst rate of the transmitter it can take about forty five 45 to fifty five 55 seconds to completely build a copy of the transmitter database within the flow computer The transmitter database is continuously compared against the flow computer configuration settings for that transmitter The flow computer automatically corrects any differences between the databases by writing the correct configuration data to the transmitter The Honeywell Handheld Communi
10. inear output Conformity Bit 1 square root output The flow computer requires linear output and will automatically set this bit to zero 0 should it be set to a one 1 Lower Range Value of the Static Pressure variable in engineering units Engineering units are inches of water at 39 F The Span of the Static Pressure variable in engineering units the span is the difference between the lower and upper ranges of the transmitter Engineering units are inches of water at 39 F The flow computer will display DB Error if the user tries to enter a span of 0 or a span which would exceed the static pressure sensor range described later Damping Time of the Static Pressure transmitter output in seconds Meaningful only with differential pressure transmitters Lower Range Value of the temperature variable in engineering units Engineering units are degrees Celsius The Span of the Temperature variable in engineering units the span is the difference between the lower and upper ranges of the transmitter Engineering units are degrees Celsius The flow computer will display DB Error if the user tries to enter a span of 0 or a span which would exceed the temperature sensor range described later Damping Time of the Temperature transmitter output in seconds Meaningful only with differential pressure transmitters Current Software installed within the smart multivariable device Serial Number of the smart multivariab
11. le device Maximum range of the DP sensor in inches of water at 39 F The transmitter will not accept configuration entries which exceed this value Maximum range of the Static Pressure sensor in inches of water at 39 F The transmitter will not accept configuration entries which exceed this value Maximum range of the Temperature sensor in degrees Celsius The transmitter will not accept configuration entries which exceed this value ASCII string used to identify the SMV DP transmitter Frequency used to filter sensor signals to minimize AC mains interference Selections are 50 or 60 Hertz Temperature sensor types are e RTD PT100 e Jtype Thermocouple e Ktype Thermocouple e T type Thermocouple e Etype Thermocouple NOTE Thermocouples can be internally or externally compensated 52 0003 0003 Rev B Page 6 of 12 Y Omni 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters Obtaining More Detailed Status Information from the Keypad Additional data based upon the Primary Secondary and Tertiary Detailed Status bytes which are retrieved from the SMV data base is available by pressing Input Status Alarm and Enter The display will approximate the messages shown in Table 1 depending upon certain bits being ON in the appropriate detailed status byte Some of these status bits also cause alarm status points within the flow computer database to be activ
12. m CR Critical Alarm Override Action Considered NOTE The n in the Modbus address refers to the number of the meter run SW 52 0003 0003 Rev us Omni Page 9 of 12 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters HV Combo Module Address Jumpers The HV Combo Module uses the same physical PCB module as a regular H type combo module except it uses a different address jumper setting Figure 1 Module Address Jumpers In Position Green LED Indicates Any Activity Red LED Indicates OMNI is Transmitting SMV Channel 1 Cp SMV Channel 2 Transmitter Loop Status LEDs SMV Channel 3 L SMV Channel 4 Figure 1 Setting the Address Jumpers of the HV Combo Module How the I O Points are Assigned When the flow computer detects that an HV combo module is installed it automatically allocates twelve 12 of its twenty four 24 process inputs to the HV module The presence or absence of combo modules is checked after a RESET ALL RAM or after a CHECK I O MODULES command is executed Although the HV combo has only four 4 physical Honeywell DE ports each SMV 3000 provides three 3 variables for a total I O requirement of 4 x 3 12 As the total process input count of the flow computer is limited to twenty four 24 it is obvious that if an HV combo module is fitted there can only be three 3 other combo modules of type A B E D E or
13. om the front panel The following data displays HV 1 Transmitter DB Status OK Gstatus NON CRITICAL 25 00 76 50 32 13 LRV 0 0 Span 400 0 Damp Secs 16 Conformity bit LRV 406 8 Span 27680 2 Damp Secs 16 Conformity bit LRV 0 Span 100 0 Damp Secs 3 Conformity bit Revision 2 1 Serial 48 DP Range 400 0 SP Range 20760 5 TT Range 850 0 ID TAG SMV 3000 Filter Hertz 60 SensorType RTD PT100 52 0003 0003 Rev B w 2 Omni Page 4 of 12 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters Viewing the Status of the Honeywell Transmitter from the Keypad HV 1 Transmitter DB Status Gstatus DP SP TT DP LRV Indicates the Honeywell Multivariable Combo Module HV and the channel number on that module As there can be only one 1 HV module installed this number can only be one 1 through four 4 There are five 5 status states 1 OK Communications between the flow computer and smart Honeywell transmitter are OK The database within the transmitter matches the flow computer 2 Idle This flow computer I O point has been assigned to a Honeywell transmitter but is not receiving data from the transmitter Possible cause is a wiring problem such as reversal of wiring If you observe the status LEDs you will note that the flow computer attempts to establish communications by sending a wake up command approximately
14. re entered by the user Numbers in italics are assigned automatically by the flow computer and cannot be changed OMNICOM Revision OMNICOM revision 74 or later is required to support the SMV 3000 multivariable transmitter 52 0003 0003 Rev B Y Omni Page 11 of 12 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters DOCUMENT REVISION HISTORY DOCUMENT INITIAL RELEASE DATE uses atrae ax EFE 22 May2003 REVISION DATE PURPOSE CHANGE REQUEST A 22 May 2003 Maintained on the Web Initial release B 12 April 2009 DCR 090110 52 0003 0003 Rev B Y Omni Page 12 of 12
15. smitter span A 25 00 could mean that the transmitter is not communicating refer to Status definition previous Static pressure variable value in percentage of the transmitter span A 25 00 could mean that the transmitter is not communicating refer to Status definition previous Temperature variable value in percentage of the transmitter span A 25 00 could mean that the transmitter is not communicating refer to Status definition previous Lower Range Value of the DP variable in engineering units Engineering units are inches of water at 39 F 52 0003 0003 Rev B Y Omni Page 5 of 12 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters DP Span The Span of the Differential pressure variable in engineering units the span DP Damp Secs DP Conformity Bit SP LRV SP Span SP Damp Secs SP Conformity Bit TT LRV TT Span TT Damp Secs TT Conformity Bit Software Revision Serial DP Range SP Range TT Range ID TAG Filter Hertz Sensor Type is the difference between the lower and upper ranges of the transmitter Engineering units are inches of water at 39 F The flow computer will display DB Error if the user tries to enter a span of 0 or a span which would exceed the DP sensor range described later Damping Time of the DP transmitter output in seconds Meaningful only with differential pressure transmitters Conformity Bit 0 l
16. tus of the Honeywell Transmitter from the 5 Obtaining More Detailed Status Information from the 7 Transducer Alarms Logged by the Flow Computer eene 9 HV Combo Module Address Jumpers tento ended p haee taber do Ri deed 10 How the I O Points are ASSIQUBE 10 OMNICOM REVISION me 11 Figures Figure 1 Setting the Address Jumpers of the HV Combo 10 52 0003 0003 Rev Omni Page 2 of 12 980502 Communicating with Honeywell SMV 3000 Multivariable Transmitters Scope All OMNI 6000 OMNI 3000 Flow Computers containing firmware 21 74 23 74 27 744 are able to communicate with Honeywell SMV3000 Smart Multivariable Transmitters This feature uses Honeywell s DE Protocol and requires that an HV Combo I O Module be installed in your flow computer Abstract Using an HV Combo I O Module the OMNI Flow Computer can communicate with up to four 4 Honeywell SMV3000 Smart Multivariable transmitters These transmitters provide Differential Pressure Temperature and Pressure signals using Honeywell s DE Protocol Only one 1 HV Type Combo Module can be installed in the flow computer Loop power is provided by the HV combo module DE Protocol Overv
17. ulsation of the green LED about three 3 pulses per second The red LED will be seen to blink whenever a configuration change is made in the flow computer which affects that particular transmitter Switching Between Analog and Digital Mode Connecting an analog mode Honeywell multivariable transmitter to the flow computer will cause it to automatically switch the transmitter to the digital DE mode sending out a series of Wake up commands to the Honeywell transmitter A switch over to the digital mode by the transmitter will cause the green LED on the combo module to pulse steadily indicating that communications have been established To disable the wake up command and initialize communications between the Honeywell transmitter and the flow computer delete all I O point assignments within the flow computer to that I O point Using the Honeywell handheld communicator press Shift A D and wait until the handheld displays Change to Analog Answer by pressing Enter Yes SFC Working will be displayed The green LED on the HV Combo module on that channel will stop pulsing Reentering the I O point will cause the OMNI to send the wake up command to the Honeywell and after three 3 commands sends the green LED on the Honeywell module will pulse at a steady 3Hz rate Viewing the Status of the Honeywell Transmitter from the Keypad To verify the data being received from the smart transmitter press Input Status and Enter fr
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