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FOUNDATION Fieldbus STT850 Temperature Transmitter User`s

1. Block Parameter Value Fault Action Type Out of Service Non Write proper mode to MODE_BLK 15 critical parameter Unable to write Configur See Resolving the block values to valid ation configuration errors device Error parameters A ATTENTION Depending on the fieldbus interface application device operating status and parameter values may appear as text messages The text in the table is typical of values or messages seen when using the NI FBUS configurator Critical Fault In the case of a critical fault due to Memory Failure NV Static data loss or the readback check failure writes to the RESTART parameter twice for the transmitter to fully recover from the fault condition Therefore 1 Write 4 or restart processor to RESTART parameter of resource block 2 Wait until communication is established 3 Ifthe fault occurs again repeat the write to the RESTART parameter 4 Ifthe fault occurs again replace the transmitter communication module Note that if a ROM error Memory Failure occurs in the resource block it may take up to 10 seconds for the fault to reappear Page 126 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Table 34 Summary of Function blocks Non critical Faults Table 34 summarizes the conditions that could cause a non critical fault in the transmitter along with recommended actions to correct the fault Problem Fault
2. Figure 24 Connecting the transmitter to the handheld Page 100 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 4 3 Performing block instantiation About block instantiation A block instance is a copy of an available block in the device say for example AI block There are totally 10 permanent blocks and only four blocks support instantiation in a device The four blocks that support instantiation are Analog Input block Discrete Input block Arithmetic block and PID block Four instances of the Analog Input block two instances of the Discrete Input block and Arithmetic block and one instance of the PID block can be instantiated A block can be instantiated or deleted Before block instantiation the device checks whether the particular block is supported and if there is sufficient memory to store the parameters After Instantiation the instantiated block must be loaded into the device and then the strategies can be created Block instantiation using Experion PKS The following are the steps for performing block instantiation using Experion PKS Step Action 1 From the DD at the Library Containment window select an instantiation block from the supported blocks that is Analog Input block or Input Selector block or Signal Characterizer block 2 Drag and drop the required instantiation block into the device on the Project Assignment window 3 After adding the instantiation block into the device
3. Possible cause Things to check Recommended action Incorrect Standard Dictionary Device Description DD or Symbols on host computer Verify that the Standard Dictionary the DD or symbols files are correct for the device Install the compatible version of Standard Dictionary and DD for the device on the host computer Incorrect pathnames to descriptions on host computer Check that the pathnames to locations of the Standard Dictionary and DD files on the host computer are correct Make sure that the pathnames of the Standard Dictionary and DD are in the correct location for the fieldbus software application Incorrect version of device firmware Read the following Resource block parameters e DEV_REV contains the revision level of the resource block e DD_REV contains the revision level of the resource block Perform a code download of the correct device firmware See section 5 2 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 107 6 3 Troubleshooting blocks Non functioning blocks Device block objects may not be running executing their function block schedules or the blocks may be in Out of Service OOS mode due to block configuration error For example if the AI function block is in OOS mode the block does not provide updated output values although the AI block may be running While troubleshooting a non functioning
4. Page 122 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 6 4 Device Diagnostics STT850 FF temperature transmitter memory The transmitter contains a number of areas of memory An EEPROM provides a non volatile memory area for static and non volatile parameter values The transmitter also contains areas of RAM and ROM Performing diagnostics in the background Block objects Resource Transducer and Function blocks the communications stack and other device objects each of them have an allotted area of memory for their corresponding database Diagnostic routines are performed in the background during device operations that checks the integrity of these individual databases When a failure is detected a status bit is set in the BLOCK_ERR parameter in the appropriate block object Diagnostic checks are performed continuously on the device functional databases of the transmitter application shown in Table 32 Table 32 Diagnostics Device Functional Area Location Block object database DB RAM and EEPROM Communication stack database DB EEPROM Boot ROM ROM Program ROM ROM Trend and link object databases DB ROM BLOCK_ERR parameter BLOCK_ERR parameter shows diagnostic faults of hardware and software components within the transmitter Each block object in the transmitter device application contains a BLOCK_ERR parameter BLOCK_ERR is actually a bit string which provides a me
5. SENSOR_CONNECTION_2 The wire count used in for sensor 2 Possible values are 2 Wire 3 Wire and 4 Wire This selection can be changed only for RTDs and is always 2 Wire in case of TC NUM_OF_INPUTS This parameter defines the number of sensors that can be connected to the transmitter The value can be 1 or 2 depending on the transmitter variant in use SECONDARY_VALUE_TYPE This is a read only parameter indicating secondary value type In the temperature transmitter the Cold Junction temperature is shown as the secondary value SECONDARY_VALUE_RANGE The range of the secondary value CJC_TYPE_PARAM The Cold junction compensation type to be used Internal Fixed or External External can be selected to use an external PT100 RTD as a CJ sensor connected to input 2 for compensating the TC connected to input 1 FIXED_CJC_VALUE The Fixed value to be used for Cold junction compensation This value is used only when CUC_TYPE_PARAM is chosen to be fixed BIAS1 The temperature bias applied to the measurement at input LEAD_WIRE_RESISTANCE_1 The lead wire resistance for input 1 Used only for RTDs SENS1_INSTALL_DATE The installation date of sensor 1 It is updated manually by the user Page 42 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameter Description BIAS2 The temperature bias applied to the measurement at input
6. MAINT_MAPPED parameter contains a list of conditions indicating either the device or some part of the device needs maintenance soon If the condition is ignored the device eventually fails The following are the seven parameters mapped by default with MAINT_MAPPED o Excess Calibration 1 Correct o Excess Calibration 2 Correct o Input 1 Out of Range o Input 2 Out of Range o Sensor Board Over Temperature o Cold Junction Temperature Out of Range o Communication Board Over Temperature MAINT_MASK parameter masks any of the failed conditions listed in MAINT_MAPPED A bit on means that the condition is masked out from alarming and is not reported MAINT_PRI designates the alarming priority of the MAINT_ALM The default is 0 MAINT_ACTIVE parameter displays the alarms that are active MAINT_ALM parameter indicates that the device needs maintenance If the condition is ignored the device fails CHECK_ALARMS It indicates that the output signal is temporarily invalid due to on going work on the device Revision 1 0 CHECK_MAPPED parameter contains a list of informative conditions that do not have a direct impact on the device s primary functions CHECK_MASK parameter masks any of the failed conditions listed in CHECK_MAPPED A bit on means the condition is masked out from alarming and is not reported CHECK_PRI parameter designates the alarming priority of the CHECK_ALM The default is 0 CHECK_ACTIVE parameter displays the
7. Average Temperature The default Average temperature ranges from the greater value of LRL1 and LRL2 to the lower value of URL1 and URL2 Redundant Temperature In Redundant Temperature mode both sensors are connected to the same process By default the value measured by Sensor 1 PV 1 is represented as the redundant value If PV1 goes bad the redundant value becomes the value measured by Sensor 2 PV2 Once Redundant value switches to PV2 it switches back to PV1 only when Redundant Switch to Sensor1 when Sensor 2 Bad option is enabled and PV2 goes bad The default Redundant temperature ranges from the greater value of LRL1 and LRL2 to the lower value of URL1 and URL2 Split Range Temperature In split range temperature mode a temperature range is split into two ranges lower value of the temperature range to Mid Range Value MRV and MRV to the higher value of the temperature range Split range temperature value is the value PV1 measured by sensor 1 as long as PV1 is below MRV Once PV1 exceeds MRV the split range temperature value becomes the value measured by Sensor2 PV2 The default range of Split Range temperature ranges from LRL1 to URL2 The default range of MRV ranges from 0 to UR The equation for MRV is as follows LRL1 URL2 LRL1 URL2 MRV __ __ when lt URL1 2 2 LRL1 URL2 MRV URL1 when gt URL1 Page 30 FOUNDATION Fieldbus STT850 Temperature Transmitte
8. Description GRANT_DENY Options for controlling access of host computer and local control panels to operating tuning and alarm parameters of the block HARD_TYPES The types of hardware available as channel numbers The supported hardware types are scalar input and discrete input RESTART Allows a manual restart to be initiated FEATURES Used to show supported resource block options The supported features are REPORT SOFT_WRITE_LOCK HARD_WRITE_LOCK and MULTI_BIT_ALARM FEATURE_SEL Used to select resource block FEATURE_SEL options CYCLE_TYPE Identifies the block execution methods available for this resource The supported cycle types are Scheduled and Block Execution CYCLE_SEL Used to select the block execution method for this resource MIN_CYCLE_T Time duration of the shortest cycle interval of which the resource is capable MEMORY_ SIZE Available configuration memory in the empty resource It must be checked before starting a download NV_CYCLE_T Minimum time interval specified by the manufacturer for writing copies of NV parameters to non volatile memory Zero implies it is never automatically copied At the end of NV_CYCLE_T only those parameters that have changed need to be updated in NVRAM FREE_SPACE Percent of memory available for further configuration Zero in preconfigured resource FREE_TIME Percent of the block processing time that is free to process additional blocks
9. MRV Hysteresis lt PV1 lt MRV Hysteresis During transition of PV from PV2 to PV1 the value of the Split Range temperature remains PV2 for all values of PV2 such that MRV Hysteresis lt PV2 lt MRV Hysteresis Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 31 Page 32 Transition from PV1 to PV2 MRV Hysteresis MRV MRV Hysteresis temperature Pv2 Transition from PV2 to PV1 MRV Hysteresis MRV MRV Hysteresis temperature Pv2 Figure 5 Transition of Split Range Temperature with Split Range Hysteresis on Sensor 1 to 2 transition option enabled The parameter ENABLE_OPT has bit options to configure the inputs to the temperature block The bit options and their functions are as follows e Enable Latch When a PV goes bad the Bad status of that PV stays latched Once the PV becomes good the status changes to good only if the latched status is manually cleared using the Clear latch method e Enable Excess Delta Detect Sets a Field Diagnostics Alert when TEMP _DELTA_VALUE the absolute difference between PV1 and PV2 crosses the configurable EXCESS_DELTA_LIMIT e Enable Break Detect Identifies any break in Sensor 1 or 2 connections and causes the corresponding PV status to become Bad sensor failure when a break is detected e Enable Match PV Matches PV2 to PV1 where PV1 is the reference value e Enable Differential Temperature Enabl
10. ccceecceseeeeeseeeeeeeeeseeeseseeeenseeeeeseeesnaeseseenenseees 99 LAS Capapilityr sotis teeter e aa a a see a a ie dase eae 99 Special Non volatile parameters and NVM Weav oU c cccceseseceeesneeeeesneeeessseeessnaeees 99 Mode Restricted Writes to ParamMeters cccccccccccccccceceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneeess 99 4 2 Configuration of the transmitter using Handheld HH 00 100 4 3 Performing block instantiation ccceseeeeseeeeeeeseeeeeeeseeeeeseseeeeneeseeeenens 101 About block instantiation 2 0 0 0 ee eeccccecececeessecceeeeeeneeeseceeeceseuenseceeeeeeeaagsseceeetensaaneeesenenees 101 Block instantiation using Experion PKS eccceeeceeeeeeeeeeeeeneeeeaeeeeeeeeaeeseaeeeeaeeseeeeeaeeeaes 101 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page xi 5 6 STT850 FF TEMPERATURE TRANSMITTER MAINTENANCE102 5 1 Replacing the Local Display and Electronic Assembly c0 se0 102 5 2 Downloading the firmWwatl e scccccseseeccsseeeeeesseeeeeenseeeeeenseeneeeeseenenenseeeenens 102 About firmware download feature eesceeeeseeeeeenneeeeeeneeeeeeeeeeesaeeesesaeeeeeseeeenenaeeesenaees 102 L eae EA EE A AE OA TAT 102 Recommendations rrearen n ra e N a R N ad adai 103 Downloading the File Hins ngne ana ea a Manat a Ke de nase a Eat 103 STT850 FF TEMPERATURE TRANSMITTER TROUBLESHOOTING 105 6 1 Troubleshooting overv
11. e AUTO Automatic e OOS Out of Service Alarm Types The block supports standard block alarms see section 3 2 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 59 3 8 Analog Input block The Analog Input AD block takes the transducer s input data selected by channel number and makes it available to other function blocks at its output The variables to be used by the block are defined through the available channels Primary Value 1 Primary Value 2 Cold Junction Temperature Electronics Housing Temperature Differential Temperature Average Temperature Redundant Temperature and Split Range Temperature Transducer Al OUT Figure 7 Analog Input Block Execution Transmitter Output Signal and Status Viewing certain parameters their values and status in the transmitter and understanding their relationship to each other are helpful in understanding transmitter output signal and status The following paragraphs and tables describe transducer and AI block parameters which directly determine the way the transmitter output is presented Temperature Sensor Signal In Transducer block the temperature signal is represented as PRIMARY_VALUE_1 or PRIMARY_VALUE_2 or as one of the calculated temperature values This temperature signal uses the elements in PRIMARY_VALUE_RANGE_1 or PRIMARY_VALUE_ RANGE 2 or one of the calculated temperature value range to determine the engineering
12. manual or the appropriate Honeywell Solution Support web site Honeywell Corporate Honeywell Process Solutions Smartline Temperature transmitters Training Classes www honeywell com https www honeywellprocess com https www honeywellprocess com en US explore products instrumentation temperature transmitters and sensors smartline temperature Pages default aspx https www honeywellprocess com en US training Pages default aspx Telephone and Email Contacts Area Organization Phone Number United States Honeywell Inc 1 800 343 0228 Customer Service and Canada 1 800 423 9883 Global Technical Support Global Email Honeywell Process ask ssc honeywell com Support Solutions Page iv FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Symbol Definitions The following table lists those symbols used in this document to denote certain conditions Symbol Definition HOO amp CAUTION gt gt gt p S ATTENTION Identifies information that requires special consideration TIP Identifies advice or hints for the user often in terms of performing a task REFERENCE EXTERNAL Identifies an additional source of information outside of the bookset REFERENCE INTERNAL Identifies an additional source of information within the bookset Indicates a situation which if not avoided may result in equipmen
13. 0 to 3000 ohms e mV 100 to 1200 mV e mV1 20 to 125 mV e PT1000_A_385 IEC 751 e PT100_A_385CIEC 751 e PT200_A_385 IEC 751 e PT25_A_385 IEC 751 e T C Type B IEC 584 1 and NIST 175 e T C Type E IEC 584 1 and NIST 175 e T C Type J IEC 584 1 and NIST 175 e T C Type K IEC 584 1 and NIST 175 e T C Type N IEC 584 1 and NIST 175 e T C Type R IEC 584 1 and NIST 175 e T C Type S IEC 584 1 and NIST 175 e T C Type T IEC 584 1 and NIST 175 SENSOR_CONNECTION_1 and SENSOR_CONNECTION_2 specify the wire count used for the respective sensors The possible values are 2 Wire 3 Wire and 4 Wire This selection can be changed only for RTDs and is always 2 Wire in case of TC SENSOR_1_INFO and SENSOR_2_INFO are user editable fields of the respective sensors The user editable field is of 32 characters and can be used to store user desired information such as model or type of sensor SENS_RESIS_1 and SENS_RESIS_2 specify the resistance of the respective sensors Sensor Methods There are three sensor methods available and are as follows Clear latch This method clears the latched states of PV Sensor Reset This method resets the Sensor Board The method can be run only in OOS mode It also clears the latched states or faults Redundant Switch to Sensor 1 When Redundant temperature value is enabled this method can be used to switch from Sensor 2 to Sensor 1 if PV1 is good Revision 1 0 FOUNDATION Fieldb
14. A input Figure 16 Signal Characterizer Curve The values of x must increase sequentially for interpolation to be applicable If not a configuration error is set in BLOCK_ERR and the Actual mode of the block goes to Out of Service mode If the curve has m points m lt 21 the non configured points xm 1 ym 1 xm 2 ym 2 X21 y21 is set to INFINITY to mark them as unused Since x1 is the smallest specified value for the input and x is the largest the output is at yl when the input is smaller than x1 and the output is at Ym when the input is larger than Xm Since the ends of the y curve act as limits the OUT status is shown when either limit is active Backward Control path A reverse function swaps the interpretation of IN_2 and OUT_2 that provides a way to do reverse calculation using the same curve If the parameter SWAP_2 is set to True the block provides IN_1 x and OUT_1 y while IN_2 y and OUT_2 x If the function is not sequential in y and SWAP_2 is True BLOCK_ERR indicates a configuration error and the Actual mode goes to Out of Service mode for x A function is said to be sequential when y values always increase or decrease when x values increase If SWAP_2 False IN_1 and IN_2 have the same engineering units defined in X_RANGE and OUT_1 and OUT_2 use the units defined in Y RANGE If SWAP_2 True OUT _1 and IN_2 have Y_RANGE and OUT _2 and IN_1 have X_RANGE Page 88 FOUNDATION Fieldbu
15. Analog Input block mode is in OOS mode with Block Configuration Error Read CHANNEL parameter and range CHANNEL must be set to a valid value and cannot be left at the initial value of zero XD_SCALE UNITS_INDX must be compatible with the units in the transducer block for the channel Read L_TYPE parameter L_TYPE must be set to Direct Indirect or Indirect Square Root and cannot be left at the initial value of zero Check if L_TYPE Direct When L_TYPE Direct XD_SCALE and OUT_SCALE must contain the same range values EU_0 and EU_ 100 Value of output seems wrong Read Linearization Type Check the L_TYPE setting Read Scaling Check XD_SCALE and OUT_SCALE Process and block alarms do not work Read FEATURE_SEL Reports are not selected in FEATURE_SEL If features do not include Reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Read Alarm Summary Disable Check that process and block alarms are not disabled Cannot set alarm limits Read Scaling Limit values are outside the OUT_SCALE EU_0 and OUT_SCALE EU_ 100 values Set values within range Page 114 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Troubleshooting the Proportional Integral Derivative PID block Table 25 PID block Problem Cause Things to
16. BKCAL_IN of the upstream block Value of output does not make sense Check Cascade Initialization Assure that the output can move an actuator Block alarms are not reported Read FEATURE_SEL Reports are not selected in FEATURE_SEL If features do not include Reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 115 Troubleshooting the Input Selector block Table 26 Input Selector block Problem Cause Things to check Recommended Action Input Selector block mode is in OOS and does not change to AUTO mode Read MODE_BLOCK PERMITTED Add AUTO mode to MODE_BLOCK PERMITTED Read MODE_BLOCK ACTUAL of Resource block If necessary Set MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Schedule Block is not scheduled and therefore cannot execute to go to Target Mode Schedule the block to execute Input Selector block mode is in OOS mode with Block configuration Error Check SELECT_TYPE SELECT_TYPE must be set toa valid value and cannot be left at 0 Status of output is Bad Check Inputs Make sure at least one input has status as good Check OP_SELECT OP_SELECT is not set to 0 or it is link
17. CYCLE_SEL allows the person doing the configuration to indicate that one or more of these execution types can be used by the device MIN_CYCLE_T is the minimum time to execute a cycle the minimum cycle time supported is 100 ms MEMORY MEMORY SIZE is the size of the resource for configuration of function blocks it is represented in kilobytes SHED_RCAS and SHED_ROUT set the time limit for loss of communication from a remote device These constants are used by each function block and are configurable values MAX NOTIFY The MAX_ NOTIFY parameter value is the maximum number of alert reports that this resource can send without getting a confirmation and to control alert flooding adjust the LIM_NOTIFY parameter to a lower value If LIM_NOTIFY is set to zero no alerts are reported The CONFIRM_TIME parameter is the time for the resource to wait for confirmation of receipt of a report before trying again FEATURES The bit strings FEATURES and FEATURE_SEL determine optional behaviour of the resource FEATURES bit string defines the available features it is read only FEATURE_SEL is used to turn on an available feature by configuration Reports Page 18 If the Reports option is set in the Features bit strings the transmitter actively sends alerts to host master If it is not set the host master must poll for alerts FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 SOFT W LOCK and HARD W LOCK There are
18. Six bytes whose constituent bits represent the various status conditions set by the Sensor Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 51 Attributes Supported Modes The block supports the following modes e AUTO Automatic e OOS Out of Service Alarm Types The block supports standard block alarms see section 3 2 Page 52 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 7 LCD Transducer block The LCD Transducer block supports Basic and Advanced Display The block is used to configure the basic or advanced display connected to the STT850 transmitter The block stores the LCD configurations and sends these values to the Display while the transmitter is powered up or restarted The STT850 device supports upto eight LCD screens LCD Basic Configuration Data Transducer Advanced Display Update Data Block Display Figure 6 LCD Transducer Block A ATTENTION The initial configuration of LCD transmitter is configured to show four screens with Primary Value 1 Primary Value 2 Secondary Value and Electronics temperature The Display shows the available set of process variables and all function block inputs outputs In addition the block reports the current device status and errors If a function block parameter which is not currently a part of the control strategy is selected an error ap
19. The transmitter includes FOUNDATION Fieldbus electronics for operating in a 31 25 Kbit s Fieldbus network and can interoperate with any FOUNDATION Fieldbus registered device The Honeywell SmartLine STT850 is a high performance Temperature transmitter offering high accuracy and stability over a wide range of process and ambient temperatures The STT850 Fieldbus device is fully tested and compliant with Honeywell Experion PKS providing the highest level of compatibility assurance and integration capabilities Integration with Honeywell s Experion PKS offers the following unique advantages through Smart Connection suite e Transmitter messaging To enhance safety and productivity through clear identification and assignment of maintenance tasks in the local transmitter display e Maintenance mode indication To enhance Safety through System initiated command to identify that the device is available for maintenance e FDM Plant Area Views with Health summaries To reduce the time to identify diagnose and fix device problems by providing an overview of device health based on user defined groups in the Honeywell Field Device Manager SmartLine easily meets the most demanding needs for temperature measurement applications The device can also provide advanced calculation and control capability via the use of the optional PID signal characterizer arithmetic input selector and output splitter blocks The best in class features
20. as well as the potential for inrush current during power up For reference the STT850 provides the following e Max current draw observed during firmware download 28 mA e Normal quiescent current 18 mA e Inrush when powered on 28 mA Downloading the File The firmware file to be downloaded is called as Gendomain file and have the file extension ffd File Name The file name is constructed as follows Manufacturer ID _ Device Type Domain Name _ Software e 99 66 99 Name _ Software Revision ffd where Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 103 Manufacturer ID is represented as six hexadecimal digits leading and trailing zeroes are included Device Family is represented as four hexadecimal digits leading and trailing zeroes are included For Multidomain devices Device Family is replaced by Multidomain Family Device Type is represented as four hexadecimal digits leading and trailing zeroes are included Leading 0 s are not suppressed for Manufacturer ID and Device Type Trailing blanks are stripped from Device Family Domain Name Software Name and Software Revision If Software Name or Software Revision is composed of all blanks then the underscore that would have proceeded is omitted to prevent names with two adjacent underscores or from having the underscore c
21. the corresponding input IN_n is discarded If there are no inputs left or if there are inputs fewer than MIN_GOOD inputs then the value of SELECTED becomes zero Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 77 Selection Processing e If OP_SELECT is non zero the OP_SELECT value determines the selected input irrespective of the SELECT_TYPE selection The value of SELECTED is the number of the input used e IfSELECT_TYPE is First Good it transfers the value of the first remaining input to the output of the block The value of SELECTED is the number of the input used SELECT_TYPE MIN_GOOD STATUS_OPTS IN_n DISABLE n T T T MAN e I Selection OUT Mode AUTO OP_SELECT SELECTED Figure 12 Input Selector Schematic Diagram e If SELECT_TYPE is Minimun it transfers the lowest value to the output of the block The value of SELECTED is the number of the input with the lowest value e IfSELECT_TYPE is Maximun it transfers the highest value to the output of the block The value of SELECTED is the number of the input with the highest value e If SELECT_TYPE is Middle if there are 3 or 4 values the highest and lowest value is discarded The average of the remaining two values is computed and the value is transferred to the output of the block The value of SELECTED becomes zero if an average is used else the value of SELECTED is the number of the input with
22. their associated parameters which support the application in which they are contained Entities within the FBAP such as blocks alert objects trend objects parameters display lists etc Temperature Thermocouple A value or variable which resides in block objects Process Manger A standard control algorithm Also refers to a PID function block Process Variable Printed Wiring Assembly Radio Frequency Interference Resistance Temperature Detector The software component that implement the Foundation Fieldbus communications protocol specifications including FMS FAS DLL SM and NM A coded value that qualifies dynamic variables parameters in function blocks This value is usually passed along with the value from block to block Status is fully defined in the FF FBAP specifications Page viii FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Term Definition System Management System Management Agent System Management Information Base TAC Trim Point URL1 URL2 URV US Vac Vdc Virtual Communication Relationship Virtual Field Device Provides services that coordinate the operation of various devices in a distributed fieldbus system Part of the device software that operates on system management objects A collection of objects and parameters comprising configuration and operational information used for control of system management operations Technical Assista
23. 3 The Temperature Transducer block supports the following process variables e Primary Value 1 e Primary Value 2 e Cold Junction Temperature e Electronics Temperature e Differential Temperature e Average Temperature e Redundant Temperature e Split Range Temperature Page 28 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 PRIMARY _VALUE_1 and PRIMARY VALUE 2 are the values and statuses of the measured temperatures at input 1 and 2 respectively PRIMARY_VALUE_RANGE_1 and PRIMARY_VALUE_RANGE_2 include the limits units and the decimal point position number of significant digits to the right of the point of the PRIMARY_VALUE_1 and PRIMARY_VALUE_2 respectively The status of PV1 or PV2 goes bad when the input measured from Sensor 1 or Sensor 2 is invalid for example under circumstances when Enable Break Detect is set and the sensor wires get disconnected When the units of the PRIMARY VALUE_1 and PRIMARY VALUE _2 are changed their limits also automatically change The engineering units must match the units selected in the parameter XD_SCALE of the Analog Input block that reads the channel with this value SECONDARY_VALUE is the value and status of the Cold Junction Temperature SECONDARY_VALUE_RANGE is the limit of the SECONDARY_VALUE and it is a read only parameter The units of the SECONDARY_VALUE can be changed as desired changing the units of the value automatically changes the limits The engineer
24. 3 6 Diagnostic Transducer block cccsssseeecsseeeeeesseeeeeenseeeeeenseeneeenseenenenseeeenens 47 EXOCUUG Ma cates te ecae te sc ctet a Mine ote Met E ce ati 47 ParaMeter E Ke AAEE E EE E SEEE E E E ES E AE E 51 ANAA 101 1S E I E L EEE E T E TA T E E E E E ES 52 3 7 LOD Transducer DIOCK nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn nnmnnn nnmnnn nnmnnn 53 EIEEE EAE ATETEA A EATE EA EEE AEAT 53 Advanced Display seii ninenin aiioa a ee HL a ER 54 Parameters EE AANA E A S NA seated O E NE E TAE EATE E E A A A E coeuae 57 PNL STONE E A E PES N E E A E EE E E E A A EA A TE 59 3 8 Analog Input DIOCK ssssssnnssnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn nnana 60 EXGCULOMN DANE RE E PAE AE E E E E E A EE AE 60 EEIE EE EERE EEA EEEE E A A deans aatacchate 64 PACING Si cack cates V E E E AE T E ET AO A A EE E EE ea ece 66 3 9 Proportional Integral Derivative PID block with auto tune 67 EXGCUUON i323 Sensei he Me aaron es ce EE E AA shri t tata ebs iste Me och eet PES SRP ld te ob oles 68 Auto TUNING erene ee ae ee ele Se eee A E 71 Auto tuning procedures i s 1 catia A ete ad ee ees 71 Parameter St R AE EEE E E ETA savior waa vatavesa tities Teavtiaucieoaev es EE 72 PATIL S S528 sis chag tess E edocs antoncnad nc nes caipah acts eonces secu ante nae oct A O A E EE E eae eateed 76 3 10 Input Selector DIOCK sccsceeceesccesseeeeseeeenseeeeeeesesnaeseseeeenseeeseaeseseaesnseeeeeen
25. Active status in the Status attribute As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed DISP_SEQ_TIME Periodic rotation time of the display screens in seconds Range 3 30 sec LANGUAGE Language selection for the Display Supported Languages English French German Spanish Turkish Italian Chinese Japanese and Russian DISPLAY_TYPE Type of Display Connected Possible Values No Display Connected Basic Display Advanced Display LCD_CONTRAST Contrast of the LCD screen can be controlled by this parameter Its range is 1 9 DISP_FW_VER Version Number of Display Firmware BLOCK_TYPE Block type selection for screen process variable The BLOCK_TYPE is present in all the eight screens BLOCK_TYPE_1 BLOCK_TYPE_2 BLOCK_TYPE_3 BLOCK_TYPE_4 BLOCK_TYPE_5 BLOCK_TYPE_6 BLOCK_TYPE_7 and BLOCK_TYPE_8 PARAM_INDEX Parameter selection for screen process variable Parameters need to be chosen based on Block type The PARAM_INDExX is present in all the eight screens PARAM_INDEX_1 PARAM_INDEX_2 PARAM_INDEX_3 PARAM_INDEX_4 PARAM_INDEX_5 PARAM_INDEX_6 PARAM_INDEX_7 and PARAM_INDEX_8 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 57 Parameter Description UNIT_TYPES Unit selection for screen process varia
26. Device status and operational faults are identified by viewing key parameter values or status and then interpreting their meaning using the following tables A ATTENTION Additional diagnostics are available through supervisory and control applications that monitor and control fieldbus networks These diagnostics and messages are dependent upon the capabilities of the application and the control system that is used Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 105 6 2 Troubleshooting the transmitter Device not visible on the network If a device cannot be seen on the fieldbus network the device may not be powered up or possibly the supervisory or control program is not able to find or polling the node address of that device See the following table for possible causes and recommended actions Symptoms Device not visible on the network Possible cause Things to check Recommended action Device may have a node address that is within the unpolled range of addresses Verify the following settings e First Unpolled Node e Number of Unpolled Nodes Set Number of Unpolled Nodes to 0 No power to the device Measure the DC voltage at the device s SIGNAL terminals Voltage must be within the limits If no voltage or voltage is out of operating limits determine the cause and correct it Insufficient current to the device Measure the DC curre
27. Diagnostics MASK If the alarms are MASKED then the alarms do not report Unmask the alarms Check Field Diagnostics Priority If the priority is zero alarms do not report For information on how set the priority see Table 4 Check Field Diagnostics MAP If alarms are not mapped then Map alarms to any of the Field Diagnostics alarm parameters Page 108 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Troubleshooting the Temperature Transducer block Table 21 Temperature Transducer block Problem cause Things to check Recommended action Transducer block mode is in OOS and does not change to AUTO mode Read MODE_BLOCK PERMITTED Add AUTO mode to MODE_BLOCK PERMITTED Read MODE_BLOCK ACTUAL of Resource block If necessary Set MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Transducer block does not produce valid Primary value Check the primary Value Range Ensure that primary Value Range has valid ranges and units assigned Read BLOCK_ERR See Table 3 for details on BLOCK_ERR Verify parameter PRIMARY_VALUE is not valid STATUS Good or Uncertain VALUE active Isolate transmitter from process Perform Correct Reset calibration Recalibrate the transmitter Check Sensor Configuration Verify that the SENSOR_TYPE is assigned corre
28. Probable Cause Recommended Action Al block is executing but status of OUT parameter is Good alarm status Constant Al block is in Manual mode Write AUTO to MODE_BLK parameter of Al block Al block is executing but status of OUT parameter is Uncertain alarm status inaccurate Transducer block parameter CAL_SOURCE NONE or a value of 1 using default characterization values Recalibrate transmitter See Calibration Recalibrate transmitter Excess span correction correction at CAL_POINT_HI is greater than 5 of CAL_POINT_HI See Calibration Recalibrate transmitter Excess zero correction correction at CAL_POINT_LO is greater than 5 of the URL characterized range of the sensor See Calibration for Zero Correct PV value of transducer block is outside range of XD_SCALE When Al block CHANNEL 1 OR OUT value of Al block is outside of OUT_SCALE range Sensor board may have been damaged Check the transmitter for accuracy and linearity Replace the sensor board and recalibrate if needed Al block is executing but status of OUT parameter is One of the following Al alarms is active in ALARM_SUM CUR RENT HI_HI HI LO LO_LO OUT has crossed the corresponding limit HI_HI_LIM HI_LIM LO_LIM LO_LO_LIM and is either still past the limit or is in the hysteresis range ALARM_HYS is the percentage of OUT_SCALE that is used for alarm hys
29. SP value to track the PV value The SP value tracks the PV value while the block is in Actual mode of IMan LO or ROut or when the target mode of the block is MAN The block provides a switch for BYPASS which is available to the operator if the Bypass Enable control option is set as True BYPASS can be used in secondary cascade controllers that have a Bad PV The BYPASS Enable option is required so if BYPASS is set as True not all cascade control schemes are stable BYPASS can only be changed when the block mode is in MAN or OOS mode When BYPASS is set the value of SP in percent of range is passed directly to the target output and the value of OUT is used for BKCAL_OUT When the mode is changed to Cas the upstream block is requested to initialize to the value of OUT When a block is in Cas mode on the transition out of BYPASS the upstream block is requested to initialize to the PV value irrespective of the Use PV for BKCAL_OUT option GAIN RESET and RATE are the tuning constants for the P I and D terms respectively The block provides existing controllers that are tuned by the inverse value of some or all of them such as proportional band and repeats per minute The human interface to these parameters must be able to display the user s preference BAL_TIME parameter can be used to set the rate at which the I term moves towards balancing the difference between the previous integral term and the limited output The Direct Acti
30. STT850 Temperature Transmitter User s Guide Page 55 Page 56 Block FF Parameter IN CAS_IN BKCAL_IN BKCAL_OUT RCAS_IN ROUT_IN RCAS_OUT ROUT_OUT FF_VAL TRK_VAL SIGNAL CHARACTERIZER BLOCK OUT_1 OUT_2 IN_1 IN_2 OUTPUT SPLITTER BLOCK CAS_IN BKCAL_IN_1 BKCAL_IN_2 BKCAL_OUT OUT_1 OUT_2 DISCRETE INPUT BLOCK PV_D FIELD_VAL_D OUT_D FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameters List Table 11 LCD Transducer block parameters Parameter Description The revision level of the static data associated with the function ST_REV block TAG_DESC The user description of the application of the block STRATEGY Used to identify grouping of blocks ALERT_KEY The identification number of the plant unit MODE_BLK The actual target permitted and normal modes of the block This parameter reflects the error status associated with the hardware or software components associated with a block It is a bit BLOCK ERR string so that multiple errors may be shown UPDATE_EVT This alert is generated by any change to the static data The BLOCK_ALM is used for all configuration hardware and connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active BLOCK_ALM sets the
31. Temperature Sensor Core Temperature CT CJ Delta and Transmitter Electronics A ATTENTION The PVs and core temperature diagnostics are tracked in six ways Maximum in lifetime e Minimum in lifetime e Accumulated time above a limit e Accumulated time below a limit e Time stamp of last transition above a limit e Time stamp of last transition below a limit Execution The block has Sensor and Device diagnostics The block is executed as follows Sensor Sensor Diagnostics Sensor Diagnostics has two components Sensor Diagnostics and Sensor Voltage diagnostics These are updated based on the selection in the Upload Track Data The device updates the PV tracking data of sensor module and processes the rest of the diagnostic data such as electronic temperature Time in Service etc PV diagnostics and Sensor Core temperature diagnostics are displayed in the Sensor Diagnostics record based on the selection in the Upload Track Data Maximum Value and Minimum Value are the maximum and minimum values reached during the life time of the device Process Variable Unit is the engineering unit of the process variable currently under use The Over Range Counter is the accumulation of minutes that device s PV or Sensor Core temperature has been above the value of maximum specification limit less 10 of range Example for temperature ranging from 200 to 850 Deg C 850 Deg C 105 Deg C 745 Deg C The Over Range Date is the date and time whe
32. Temperature Transmitter User s Guide Revision 1 0 Parameter Description GRANT_DENY Options for controlling access of host computers and local control panels to operating tuning and alarm parameters of the block Not used by the device INPUT_OPTIONS Option bit string for handling the status of the auxiliary inputs Revision 1 0 IN The block input value and status IN_LO Input of the low range transmitter in a range extension application IN_1 The first block input value and status IN_2 The second block input value and status IN_3 The third block input value and status RANGE_HI Constant value above which the range extension has switch to the high range transmitter RANGE_LO Constant value below which the range extension has switch to the high range transmitter BIAS_IN_1 The bias value for IN_1 GAIN_IN_1 The proportional gain multiplier value for IN_1 BIAS_IN_2 The bias value for IN_2 GAIN_IN_2 The proportional gain multiplier value for IN_2 BIAS_IN_3 The bias value for IN_3 GAIN_IN_3 The proportional gain multiplier value for IN_3 COMP_HI_LIM Determines the high limit of the compensation input COMP_LO_LIM Determines the low limit of the compensation input ARITH_TYPE The set of 9 arithmetic functions applied as compensation to or augmentation of the range extended input BAL_TIME Specifies the time for a
33. Type AI OUT Bad sensor Critical See Al BLOCK_ERR for message failure See Table 3 for details on BLOCK_ERR See BLOCK_ERR of all blocks in device for message See Table 35 STATUS Bad device Critical See Al BLOCK_ERR for message failure See Table 3 See BLOCK_ERR of all blocks in device for message See Table 35 Good constant Non See Table 34 Uncertain critical Al ALARM_SUM Block alarm Critical See BLOCK_ERR of all blocks in CURRENT Non the device in Table 3 Critical Process alarm Non See Table 34 Critical All Blocks Block Non Check the value of all configurable BLOCK ERR Configuration Critical parameters in the block and correct Error 1 if necessary See Resolving the block configuration errors See Table 3 for Simulation Non Set simulate jumper to N on the description of Active 3 critical electronics board and set the BLOCK_ERR ENABLE_DISABLE field to 1 of messages the SIMULATE parameter See section 6 5 Input Critical Write Processor or 4 to RESTART Failure Process parameter of resource block If Variable has failure continues replace the sensor Bad Status 7 board Memory Failure Critical Set Resource block to OOS 9 Lost Static Data Critical Write Processor or 4 to RESTART 10 parameter Lost NV Data Critical Wait for 10 seconds 11 Readback Critical See Critical Fault NOTE Check Failed 12 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 125
34. advanced features such as Transmitter Messaging Bar Graph and Trends while the Advanced Display supports all these advanced features Transmitter Messaging The transmitter messaging is a feature that allows message typed through host up to 64 alphanumeric characters which is sent to the Local Display of the transmitter The message is shown on the Display interspersed with the configured screens Clear Message To stop displaying the message select the Clear Message method After selecting this option the device clears the entered Message and it is not shown in the Display FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Table 10 lists the allowed parameters that can be configured using the LCD block Table 10 LCD parameters Block FF Parameter TEMPTB PRIMARY_VALUE_1 PRIMARY_VALUE_2 Dual Input only SECONDARY_VALUE EL_TEMPERATURE DIFFERENTIAL_VALUE Dual Input only AVERAGE_VALUE Dual Input only REDUNDANT_VALUE DUAL Input only SPLIT_RANGE_TEMP_VALUE Dual Input only TEMP_DELTA_VALUE DUAL Input only SENS_RESISTANCE_1 SENS_RESISTANCE_2 DUAL Input only ANALOG INPUT BLOCK PV OUT FIELD_VAL ARITH IN IN_LO IN_1 IN_2 IN_3 ISEL OUT IN_1 IN_2 IN_3 IN_4 PID BLOCK PID SP PV OUT Revision 1 0 FOUNDATION Fieldbus
35. and alarm parameters of the block Not used by device STATUS_OPTI It helps to select options for status handling and processing The ONS supported status option for the integrator block is Use Uncertain as Good Uncertain if MAN mode IN_1 The block input value and status IN_2 The block input value and status IN_3 The block input value and status IN_4 The block input value and status DISABLE_1 Parameter to switch off the input from being used 0 On 1 Off DISABLE_2 Parameter to switch off the input from being used 0 On 1 Off DISABLE_3 Parameter to switch off the input from being used 0 On 1 Off DISABLE_4 Parameter to switch off the input from being used 0 On 1 Off SELECT_TYPE Determines the selector action First Good Minimum Maximum Middle and Average Revision 1 0 MIN _ GOOD The minimum number of inputs which are Good is less than the value of MIN_GOOD then set the OUT status to Bad SELECTED The integer indicating the selected input number OP_SELECT An operator settable parameter to force a given input to be used FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 79 Parameter Description UPDATE_EVT This alert is generated by any change to the static data BLOCK_ALM The block alarm is used for all configuration hardware connection failure or system problems in the block The cause of the alert is e
36. and click OK 2 The following dialog box appears Control Builder x 3 The selected device s DD file has been tokenized using a tokenizer Ci of version greater than or equal to 5 0 and may contain constructs not yet supported by the system However the device template will be created ignoring those constructs if any Click OK Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 7 Page 8 4 5 Type the Device Type Name and then click Save As A ATTENTION In some versions of Experion the user must select the capability level 1 for All Function Blocks The following dialog box appears Control Builder Ea Some of the Device s Black supports conditional Use Parameter Definition Editor to evaluate the conditionals Click OK The following dialog box appears Control Builder xi Successfully created the device type STT8SOFF_0101_1 To edit the blocks in this device locate the blocks under this device in the Control Builder library tree and double click OK A ATTENTION The device type STT850FF_0101_1 is used as an example FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 6 10 Revision 1 0 The device is created in the Library Containment window under the folder named Honeywell A ATTENTION When using Experion PKS before commissioning the device check the Access attribute value of t
37. block objects it is recommended to start with the resource block For example if the resource block is in OOS mode all other blocks in the device are also in the OOS mode Troubleshooting block configuration errors The block configuration errors prevent a device block from leaving the OOS mode The BLOCK_ERR parameter bit 1 shows whether a block configuration error is present The following section explains the troubleshooting for all the function blocks Troubleshooting the Resource block Table 20 Resource block Problem cause Things to check Recommended action Resource block mode is OOS mode and is not going to AUTO mode Read MODE_BLOCK PERMITTED Add AUTO mode to MODE_BLOCK PERMITTED Read MODE_BLOCK ACTUAL of Resource block If necessary Set MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Resource block is not running Check BLOCK_ERR for errors See Table 3 for details on BLOCK_ERR Incorrect revision level of the device firmware Read SOFTWARE_REV See section 6 2 Block alarms are not reported Read FEATURE_SEL Reports are not selected in FEATURE_SEL If features do not include Reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Field diagnostics alarms are not reporting Check Field
38. block value to match an input output or calculated value or the time for dissipation of the internal balancing bias BIAS The bias value is used to calculate the output GAIN The gain value is used to calculate the output OUT_HI_LIM The maximum output value allowed OUT_LO_LIM The minimum output value allowed UPDATE_EVT This alert is generated by any changes to the static data BLOCK_ALM Used for all configuration hardware connection failure or system problem in the block The cause of the alert is entered in the subcode field The first active alarm sets the active status in the status parameter When the Unreported status is cleared by the alert reporting test other block alert may be reported without clearing the Active status if the subcode has changed FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 85 Attributes Page 86 Supported The block supports the following modes Modes e AUTO Automatic e MAN Manual e OOS Out of Service Alarm Types The block supports standard block alarms see section 3 2 Status The INPUT_OPTS bit string controls the use of auxiliary inputs with Handling less than Good status The status of unused inputs is ignored The status of the output is the worst of the inputs used in the calculation after applying INPUT_OPTS FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 12 Signal Characterizer block The Signal Charac
39. cccccceseeeeeeeeseseeceeeeeeeeeeesssneeeeeaeeeeees 49 Table 9 Diagnostic Transducer block parameters ccccceeeeeeeeeetteeeeeeees 51 Table 10 LCD parametersiiieiccccicceed cleaeinssatetvelsaaienalsde sce sadervetauetuamwned aden thwtanss 55 Table 11 LCD Transducer block parameterS c ccceeeeeeeeeeeeeeeeeeeeeeeeteeees 57 Table 12 Analog Input block parameters cccccccccccccceecceceeceeeeeeeeeeeeeeeeeeess 64 Table 13 PID Tuning parameters sii cccsscecsheiieedieesrtchaninadiertyattebler abe 70 Table 14 PID block parametels cccccccccecceeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 72 Table 15 Input Selector block parameterS eeecceeeeeeeeeeeeteeeeeteeeeeeeeeeeteeee 79 Table 16 Arithmetic block parameters cccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeneeeeeeeeeeees 84 Table 17 Signal Characterizer block paraMetelS cccceceeceeeeeeeeeeeeeeeeeee 89 Table 18 Output Splitter block parameters cccccccccccccececececeeeeeeeeeeeeeeeeeees 94 Table 19 Discrete Input block parameterS cccccccceeeeeeeeeeeseeeeeeeeeeeeeenees 97 Fable 20 Resource plock sierstenen s a Eiaa EEEa EEEE EREEREER 108 Table 21 Temperature Transducer block ssssssessserrnnesserrrrrrnnerssrrrrrrrn 109 Table 22 Diagnostics Transducer block sessesssssesseesseeseeeseeeeseeeees 112 Table 23 LCD Transducer block ssssnerrrrrrrrrrrrrrtrrtrtrrttrrrtrrrrrrrrrrrr
40. change in the IN value Page 72 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameter Description Revision 1 0 BYPASS Used to override the calculation of the block When enabled the SP is sent directly to the output CAS_IN The remote setpoint value from another block SP_RATE_DN Ramp rate for downward SP changes When the ramp rate is set to zero the SP is used immediately SP RATE_UP Ramp rate for upward SP changes When the ramp rate is set to zero the SP is used immediately SP_HI_LIM The highest SP value allowed SP_LO_LIM The lowest SP value allowed GAIN The proportional gain value This value cannot 0 RESET The integral action time constant BAL_TIME The specified time for the internal working value of bias to return to the operator set bias Also used to specify the time constant at which the integral term moves to obtain balance when the output is limited and the mode is AUTO CAS or RCAS RATE The derivative action time constant BKCAL_IN The analog input value and status from another block s BKCAL_OUT output that is used for backward output tracking for bump less transfer and to pass limit status OUT_HI_LIM The maximum output value allowed OUT LO_LIM The minimum output value allowed BKCAL_HYS The amount the output value must change away from its output limit before limit status is t
41. check alarms that are active CHECK_ALM parameter indicates check alarms These conditions do not have a direct impact on the process or device integrity FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 21 OFFSPEC_ALARMS Indicates if the device is operating outside its specified range or internal diagnostics indicates deviations from measured or set values due to internal problems in the device or process characteristics e OFFSPEC_MAPPED parameter contains a list of informative conditions that do not have a direct impact on the device s primary functions Following are the OFFSPEC_MAPPED conditions o Input 1 Health Warning o Input 2 Health Warning o No Factory Calibration o Input 1 Open o Input 2 Open o Input 1 TB6 Open o Input 2 TB8 Open o Unreliable Sensor Communications o Excess Delta Alert e OFFSPEC_MASK parameter masks any of the failed conditions listed in OFFSPEC_MAPPED A bit on means the condition is masked out from alarming and is not reported e OFFSPEC_PRI parameter designates the alarming priority of the OFFSPEC_ALM The default is 0 e OFFSPEC_ACTIVE parameter displays the offspec alarms that are active e OFFSPEC_ALM parameter indicates offspec alarms These conditions do not have a direct impact on the process or device integrity RECOMMENDED_ACTION The RECOMMENDED_ACTION parameter displays a text string that give a recommended course of action to take based on which type and whic
42. for it with respect to operating controls displays and mechanical installation An STT850 FF temperature transmitter can be digitally integrated with any FF compliant Host Among Honeywell systems it can be integrated with Experion PKS DCS and also use Field Device manager FDM for asset management and configuration Release Information Document Name Document ID Release Publication Date STT850 Temperature Transmitter Number User s Guide FOUNDATION Fieldbus STT850 Temperature 34 TT 25 07 1 0 November 2014 Transmitter User s Guide References The following list identifies all documents that may be sources of reference for material discussed in this publication STT850 SmartLine Temperature Transmitter User Manual 34 TT 25 03 STT850 SmartLine Temperature Transmitter Quick Start Guide 34 TT 25 04 STT850 SmartLine Temperature Transmitter Safety Manual 34 TT 25 05 STT amp 50 SmartLine Temperature Transmitter HART DE Comms Option User Manual Document 34 TT 25 06 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page iii Patent Notice The Honeywell STT850 SmartLine Temperature Transmitter family is covered by one or more of the following U S Patents 5 485 753 5 811 690 6 041 659 6 055 633 7 786 878 8 073 098 and other patents pending Support and Contact Information For Europe Asia Pacific North and South America contact details refer to the back page of this
43. in the Project Assignment window select the device 4 Right click the device and click Load The instantiated block is loaded into the device Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 101 5 STT850 FF Temperature Transmitter maintenance 5 1 Replacing the Local Display and Electronic Assembly For more information about Local Display and Electronic Assembly refer the STT850 SmartLine Temperature Transmitter User Manual 34 TT 25 03 5 2 Downloading the firmware About firmware download feature The download class indicates how the device operation is affected by the download process There are three types of download classes 1 2 amp 3 The transmitter supports only one type of download class as per FOUNDATION Fieldbus specifications STT850 device FF variant supports download type Class 3 only A class 3 firmware download is performed irrespective of whether the device is ON OFF process Class 3 When class 3 download is performed the device prepares for the download and goes out of the link as the memory of the device is re written with the new firmware After the restart of the device the device comes back to the link automatically However the device retains the following credentials e Retains its original Device ID e Retains only its System Management VFD in its VFD_LIST e Retains its Node Address and PD Tag only when the same firmware version is reloaded e Retains its mana
44. limit switch calculation The LIM_SW_HYST for all the four limit switches are represented as LIM_SW_HYST_1 LIM_SW_HYST_2 LIM_SW_HYST_3 and LIM_SW_HYST_4 The combination of Set Point temperature Limit Switch Direction and Hysteresis determines the temperature at which the transition from On to Off and vice versa must occur Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 33 If the High_Limit option is enabled for Limit Switch Direction then the following occurs e Transition occurs from Off to On when process value goes above setpoint temperature e Transition occurs from On to Off when the process value goes below Set Point temperature Hysteresis If the Low_Limit option is enabled for Limit Switch Direction then the following occurs e Transition occurs from Off to On when process value goes below setpoint temperature e Transition occurs from On to Off when the process value goes above Set Point temperature Hysteresis LIM_SW_UNIT The units of limit switch parameters LIM_SW_SP_n and LIM_SW_HYST_n The LIM_SW_UNIT for all the four limit switches are represented as LIM_SW_UNIT_1 LIM_SW_UNIT_2 LIM_SW_UNIT_3 and LIM_SW_UNIT_4 Page 34 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Calibration Calibration is performed in order to get the precise value If there is any offset in value it can be eliminated by performing calibration For example f
45. operator interface establish communication with the device on the Fieldbus network If the device is not visible on the network verify that the device has been installed properly Identify the transmitter Verify the Device ID of the transmitter by checking the device parameters The parameters contain the following information e Transmitter type temperature transmitter pressure transmitter flow transmitter and remote meter e Device Tag tag description of the transmitter e Sensor serial number e Firmware revision level revision level of the firmware elements Check the transmitter parameters listed in Table 2 and note down the values to identify the transmitter Hi ATTENTION It is recommended to verify the correct version of the Device Description file is present on the host computer This helps in getting the correct parameter names and its corresponding descriptions while viewing the device parameters Table 2 Transmitter parameters Parameter To verify Resource block That the transmitter is of the proper DEV_TYPE device type For all the STT850 type temperature transmitters the value is 0006 Device Tag The Device Tag is correct Physical device tag name of the transmitter Device Tag name A ATTENTION The Device Tag name can be set and viewed using the Fieldbus device configurator application Use a device tag name up to sixteen characters that does not contain spaces Res
46. parameters Parameter Description ST_REV The revision level of the static data associated with the function block The revision value increments each time a static parameter value in the block is changed TAG_DESC The user description of the application of the block STRATEGY Used to identify grouping of blocks This data is not checked of processed by the block ALERT_KEY The identification number of the plant unit This information may be used in the host for sorting alarms etc MODE_BLK The actual target permitted ad normal modes of the block Target The mode to go to Actual The mode the block is currently in Permitted Allowed modes that target may take Normal Most common mode for target BLOCK_ERR This parameter reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown PV It calculates the proportions of IN and IN_LO to for PV OUT The analog output value and status PRE_OUT Displays what would be the OUT value if the mode is AUTO or lower PV_SCALE The high and low scale values the engineering units code and the number of digits to the right of the decimal point associated with the PV OUT_RANGE The high and low scale values engineering units code and number of digits to the tight of the decimal point associated with OUT Page 84 FOUNDATION Fieldbus STT850
47. proceed to Step 8 e ERROR In case of error the calibration has failed The user may have to repeat the calibration by entering correct values Check CAL_VALUE_n to see the value after calibration The STT850 device has six methods corresponding to each calibration type The methods guide the user through the calibration steps described above and provide an improved user experience Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 37 Calibration diagnostics The transducer block keeps track of calibration history for each of the calibration type LRV Correct URV Correct and Corrects Reset for Sensors 1 and 2 The parameters used to track the calibration history are as follows e CURR_TIME_DATE Represents the date and time when the latest calibration was performed e LAST_TIME_DATE Represents the date and time of calibration done prior to the current calibration e PREV_TIME_DATE Represents the date and time of calibration done prior to the last calibration Using UPLOAD_CALIB_DATA the calibration type is selected to update the Current Last and Previous calibration timestamps in the corresponding parameters Page 38 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Sensors SENSOR_TYPE_1 and SENSOR_TYPE_2 are the types of respective sensors Various types of sensors are available and are as follows e Ohms 0 to 500 ohms e Ohms 0 to 2000 ohms e Ohms
48. range extension function has a graduated transfer controlled by two constants referenced to IN An internal value g is zero for IN less than RANGE_LO It is one when IN is greater than RANGE_HI It is interpolated from zero to one over the range of RANGE_LO to RANGE_HI The equation for PV follows PV gxXIN 1 g xXIN_LO If the status of IN_LO is not usable and IN is usable and greater than RANGE_LO then g is set to one If the status of IN is unusable and IN_LO is usable and less than RANGE_HTI then g is set to zero For three auxiliary inputs six constants are used and each input has a BIAS_IN_i and a GAIN_IN_i The output has a BIAS and a GAIN static constant For the inputs the bias is added and the gain is applied to the sum The result is an internal value called t_i in the function equations The equation for each auxiliary input is the following t_i IN_i BIAS_IN_i x GAIN_IN_i If an auxiliary input is unstable to assure smooth degradation the flow compensation functions have limits on the amount of compensation applied to the PV The internal limited value is f Page 82 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 The following function types are supported 1 Flow compensation linear Used for density compensation of volume flow func f x PV _ 1 aiea l 2 x limited 2 Flow compensation square root Usually IN_1 is pressure IN_2 temperature and IN_3 is the com
49. status if the subcode has changed ACK_OPTION Used to set AUTO acknowledgment of alarms ALARM_HYS The amount the alarm value must return within the alarm limit before the associated active alarm condition clears HI_HI_PRI The priority of the HI HI alarm HI_HI_LIM The setting for the alarm limit used to detect the HI HI alarm condition HI_PRI The priority of the HI alarm HI_LIM The setting for the alarm limit used to detect the HI alarm condition LO_PRI The priority of the LO alarm LO_LIM The setting for the alarm limit used to detect the LO alarm condition LO_LO_PRI The priority of the LO LO alarm LO_LO_LIM The setting for the alarm limit used to detect the LO LO alarm condition HI_HI_ALM The HI HI alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm HI_ALM The HI alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm LO_ALM The LO alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 65 Parameter Description LO_LO_ALM The LO LO alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm Attributes Supported Modes The block supports the following modes e AUTO Automatic e MAN Manual e OOS Out of Service Alarm Typ
50. two types of write locks Hardware write lock and Software write lock The software write lock is used to lock the device The software write lock does not need a jumper A hardware write lock is provided with a jumper in the device to perform the write lock operation If the WRITE_LOCK parameter is set it prevents any external change to the static or non volatile database in the Function Block Application of the resource Block connections and calculation results proceeds normally but the configuration is locked A hard write lock is provided by a jumper in the device as indicated in the FEATURES bit string Clearing WRITE_LOCK generates the discrete alert WRITE_ALM at the WRITE_PRI priority If the soft write lock bit is not set as True in the features bit strings the writing to the parameter WRITE_LOCK is rejected by the device For devices that support hard write lock and have the associated FEATURE_SEL attribute enabled the parameter WRITE_LOCK is only an indicator of the state of write lock The writing to WRITE_LOCK is rejected by the device Software write lock To activate write lock the soft write lock supported bit in FEATURE_SEL must be set and then set the WRITE_LOCK to locked To deactivate write lock set the WRITE_LOCK to unlocked Hardware write lock To activate write lock the hard write lock supported bit in FEATURE_SEL must be set and additionally the write lock jumper must be in the correct position as determined by
51. units the decimal places for the display and also the high and low scale of the value This temperature signal becomes the PV value in the AI block and uses the elements of OUT_SCALE in determining the units decimal places and also the high and low scale values of PV The temperature signal leaves the AI block as OUT value which also uses the elements of OUT_SCALE The Transducer scaling XD_SCALE is applied to the value from the channel to produce the FIELD_VAL in percent The XD_SCALE unit s code must match the channel unit s code or be supported by the device if this is not the case the block remains in OOS mode after being configured Page 60 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 PV Simulate Convert Cutoff Filter SIMULATE L_TYPE LOW_CUT PV_FTIME XD_SCALE OUT_SCALE OUT FIELD_VAL Alarms HI LO Figure 8 Analog Input Block Schematic Diagram The OUT_SCALE is normally the same as the transducer but if L_TYPE is set to Indirect or Ind Sqr Root OUT_SCALE determines the conversion from FIELD_VAL to the output PV and OUT always have identical scaling OUT_SCALE provides scaling for PV The block places the value in OUT if the mode is AUTO If MAN mode is allowed write a value to the output The status prevents any attempt at closed loop control using the MAN value by setting the Limit value to Constant The LOW_CUT parameter has a corresponding
52. variable only GAIN and RESET use the error e C RATE and GAIN act on the measured variable only and RESET uses the error PID Tuning Parameters Table 13 lists the valid ranges for the tuning parameters for the PID block Note that OUT_LAG parameter is not configurable when Ideal PID is selected PID_FORM 1 and can be configured when Robust PID is selected PID_FORM 2 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 69 The values given for these tuning parameters are valid under the following conditions e The values assume that the minimum configurable PID function block execution period T is 0 125 seconds e Algorithm typesetting A B or C has no effect on the validation of these tuning parameters The PID function block rejects all values outside the following ranges Table 13 PID Tuning parameters Page 70 Parameter Initial Minimum Maximum Comment Value Value Value PV_FTIME 0 0 200 Units seconds GAIN 0 004 250 GAIN_NLIN 0 004 250 RATE 0 32 Ts 7500 The value of ZERO is permitted to turn sec off rate action RESET INF 2e Ts 7500 The value of INF is permitted to turn sec off reset action Some versions of NI configurator program cannot set INF OUT_LAG Ideal PID N A N A N A Fixed for Ideal PID form not configurable Robust PID 0 2e Ts 7500 Zero permitted which implies no output lag BAL_TIME 0
53. 1 Transmitter installation verification tasks Page 4 Task Description Comment Verify device location Check that the device is installed in the correct physical location Verify device ID Match the device ID with the physical location The device serial number is the PROM ID which is stamped on the transmitter housing nameplate Verify connection with host computer On the operator interface check and to device make sure communications are established with the device on the Fieldbus network Verify or assign Device Tag and Check that the Device Tag and node address address are set If not assign the Device Tag and the correct node A ATTENTION address The transmitter is The Device Tag and address can be shipped at a temporary set and viewed using the Fieldbus 248 address This will device configurator application Use a enable FOUNDATION Device Tag name up to 16 Fieldbus host system to characters that does not contain automatically recognize spaces the device and move it to a permanent address Configure device Using a Fieldbus configuration program create a function block application as part of the device configuration and process control strategy Verify device operation Bring the network online verify operation tune loops and so on FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 2 2 Verifying communication with the transmitter On the
54. 2 LEAD _WIRE_RESISTANCE_2 The lead wire resistance for input 2 Used only for RTDs SENS2_INSTALL_DATE The installation date of sensor 2 It is updated manually by the user SENSOR_1_INFO User editable field of 32 characters for storing user desired information on sensor 1 such as model or type of sensor SENSOR_2_ INFO User editable field of 32 characters for storing user desired information on sensor 2 such as model or type of sensor ENABLE_OPT Used to select various options that affect the calculated temperature values See options of ENABLE_OPT for more details DIFFERENTIAL_VALUE A calculated process variable representing the difference in measured temperature between sensor1 and sensor2 DIFFERENTIAL_VALUE_RANGE The high and low range limit values the engineering units code and the number of digits to the right of the decimal point to be used to display the DIFFERENTIAL_VALUE AVERAGE_VALUE A calculated process variable representing the average of temperature measured by sensor 1 and sensor 2 AVERAGE_VALUE_RANGE The high and low range limit values the engineering units code and the number of digits to the right of the decimal point to be used to display the AVERAGE_VALUE AVG_SENS_USED The sensor used in determining AVERAGE_VALUE Possible options are sensor 1 sensor 2 or Both REDUNDANT_VALUE A process variable which represents the temperature measu
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56. DE_BLOCK PERMITTED and does not change to AUTO mode Read MODE_BLOCK If necessary Set ACTUAL of Resource block MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Mode does not Configuration error BLOCK_ERR shows the Block change from OOS Configuration Error condition due to array configuration errors Value of output is Error in X or Y array See section 3 incorrect Block alarms are not Read FEATURE_SEL Reports are not selected in reported FEATURE_SEL If features do not include reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Page 120 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Resolving the block configuration errors Table 31 lists the parameters of all the blocks that can cause the status bit of Block Configuration Error to be set in their respective BLOCK_ERR parameters The following table provides the initial values and the valid range for the parameters Table 31 Resolving block configuration errors Parameter Initial Value Valid Range Corrective Action ALERT_KEY 0 non zero Initial Value is a configuration error Set value to non zero number SIMULATE 1 disabled 1 2 disabled Set value in valid range enabled XD_SCALE 0 to 100 E
57. DWARE_REV The hardware revision number of the communications module SOFTWARE_REV The software revision number of the communications module COMPATIBILITY_REV The compatibility revision number of the communications module MODEL_KEY The key number of STT850 temperature transmitter Example STT850 MOD_PART_1 First part of the Material of Construction Information MOD_PART_2 Second part of the Material of Construction Information MOD_PART_3 Third part of the Material of Construction Information MOD_PART_4 Fourth part of the Material of Construction Information HW_SIMULATE_JUMP ER STATE State of Hardware Simulation Jumper Enabled Disabled INSTALL_DATE The date and time when the device is installed in the field The date and time is directly acquired from the FF Host Page 26 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameter Description MAINTENANCE_MODE It indicates whether device is ready for maintenance Chk with Oper Check with operator to determine availability Avail for Maint The device is available for maintenance SERIAL_NO Serial number of the device COMM_SERIAL_NO Serial Number of the Communication Module Attributes Supported Modes The block supports the following modes e AUTO Automatic e OOS Out of Service Alarm Types The block supports standard block alarms see sectio
58. Honeywell FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide 34 TT 25 07 Revision 1 0 November 2014 Honeywell Process Solutions Copyrights Notices and Trademarks Copyright 2014 by Honeywell Inc Revision 1 November 2014 While this information is presented in good faith and believed to be accurate Honeywell disclaims the implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in its written agreement with and for its customers In no event is Honeywell liable to anyone for any indirect special or consequential damages The information and specifications in this document are subject to change without notice Honeywell PlantScape Experion PKS and TotalPlant are registered trademarks of Honeywell International Inc Other brand or product names are trademarks of their respective owners Honeywell Process Solutions 1250 W Sam Houston Pkwy S Houston TX 77042 Page ii FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 About This Document This guide provides the details of programming Honeywell STT850 SmartLine Temperature Transmitters for applications involving FOUNDATION Fieldbus protocol For installation wiring and maintenance information refer to the STT850 SmartLine Temperature Transmitter User Manual The configuration of your transmitter depends on the mode of operation and the options selected
59. I HI DV_HI DV_LO LO and LO_LO alarms applied to PV Status Standard in addition to the following things for the control selector Handling If Not selected is received at BKCAL_IN the PID algorithm must make necessary adjustments to prevent windup Page 76 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 10 Input Selector block The Input Selector block performs maximum minimum middle average and first good input selection The Input Selector block provides selection of up to four inputs and generates an output based on the selected type of input The block normally receives its inputs from AI blocks and provides a combination of parameter configuration options The block functions as a rotary position switch or a validated priority selection based on the use of the first good parameter and the disable_n parameter As a switch the block receives switching information from either the connected inputs or from an operator input The block supports signal status propagation The block is used to provide control input selection in the forward path only and hence no back calculation support is provided SELECTED indicates which input has been selected or the number of inputs selected by the algorithm The block does not support process alarms OUT DISABL_n AVG First Good SELECTED eo Figure 11 Input Selector Block Execution Input processing If DISABLE_n is True
60. In addition the AI block SIMULATE parameter must be set to the following values e SIMULATE STATUS Good alarm status constant suggested setting e SIMULATE SIMULATE_VALUE supplied by user Used as the input to the AI block e SIMULATE ENABLE_DISABLE Active Enabled Simulation mode truth table Table 37 shows the states of the simulation jumper and SIMULATE parameter shows how to activate the simulation mode Table 37 Simulation Mode Truth Table When the Simulation and the SIMULATE Enable_Disable is set to Jumper on Transducer board is set to Disabled Active OFF Position Simulation Disabled Simulation Disabled ON Position Simulation Disabled Simulation Active Setting Al or DI block mode To connect the AI or DI block input to the output the AI block must be in AUTO mode Page 130 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 6 6 Understanding write protection The hardware and software write lock features are controlled using the FEATURE_SEL parameter in the resource block The software write lock feature can be enabled only if the hardware write lock feature is disabled If the software write lock feature is enabled without disabling the hardware write lock feature then the software write lock feature gets disabled automatically The hardware write lock feature must be enabled before placing the hardware write lock jumper in the On position If t
61. Input block Table 29 Discrete Input block Problem Cause Things to check Recommended Action Discrete Input block mode is in OOS and does not change to AUTO mode Read MODE_BLOCK PERMITTED Add AUTO mode to MODE_BLOCK PERMITTED Read MODE_BLOCK ACTUAL of Resource block If necessary set MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Mode does not change from OOS Configuration error BLOCK_ERR shows the Block Configuration Error condition because no valid CHANNEL selection is made Value of output is incorrect Error in configuration Ensure that the right Channel is selected for the desired Limit Switch Also check if the Limit switch selected is correctly configured in the temperature transducer block Block alarms are not reported Read FEATURE_SEL Reports are not selected in FEATURE_SEL If features do not include reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 119 Troubleshooting the Signal Characterizer block Table 30 Signal Characterizer block Problem cause Things to check Recommended action Signal characterizer Read Add AUTO mode to block mode is in OOS MODE_BLOCK PERMITTED MO
62. LM The BLOCK_ALM is used for all configuration hardware and connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active sets the Active status in the Status attribute As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed EL_TEMP_DIAGNOSTIC Electronic Temperature Diagnostic parameters SENSOR_DIAGNOSTICS Sensor Diagnostics parameters POWER_TRAC Power Up Track Data OP_VOLTAGE Operating Voltage TIME_IN_SERVICE Summation of time in minutes that power has been applied to the device since leaving the factory SERVICE_LIFE It is the elapsed Service life of device in percentage STRESS_MONITOR It monitors various diagnostic parameters which are then input into an algorithm to calculate an estimated percent of time that the transmitter has spent in stressful conditions SENS_VOLT_DIAGNOSTICS Sensor Voltage Diagnostics SENS_GEN_DIAGNOSTICS Sensor General Diagnostics UPLOAD_TRACK_DATA Process Variable selection for uploading the Track data from sensor device HON_RES_1 Reserved for Honeywell use only HON_RES_2 Reserved for Honeywell use only The difference between Sensor Core Temperature and Cold Junction CJ_CT_DELTA Temperature SENSOR_DETAILED_STATUS
63. LO_2 The lowest calibrated value of sensor 2 CAL_MIN_SPAN_2 The minimum calibration span value allowed for sensor 2 This minimum span information is necessary to ensure that when calibration is done the two calibrated points are not too close together SENSOR_CAL_LOC_2 The location of the last sensor calibration of sensor 2 This describes the physical location at which the calibration was performed SENSOR_CAL_DATE_2 The date of the last sensor calibration of sensor 2 It shows the calibration of that part of the sensor that is usually wetted by the process SENSOR_CAL_WHO_2 The name of the person who did the last sensor calibration for sensor 2 SECONDARY_VALUE The secondary value that is related to the sensor PRIMARY_VALUE_1 The measured value and status available to the function block from sensor 1 PRIMARY_VALUE_TYPE_1 The type of measurement represented by the primary value PRIMARY_VALUE_RANGE_1 The high and low range limit values the engineering units code and the number of digits to the right of the decimal point to be used to display the final value CAL_UNIT_1 The Device Description engineering units code index for the calibration values for Sensor 1 SENSOR_TYPE_1 The type of sensor connected to input 1 of the transducer block SENSOR_RANGE_1 The high and low range limit values the engineering units code and the number of digits to the ri
64. Low cut off option in the IO_OPTS bit string If the option bit is set as True any calculated output below the low cut off value changes to zero This is only useful for zero based measurement devices such as flow The PV filter whose time constant is PV_FTIME is applied to the PV and not the FIELD_VAL Equations FIELD_VAL 100 channel value EU 0 EU 100 EU 0 XD_SCALE Direct PV channel value Indirect PV FIELD_VAL 100 EU 100 EU 0 EU 0 OUT_SCALE Ind Sqr Root PV sqrt FIELD_VAL 100 EU 100 EU 0 EU 0 OUT_SCALE Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 61 Page 62 XD_SCALE Range In the AI block XD_SCALE values are used when L_TYPE is set to Indirect which converts the signal to other units The high and low scale values of XD_SCALE EU_100 and EU_0 define the range over which the AI OUT shows the status as Good e When L_TYPE is set to either Indirect or Direct XD SCALE units must match the transducer units e When L_TYPE is set to Direct it is recommended that XD_SCALE and OUT_SCALE must contain the same values PV Value The AI block PV value is determined based on the selected transducer channel s PRIMARY_VALUE AI OUT AI in Manual Mode When the AI block is in manual mode OUT can be written as a fixed value between 10 and 110 of the OUT_SCALE range OUT values between 0 and 100 shows a status of Good OUT values outs
65. N A N A Not used in Honeywell Implementation FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Auto tuning Cycle tuning The PID block supports the Cycle tuning algorithm In Cycle tuning the tuning parameter values are derived from the process response to the resultant action of causing the PV to oscillate about a SP value The tuning method uses the measured ultimate gain and period to produce tuning parameter values by using the relationship developed by Ziegler Nichols equations Cycle tuning does not distinguish between process lags and always results in gain based on PV amplitude and calculates the values of Reset and Rate based on time of the SP crossings using a fixed ratio of 4 to 1 Initially this method does not require a stable process Cycle tuning is applicable to Three Position Step control and is used for integrating process Auto tuning procedure There are nine parameters applicable for auto tuning AT_TYPE TUNING_CRITERIA TUNE_REQ ATI AT_MODE AT_ERR AT_GAIN AT_RESET and AT_RATE AT_Type There are two types of selections namely Disable and Cycle Tune When Disable is selected AT_MODE becomes inactive When Cycle Tune is selected AT_ MODE becomes AT Ready TUNING_CRITERIA There are two types of tuning criteria available for selection Normal and Fast e NORMAL Conservative tuning designed to reduce overshoot as compared to FAST e FAST Aggressive tuning designed to provide quarter dam
66. Range 0 3 DECIMALS are present in all the eight screens DECIMALS_1 DECIMALS_2 DECIMALS_3 DECIMALS_4 DECIMALS_5 DECIMALS_6 DECIMALS_7 and DECIMALS _8 PV_LOLIM Display Low Limit Trend Bar Custom PV scaling usually equal to LRV The PV_LOLIM is present in all the eight screens PV_LOLIM_1 PV_LOLIM_2 PV_LOLIM_3 PV_LOLIM_4 PV_LOLIM_5 PV_LOLIM_6 PV_LOLIM_7 and PV_LOLIM_8 PV_HILIM Display High Limit Trend Bar Custom PV scaling usually equal to URV The PV_HILIM is present in all the eight screens PV_HILIM_1 PV_HILIM_2 PV_HILIM_3 PV_HILIM_4 PV_HILIM_5 PV_HILIM_6 PV_HILIM_7 and PV_HILIM_8 TREND_DURATION Duration of a trend screen in hours Its valid range is 1 999 The TREND_DURATION is present in all the eight screens TREND_DURATION_1 TREND _DURATION_ 2 TREND_DURATION_3 TREND _DURATION_4 TREND_DURATION_5 TREND DURATION _6 TREND_DURATION_7 and TREND_DURATION_8 Page 58 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameter Description DISPLAY_MESSAGE A message with a maximum of 64 characters that appears on the advanced display of the transmitter PREF_UNITS These Units are used in the displays to show Temperature related parameters in Menus such as LRL URL and MRV ROTATE_ENABLE Parameter to Enable or Disable screen rotation Attributes Supported Modes The block supports the following modes
67. SHED_RCAS Time duration at which to give up on computer writes to function block RCas locations Shed from RCas does not happen if SHED_RCAS 0 SHED_ROUT Time duration at which to give up on computer writes to function block ROut locations Shed from Rout does not happen if SHED_ROUT 0 FAULT_STATE Condition set by loss of communication to an output block fault promoted to an output block or a physical contact When Fault State condition is set output function blocks perform their FSTATE actions SET_FSTATE Allows the Fault State condition to be manually initiated by selecting Set CLR_FSTATE Writing a Clear to this parameter removes the device fault state if the field condition if any has cleared MAX_NOTIFY Maximum numbers of unconfirmed notify messages possible LIM_NOTIFY Maximum numbers of unconfirmed alert notify messages allowed CONFIRM_ TIME The time the resource waits for confirmation of receipt of a report before trying again Retry does not happen when CONFIRM_TIME 0 WRITE_LOCK If set no writes from anywhere are allowed except to clear WRITE_LOCK Block inputs continues to be updated Page 24 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameter Description UPDATE_EVT This alert is generated by any change to the static data BLOCK_ALM The BLOCK_ALM is used for configuration hardware and connection failure or
68. Scheduler A device which is responsible for keeping a link operational The LAS executes the link schedule circulates tokens distributes time messages and probes for new devices Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page vii Term Definition LRL1 LRL2 LRV Macrocycle mAdc Manufacturer s Signal Processing mV Network Management Network Management Agent Network Management Information Base Nm NPT NVM Object Dictionary Objects T TC Parameters PM Proportional Integral Derivative control PV PWA RFI RTD Stack Status Lower Range Limit of sensor 1 Lower Range Limit of sensor 2 Lower Range Value The least common multiple of all the loop times on a given link Milliamperes Direct Current A term used to describe signal processing in a device that is not defined by FF specifications Millivolts A part of the software and configuration data in a Foundation Fieldbus device that handles the management of the network Part of the device software that operates on network management objects A collection of objects and parameters comprising configuration performance and fault related information for the communication system of a device Newton Meters National Pipe Thread Non Volatile Memory Definitions and descriptions of network visible objects of a device There are various object dictionaries within a device The dictionaries contain objects and
69. T_HI_1 and at or above the low range value of SENSOR_RANGE_1 Similarly for Sensor 2 the value CAL_POINT_LO_2 must be at least CAL_MIN_SPAN_2 away from CAL_POINT_HI_2 and at or above the low range value of SENSOR_RANGE 2 CAL_MIN_SPAN_1 is the absolute minimum span between CAL_POINT_HI_1 and CAL_POINT_LO_1 Similarly CAL_MIN_SPAN_2 is the absolute minimum span between CAL_POINT_HI_ 2 and CAL_POINT_LO_2 CAL_VALUE_1 shows the PRIMARY_VALUE_1 in the units defined by CAL_UNIT_1 Similarly CAL_VALUE_2 shows the PRIMARY_VALUE_2 in the units defined by CAL_UNIT_2 CAL_UNIT_1 and CAL_UNIT_2 are the engineering units to be used when calibrating the respective sensors SENSOR_RANGE_1 and SENSOR_RANGE _2 are the high and low range limit values the engineering units code and the number of significant digits to the right of the decimal point of the respective sensors SENSOR_SN_1 and SENSOR_SN_2 show serial number of the respective sensors SENSOR _CAL_METHOD_1 and SENSOR_CAL_METHOD 2 are the last calibration methods of the respective sensors SENSOR CAL _LOC_1 and SENSOR _CAL_LOC 2 are the last calibration locations of the respective sensors SENSOR_CAL_DATE_1 and SENSOR _CAL_ DATE 2 are the last calibration dates of the respective sensors SENSOR_CAL_WHO_1 and SENSOR_CAL_WH0_22 identify the person that last calibrated the respective sensors Page 36 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Calibrati
70. The engineering unit code used to display the Electronics Temperature SENS_RESIS_1 The resistance of sensor 1 input Currently available only for RTDs SENS_RESIS_2 The resistance of sensor 2 input Currently available only for RTDs HARD_REV Hardware revision of the sensor board FIRM_REV Firmware revision of the sensor board CHAR_DATE Characterization date of the sensor board CAL_ACTION_1 Used by the calibration methods to initiate a calibration on a device CAL_ACTION_2 Used by the calibration methods to initiate a calibration on a device UPLOAD_CALIB_DATA Selection of appropriate calibration updates the current last and previous calibration dates performed on the device CAL_STATUS_1 The current status of the last performed calibration CAL_STATUS_2 The current status of the last performed calibration CURR_TIME_DATE Represents the date and time of the last performed calibration This parameter is to be used in conjunction with the Upload Cal History LAST_TIME_DATE Represents the date and time of calibration performed prior to the current calibration PREV_TIME_DATE Represents the date and time of calibration performed prior to the last calibration EXCESS_DELTA_LIMIT The temperature limit above which Excess Delta alert is asserted TEMP_DELTA_VALUE Absolute temperature difference between sensor 1 and sensor 2 LIM_SW_VAL_1 The discrete value and status o
71. U_100 gt EU O Set values to valid range s inches of UNITS_INDEX water matches output of transducer block OUT_SCALE 0 to 100 EU_ 100 gt EU_0 Set values to valid range inches of water CHANNEL 0 1 2 Initial Value is a configuration error Set value to valid range L_TYPE 0 1 2 3 direct indirect Initial Value is a configuration error Uninitialize sq root Set value to valid range PV_FTIME 0 0 200 Set value to valid range ALARM_HYS 0 5 0 50 Set value to valid range HI_HI_PRI 0 0 15 Set value to valid range HI_PRI LO_LO_PRI LO_PRI HI_HI_LIM INF INF or within Set value to valid range HI_LIM OUT_SCALE range LO_LIM INF INF or within Set value to valid range LO LO LIM OUT_SCALE range BYPASS 0 1 OFF 2 0N Initial value is a configuration error Set value in valid range SHED_OPT 0 1 8 see Shed Options Initial value is a configuration error in the FF specs Set value in valid range HI_HI_LIM INF PV_SCALE INF Values must be set in rank order For example LO_LIM gt HI_LIM ae LO_LO_LIM but lt HI_LIM etc LO_LIM INF PV_SCALE INF Values must be set in rank order LO_LO_LIM INF Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 121 Parameter Initial Value Valid Range Corrective Action OUT_HI_LIM 100 OUT_SCALE Verify that OUT_HI_LIM gt OUT LO LIM 0 10 OUT_LO LIM SP_HI_LIM 100 PV_SCALE Verify that SP_HI_LIM gt SP LO LIM 0 10 SP_LO_LIM
72. _DENY Options for controlling access of host computers and local control panels to operating tuning and alarm parameters of the block Not used by the device IN_1 The block input value and status IN_2 The block input value and status SWAP_2 Changes the algorithm in such a way that IN_2 corresponds to y and OUT 2 to x CURVE_X Curve input points The x points of the curve are defined by an array of 21 points CURVE_Y Curve input points The y points of the curve are defined by an array of 21 points UPDATE_EVT This alert is generated by any changes to the static data BLOCK _ALM The block alarm is used for all configuration hardware connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active sets the active status in the status parameter As soon as the Unreported status is cleared by the alert reporting task other block alerts may be reported without clearing the active status if the subcode has changed FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 89 Attributes Supported The block supports the following modes Modes e AUTO Automatic e MAN Manual e OOS Out of Service Alarm Types The block supports standard block alarms see section 3 2 Status OUT_1 shows the status of IN_1 and OUT_2 shows the status of Handling IN_2 The sub status is also passed to the outputs If one o
73. al error codes related to transducer blocks COLLECTION_DIRECTORY A directory that specifies the number starting indices and DD Item IDs of the data collections in each transducer block CAL_POINT_HI_1 The highest calibrated value of sensor 1 CAL_POINT_LO_1 The lowest calibrated value of sensor 1 CAL_MIN_SPAN_1 The minimum calibration span value allowed for sensor1 This minimum span information is necessary to ensure that when calibration is done the two calibrated points are not too close together Page 40 CAL_VALUE_1 PRIMARY_VALUE_1 shown in selected CAL_UNIT_1 to aid in calibration FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameter Description XD_OPTS Transducer options Two options are supported Input Status BAD in MAN and Input Status uncertain in MAN These are used to determine the status of PV when the actual mode of the block is MAN SENSOR_CAL_LOC_1 The location of the last sensor calibration of sensor 1 This describes the physical location at which the calibration was performed SENSOR_CAL_DATE_1 The date of the last sensor calibration of sensor 1 It shows the calibration of that part of the sensor that is usually wetted by the process SENSOR_CAL_WHO_1 The name of the person who did the last sensor calibration for sensor1 CAL_POINT_HI_2 The highest calibrated value of sensor 2 CAL_POINT_
74. alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 117 Troubleshooting the Output Splitter block Table 28 Output Splitter block Problem Cause Things to check Recommended Action Arithmetic block mode Read Add AUTO mode to is in OOS and does MODE_BLOCK PERMITTED MODE_BLOCK PERMITTED not change to AUTO mode Read MODE_BLOCK If necessary set ACTUAL of Resource block MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Mode does not Configuration error BLOCK_ERR shows the Block change from OOS Configuration Error condition This could be because The block IN_ARRAY is not configured correctly or LOCKVAL is not set to a valid value Value of output is Error in configuration Ensure that engineering units are incorrect correct for the computation Also check if IN_ ARRAY and OUT_ARRAY are configured correctly Block alarms are not Read FEATURE_SEL Reports are not selected in reported FEATURE_SEL If features do not include reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Page 118 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Troubleshooting the Discrete
75. and the enable disable bit XD_SCALE Elements used to display the value obtained from the transducer block The elements are e High and low scale values EU_100 and EU_0 e Engineering units to display the value UNITS_INDEX e Decimal places to display the value DECIMAL OUT_SCALE The high and low scale values engineering units code and number of digits to the right of the decimal point associated with OUT GRANT_DENY Normally the operator has permission to write to parameter values but Program or Local remove that permission and give it to the host controller or a local control panel IO_OPTS Allows the selection of input output options used to alter the PV Low cutoff enabled is the only selectable option STATUS_OPTS Helps select options for status handling and processing The supported status options for the Al block are Propagate Fault Forward Uncertain if Limited Bad if Limited and Uncertain if MAN mode Page 64 Revision 1 0 CHANNEL The CHANNEL value is used to select the measurement value Configure the CHANNEL parameter before configuring the XD_SCALE parameter FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Parameter Description Revision 1 0 L_TYPE The state Direct or Indirect values that are passed from the transducer block to the Al block When L_TYPE Direct the va
76. ans to show multiple status or error conditions A status message identifying the fault can be viewed by accessing the parameter Table 3 shows the bit mapping of the BLOCK_ERR parameter Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 123 Transmitter Diagnostics Transmitter faults are grouped into one of these three diagnostic categories and could cause the following results 1 Non Critical Fault Transmitter continues to calculate PV output 2 Critical Fault Transmitter drives PV output to failsafe state 3 Block Configuration Errors Incorrect parameter values causes the transmitter to generate a fault for example BLOCK_ERR or MODE_BLK OOS A description of each condition in each category is provided in Table 33 Table 34 and Table 35 The condition is described a probable cause is stated and a recommended corrective action is given for each fault Page 124 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Function Block Faults Checking the status and values of key block parameters helps in identifying the type of function block fault whether it is critical or non critical Table 33 helps in identifying the type of function block fault and provides corrective action to restore normal operation Table 33 Identifying Critical and Non critical Function block faults Block Parameter Value Fault Action
77. are not selected in FEATURE_SEL If features do not include reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Page 112 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Troubleshooting the LCD Transducer block Table 23 LCD Transducer block Problem Cause Things to check Recommended Action LCD Transducer block mode is in OOS and does not change to AUTO mode Read MODE_BLOCK PERMITTED Add AUTO mode to MODE_BLOCK PERMITTED Read MODE_BLOCK ACTUAL of Resource block If necessary Set MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Writing to display parameters fails Check for local display Either Basic or Advanced Display is required for LCD_TB to work If display is available remove and reconnect the local display and check if display powers up If display is not powering up contact Honeywell TAC Writing to some of display parameter in SCREEN_1 SCREEN_2 SCREEN_3 SCREEN_4 SCREEN_5 SCREEN _6 SCREEN 7 or SCREEN_8 fails Check DISPLAY_TYPE If it shows Basic display then parameters for which write fails are not supported by Basic display These parameters are supported only by Advanced display Local display shows Attention as title with some
78. ating outside its specified range or internal problems in the device or process characteristics Check Output signal temporarily invalid due to on going work on the device Function Failed Output signal invalid due to malfunction in the field device or its peripherals FAILED_ALARMS Failed alarms indicate a failure within a device that makes the device or some part of the device non operational This implies that the device needs repair and must be fixed immediately FAILED_MAPPED parameter contains a list of failures in the device which makes the device non operational that causes an alarm There are five parameters mapped by default with FATILED_MAPPED Sensor Board Fault input 1 Fault Input 2 Fault Communication Board Fault and Sensor Communication Fault FAILED_MASK parameter masks any of the failed conditions listed in FAILED_MAPPED A bit on means that the condition is masked out from alarming and is not reported FAILED_PRI parameter designates the alarming priority of FATLED_ALM The default is 0 FAILED_ACTIVE parameter displays the alarms that are active FAILED_ALM parameter indicates a failure within a device which makes the device non operational FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Page 20 MAINT_ALARMS A maintenance alarm indicates either the device or some part of the device needs maintenance If the condition is ignored the device eventually fails
79. ature based switches There are four limit switches Each limit switch has the following parameters LIM_SW_VAL The discrete value and status of the limit switches Off is represented by 0 and On by 1 LIM_SW_VAL of all the four switches are represented as LIM_SW_VAL_1 LIM_SW_VAL_2 LIM_SW_VAL_3 and LIM_SW_VAL_4 LIM_SW_PV_SRC The temperature value which is used as the source for the limit switches Following are the possible values that can be used as source for the limit switches Average Value Differential Value Primary Value 1 Primary Value 2 Redundant Value Secondary Value and Split Range Value The LIM_SW_PV_SRC for all the four limit switches are represented as LIM_SW_PV_SRC_1 LIM_SW_PV_SRC_2 LIM_SW_PV_SRC_3 and LIM_SW_PV_SRC_4 LIM_SW_SP The setpoint for limit switches The setpoint acts as the threshold for Limit Switch to switch to On Off The LIM_SW_SP for all the four limit switches are represented as LIM_SW_SP_1 LIM_SW_SP_2 LIM_SW_SP_3 and LIM_SW_SP_4 LIM_SW_DIR The direction of action for limit switches Two types of actions are possible HI_LIMIT and LO_LIMIT For HI_LIMIT the limit switch turns On when the PV source goes above the LIM_SW_SP For LO_LIMIT the limit switch turns On when the PV source goes below the LIM_SW_SP The LIM_SW_DIR for all the four limit switches are represented as LIM_SW_DIR_1 LIM_SW_DIR_2 LIM_SW_DIR_3 and LIM_SW_DIR 4 LIM_SW_HYST Hysteresis value applied for the corresponding
80. ay be used to set the time that the hardware must be in one state before it gets passed to the PV_D The PV_D is always the value that the block will place in OUT_D if the mode is Auto If Man is allowed someone may write a value to OUT_D The PV_D and the OUT_D always have identical scaling OUT_STATE provides scaling for PV_D Parameters List Table 19 Discrete Input block parameters Parameter Description ST_REV The revision level of the static data associated with the function block TAG_DESC The user description of the application of the block STRATEGY Used to identify grouping of blocks ALERT_KEY The identification number of the plant unit MODE_BLK The actual target permitted and normal modes of the block BLOCK_ERR Reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown PV_D Process variable of the Discrete Input block OUT_D Output variable of the Discrete Input block SIMULATE_D A group of data for Discrete Input block that contains the current transducer value and status the simulated transducer value and status and the enable disable bit XD_STATE Index to the text describing the states of a discrete for the value obtained from the transducer OUT_STATE Index to the text describing the states of a discrete output GRANT_DENY Options for controlling access of host com
81. ble Appropriate units need to be selected based on the configured parameter If desired units are not present custom may be selected The UNIT_TYPES is present in all the eight screens UNIT_TYPES_1 UNIT_TYPES_ 2 UNIT_TYPES_3 UNIT_TYPES_4 UNIT_TYPES_5 UNIT_TYPES_6 UNIT_TYPES_7 and UNIT_TYPES_ 8 CUSTOM_UNIT Character string to represent custom units This value is used when Unit type of custom is selected Size 8 Characters The CUSTOM_UNIT is present in all the eight screens CUSTOM_UNIT_1 CUSTOM_UNIT_2 CUSTOM_UNIT_3 CUSTOM_UNIT_4 CUSTOM_UNIT_5 CUSTOM_UNIT_6 CUSTOM_UNIT_7 and CUSTOM_UNIT_7 CUSTOM_TAG Tag to be displayed for the screen Length 14 Characters The CUSTOM_TAG is present in all the eight screens CUSTOM_TAG_1 CUSTOM_TAG_2 CUSTOM_TAG_3 CUSTOM_TAG_4 CUSTOM_TAG_5 CUSTOM_TAG_6 CUSTOM_TAG_7 and CUSTOM_TAG_8 DISPLAY_TEMPLATE Represents the display screen template Possible Values a PV PV value is displayed b PV and Trend PV value followed by a Trend is shown on the display c PV and Bargraph PV value followed by a Bargraph is shown on the display d None Screen will not be seen The DISPLAY_TEMPLATE is present in all the eight screens DISPLAY_TEMPLATE_1 DISPLAY_TEMPLATE_2 DISPLAY_TEMPLATE_3 DISPLAY_TEMPLATE_4 DISPLAY_TEMPLATE_5 DISPLAY_TEMPLATE_6 DISPLAY_TEMPLATE_7 and DISPLAY_TEMPLATE_8 DECIMALS Number of digits to display after the decimal point
82. check Recommended action PID block mode is in OOS mode and does not change to AUTO CAS RCAS and ROUT mode Read MODE_BLOCK PERMITTED Add AUTO CAS RCAS and ROUT modes to MODE_BLOCK PERMITTED Read MODE_BLOCK ACTUAL of Resource block If necessary Set MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Schedule Block is not scheduled and therefore cannot execute to go to Target Mode Schedule the block to execute PID block mode is in OOS mode with Block configuration Error Read parameters The default values of these parameters are configuration errors BYPASS and they must be set to a valid SHED_OP range See Table 31 Read Check that SP_HI_LIM lt SP_HI_LIM SP_LO_LIM OUT_HI_LIM OUT_LO_LIM SP_LO_LIM OUT_HI_LIM lt OUT_LO_LIM Mode does not change from IM target mode is MAN AUTO or Cas No path to process Assure that the downstream blocks to at least one AO are all in Cas mode and that the path ends in an AO block All BKCAL connections must be linked Mode does not change from MAN target mode is MAN AUTO or Cas Check Input blocks The status of IN is Bad not connected Mode does not go to Cas target mode is Cas Check Upstream block The upstream block cannot not able to complete cascade initialization for some reason Assure that BKCAL_OUT is connected to
83. chosen SENSOR_TYPE_1 and 2 Ensure that desired limits and units are assigned Transducer block shows incorrect Electronic Housing temperature value Check the Electronic Housing temperature units Ensure that proper unit is assigned to Electronic Housing temperature LRV calibration failed Check the Temperature applied Ensure that Temperature or corresponding voltage resistance input from calibrator applied as per the CAL_POINT_LO value entered URV calibration failed Check the Temperature applied Ensure that Temperature or corresponding voltage resistance input from calibrator is applied as per the CAL_POINT_HI value entered Block alarms are not reported Read FEATURE_SEL Reports are not selected in FEATURE_SEL If features do not include Reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Page 110 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Problem cause Things to check Recommended action Status for one of the Check Input Connections for If Break detect is Enabled wire PVs is shown as the corresponding PV breaks could cause this failure BAD Sensor Failure Check for Latched States If PV status does not return to Good after rectifying connection issues and validating with connection diagram check if latching is Enabl
84. cific PRIMARY_VALUE status Non Specific PRIMARY_VALUE status OUT status High or Low High or Low Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 63 Parameters List Table 12 Analog Input block parameters Parameter Description ST_REV The revision level of the static data associated with the function block The revision value is incremented each time a static parameter value in the block is changed TAG_DESC The user description of the application of the block STRATEGY It is used to identify grouping of blocks This data is not checked or processed by the block ALERT_KEY The identification number of the plant unit This information may be used in the host for sorting alarms and so on MODE_BLK The actual target permitted and normal modes of the block Target The mode to go to Actual The mode the block is currently in Permitted Allowed modes that target may take on Normal Most common mode for target BLOCK_ERR This parameter reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown PV The process variable used in block execution OUT The block output value and status SIMULATE A group of data that contains the current transducer value and status the simulated transducer value and status
85. cted A bit off means the corresponding alarm condition is disabled and is not detected FD_FAIL_MASK Mask of FAIL_ALM It corresponds to the bit of bit to FAIL_ACTIVE A bit on means that the condition is masked out from alarming FD_FAIL_ACTIVE Enumerated list of failure conditions within a device FD_FAIL_ALM Alarm indicating a failure within a device which makes the device non operational FD_MAINT_PRI Designates the alarming priority of the MAINT_ALM The valid range is 0 15 FD_MAINT_MAP Mapped MAINT_ALM alarm conditions and corresponds bit for bit to the MAINT_ACTIVE A bit on means that the corresponding alarm condition is Mapped and is not detected A bit off means the corresponding alarm condition is disabled and is not detected FD_MAINT_MASK Mask of MAINT_ALM It corresponds to the bit of bit to MAINT_ACTIVE A bit on means that the condition is masked out from alarming FD_MAINT_ACTIVE Enumerated list of maintenance conditions within a device FD_MAINT_ALM Alarm indicating the device needs maintenance soon If the condition is ignored the device eventually fails Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 25 Parameter Description FD_OFFSPEC_PRI Designates the alarming priority of the OFFSPEC_ALM The valid range is 0 15 FD_OFFSPEC_MAP Mapped OFFSPEC_ALM alarm conditions Corresponds bit for bit to
86. ctly according to the input that is connected Check sensor connections as per type connection diagram and also see that SENSOR_CONNECTION is set as per the wire count in case of RTDs In case of TCs check whether CJC_TYPE_PARAM and FIXED_CJ_VALUE are correctly set for appropriate cold junction compensation Transducer block does not produce valid Secondary value Check the Secondary value Range Ensure that Secondary Value Range has valid ranges and units assigned Check Cold junction parameters Check whether CJC_TYPE_PARAM and FIXED_CJ_VALUE are correctly set Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 109 Problem cause Things to check Recommended action Transducer block does not produce valid Secondary value Check the Secondary value Range Ensure that Secondary Value Range has valid ranges and units assigned Check Cold junction parameters Check whether CJC_TYPE_PARAM and FIXED_CJ_VALUE are correctly set Transducer block does not produce valid Differential Average Redundant Split Range Temperature value Check Transmitter model Calculated PVs are derived from both Sensor 1 and 2 and hence not available in single input models Check ENABLE_OPT The ENABLE_OPT corresponding to desired PV must be set for it to function Check the Range for the desired PV The ranges will default as per
87. d number of digits to the right of the decimal point associated with the feedforward value FF_VAL FF_GAIN The feedforward gain value FF_VAL is multiplied by FF_GAIN before it is added to the calculated control output UPDATE_EVT This alert is generated by any changes to the static data BLOCK_ALM The block alarm is used for all configuration hardware connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active sets the active status in the status parameter As soon as the Unreported status is cleared by the alert reporting task and other block alert may be reported without clearing the Active status if the subcode has changed ALARM_SUM The summary alarm is used for all process alarms in the block The cause of the alert is entered in the subcode field The first alert to become active sets the Active status in the Status parameter As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed ACK_OPTION Used to set auto acknowledgment of alarms ALARM_HYS The amount the alarm value must return to within the alarm limit before the associated active alarm condition clears HI_HI_PRI The priority of the HI HI Alarm HI_HI_LIM The setting for the alarm limit used to detect the HI HI alarm condition HI_PRI The priority of the HI alarm HI_LIM The s
88. defined by Honeywell This selection is defined in the PID_FORM parameter The output has three terms namely Proportional Integral and Derivative The output is adjusted by tuning constants There are three tuning constants in the ideal PID equation The robust PID uses four tuning constants 1 GAIN is the tuning constant of the Proportional term 2 RESET is the tuning constant of the Integral 3 RATE is the tuning constant of the Derivative RATE is usually modified by a lag which is set at some fixed ratio higher than the rate time to create a rate gain There is no lag with the rate in this implementation 4 OUT_LAG is the fourth tuning constant used in the robust PID it adds roll off to the output response The action is similar to PID with rate gain PID Ideal and PID Robust The ideal equation is a parallel or non interacting implementation of PID control using three tuning constants It automatically fixes OUT_LAG to 16 times the RATE time constant This produces response characteristics equivalent to the algorithms used in TPS products The robust equation is the same parallel implementation of ideal PID control but allows the engineer to set the OUT_LAG and effectively change the rate gain ALGO_TYPE is a configuration parameter that contains one of three selected algorithm types A B or C Where e A RATE GAIN and RESET all act on the error between setpoint and measured variable e B RATE acts on the measured
89. e FBAP provides the block related information in a much more organized way The FBAP defines blocks to represent different types of application functions In addition the blocks have a static revision parameter The revision level of the static data is associated with the function block To support tracking changes in static parameter attributes the associated block s static revision parameter is incremented each time a static parameter attribute value is changed In addition the associated block s static revision parameter is incremented if a static parameter attribute is written but the value is not changed The FBAP supports two types of alarms block alarms and process alarms A block alarm is generated whenever the BLOCK_ERR has an error bit set The types of block error for the AI block are shown in Table 3 The following alarms are supported by each function block Block Alarms Table 3 Bit mapping of the BLOCK_ERR Block_ERR Block Alarms Description Bit 0 Other Least significant bit LSB NOTE It is not supported by the transmitter 1 Block Configuration A feature in FEATURES SEL is set that is not error supported by features or an execution cycle in CYCLE_SEL is set that is not supported by CYCLE_TYPE 2 Link Configuration error If the link is not configured properly 3 Simulation Active The jumper or switch that enables simulation within the resource is ON The individual I O function blocks disable the s
90. e STT850 features standard fieldbus function blocks with manufacturer specific additions for enhanced operation The transmitter can function as a Link Active Scheduler LAS in a Fieldbus network It supports the following features e Link master capability e Supports the following standard function blocks apart from the Resource and Transducer blocks Analog Input block Input Selector block Signal Characterizer block PID with auto tune block Arithmetic block Output splitter Discrete input e Function block instantiation is supported by the following blocks Analog Input block PID with auto tune block Discrete Input Arithmetic block e Supports the following Transducer blocks Temperature Transducer block LCD Transducer block Diagnostic Transducer block e Supports class 3 type firmware download through commercial hosts DD and EDDL Features The STT850 supports DD and EDD file formats and the data is displayed using the EDDL features in the form of menus graphs charts and pictures Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 3 2 1 2 Getting started Verifying the installation Verifying transmitter installation tasks After the transmitter is installed and powered up you can verify communication between the transmitter and the field devices on the network Table 1 outlines the steps for identifying and checking the transmitter on a Fieldbus network Table
91. e Transmitter User s Guide Page v Symbol Definition Earth Ground Functional earth connection NOTE This connection shall be bonded to Protective Earth at the source of supply in accordance with national and local electrical code requirements Chassis Ground Identifies a connection to the chassis or frame of the equipment shall be bonded to Protective Earth at the source of supply in accordance with national and local electrical code requirements Page vi FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Terms and Acronyms Term Definition Alarm Analog Input function block Application AWG Block Configuration of a system or device Device Device Description Device Description Language Device Tag EEPROM EMI Event Field Device Foundation Fieldbus FTA Function Block Function Block Application Process The detection of a block leaving a particular state and when it returns back to that state One of the standard function blocks define by the Foundation Fieldbus A software program that interacts with blocks events and objects One application may interface with other applications or contain more than one application American Wire Gauge A logical software unit that makes up one named copy of a block and the associated parameters its block type specifies It can be a resource block transducer block or a function block A step in system de
92. ed If yes there may be a latched Bad state which needs to be cleared manually by running the Clear latch method Limit Switch is not Check limit switch Check that the Limit switch functioning correctly configuration source setpoint direction and units are set properly Most commonly it may be easier to set the units to be same as the PV source else the setpoint and hysteresis values need to be set as per the new units Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 111 Troubleshooting the Diagnostics Transducer block Table 22 Diagnostics Transducer block Problem cause Things to check Recommended action Diagnostic Transducer block mode is in OOS and does not change to AUTO mode Read MODE_BLOCK PERMITTED Add AUTO mode to MODE_BLOCK PERMITTED Read MODE_BLOCK ACTUAL of Resource block If necessary Set MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Sensor Diagnostics Sensor voltage diagnostics Electronic temperature diagnostics values are not updating Read UPLOAD_TRACK_DATA Select value other than NONE and then wait for 10 seconds If no values are updated for example if Max and Min still shows 999 in Sensor Diagnostics and Sensor voltage diagnostics Contact Honeywell TAC Block alarms are not reported Read FEATURE_SEL Reports
93. ed to an input that is not used and it points to an input that is Bad Check MIN_GOOD Make sure that value entered in MIN_GOOD is greater or equal to actual number of Good inputs Block alarms are not reported Read FEATURE_SEL Reports are not selected in FEATURE_SEL If features do not include Reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Page 116 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Troubleshooting the Arithmetic block Table 27 Arithmetic block Problem Cause Things to check Recommended Action Arithmetic block mode Read Add AUTO mode to is in OOS and does MODE_BLOCK PERMITTED MODE_BLOCK PERMITTED not change to AUTO mode Read MODE_BLOCK If necessary set ACTUAL of Resource block MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Mode does not Configuration error BLOCK_ERR shows the Block change from OOS Configuration Error condition since ARITH_TYPE is not set Value of output is Error in configuration Ensure that engineering units are incorrect correct for the computation If that fails see section 3 Block alarms are not Read FEATURE_SEL Reports are not selected in reported FEATURE_SEL If features do not include reports then the host must poll for
94. eeeeeeeeeeeeeeeaeeeeeeeeeeeeeneeaaes 87 Figure 16 Signal Characterizer Curve cccccceesessccceeeeeeeeeeeeesneeeeeeeeeeeneeees 88 Figure 17 Output Splitter BIOGK sear toan tis cet beeshanuddeaeciten hems ai seston eeaels 91 Figure 18 Output Splitter Schematic eee cece eee eeeeeeeeeeeeeeeeeeeeees 91 Figure 19 Split Range and Sequence Operation cccceeeeeeeeeeeeeeeeeeeeteee 92 Figure 20 OUT with LOCKVAL LOCK is dsiuctgeiceaertacrtuncinesinetereavninciecd ieee 93 Figure 21 OUT with LOCKVAL NO LOCK ccccceceeeeeeeteeeeeteeneeeeeenneeees 93 Figure 22 Discrete Input BlOCKs cid ce8cccseds ia coach dee tegcdivs paceavedii den toteeieiereina ee 96 Figure 23 Discrete Input Block Schematic Diagram ccesseeeeeeeeeeteee 96 Figure 24 Connecting the transmitter to the handheld cceeeeeeeee 100 Figure 25 Simulation Jumper Location on Communication Board 129 Page xiv FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 1 1 Page 1 1 Introduction About the STT850 FF Temperature Transmitter The newly designed Honeywell STT850 is a smart temperature transmitter that has a wide range of additional features along with supporting the FOUNDATION Fieldbus FF communication protocol The STT850 temperature transmitter with FF protocol provides a FOUNDATION Fieldbus interface to operate in a compatible distributed Fieldbus system
95. eees 4 Verifying transmitter installation tasks eececeeeeseeeeseneeeeeeeeeeseneeeeeeeaeeeresaeeseseaeeeeseneeereaes 4 2 2 Verifying communication with the transmitter cccsecceeseereeeeseeeeeeeeeees 5 Identify the transmiten nseni a ives Gente etiat reer el oie a 5 2 3 Establishing communication with host SyStemMs cs eccceseereeeeeeeeeeetees 6 Device Description DD icin eesst vee elt tai rch iin selene aed 6 Enhanced Device Description EDD 0 ec eeeseeeeeseeeeeeeneeeeeeeneeetenaeeeeeeneeeeeeeaeeesenaeeseneneeeeens 6 Device Type Manager DTM essceeesenseeeeeeneeeeenaeeeeeeneeeeeseaeeesenaeeeeeeeeeeeseaeeesenaeeeenenaeeeees 6 3 STT850 FF TEMPERATURE TRANSMITTER CONFIGURATION7 3 1 Importing the STT850 FF Device Description DD files 0 0 7 Importing the DD to Experion PKS 0 ceccceeeceeseeeeeeeeeneeeeeeeeeeeeseeeeeeeeseaeeeeeeseaeeeseteseaeeenatens 7 3 2 Device replacement ccceeeccceeeeeceeeeneneeeeeneeeeenneenseenseaneeenseeeeeenseeeeeenseeneeenees 12 3 3 Configuring the function block application Process cssscssseeeeeeees 13 About the Function Block Application Process FBAP ssccesssseeseseeeeeeeneeeeeeneeereneeeees 13 BlOCkK Alar MSi e tel ail et Re OTL eee eee 13 Process Alarms i c0 cee tel arn a Senior hone lee tdi ae ike 15 3 4 Resource DIOCK iriiria nET rE seqhctascauceces SesteececaMuedasats 17 Configuring the Resource bl
96. ees 77 EXECUTION iets ds A EEE ae elt et Eh ara ld 18s ied ae adel SER Me EA E 2th SRD A obs 77 Parameters LiSticacigiiscdaceedecde roskic idan a a eea Micuwuaressabasiadeeees 79 PANNAL 0 6 gt E AE ert ane A A RP i AA AE E A AEE AA ER A A A E 80 3 11 Arithmetic DIOCK aaraa aa iad shcs aca iiadvucenies ieena ct aca ctebdned aaveecaseusdendinstuaeands 81 EXOGUTIOMN R IEA A EN E E E E A E T A E T 81 AOE N 86 3 12 Signal Characterizer blOCK ccccssecceceseeeceeeseeeeeeeseeeeeeeseaeeeeeseaneeenesees 87 DELALO AMASE E EEPE E E E EE T 87 Par meter iSt aohia aa aae pia a tea a a ainbet iiia Naa 89 AUIIDULES 44534 hehe acces sities a aa a a bes a S 90 3 13 Output Splitter DIOCK ccesccesseeeeseeeseeeeeseeeeneeeeeeeeseseaeeneeeeeseeeessaesnseeneneeees 91 EEXECUTION sacdezcdecs hdeasicnetcccaualsccsncacatasadbadeastcace bases E NE sak senetobe dena neh E E 91 PAraMeten ISten inene a dea godin vavcuvvaseedeteedir guguadevgedanseegysvavied E sedis 94 AUIMIDULESixiscccecticuesvageacncdSesalestuteact ovsisevarcagen saad TN A E E A E 95 3 14 Discrete Input blockieren enenu aate daanan aaaea 96 Ee T AAKE L APA A P E OE AA E E AE E E Ne 96 Descriptio Ne aian a a a a dee aa a e a a a Aa 97 Parameters E E PERTE EE ETE T TE T 97 Attrib te Sne rs a e a A N ue EE A N 98 3 15 Configuring the transmitter using Field Device Manager system 98 4 STT850 FF TEMPERATURE TRANSMITTER OPERATION 99 4 1 Operational considerations
97. equencing application both the valves are closed at 0 input One of the valves opens proportionately to full as the input rises to 50 while the other stays shut The second valve opens as the input rises above 50 and the first valve may remain open or shut off quickly As this block is in the control path it has the ability to pass limit and cascade initialization information back to the upstream block Splitter Figure 17 Output Splitter Block Execution CAS IN BKCAL IN 1 BKCAL IN 2 Figure 18 Output Splitter Schematic The relationship of each output to the input may be defined by a line Each line may be defined by its endpoints Examples of graphical representations of OUT_1 and OUT_2 vs SP are shown below for a split range and a sequencing application Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 91 Split Range Sequencing Xn Yn n Yn Xu Yu Figure 19 Split Range and Sequence Operation The examples shown do not show the full range of possibilities The lines could overlap like an X or both start from the origin but have different slopes The endpoints do not have to lie within 0 100 Limits in the external blocks may affect the useful range of a line Units of percent are used in the examples because the common application of this block is to valves but any units may be used to suit the application The following parameters may be used to specify the
98. es The block supports standard block alarms see section 3 2 Additionally it supports standard HI_HI HI LO and LO_LO alarms applied to OUT Status Handling Uncertain EU Range Violation status is always set if the OUT value exceeds the OUT_SCALE range and no worse condition exists The following options from STATUS_OPTS apply where Limited refers to the sensor limits e Propagate Fault Forward If the status from the sensor is Bad Device failure or Bad Sensor failure propagate it to OUT without generating an alarm The use of these sub status in OUT is determined by this option Through this option the user may determine whether alarming sending of an alert is done by the block or propagated downstream for alarming e Uncertain if Limited Set the output status of the Analog Input block to uncertain if the measured or calculated value is limited e Bad if Limited Set the output status to Bad if the sensor is violating a high or low limit e Uncertain if MAN Mode Set the output status of the Analog Input block to uncertain if the actual mode of the block is MAN Page 66 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 9 Proportional Integral Derivative PID block with auto tune The PID block is the key to many control schemes and it is commonly used The PID function integrates the errors If there is difference in process time constants of a primary process and secondar
99. es Differential Temperature value e Enable Average Temperature Enables Average Temperature value e Enable Redundant Value PV2 is the input when PV1 becomes non functional e Enable Split Range Enables Split Range Temperature value e Average Enable Redundant mode In the Average Temperature mode when this bit is enabled and one of the PVs go bad the other good PV is the Average temperature value FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 e Split Range Hysteresis on Sensor 1 to 2 transition In Split Range Mode when this bit is enabled the output of the temperature block transits from PV1 to PV2 only when value of PV1 exceeds the sum of MRV and the predefined hysteresis value Similarly the output of the temperature block transits from PV2 to PV1 only when value of PV2 decreases below the difference between MRV and hysteresis e Redundant Switch to Sensor1 when Sensor 2 Bad If the Redundant value is enabled and is currently PV2 with this option enabled the Redundant value switches back to PV1 if PV2 goes bad and PV1 is good at that time A ATTENTION e When changing ENABLE_OPT either enable or disable only one option bit at a time and write it to the device Updating multiple options simultaneously in a single write is not currently supported e Note that the status and value of PV from the temperature block can also be viewed in Al block Limit Switch Limit switches are temper
100. etting for the alarm limit used to detect the HI alarm condition LO_PRI The priority of the LO alarm LO_LIM The setting for the alarm limit used to detect the LO alarm condition LO_LO_PRI The priority of the LO LO alarm LO_LO_LIM The setting for the alarm limit used to detect the LO LO alarm condition DV_HI_PRI The priority of the deviation high alarm DV_HI_LIM The setting for the alarm limit used to detect the deviation high alarm condition DV_LO_PRI The priority of the deviation low alarm DV_LO_LIM The setting for the alarm limit use to detect the deviation low alarm condition FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 74 Revision 1 0 Parameter Description HI_HI_ALM The HI HI alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm HI_ALM The HI alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm LO_ALM The LO alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm LO_LO_ALM The LO LO alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm DV_HI_ALM The DV HI alarm data which includes a value of the alarm a timestamp of occurrence and the state of the alarm DV_LO_ALM The DV LO alarm data which includes a value of the alarm a timestamp o
101. evice is below the minimum specification limit plus 10 of range for the range of 40 Deg C to 85 Deg C it is 40Deg C 12 5Deg C 27 5 Deg C and ET Under Range Date is the date and time when the electronic temperature last passed above the maximum specification limit less 10 of the range Sensor Detailed Status SENSOR_DETAILED_STATUS parameter indicates the various status bits set by the sensor Table 8 shows the various possible bits that could be set FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Table 8 Sensor Detailed Status Critical Status Non Critical Status 1 Non Critical Status 1 Input 1 Fault Sensor Over Temperature Sensor 1 Health Warning Input 2 Fault No Factory Calibration Input 2 Over Range Suspect Input Fault Input 1 Under Range Input 2 Under Range Characterization Calibration Table CRC Fault Input 1 Over Range Excess LRV 2 Correct NVM Fault Excessive LRV 1 Correct Excess Span 2 Correct RAM Fault Excess Span 1 Correct User Correct Active Flash CRC Fault CJ Out of Range CJ CT Delta Temp Warning Flow Control Fault Unused 1 Sensor 2 Health Warning Miscellaneous Status 1 Miscellaneous Status 2 Miscellaneous Status 3 Supply Volts Fault Break Detect Active Input 2 TB8 Open ADC 0 Range Fault Match PV Active Input 2 Open ADC 1 Range Fault Input 1 TB 6 Open Cha
102. f Limit Switch 1 Off is represented by 0 and On by 1 LIM_SW_PV_SRC_1 The temperature value which is used as the source for the Limit Switch 1 Possible values are Average Value Differential Value Primary Value 1 Primary Value 2 Redundant Value Secondary Value Split Range Value LIM_SW_SP_1 The setpoint for Limit Switch 1 The setpoint acts as the threshold for Limit Switch to switch to On Off FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Page 44 Parameter Description LIM_SW_DIR_1 The direction of action for Limit Switch1 Two types of actions are possible HI_LIMIT and LO_LIMIT In HI_LIMIT the limit switch turns On when the PV Source goes above the setpoint and for LO_LIMIT when it goes below the SET_POINT LIM_SW_HYST_1 Hysteresis value applied in Limit Switch 1 calculation LIM_SW_UNIT_1 The units for Limit Switch 1 parameters LIM_SW_SP_1 and LIM_SW_HYST_1 LIM_SW_VAL_2 The discrete value and status of Limit Switch 2 Off is represented by 0 and On by 1 LIM_SW_PV_SRC_2 The temperature value which is used as the source for the Limit Switch 2 Possible values are Average Value Differential Value Primary Value 1 Primary Value 2 Redundant Value Secondary Value Split Range Value LIM_SW_SP_2 The setpoint for Limit Switch 2 The setpoint acts as the threshold for Limit Switch to switch to On Off LIM_SW_DIR_2 The direction
103. f occurrence and the state of the alarm PID_FORM Configuration parameter specifies the IDEAL or ROBUST PID equation to be used e IDEAL PID default Non interactive form of a three mode control equation that provides Proportional Integral and Derivative control action Linear and non linear gain parameters are available e ROBUST PID The same as Ideal PID Additionally the equation supports a user configurable lag filter applied to calculated output value See OUT_LAG parameter Linear and non linear gain parameters are available ALGO_TYPE Configuration parameter specifies algorithm type which can be A B or C e Type A equation where Proportional Integral and Derivative act on ERROR e Type B equation where Proportional and Integral act on ERROR and Derivative acts on PV e Type C equation where Integral acts on ERROR and Proportional and Derivative act on PV OUT_LAG Time constant of single exponential LAG filter applied to the OUT parameter primary output Units in seconds For Ideal PID equation the lag filter is fixed at 1 16 and is not configurable GAIN_NLIN Dimensionless gain factor When the gain factor is multiplied by absolute value of the error and added to the linear GAIN the result is a gain response which is proportional to the deviation The default value is zero resulting in no response due to non linear gain action GAIN_COMP The composite gain q
104. f the curve limits is reached or the input is limited the appropriate limit must be indicated in the output sub status Limits shall be reversed if the curve slope is negative If SWAP_2 is set cascade initialization is controlled by the lower block When this block is in OOS mode the cascade to both the lower and upper blocks is broken by Bad status at the outputs When the block goes to AUTO mode the lower block can begin cascade initialization with status values that pass through this block to the upper block The output status signals from the upper block pass through this block to the lower block The block does not use STATUS_OPTS Page 90 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 13 Output Splitter block The output splitter block drives two control output signals from a single input signal Each output is a linear function of a fraction of the input signal The same linear function when used in reverse provides the back calculation support For different combinations of input and output conditions a decision table supports cascade initialization This block finds application in split ranging or sequencing of multiple valve In a typical split range application when the splitter input is 50 both the output valves remain closed One of the valves opens proportionately to full as the input drops to 0 and the other valve opens proportionately as the input rises above 50 In a typical s
105. factory The Last Power Up Cycle time is the date and time of the last power up Operating Voltage Track The statistics data for the supply voltage are tracked in the Operating voltage track Supply Voltage is the current value of the voltage at the device input terminals The status of the supply voltage whether it is normal or below operating value is indicated in the Status of Current Voltage parameter Minimum Voltage is the value of the least voltage experienced by the device at the input terminals in its life time Last Minimum Voltage Time is the date and time of the last minimum voltage experienced by the device The Minimum Voltage can be reset by using the Reset Minimum Voltage parameter FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameter List Table 9 Diagnostic Transducer block parameters Parameter Description ST_REV The revision level of the static data associated with the function block TAG_DESC The user description of the application of the block STRATEGY Used to identify grouping of blocks ALERT_KEY The identification number of the plant unit MODE_BLK The actual target permitted and normal modes of the block Reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple BLOCK_ERR errors may be shown UPDATE_EVT This alert is generated by any change to the static data BLOCK_A
106. for the Limit Switch 4 Possible values are Average Value Differential Value Primary Value 1 Primary Value 2 Redundant Value Secondary Value Split Range Value Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 45 Parameter Description LIM_SW_SP_4 The setpoint for Limit Switch 4 The setpoint acts as the threshold for Limit Switch to switch to On Off LIM_SW_DIR_4 The direction of action for Limit Switch 4 Two types of actions are possible HI_LIMIT and LO_LIMIT In HI_LIMIT the limit switch turns On when the PV Source goes above the setpoint and for LO_LIMIT when it goes below the SET_POINT LIM_SW_HYST_4 Hysteresis value applied in Limit Switch 4 calculation LIM_SW_UNIT_4 The units for Limit Switch 2 parameters LIM_SW_SP_2 and LIM_SW_HYST_4 HON_RES 3 Honeywell Reserved Parameter Attributes Supported Modes The block supports the following modes e AUTO Automatic e MAN Manual e OOS mode Out of Service Alarm Types The block supports standard block alarms see section 3 2 Page 46 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 6 Diagnostic Transducer block The Diagnostics Transducer block is used to monitor or track Process Variables PV of the device The block supports several types of diagnostics Process Variables Primary Value 1 Primary Value 2 Cold Junction
107. g the Proportional Integral Derivative PID DIOCK ee eeseeeeesteeeeeees 115 Troubleshooting the Input Selector block eeeceeceeeeeeeeeeeeeeeeteeeeseaeeseaeeseeeseaeeeeeeseneeeeaes 116 Troubleshooting the Arithmetic DIOCK 00 eee eeeseeeeeeneeeeeneeeeeeeeeeesneeesenaeeeeneeeeeeenaeeerenaeees 117 Troubleshooting the Output Splitter block eee eececeeeeeeeeeeeeeseeeeeeeeeeeeeeeeeseeeeeieeeeeeeeenaes 118 Troubleshooting the Discrete Input DIOCK eee eeeeeeeeeeeneeeeeeneeeeeeneeeeenaeeeeeeaeeeenenneeeseenees 119 Troubleshooting the Signal Characterizer DIOCK c ccesceeeseeeeeeeeeneeeeeeseeeseneeteeeseneeeeaes 120 Resolving the block Configuration errors cceseeeseeneeeeeneeeeeeeneeeeeesaeeeeeeaeeeesenaeeeeeeeeereaas 121 6 4 Device DidQmOStics cccesecccsseeeceesseeeeeeeseeeeeesseeeeeeeseeneeseseeneeseseeneesnseeseeens 123 STT850 FF temperature transmitter MEMOSY ceccceeeeeeeeeeeeeeeteneeeeeeeeeeeeeeeseeeeeeeeeeaees 123 Performing diagnostics in the background ec ceeeeseeeeeeneeeeeeneeeeeeeaeeetesaeeeerenaeeeeeeeeereaes 123 BLOCK_ERR Parameter aiene niaar aa Ea eer E E aieeao 123 Transmitter DiaQnOStics siii iaiiriiruncn nein euevscieed variana araa nena drana ara aK Eea davada daai Eak 124 Function Block Fa lts antaa tes dee de A a a a a geecetiaavieie 125 6 5 Understanding simulation MOdEC cccseseeesseeeeeeeseeeeenseeeeenseenenenseetenens 129 About simula
108. gement VCR to provide access to the SMIB Page 102 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Recommendations If firmware upgrade is required for a large number of STT850 devices the following are the guidelines 1 Diagnostics must be backed up before initiating the firmware update The communication board diagnostics are initialized to zero if backup is not performed before initiating the firmware update The backup diagnostics method is available in the Diagnostics transducer block Only one device firmware download is allowed in a given H1 Link Firmware download to multiple devices must happen one after another in the same link However parallel downloads can be performed to devices on different H1 links Download firmware to one device type at a time in a H1 link This reduces the chance for unknown interactions between devices to cause link issues or download failures Reduce usage of DTM through tools like FDM in the H1 link This reduces the traffic on the link and therefore reduces the time required for the download to complete Parallel Firmware downloads from single Control Builder Firmware downloads to a single FIM should be done from single Control Builder instance This reduces the chance of initiating multiple downloads to the same H1 link from different users FF segment design the choice of devices to connect to a FF segment must consider the maximum current draw of those devices
109. ght of the decimal point for sensor 1 SENSOR_SN_1 The serial number of sensor 1 SENSOR_CAL_METHOD_1 The method of last sensor calibration for sensor 1 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 41 Parameter Description SENSOR_CONNECTION_1 The wire count used in for sensor 1 Possible values are 2 Wire 3 Wire and 4 Wire This selection can be changed only for RTDs and is always 2 Wire in case of TC PRIMARY_VALUE_TYPE_2 The measured value and status available to the function block from sensor 2 PRIMARY_VALUE_2 The measured value and status available to the function block from sensor 2 PRIMARY_VALUE_RANGE_2 The high and low range limit values the engineering units code and the number of digits to the right of the decimal point to be used to display the final value CAL_VALUE_2 PRIMARY_VALUE_2 shown in selected CAL_UNIT_2 to aid in calibration CAL_UNIT_2 The Device Description engineering units code index for the calibration values for Sensor 1 SENSOR_TYPE_2 The type of sensor connected to input 2 of the transducer block SENSOR_RANGE_2 The high and low range limit values the engineering units code and the number of digits to the right of the decimal point for sensor 2 SENSOR_SN_2 The serial number of sensor 2 SENSOR_CAL_METHOD_2 The method of last sensor calibration for sensor 1
110. h specific event of the alarms is active FD_SIMULATE When simulation is enabled the Field Diagnostics conditions are taken from the Diagnostic Simulate Value or else the conditions are taken from Diagnostic Value and the RECOMMENDED_ACTION parameter displays the text as Simulation Active A ATTENTION Note that FD_SIMULATE can be enabled only if the simulation jumper is enabled in the device For more information refer section 6 5 Page 22 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 MAINTENANCE_MODE It indicates if the device is available for maintenance When the resource block is in AUTO mode MAINTENANCE_MODE parameter displays the text as Chk with Oper i e the device is in process and is not available for maintenance When the resource block is in OOS mode MAINTENANCE_MODE parameter displays the text as Avail for Maint i e the device is out of process and is available for maintenance The same text is displayed in the advanced display Chk with Oper Check with operator to determine availability Avail for Maint The device is available for maintenance SERIAL_NO The SERIAL_NO parameter shows the device serial number as obtained from the Sensor module COMM_SERIAL NO The COMM_SERIAL_NO parameter is the serial number of the Communication board Parameter List Table 6 Resource block parameters Parameter Description ST_REV T
111. hai Honeywell China Inc Phone 86 21 5257 4568 Fax 86 21 6237 2826 Singapore Honeywell Pte Ltd Phone 65 6580 3278 Fax 65 6445 3033 South Korea Honeywell Korea Co Ltd Phone 822 799 6114 Fax 822 792 9015 Specifications are subject to change without notice For more information To learn more about SmartLine Transmitters visit www honeywellprocess com Or contact your Honeywell Account Manager Process Solutions Honeywell 1250 W Sam Houston Pkwy S Houston TX 77042 Honeywell Control Systems Ltd Honeywell House Skimped Hill Lane Bracknell England RG12 1EB Shanghai City Centre 100 Jungi Road Honeywell Shanghai China 20061 34 TT 25 07 Rev 1 November 2014 www honeywellprocess com 2014 Honeywell International Inc
112. haracter appear directly before the ffd For example if the file contains the following header values Manufacturer ID 48574C Device Type 0006 Domain Name FD DOM Software Name FD_SW Software Revision 2 41 Then the file name would be 48574C0006_0006_FD DOM_FD SW_2 41 ffd A ATTENTION In the STT850 FF temperature transmitter only communication board firmware can be upgraded using the class 3 download Display and sensor boards firmware upgrade is not possible through FF link in the current release Page 104 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 6 STT850 FF Temperature Transmitter troubleshooting 6 1 Troubleshooting overview This section contains information to help you identify the faults in devices and the recommended actions to correct them Troubleshooting is performed to determine the cause of the fault by analyzing the device indications such as device not visible on network or not able to write values to parameters Device status and faults The transmitter constantly runs internal background diagnostics to monitor the functions and status of the device operations When errors and or faults are detected they are reported in the status bits of certain block parameters for example BLOCK_ERR The other parameters can be seen by viewing the status descriptions and or a value which may help to identify a fault
113. he Active status in the Status attribute When the Unreported status is cleared by the alert reporting task another block alert is reported without clearing the Active status if the subcode has changed Attributes Supported Modes The block supports the following modes e AUTO Automatic e IMAN Manual e OOS Out of Service e Cas Alarm Types Standard block alarm Status Handling Sub status values received at CAS_IN shall be passed to both outputs except for those used in the cascade handshake An IFS shall go to both outputs The status option IFS if Bad CAS_IN is available The splitter block shall propagate the BKCAL_IN status of Bad Device failure or Good Cascade Fault State Active or Local Override only if the statuses of both BKCAL_IN s contain a propagated fault status Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 95 3 14 Discrete Input block The Discrete Input DI function block processes a discrete input from a field device and makes it available to other function blocks You can configure inversion and alarm detection on the input value The Discrete Input block takes the transducer s input data from any one of the channels based on the channel parameters There are four channel parameters Limit Switch 1 Limit Switch 2 Limit Switch 3 and Limit Switch 4 The Discrete Input function block supports mode control signal status propagat
114. he following parameters PRIMARY_VALUE_RANGE_1 PRIMARY_VALUE_RANGE_2 and SECONDARY_VALUE_RANGE Set the Access Lock attribute value to Engineer if it is ViewOnly so in the Parameter Definition Editor PDE of Temperature Transducer Block TEMPTB can be accessed by double clicking the TEMPTB block under the newly importe template in Library View HONEY WELL STTS50FF_0101_1 TEMPTB Block Type iViewOnly From the Library Containment window drag and drop the device into the corresponding FF link on the Project Assignment window You are prompted to name the new function block If you want to change the name in the destination column type the new name or if you want to use the default name click Finish The device is added on the FF link on the Project Assignment window Right click the new device and then click Load The following WARNING appears Xxxx WARNING Xxxx Before proceeding with this operation please ensure that a checkpoint restore operation is not being performed by another user on this same hardware node Continue Click Continue FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 9 11 The following dialog box appears Load Dialog Ea Load List Partial Load Current State State To Load Post Load State NA NIA M STT8501 Not Loaded STT850_1 DIAGTB Vv Not Loaded 00S NORMAL X STT850_1 TEMPTB v Not Loaded 00S NORMAL v STT850_1 LCDTB Vv No
115. he hardware write lock feature is selected with the hardware jumper being enabled the selection is rejected See Figure 25 for jumper location For more information on write protection see Table 38 Table 38 Write Lock To Set the Jumper to Disable the Read and Write lock In this mode perform Read and Write operation OFF position on the Communication board Read amp Write E OFF ON Enable the Write lock In this mode read operation can be performed but the write operation is disabled ON position on the Communication board Read only CHE OFF ON Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 131 Sales and Service For application assistance current specifications pricing or name of the nearest Authorized Distributor contact one of the offices below ASIA PACIFIC EMEA AMERICAS Honeywell Process Solutions Honeywell Process Solutions Honeywell Process Solutions TAC hfs tac Phone 80012026455 or Phone TAC 1 800 423 9883 or support honeywell com 44 0 1344 656000 215 641 3610 Sales 1 800 343 0228 Australia Email Sales a e EE 46 1255 FP Sales Apps Honeywell com Email Sales FAX 61 7 3840 6481 or FP Sales Apps Honeywell com Toll Free 1300 36 39 36 TAC or Toll Free Fax hfs tac support honeywell com TAC 1300 36 04 70 hfs tac support honeywell com China PRC Shang
116. he revision level of the static data associated with the function block TAG_DESC The user description of the application of the block STRATEGY Used to identify grouping of blocks ALERT_KEY The identification number of the plant unit MODE_BLK The actual target permitted and normal modes of the block BLOCK_ERR Reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown RS_STATE Indicates the State of the function block application state machine TEST_RW Read write test parameter is used only for conformance testing DD_RESOURCE String identifying the tag of the resource which contains the Device Description for the resource MANUFAC_ID Manufacturer identification number is used by an interface device to locate the DD file for the resource DEV_TYPE Manufacturer model number associated with the resource It is used by interface devices to locate the DD file for the resource DEV_REV Manufacturer revision number associated with the resource It is used by an interface device to locate the DD file for the resource CAPABILITY_LEV The Capability Level of the Device DD_REV Revision of the DD associated with the resource It is used by the interface device to locate the DD file for the resource Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 23 Parameter
117. hown PV The process variable used in block execution SP It is the target block setpoint value It is the result of setpoint limiting and setpoint rate of change limiting OUT The block input value and status PV_SCALE The high and low scale values engineering units code and number of digits to the right of the decimal point associated with PV OUT_SCALE The high and low scale values engineering units code and number of digits to the right of the decimal point associated with OUT GRANT_DENY Options for controlling access of host computers and local control panels to operating tuning and alarm parameters of the block Not used by the device CONTROL_OPTS Specify control strategy options The supported control options for the PID block are Track enable Track in Manual SP PV Track in MAN SP PV Track in LO or IMAN Use PV for BKCAL_OUT Direct Acting SP Track retain SP PV Track Out Restrict SP to limits in CAS and RCAS No output limits in MAN STATUS_OPTS It helps to select options for status handling and processing The supported status option for the PID block is Target to Manual if Bad IN IFS if Bad IN IFS if Bad CAS_IN Use Uncertain as Good Target to next permitted mode if Bad CAS_IN Target to MAN if Bad TRK_IN_D and IFS if Bad TRK_IN_D IN The connection for the PV input from another block PV_FTIME The time constant of the first order PV filter It is the time required for a 63 percent
118. ication users should use RCAS mode with its corresponding setpoint value RCAS_IN RCAS_IN is updated only at the NV_CYCLE_T update rate and this mode supports full shedding functionality and PID initialization necessary for a robust application Mode Restricted Writes to Parameters Some block parameters have restrictions on having write access to them These are specified in the FF specifications Writing to certain function block parameters are restricted based on the block s Target and or Actual mode Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 99 4 2 Configuration of the transmitter using Handheld HH Figure 24 graphically represents the connection of the transmitter to the handheld Each transmitter includes a configuration database that stores its operating characteristics in a non volatile memory The handheld is used to establish and or change selected operating parameters in a Transmitter database The process of viewing and or changing database parameters is called configuration Configuration can be accomplished both online and offline with the Transmitter powered up and connected to the handheld The online configuration immediately changes the Transmitter operating parameters For offline configuration Transmitter operating characteristics are entered into the handheld memory for subsequent downloading to a Transmitter Fieldbus Power S TT850 FF Handheld FF Connection
119. ide Revision 1 0 A configuration error shall be set in BLOCK_ERR and the actual mode of the block shall go to Out of Service if the X values have any of the following conditions X21 lt X11 X12 lt X11 X22 lt X21 The parameter LOCKVAL provides an option to specify whether OUT_1 remains at its ending level when control is switched to OUT_2 or goes to Y11 If LOCK VAL is LOCK OUT_1 remains at its ending value when X is greater than X12 If LOCK VAL is NO LOCK then OUT_1 goes to Y11 when X is greater than X12 Some hysteresis in the switching point may be required because the output may change by a full stroke of the valve HYSTVAL contains the amount of hysteresis If X lt X12 HYSTVAL OUT_1 may be determined by the calculated y value If X12 HYSTVAL lt X lt X12 and X has not reached X12 since it was less than X12 HYSTVAL OUT_1 may be determined by the calculated y value If X transitioned from a value gt X12 to a value where X12 HYSTVAL lt X lt X12 then the value of OUT_1 is determined by the LOCKVAL setting If X12 lt X OUT_1 may be determined by the LOCKVAL setting In the following example LOCKVAL LOCK OUT_1 remains at end pomt when OUT_2 OUT_2 is non zero Figure 20 OUT with LOCKVAL LOCK In this example LOCK VAL NOLOCK OUT_1 goes to zero when OUT_2 becomes active Figure 21 OUT with LOCKVAL NO LOCK Revision 1 0 FOUNDATION Fieldbus STT850 Temperatu
120. ide the range shows a status of Uncertain The limit field is marked as Constant for all values PV shows the live temperature signal in manual mode AI in AUTO Mode L_TYPE determines whether the signal is taken directly from the transducer block and passed to the AI block output L_TYPE Direct or converted into different units before it is passed to the AI block output L_TYPE Indirect or Ind Sqr Root OUT_SCALE determines the units conversion of the signal presented to the output e When L_TYPE equals Direct OUT is the same as the value passed from the transducer block e When L_TYPE is Indirect the PRIMARY VALUE is converted to XD_ SCALE and that value is set equal to OUT FIELD_VAL The OUT in is re ranged to a value using the OUT_SCALE FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 OUT status The following table provides the resulting status of AI block OUT for a given status of PRIMARY_ VALUE in the transducer block If Then PRIMARY_VALUE status OUT value is tested against OUT_SCALE range values Good alarm status Not If OUT value is within the OUT_SCALE range then OUT status Limited Good Non Cascade alarm status Not Limited If OUT exceeds OUT_SCALE range then OUT status Uncertain Engineering Units Range Violation amp High or Low Limited PRIMARY_VALUE status OUT status Uncertain Uncertain 2 field in the OUT status Non Spe
121. iew sssssnsesnnnnennnnennnnnnnnnnnnnnnnnnnnnnnn nnmnnn nnmnnn mnnn 105 Device status and faults i cci cccceicicececsascedaeiascaneaacecapdeiesceseusancnsassassaaccsageapdesaseaacsaazsazesaarbacee 105 6 2 Troubleshooting the transmitter ccccssseceesseeeeeeeseeeeeeseeeeeeseenenenseetenens 106 Device not visible ON the NEtWOFK eeeeeeeeeeeeeeneeeeeeeneeetenaeeeeeeeeeeeeeaeeesesaeeeeseneeeeeeeeeeeeaes 106 Incorrect or non compatible tools ee eeeeeeeeeneeeeeeeeeeteneeeeeeeeeeeeeaeeetesaeeeesenaeeeeeeaeeerenaas 107 6 3 Troubleshooting DIOCKS cccsssecccsseeeeeesseeeeeeeseeeeeenseeneeeeseeneeenseeeeenseeeenens 108 Nonzfunctioning DIOCKS a2y scicesaasesccehaaangdeetaccdeethsceedesunedgesbedegashteeaddssaseazecphaadageshadegdsaunstces 108 Troubleshooting block Configuration errors ceeeseeeeeeeeeeseneeeeeeeneeetenaeeeeneeeeeeenneeerenaeees 108 Troubleshooting the Resource DIOCK eceeesceeeeesneeeteseeeeeeneeeeeeaeeesenaeeeeseeeeeeeeneeerenaeees 108 Troubleshooting the Temperature Transducer DIOCK cscceeeesseeeeesneeeeeeneeeeeeeneeerenaeees 109 Troubleshooting the Diagnostics Transducer DIOCK ccccccseeeceeeeeeeeeseeenneeeeeeeeeeeenaees 112 Troubleshooting the LCD Transducer DIOCK cccceesceeeeeeeeeeeeeeeeeeneeseaeeeeaeeseaeeseeeseeeeaes 113 Troubleshooting the Analog Input Al DIOCK 0 0 eeseceeeeseeeeeeneeeeeeeeesenaeeeeseneeeeeseneeerenaeees 114 Troubleshootin
122. imulation 4 Local Override The block output is being set to track the value of the track input parameter NOTE It is not supported by the transmitter 5 Device Fault State Set If the Device Fault State condition is True NOTE It is not supported by the transmitter 6 Device Needs A diagnostic algorithm has found a warning Maintenance Soon condition The NV memory is approaching the maximum number of reliable writes NOTE It is not supported by the transmitter Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 13 Block_ERR Block Alarms Description Bit 7 Input Failure When a sensor failure open thermocouple or sensor conversion not accurate 8 Output Failure Output Failure detected by this block back calculation input has a status of Bad or Device Failure NOTE It is not supported by the transmitter 9 Memory Failure A diagnostic algorithm has found a failure in memory includes all types and the device is still able to communicate that condition 10 Lost Static data If the object s static data is Bad then the object s database is set to its default values 11 Lost NV data The NV and static parameters are saved periodically This alarm occurs if new data was supposed to be saved to NV at the next NV write cycle but prevented the write due to power failure 12 Readback Check failed This indicates the readback of the actual cont
123. ing simulation mode About simulation mode jumper If the process is not running a simulation mode is available in the transmitter which aids in system debug When simulation mode is enabled the SIMULATE parameter in the AI and DI blocks provide a user selected value as the input to the AI or DI block Setting simulation jumper A hardware jumper on the Communication board is set to enable or disable the SIMULATE parameter See Figure 25 for jumper location Table 36 shows how to set the simulation jumper on the Communication board Simulation and Security Simulation and Write Lock OFF ON Simulation Enable Honeywell Unlocked oi abled Write Lock simulation Simulation Disable ie Revision 1 0 Figure 25 Simulation Jumper Location on Communication Board FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 129 Table 36 Setting the Simulation Jumper To Set the Jumper to Disable the SIMULATE parameter OFF position on the Communication Set transmitter for normal operation board Simulation Disable ort ON Enable the SIMULATE parameter ON position on the Communication For testing or debugging purposes board Simulation Enable OFF ON Enabling simulation mode The SIMULATE parameter in AI and DI blocks are enabled by setting the hardware simulation jumper to the ON position
124. ing units must match the units selected in the parameter XD_SCALE of the Analog Input block that reads the channel with this value Electronics housing temperature EL_TEMPERATURE is the value and status of the temperature of the Electronic housing The units can be changed as desired The engineering units must match the units selected in the parameter XD_SCALE of the Analog Input block that reads the channel with this value Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 29 Temperature Calculation The calculated values of Differential temperature Average temperature Redundant temperature and Split Range temperature are only available for dual input variants of the transmitter Differential Temperature The Differential temperature is the difference between PV1 and PV2 Dif ferential Temperature PV1 PV2 The status of the Differential temperature goes bad when either PV1 or PV2 goes bad The default Differential temperature ranges from LRL1 URL2 to URL1 LRL2 Average Temperature The Average temperature is the average of PV1 and PV2 PV1 PV2 2 When the Enable Average Temperature bit is disabled if either PV1 or PV2 goes bad the status of the Average temperature also goes bad With the Enable Average Temperature bit enabled if one of the PV goes bad then the Average temperature is the value of the other PV If both PV1 and PV2 go bad the status of the Average temperature goes bad
125. inuous valve or other actuator position in transducer units has failed 13 Device needs A diagnostic algorithm has found an invalid maintenance now condition but the device is still able to operate and communicate The NV memory has reached the maximum number of reliable writes NOTE It is not supported by the transmitter 14 Power up The resource is performing its first normal execution after power was applied to the device It is not an error but generates an alarm that says that normal operation was interrupted and is now being restored NOTE It is not supported by the transmitter 15 Out of Service The actual mode is OOS No control function blocks are being processed Page 14 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Process Alarms A set of alarms that indicates a process variable has exceeded a certain threshold Process Alarm detection is based on the OUT value The alarm limits can be configured for the following standard alarms High HI_LIM e High High HI_HI_LIM e Deviation High Limit DEV_HI_LIM e Deviation Low Limit DEV_LO_LIM e Low LO LIM e Low Low LO_LO_LIM When the value OUT oscillates ALARM_HYS is used to avoid alarm triggering The priority of each alarm is set by the following parameters e HI PRI e HI HI PRI e DV_HI PRI e DV_LO_PRI e LO PRI e LO_LO_PRI Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitte
126. ion and simulation The block is normally used in Automatic Auto mode In this mode the process variable PV_D is copied to the output OUT_D The block can also be changed to Manual Man mode to disconnect the field signal and substitute a manually entered value for OUT_D In this case PV_D continues to show the value that will become OUT_D when the mode is changed to Auto To support testing enable simulation When simulation is enabled you can supply the measurement value manually through the SMULATE_D parameter _ OUT_D OUT_D The discrete output value and status Figure 22 Discrete Input Block Schematic PV_D CHANNEL Simulate Optional Filter Ee D Invert PV_FTIME Output OUT_D FIELD_VAL_D Alarms i Figure 23 Discrete Input Block Schematic Diagram Page 96 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Description The FIELD_VAL_D shows the true on off state of the hardware using XD_STATE The Invert I O option can be used to do a Boolean NOT function between the field value and the output A discrete value of zero 0 will be considered to be a logical zero 0 and an non zero discrete value will be considered to be a logical 1 e g if invert is selected the logical NOT of a non zero field value would result in a zero 0 discrete output the logical NOT of a zero field value would result in a discrete output value of one 1 PV_FTIME m
127. k modes are used to control major states of the resource e The OOS mode stops all function block execution e The user selects the desired mode as the target Current mode of the block is shown as the Actual mode e The AUTO mode allows normal operation of the resource Configuring the Resource block The Resource block supports scalar input and discrete input as HARD_TYPES This parameter is a read only bit string that indicates the types of hardware that are available for this resource The RS_STATE parameter contains the operational state of the Function Block Application for the data containing that resource block RESTART The RESTART parameter allows degrees of initialization of the resource Restart Operation Run 1 The passive state of the parameter Restart resource 2 Discards unnecessary alarms and also discards the resource dynamic values Restart with defaults 3 Resets all configurable function block application objects to their initial value which is their value before any configuration is done Restart processor 4 Provides a way to press the reset button on the processor associated with the resource Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 17 Execution CYCLE TYPE The parameter CYCLE_TYPE is a bit string that defines the types of cycles that are available for the resource and supports scheduled and block execution
128. lues are passed directly from the transducer block to the Al block No units conversion When L_TYPE Indirect values from the transducer block are in different units and must be converted either linearly Indirect or in square root Ind Sqr Root using the range defined by the transducer and the OUT_SCALE range LOW_CUT If percentage value of transducer input fails below this PV 0 PV_FTIME The time constant of the first order PV filter It is the time required for a 63 change in the IN value FIELD_VAL The value and status from the transducer block or from the simulated input when simulation is enabled UPDATE_EVT This alert is generated by any change to the static data BLOCK_ALM The block alarm is used for all configuration hardware and connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active sets the Active status in the Status parameter As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed ALARM_SUM The summary alarm is used for all process alarms in the block The cause of the alert is entered in the subcode field The first alert to become active sets the Active status in the Status parameter As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active
129. n the Experion parameter check errors will appear Ignore the errors and continue the loading of control strategy Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 11 3 2 Device replacement Device replacement is a common plant operation where an old or defective device is replaced with a functional device However the new device that is used may not be from the same manufacturer or may not have the same device type and revision as the device being replaced The Honeywell Experion PKS DCS gives the user a simple and easy procedure to replace FF devices called Unlike Device Replacement This procedure can be used in situations like replacing a non Honeywell FF device with a Honeywell FF device like STT850 FF Temperature transmitter in the Experion system The Unlike device replacement report option in the control builder menu can be selected after clicking on the failed device in the monitoring On line side This report contains the steps to perform the device replacement procedure The user can refer to Knowledge Builder in Experion PKS for more detailed steps Page 12 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 3 Configuring the function block application process About the Function Block Application Process FBAP The transmitter has one resource block three transducer blocks and seven function blocks respectively The DD View feature supports all the blocks Th
130. n 3 2 and added to it a discrete alarm for write lock Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 27 3 5 Temperature Transducer block The Temperature Transducer block has all the parameters and functions required to measure and calculate the temperature The values that are measured and calculated by the transducer block are available as output values and are called as channels The measured values can be read cyclically from function blocks Two variants of STT850 Temperature transmitter are available Single input sensor and Dual input sensor The temperature process variables from the two sensor inputs are available as the two Primary Values of the temperature block In addition to the measured temperature values calculated and derived temperatures are also available as described in the following sections The temperature block has cold junction temperature parameters for compensation as well as for electronics housing temperature PRIMARY VALUE SECONDARYVALUE MEASUREMENT CALCULATED VALUE S20G CHANNEL BLOCK TRANSDUCER BLOCK DISCRETE MEASUREMENT LIMIT SWITCH ier CHANNEL DISCRETE ick Figure 3 Temperature Transducer Block Execution The primary measurement is represented by PRIMARY_VALUE_TYPE_1 and PRIMARY_VALUE_TYPE_2 parameters The block computes its output using primary sensor data and parameters The calculation is modeled as shown in Figure
131. n the PV or Sensor Core temperature last passed above the value of maximum specification limit less 10 of range Example for temperature ranging from 200 to 850 Deg C 850 Deg C 105 Deg C 745 Deg C Under Range Counter is the accumulation of minutes that device s PV or Sensor Core temperature has been below the value of minimum specification limit plus 10 of range Example for temperature ranging from 200 to 850 C 200Deg C 105Deg C 95 Deg C Under Range Date is the date and time when the PV or Sensor Core temperature temperature last passed below the value of minimum specification limit plus 10 of range Example for temperature ranging from 200 to 850 Deg C 200Deg C 105Deg C 95 Deg C The Sensor Voltage Diagnostics are also updated based on the selection in the Upload Track Data Max AVDD and Min AVDD are the maximum and minimum values of the VDD recorded by the sensor module in its life time and Max AVDD Time stamp and Min AVDD Time stamp are the corresponding time stamps at maximum and minimum values Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 47 Page 48 Sensor General Diagnostics Hi ATTENTION Note that the sensor stress monitor is different from the device stress monitor The stress monitor of the sensor depends on other parameters such as sensor core temperature Stress monitor It is the amount of time the device has been used under stressful conditi
132. nce Center A selected reference point at which a measurement is calibrated Upper Range Limit of sensor 1 Upper Range Limit of sensor 2 Upper Range Value Universal Station Volts Alternating Current Volts Direct Current A defined communication endpoint Fieldbus communications can primarily only take place along an active communications path that consists of two VCR endpoints A logical grouping of user layer functions Function blocks are grouped into a VFD and system and network management are grouped into a VFD For example to establish communications between a transducer block and a function block a VCR must be defined at the transducer block and a VCR must be defined at the function block Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page ix Contents COPYRIGHTS NOTICES AND TRADEMARKS eeeeeees ll fe INTRODUCTION sissasccesscsseccte case ceteancvaccecctecdctewedascdanedeionvoasiomvoaeses 1 1 1 About the STT850 FF Temperature Transmitter ccsecseseesseeeseeeeeeees 1 1 2 STT850 major assembly and electronic housing components 0 2 1 3 Features of the transmitter c secccsseeeeeesseeeeeenseeeeeenseeneeenseeeeeeeseeneeenseenenens 3 2 GETTING STARTED sissinisiecscesetesscesstececesetececeustevsdsusdsusssusdeuassdeace 4 2 1 Verifying the installation ccseecccesseeceeeeeeeeeeeeeeseeeseeeseeeseeseeeeneeseeeeeenseee
133. ng control option if set as True causes the output to increase when the PV exceeds the SP If set as False the output decreases when the PV exceeds the SP The Direct Acting control option must be set carefully as it can cause a difference between positive and negative feedback A ATTENTION The Direct Acting control option can never be changed while in AUTO mode The setting of the option must also be used in calculating the limit state for BKCAL_OUT Page 68 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 The output supports the feed forward algorithm The FF_VAL input brings in an external value which is proportional to some disturbance in the control loop The value is converted to percent of output span using the values of parameter FF_SCALE This value is multiplied by the FF_GAIN and added to the target output of the PID algorithm If the status of FF_VAL is Bad the last usable value is used as this prevents bumping the output When the status returns to Good the block adjusts its integral term to maintain the previous output The output supports the track algorithm The block provides an option to use either the SP value after limiting or the PV value for the BKCAL_OUT value PID Control block is an algorithm that produces an output signal in response to the measured variable and the setpoint The PID block allows you to choose either a standard PID control equation Ideal or a robust PID equation
134. nt to the device The DC current must be within the limits If the current is insufficient determine the cause and correct it More than two or less than two terminators are wired to fieldbus link Check to see that only two terminators are present on a link Correct if necessary Insufficient signal to the device Measure the peak to peak signal amplitude The output must be 0 75 to 1 0 Vp p Measure the signal on the and SIGNAL terminals and at a frequency of 31 25k Hz If the signal amplitude is insufficient determine the cause and correct it Names of parameters are not visible Missing or incorrect version of Device Description file on host computer Check the path to the Device Description Load correct version of DD Page 106 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Incorrect or non compatible tools If non compatible versions of fieldbus software tools are used such as Standard Dictionary or Device Description DD files or if you are using the incorrect revision level of device firmware then device objects or some block objects may not be visible or identified by name See the following table for the possible causes and recommended actions Symptoms Device and or block objects not identified Unknown Or Parameters are not visible or identified by name Or Honeywell defined parameters are not visible
135. ntered in the subcode field The first alert to become active sets the Active status in the Status parameter As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed Attributes Supported The block supports the following modes Modes e AUTO Automatic e MAN Manual e OOS Out of Service Alarm Types The block supports standard block alarms see section 3 2 Status During normal operations the value and status of the selected input Handling is shown by OUT If the number of inputs with Good status is fewer Page 80 than MIN_GOOD then the output status is Bad The SELECTED output status is Good NC until the block is out of service The block supports two status option e Uncertain as Good If the selected input status is Uncertain set the OUT status as Good e Uncertain if in Manual mode If the block is set to Manual mode the status of the Output is set to Uncertain FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 11 Arithmetic block The Arithmetic block is designed for using popular measurement math functions easily The math algorithm is selected by name and the type of function to be performed The block is used for calculating measurements from a combination of signals from the sensors The block must not be used in a control path The block does n
136. ock c ceeecceeeeeeeeeeeeneeeeeeeeaeeeeaeeeeaeeeeaeeseaeeseaeeseaeeeeaeeteeeeeeetias 17 RESTART E E E E E E A E E AE E spatne state dite 17 EXGCUUIOM sitesi cist onde a e a a a r r eet ee elceee 18 GY 0 BEARN S SEA E TE E A E E E E EE 18 MEMORY irern ee ev ieee es TE E ETENEE a EEEE N ev veya eer ee ie 18 MAX NOTIFY 23 vsteencttt atest acetic ie laid all leachate 18 FEATURES ict techs cues tet had starpa tin daa Mantes adaa ta Een Paa vente ande aa asa SENEE 18 ROPOMS A EEE A TEE A A A E AET 18 SOFT W LOCK and HARD W LOCK 20 ceccceeeceeeeeeeeeeeeeneeeeaeeeeaeeeeaeeteaeeseaeeseaeesnaeeseaeeeeeenias 19 Field DiagnoStiCS ennen e n E A E A A e eee ee 20 Parameter LiSts nA a e estes ip aa a aed daviveusanelenee thee aaa Naad Eaa aati 23 TAALLA OTOI SI AET E E EE A E E A E A 27 3 5 Temperature Transducer blOCK sssssnsesnunnennnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn nnmnnn nna 28 Exec tionms aroen a a a etek eile eel a a 28 Temperature Cal Ulat O a e a a E a a ae ae aa Ae Aa r Se NE ETEA E RERA Seet 30 Limit Switches caa e oee a E i a a E eh ee eerie 33 Calibration a E E EEEE E E S 35 LAO EAA T E E E EA E TE T A E A Aeioeeetle 39 Sensor Method Si siet Ba Me is Go i ee oe a Meee 39 Parameter Lists E EEE Gecinatidesas eck aieessiaeh stench ic tnidieeveaartenssacdeenseeede 40 AttriDUL S ieeseeiy ei ieviee a eee NE E EE os ieee ANERE EET os a ETENEE 46 Page x FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0
137. of action for Limit Switch2 Two types of actions are possible HI_LIMIT and LO_LIMIT In HI_LIMIT the limit switch turns On when the PV Source goes above the setpoint and for LO_LIMIT when it goes below the SET_POINT LIM_SW_HYST_2 Hysteresis value applied in Limit Switch 2 calculation LIM_SW_UNIT_2 The units for Limit Switch 2 parameters LIM_SW_SP_2 and LIM_SW_HYST_2 LIM_SW_VAL_3 The discrete value and status of Limit Switch 3 Off is represented by 0 and On by 1 LIM_SW_PV_SRC_3 The temperature value which is used as the source for the Limit Switch 3 Possible values are Average Value Differential Value Primary Value 1 Primary Value 2 Redundant Value Secondary Value Split Range Value LIM_SW_SP_3 The setpoint for Limit Switch 3 The setpoint acts as the threshold for Limit Switch to switch to On Off LIM_SW_DIR_3 The direction of action for Limit Switch 3 Two types of actions are possible HI_LIMIT and LO_LIMIT In HI_LIMIT the limit switch turns On when the PV Source goes above the setpoint and for LO_LIMIT when it goes below the SET_POINT LIM_SW_HYST_3 Hysteresis value applied in Limit Switch 3 calculation LIM_SW_UNIT_3 The units for Limit Switch 2 parameters LIM_SW_SP_2 and LIM_SW_HYST_3 LIM_SW_VAL_4 The discrete value and status of Limit Switch 4 Off is represented by 0 and On by 1 LIM_SW_PV_SRC_4 The temperature value which is used as the source
138. of the transmitters are as follows e Industry leading performance o Digital Accuracy up to 0 10 Deg C for RTD o Stability up to 0 01 of URL per year for ten years o 125 mSec update time for single input models o 250 mSec update time for dual input models e Reliable measurement o Built in Galvanic Isolation o Differential Averaging Redundant Split Range measurements o Dual Compartment Housing o Sensor Break detection o Comprehensive on board diagnostic capabilities e Lower Cost of Ownership o Universal input o Dual sensor option o Multiple local display capabilities o Modular construction FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 1 2 STT850 major assembly and electronic housing components The following illustrations depict the major assembly and electronic housing components Electronic Housing Approvals Electronic Nameplate cal Adaptor Figure 1 STT850 Major assemblies Figure 2 Electronic Housing components Page 2 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 1 3 Features of the transmitter The transmitter is a configurable intelligent field device that acts as a temperature sensor and is capable of performing control algorithms on process variables The core functionalities of the field device include e Process Variable PV measurement e Function Block Application Process FBAP e Device diagnostics Th
139. on Action To perform a Calibration Action CAL_ACTION_1 and CAL_ACTION_2 are selected for Sensors 1 and 2 respectively The value for these parameters can be set to any of the following e Prepare for Calibration e LRV Correct 1 e URV Correct 1 e Corrects Reset 1 e LRV Correct 2 e URV Correct 2 e Corrects Reset 2 Calibration Sequence The n at suffix of the parameter names can have the value 1 or 2 depending on the respective sensor To calibrate the sensors of STT850 perform the following steps 1 8 Select CAL_ACTION_n to prepare for calibration In case of Corrects Reset 1 and 2 skip Steps 2 to 4 Set CAL_UNIT_n to the desired calibration units Set CAL_POINT_LO_n or CAL_POINT_HI_n to the desired LO or HI calibration points In case of LRV correct set CAL_POINT_LO_n and in case of HRV correct set CAL_POINT_HI n Set the temperature input value to the value set in Step 3 using a precise source such as certified calibrator when CAL_VALUE_n shows the PV_n in CAL_UNITS_n units CAL_VALUE_n shows the measured value before calibration at this stage Update SENSOR_CAL_LOC_n SENSOR_CAL_DATE_n SENSOR_CAL_WHO_n to reflect the location date and User Identity for the current calibration Set CAL_ACTION_n to the desired calibration type Check CAL_STATUS_n to see the status of the calibration action performed Based on the input provided the status may be either of the following e SUCCESS In case of success
140. ons For example say temperature of the sensor The stress monitor is based on the temperature of the sensor The Stress monitor is calculated in percentage Time spent in stressful condition Stress monitor of sensor Timing service of the device Time in Service It is the amount of time the sensor is in operation and is shown in minutes Service Life Service life indicates the amount of service life that has been consumed by the sensor Service Life is dependent on the temperature of the sensor only The Service life is calculated in percentage Device Diagnostics Electronic Temperature Diagnostics Similar to the sensor diagnostics the Electronic Temperature Diagnostics are also tracked in 6 ways Max Electronic Temperature and Min Electronic Temperature are the maximum and minimum electronics temperatures recorded by the communication module electronics in its life time and Electronic Temperature Unit is the engineering unit currently under use which is set in the temperature transducer basic block ET Over Range CTR is the accumulation of minutes the device is above the maximum specification limit less 10 of range for the range of 40 Deg C to 85 Deg C it is 85Deg C 12 5Deg C 72 5 Deg C and ET Over Range Date is the date and time when the electronic temperature last passed above the maximum specification limit less 10 of the range The ET Under Range CTR is the accumulation of minutes the d
141. or zero temperature if the sensor indicates a value of 0 1 then it can be made zero by performing calibration Hence when zero temperature is measured next time it indicates exactly zero The following six types of sensor calibration actions can be performed on STT850 e For Sensor 1 o LRV Correct 1 o URV Correct 1 o Corrects Reset 1 e For Sensor 2 o LRV Correct 2 o URV Correct 2 o Corrects Reset 2 A ATTENTION Note that calibration is performed only for the primary variables Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 35 Calibration Parameters LRV Correct 1 and LRV Correct 2 are used to correct the Lower range values For LRV correct use CAL_POINT_LO_1 and CAL_POINT_LO_2 for the respective sensors URV Correct 1 and URV Correct 2 are used to correct the Upper range values For URV correct use CAL_POINT_HI_1 and CAL_POINT_ HI_2 for the respective sensors CAL_POINT_HI_1 and CAL_POINT_HI_2 are the upper calibrated values For Sensor 1 the value CAL_POINT_HI_1 must be at least CAL_MIN_SPAN_1 away from CAL_POINT_LO_1 and at or below the high range value of SENSOR_RANGE_ 1 Similarly for Sensor 2 the value CAL_POINT_HI_2 must be at least CAL_MIN_SPAN_2 away from CAL_POINT_LO_2 and at or below the high range value of SENSOR_RANGE 2 CAL_POINT_LO_1 and CAL_POINT_LO_2 are the lower calibrated values For Sensor 1 the value CAL_POINT_LO_1 must be at least CAL_MIN_SPAN_1 away from CAL_POIN
142. ot support process alarms The Arithmetic block supports the following functions Flow compensation linear Flow compensation square root Flow compensation approximate BTU flow Traditional Multiply Divide Average Traditional Summer Fourth order polynomial Simple HTG compensated level Fourth order Polynomial Based on PV n gt IN Lo gt N 1 gt AR OUT IN 2 gt IN 3 gt Figure 13 Arithmetic Block Execution The block has five inputs namely IN IN_LO IN_1 IN_2 and IN_3 The first two inputs IN IN_LO are designed for a range extension function that results in a Process Variable PV with the status indicating the input in use Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 81 RANGE_LO IN RANGE i OUT_HI LIM EXTENSION FUNCTION til OUT i OUT_LO LIM O COMP_LO_LIM GAIN INi BIAS_INi COMP_HI LIM Figure 14 Arithmetic Schematic Diagram The remaining three inputs IN_1 IN_2 and IN_3 are combined with the PV ina selection of four term math functions To ensure that the PV enters the equation with the right units the inputs used to form the PV must come from devices with the desired engineering units Each additional input has a bias constant and gain constant To correct Absolute Pressure use the bias constant and to normalize terms within a square root function use the gain constant Calculation of PV The
143. ource Block This is the serial number of the FF Transmitter which is obtained from the SERIAL_NO E Sensor module Check that the module has a valid serial number Resource Block This is the Software revision of the Communication board This may be checked when instructed by Honeywell TAC for troubleshooting SOFTWARE_REV Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 5 2 3 Establishing communication with host systems The transmitter establishes communication with the host systems using DD or DTM Device Description DD DD is a binary file that provides the definition for parameters in the FBAP of the transmitter For example DD refers to the function blocks that a transmitter contains and the corresponding parameters in the blocks that are critical to the interoperability of Fieldbus devices They define the data required to establish communications between different Fieldbus devices from multiple vendors with control system hosts The DD provides an extended description of each object in the Virtual Field Device VFD The Fieldbus Foundation provides the DD for all registered devices on its website www fieldbus org Enhanced Device Description EDD There are two types of EDDs are available namely ff5 sy5 and ffo sym The ffo sym binary files are generated for the legacy hosts to load the device DD that is generated using latest tokenizer Few constructs like Images
144. output splitter operation X11 Y11 X12 Y12 X21 Y21 X22 Y22 Where XnJ is the value of SP associated with OUT_n and Xn1 and Xn2 refer to the Ist and 2nd coordinates of the nth curve respectively YnJ is the value of OUT_n and Yn1 and Yn2 refer to the Ist and 2nd coordinates of the nth curve respectively IN_ARRAY OUT_ARRAY Index Coordinate Index Coordinate 1 X11 Start value of SP for the 1 Y11 Value of OUT_1 at X14 OUT_1 line X11 lt X12 2 X12 End value of SP for the 2 Yi2 Value of OUT_1 at Xi2 OUT_1 line X44 lt X12 3 X21 Start value of SP for the 3 Yo Value of OUT_2 at X21 OUT_1 line X21 lt X22 4 X22 Start value of SP for the 4 Yoo Value of OUT _2 at X22 OUT_1 line X21 lt X22 By specifying the coordinates as shown above the endpoints of the lines are defined The contents of the respective X s are held in the IN_ARRAY parameter and the contents of the respective Y s are held in the OUT_ARRAY parameter If a set of points are specified such are held in the IN_ARRAY parameter and the contents of the respective Y s are held in the OUT_ARRAY parameter If a set of points are specified such that a region of the input range is not specified then the corresponding OUT_n may be set to the closest endpoint of the input value either high or low when the specified region is exceeded Page 92 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Gu
145. pears in the display Execution Basic Display The PV value is user configurable This field has 8 characters The maximum allowable numeric value is 9999999 or 999999 If fractional decimals are configured the fractional positions are dropped as desired If the PV value exceeds the above limits it is divided by 1000 and K is appended to the result allowing a maximum value with multiplier of 999999K or 99999K This field is user configurable This field has 8 characters Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 53 Advanced Display Page 54 The Advanced Display provides three formats and describes the field in each of the three Advanced Display formats namely PV Bar Graph and PV Trend Essentially all three formats provide the same information but with the following differences e PV It is a user configurable display and it shows the configured PV e Bar Graph It is a user configurable 126 segment Bar Graph with range settings The Bar Graph displays the current value of the configured PV e PV Trend It is a user configurable display period from one hour to 24 hours The chart displays minimum maximum and average of the configured PV over the selected trend period The LCD Transducer block supports configuration of up to eight LCD screens on the Advanced and Basic displays By default the Display has a screen configured with default settings The Basic Display does not support
146. pened response TUNE_REQ TUNE_REQ can be turned ON only in the following modes namely AUTO CAS RCAS and ROUT The ATI value becomes 1 and AT_ERROR shows the status as Run this shows that auto tuning is in progress If AT_ERROR shows OK auto tuning is successful AT_GAIN AT_REST AT_RATE gets updated automatically and same values are copied to GAIN RESET and RATE respectively Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 71 Parameter list Table 14 PID block parameters Parameter Description ST_REV The revision level of the static data associated with the function block The revision value is incremented each time a static parameter value in the block is changed TAG_DESC The user description of the application of the block STRATEGY Used to identify grouping of blocks This data is not checked or processed by the block ALERT_KEY The identification number of the plant unit This information may be used in the host for sorting alarms etc MODE_BLK The actual target permitted and normal modes of the block Target The mode to go to Actual The mode the block is currently in Permitted Allowed modes that target may take on Normal Most common mode for target BLOCK_ERR This parameter reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be s
147. pressibility factor Z 3 Flow compensation approximate Both IN_2 and IN_3 would be connected to the same temperature func f X PV f t1 x t_2 x t_3 x t_3 x limited 4 BTU flow where IN_1 is inlet temperature and IN_2 the outlet temperature func f x PV f t_1 t_2 x limited 5 Traditional Multiply Divide func f x PV _ 1 aor f 2 t_3 x limited 6 Average PV t_1 t_2 t_3 func f number of inputs used in computation unusable inputs are not used 7 Traditional Summer func PV t_1 t_2 t_3 8 Fourth order polynomial All inputs except IN_LO not used are linked together func PV t1 t2 t_3 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 83 9 Simple HTG compensated level where PV is the tank base pressure IN_1 is the top pressure IN_2 is the density correction pressure and GAIN is the height of the density tap ee PV t_1 PV t_2 10 Fourth order polynomial based on PV func PV GAIN_IN_1 x PV GAIN_IN_2 x PV GAIN_IN_3 x PV After the value of func is calculated it is multiplied by GAIN and then BIAS is added to the result Then the high and low output limits are applied as per configured range scaling and PRE_OUT is updated with the calculated value If the mode is AUTO PRE_OUT is copied to OUT Parameter List Table 16 Arithmetic block
148. puters and local control panels to operating tuning and alarm parameters of the block Not used by the device IO_OPTS Allows the selection of input output options used to alter the PV Low cutoff enabled is the only selectable option STATUS_OPTS Helps select options for status handling and processing The supported status options for the DI block are Propagate Fault Forward and Uncertain if Man mode Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 97 Parameter Description CHANNEL The CHANNEL value is used to select the measurement value Configure the CHANNEL parameter before configuring the XD_SCALE parameter PV_FTIME Time constant of a single exponential filter for the PV in seconds FIELD_VAL_D Raw value of the field device discrete input with a status reflecting the Transducer condition UPDATE_EVT This alert is generated by any change to the static data BLOCK_ALM The BLOCK_ALM is used for configuration hardware and connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active sets the Active status in the Status attribute When the Unreported status is cleared by the alert reporting task another block alert is reported without clearing the Active status if the subcode has changed ALARM_SUM The current alert status unacknowledged states unreported sta
149. r User s Guide Page 15 The following is the order of priority for alarms Table 4 Priority for Alarms Priority Description 0 To disable the triggered alarm the priority of an alarm condition is changed to 0 1 Alarm condition with a priority 1 is reported to the system but not reported as an event and alarm 2 Alarm condition with priority of 2 is reported to the system and event but not reported as an alarm 3 7 Alarm conditions of priority 3 to 7 are reported as advisory alarms 8 15 Alarm conditions of priority 8 to 15 are reported as critical alarms A ATTENTION Process alarms are not supported by all blocks Page 16 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 4 Resource block The Resource block is used to describe characteristics of the Fieldbus device such as the device name manufacturer and serial number The block does not contain any input or output parameters The block contains data that is specific to the hardware associated with the resource The resource block monitors and controls the general operation of the device hardware For example if the resource block is in out of service mode it affects all the other blocks The ITK_VER parameter is used to identify the version of the Interoperability Tester The transmitter s Revision and Versions and Model Number can be obtained by executing the methods available in the resource block The bloc
150. r User s Guide Revision 1 0 By default Hysteresis is only applied on PV2 to PV1 transition It can also be enabled for PV1 to PV2 transition using Split Range Hysteresis on Sensor 1 to 2 transition in ENABLE_OPT The value of the Split Range temperature with Split Range Hysteresis on Sensor 1 to 2 transition option not enabled is as follows Split Range Temperature PV1 when PV1 lt MRV Hysteresis Split Range Temperature PV2 when PV1 gt MRV During transition of PV from PV1 to PV2 the value of the Split Range temperature remains PV1 for all values of PV1 such that MRV Hysteresis lt PV1 lt MRV During transition of PV from PV2 to PV1 the value of the Split Range temperature remains PV2 for all values of PV2 such that MRV Hysteresis lt PV2 lt MRV Transition from PV1 to PV2 MRV Hysteresis MRV Split Range temperature Transition from PV2 to PV1 MRV Hysteresis MRV Split Range temperature Figure 4 Transition of Split Range Temperature with Split Range Hysteresis on Sensor 1 to 2 transition option not enabled The Split Range temperature value with Split Range Hysteresis on Sensor 1 to 2 transition enabled is as follows Split Range Temperature PV1 when PV1 lt MRV Hysteresis Split Range Temperature PV2 when PV1 gt MRV Hysteresis During transition of PV from PV1 to PV2 the value of the Split Range temperature remains PV1 for all values of PV1 such that
151. racterization Table Fault ADC Reference Fault Input 1 Open Calibration Table Fault EE Update Active Latching Active Sensor in Production Mode EE Updates Blocked Unused 2 Reserved 1 Communication Request Board Message CRC Fault USES Reserved 2 Low Current Mode Unused 4 Reserved 3 Revision 1 0 Time in Service This is the amount of time the device is in operation and is displayed in minutes Service Life This is the average service life of the device under ideal conditions is 27 3 years But the service life varies depending on external factors such as temperature Service life indicates the amount of service life that has been used by the device Service Life is dependent on the temperature of the device only The Service life is calculated in percentage Stress monitor This is the amount of time the device has been used under stressful conditions For example say temperature of the device The stress monitor is based on the temperature of the device The Stress monitor is calculated in percentage Stress monitor Time in service of the device FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Amount of time the device was under stressful conditions Page 49 Page 50 Power Cycle Track The power cycle track gives diagnostics related to the power up information of the device The Power Cycles is the number of power ups experienced by the device after leaving
152. re Transmitter User s Guide Page 93 Parameter list Table 18 Output Splitter block parameters Parameter Description ST_REV The revision level of the static data associated with the function block TAG_DESC The user description of the application of the block STRATEGY Used to identify grouping of blocks ALERT_KEY The identification number of the plant unit MODE_BLK The actual target permitted and normal modes of the block BLOCK_ERR Reflects the error status of the hardware or software components associated with a block It is a bit string so that multiple errors may be shown SP It is the target block setpoint value It is the result of setpoint limiting and setpoint rate of change limiting OUT_1 The value and status of out_1 of the block OUT 2 The value and status of out_2 of the block OUT_1_ RANGE The maximum value range of out_1 of the block OUT_2 RANGE The maximum value range of out_1 of the block GRANT_DENY Options for controlling access of host computers and local control panels to operating tuning and alarm parameters of the block Not used by the device STATUS_OPTS Helps select options for status handling and processing The supported status options for the OS block are IFS if Bad CAS_IN and Target to next permitted mode if BAD CAS_IN CAS_IN The remote setpoint value from another block BKCAL_OUT The value and status req
153. red in a redundant setup with sensors 1 and 2 connected to the same process REDUNDANT_VALUE_RANGE The high and low range limit values the engineering units code and the number of digits to the right of the decimal point to be used to display the REDUNDANT_VALUE RED_SENS_USED The sensor used in determining REDUNDANT_VALUE Possible options are sensor 1 sensor 2 SPLIT_RANGE_TEMP_VALUE A process variable which represents the temperature measured in Split Range mode SPLIT_RANGE_TEMP_VALUE_R ANGE The high and low range limit values the engineering units code and the number of digits to the right of the decimal point to be used to display the SPLIT_RANGE_TEMP_VALUE SPL_RNG_SENS_USED The sensor used in determining SPLIT_RANGE_TEMP_VALUE Possible options are Sensor 1 Sensor 2 MRV_PARAM The Mid Range Value which determines the Sensor used in Split Range SPL_RNG_HYSTERESIS Hysteresis applied in deciding to switch the Sensor used in Split Range Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 43 Parameter Description BMPLSS_TRF_DAMPING For Redundant and Split Range PVs specifies the damping value that is applied when switching between sensors Range is from 0 to 99 9 sec EL_TEMPERATURE The value and status of the measured temperature inside the electronics housing EL_TEMP_UNIT
154. rrrent 113 Table 24 Analog Input block cicj ccccceeadeistecaricngeayieohnciesavianigedele leaks 114 Table 25 PID DIOCK oisin ener n AE a a a 115 Table 26 Input Selector lOCK ssssssnnenneneseeennrrnrrssserrnrrrnnnrssrrrnnrrnnnrsserr ent 116 Table 27 Arithmetic DlOGK iis caedas cist saa vead stated sa svinalsdas tiv aaa lala Seieeadaecachts 117 Table 28 Output Splitter DIOCK 2 2 0 0 eeeeecceceee cece eeeeeeeeaeeeeeeeeeeeeesnsnaaaeeeeeees 118 Table 29 Discrete Input DIOCK ccccceeeecceeeeee eee eeeeenesaaeeeeeeeeeeeeeeesaaeneeees 119 Table 30 Signal Characterizer block ssssssssssssesseesseesssessseseeseeees 120 Table 31 Resolving block Configuration errors cccceeeeeeeeeeeeeeeneeeeeeees 121 Table 822 DIAQNOStiCS ves aieeaa eee eaea aE nectar eden 123 Table 33 Identifying Critical and Non critical Function block faults 125 Table 34 Summary of Function blocks Non critical Faults 000000 127 Table 35 Summary of Function blocks Critical FaultS sssssseeeeeee 128 Table 36 Setting the Simulation JUMPer eee eeeeeeseeeeeeeeeeeeeetstneeeeeeeees 130 Table 37 Simulation Mode Truth Table sssesssssessesseeeeeeeeeseeeseeees 130 Table 38 Write LOCK ioscssc cess specter ccs Naniaivii dential O ER 131 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page xiii Figures Figure 1 STT
155. s STT850 Temperature Transmitter User s Guide Revision 1 0 Parameter list Table 17 Signal Characterizer block parameters Revision 1 0 Parameter Description ST_REV The revision level of the static data associated with the function block The revision value is incremented each time a static parameter value in the block is changed TAG_DESC The use description of the intended application of the block STRATEGY The strategy field can be used to identify grouping of blocks This data is not checked or processed by the block ALERT_KEY The identification number of the plant unit This information may be used in the host for sorting alarms etc MODE_BLK The actual target permitted ad normal modes of the block Target The mode to go to Actual The mode the block is currently in Permitted Allowed modes that target may take on Normal Most common mode for target BLOCK_ERR This parameter reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown OUT_1 The block output value and status OUT _2 The block output value and status X_RANGE The display scaling of the variable corresponding to the x axis for display It has no effect on the block Y_RANGE The display scaling of the variable corresponding to the y axis for display It has no effect on the block GRANT
156. sign selecting functional units assigning their locations and identifiers and defining their interconnections A physical entity capable of performing one or more specific functions Examples include transmitters actuators controllers operator interfaces Description of FBAPs within a device Files that describe the software objects in a device such as function blocks and parameters The DD binary are created by passing DD source files through a standard tool called a tokenizer A standardized programming language similar to C used to write device description source files The Physical Device Tag of the device as specified in the Foundation Fieldbus specifications Electrically Erasable Programmable Read Only Memory Electromagnetic Interference An instantaneous occurrence that is significant to scheduling block execution and to the operational event view of the application A fieldbus compatible device that contains and executes function blocks Communications protocol for a digital serial two way system which interconnects industrial field equipment such as sensors actuators and controllers Field Termination Assembly An executable software object that performs a specific task such as measurement or control with inputs and outputs that connect to other function blocks in a standard way The part of the device software that executes the blocks function transducer or resource blocks Hz Hertz Link Active
157. system problems in the block The cause of the alert is entered in the subcode field The first alert to become active sets the Active status in the Status attribute When the Unreported status is cleared by the alert reporting task another block alert is reported without clearing the Active status if the subcode has changed ALARM_SUM The current alert status unacknowledged states unreported states and disabled states of the alarms associated with the function block ACK_OPTION Selection of whether alarms associated with the block is automatically acknowledged WRITE_PRI Priority of the alarm generated by clearing the write lock WRITE_ALM This alert is generated if the write lock parameter is cleared ITK_VER Major revision number of the interoperability test case used in certifying this device as interoperable The format and range are controlled by the Fieldbus Foundation The current ITK version is 6 1 1 FD_VER A parameter equal to the value of the major version of the Field Diagnostics specification that the device is designed for FD_RECOMMEN_ACT Enumerated list of recommended actions displayed with a device alert FD_FAIL_PRI Designates the alarming priority of the FAIL_ALM The valid range is 0 15 FD_FAIL_MAP Mapped FAIL_ALM alarm conditions and corresponds bit for bit to the FAIL_ACTIVE A bit on means that the corresponding alarm condition is Mapped and it is dete
158. t or work data on the system being damaged or lost or may result in the inability to properly operate the process CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices CAUTION symbol on the equipment refers the user to the product manual for additional information The symbol appears next to required information in the manual WARNING Indicates a potentially hazardous situation which if not avoided could result in serious injury or death WARNING symbol on the equipment refers the user to the product manual for additional information The symbol appears next to required information in the manual WARNING Risk of electrical shock Potential shock hazard where HAZARDOUS LIVE voltages greater than 30 Vrms 42 4 Vpeak or 60 VDC may be accessible ESD HAZARD Danger of an electro static discharge to which equipment may be sensitive Observe precautions for handling electrostatic sensitive devices Protective Earth PE terminal Provided for connection of the protective earth green or green yellow supply system conductor Functional earth terminal Used for non safety purposes such as noise immunity improvement NOTE This connection shall be bonded to Protective Earth at the source of supply in accordance with national local electrical code requirements Revision 1 0 FOUNDATION Fieldbus STT850 Temperatur
159. t Loaded 00S NORMAL x STT850_1 RESOURCE Vv Not Loaded 00S NORMAL x J Automatically change ALL control elements to the state selected in Post Load State after load is completed Cancel Help Select the Automatically change ALL control elements to the state selected in Post Load State after load is completed checkbox and click OK 11 On the Monitoring Assignment window you can notice that device on the Project Assignment window has been loaded to the corresponding FF link 12 Right click the device and then click Activate gt gt Selected Item s and Content s The device is commissioned A ATTENTION Note that after importing the DD you have to create control strategies Page 10 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Conirol strategy A control strategy is an organized approach to define a specific process using detailed information to e create control modules in an associated controlled environment e configure function blocks to enable control applications and e runs in a control software infrastructure To build a control strategy a Control Module CM must be created where function blocks are inserted and connected with other function blocks Creating control strategy For information on creating control strategy refer to the corresponding DCS document A ATTENTION When control strategy is loaded by deselecting the partial download option i
160. teresis Reduce the value or increase limits Block alarm Check BLOCK_ERR for status bit See Table 3 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 127 Table 35 summarizes the conditions that could cause a critical fault in the transmitter along with recommended actions to correct the fault Table 35 Summary of Function blocks Critical Faults Problem Fault Probable Cause Recommended Action Al block is executing but status of output is Bad alarm status sensor failure One of the FAIL conditions in Field Diagnostics has got Set If the diagnostics is related to input being open check the connections as per the connections diagram If the failure still exists write 4 or restart processor to RESTART parameter of resource block If the failure persists and sensor related replace the sensor board if the If the failure persists and communication board related replace the communication board Al block is executing but status of output is Bad alarm status device failure Sensor board has stopped communicating with the communication board Write 4 or restart processor to RESTART parameter of resource block If failure is still present replace communication board FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 128 Revision 1 0 6 5 Understand
161. terizer block describes the input output relationship for any type of function The block has two paths each with an output that is a non linear function of the corresponding input The non linear function is configured based on a single look up table with 21 arbitrary x y pairs To use the block in a control or process signal path the status of an input is provided to the corresponding output To use the backward control path the block provides an option to swap the axes of the function OUT 1 OUT 2 CHARACTERIZER Figure 15 Signal Characterizer Block The block calculates OUT_1 from IN_1 and OUT_2 from IN_2 using a curve given by the co ordinates x1 y1 x2 y2 k21 y21 Where e xis the Input and e yis the Output The x coordinates are given in engineering units of X_RANGE The y coordinates are given in engineering units of Y_RANGE Execution Figure 15 describes the components of the block The output value is calculated by linear interpolation between two points enclosing the input value OUT_1 is associated to IN_1 and OUT_2 to IN_2 by the same curve but there is no association between IN_1 and IN_2 or between OUT_1 and OUT_2 Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 87 To derive the output value that corresponds to the input use the following formula y mx c Where e mis the slope of the line e cis the y intercept of the line output Ym Vi
162. tes and disabled states of the alarms associated with the function block ACK_OPTION Used to set AUTO acknowledgment of alarms DISC_PRI Priority of the discrete alarm DISC_LIM State of discrete input which will generate an alarm DISC_ALM The status and time stamp associated with the discrete alarm Attributes Supported Modes The block supports the following modes e AUTO Automatic e MAN Manual e OOS mode Out of Service Alarm Types Standard block alarm plus standard discrete alarm applied to OUT_D Status Handling The following options from STATUS_OPTS apply e Propagate Fault Forward e Uncertain if Man mode 3 15 Configuring the transmitter using Field Device Manager system The transmitter can be configured through Field Device Manager FDM by using DTM for releases R410 and R430 and using DD as well as DTM for release R440 For more information refer the FDM manuals EP FDM 11410 EP FDM 11430 and EP FDM 11440 for the corresponding releases Page 98 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 4 STT850 FF Temperature Transmitter operation 4 1 Operational considerations There are a number of considerations that must be noted when configuring a transmitter to operate in a fieldbus network LAS Capability The transmitter is capable of operating as the Link Active Scheduler LAS The LAS is a fieldbus feature which controls traffic on the ne
163. text Check the DISPLAY_MESSAGE parameters Transmitter messaging is activated to clear the message executed the Clear Message method For more information see section 3 6 Block alarms are not reported Read FEATURE_SEL Reports are not selected in FEATURE_SEL If features do not include Reports then the host must poll for alarms Read LIM_NOTIFY Set LIM_NOTIFY to a value higher than zero but not higher than MAX_NOTIFY Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 113 Troubleshooting the Analog Input Al block Table 24 Analog Input block Problem cause Things to check Recommended action Analog Input block mode is in OOS and does not change to AUTO mode Read MODE_BLOCK PERMIT TED Add AUTO mode to MODE_BLOCK PERMITTED Read MODE_BLOCK ACTUAL of Resource block If necessary Set MODE_BLOCK TARGET to AUTO NOTE If the mode is set to OOS for maintenance then do not change the mode to AUTO Read WRITE_LOCK parameter in resource block Check if device is in Write Protect mode Change Write Protect jumper to W position See section 6 6 Reset the device Cycle power to transmitter or write Processor to RESTART parameter If WRITE_LOCK in Resource block Locked 2 Schedule Block is not scheduled and therefore cannot execute to go to Target Mode Schedule the block to execute
164. that are supported in ff5 sy5 binaries are not supported in ffo sym binary files Device Type Manager DTM Page 6 DTM is similar to a device driver that enables usage of devices in all the asset management and device configuration software like FDM or PACTware with the help of the FDT DTM technology The DTM has the following primary functions e Provides a graphic user interface for device configuration e Provides device configuration calibration and management features for the particular device DTM provides functions for accessing device parameters configuring and operating the devices calibrating and diagnosing problems FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 3 STT850 FF Temperature Transmitter Configuration 3 1 Importing the STT850 FF Device Description DD files Importing the DD to Experion PKS A ATTENTION Experion release compatibility Experion Release DD Compatibility 430 1 Yes 410 4 Yes 400 4 Yes The steps in the following procedure are specific to Experion only Step Action 1 From the Control builder main screen click Fieldbus Device Description Import el OR Select File gt New gt Type gt Fieldbus Device 2 You can Import the DD using one of the following steps e Choose Browse LJ to locate the folder where you have stored the DD file e Select the required folder and click OK e Select the DD from the Device List
165. the manufacturer When this is detected by the device WRITE_LOCK is set to locked If hard write lock is enabled in FEATURE_SEL the configured value of soft write lock has no impact on device operation To deactivate write lock the jumper must be changed as FEATURE_SEL is not writeable during write lock Once the device detects the change in jumper position the write lock is disabled and WRITE_LOCK is set to 1 Install Date When the device is connected to the master host the time at which the device is powered up is taken as the install date It is a read only parameter Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 19 Field Diagnostics The Resource block acts as a coordinator for alarms There are four alarm parameters Fail alarm Offspec alarm Maintenance alarm and Check alarm It contains information of device errors that are detected by the transmitter Based on the error detected the device provides the recommended actions it is a read only parameter It displays the recommended action text for the reported alarms Table 5 Diagnostic Definitions Name Description Maintenance Although the output signal is valid the wear reserve is nearly exhausted or a function is soon restricted due to operational conditions For example build up of deposits Off Specification diagnostics indicate deviations from measured or set values due to internal Indicates if the device is oper
166. the middle value e IfSELECT_TYPE is Average it computes the average of the remaining inputs and transfers the value to the output of the block The value of SELECTED is the number of inputs used in the average Page 78 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameters List Table 15 Input Selector block parameters Parameter Description ST_REV The revision level of the static data associated with the function block The revision value increments each time a static parameter value in the block is changed TAG_DESC The user description of the application of the block STRATEGY Used to identify grouping of blocks This data is not checked or processed by the block ALERT_KEY The identification number of the plant unit This information may be used in the host for sorting alarms etc MODE_BLK The Actual Target Permitted and Normal modes of the block Target The mode to go to Actual The mode the block is currently in Permitted Allowed modes that target may take on Normal Most common mode for target BLOCK_ERR This parameter reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown OUT The block output value and status GRANT_DENY Options for controlling access of host computers and local control panels to operating tuning
167. the OFFSPEC_ACTIVE A bit on implies that the corresponding alarm condition is Mapped and detected A bit off means the corresponding alarm condition is disabled and is not detected FD_OFFSPEC_MASK Mask of OFFSPEC_ALM It corresponds to the bit of bit to OFFSPEC_ACTIVE A bit on implies that the condition is masked out from alarming FD_OFFSPEC_ACTIVE Enumerated list of offspec conditions within a device FD_OFFSPEC_ALM Alarm indicating offspec alarms These conditions do not have a direct impact on the process or device integrity FD_CHECK_PRI Designates the alarming priority of the CHECK_ALM The valid range is 0 15 FD_CHECK_MAP Mapped CHECK_ALM alarm conditions Corresponds bit for bit to the CHECK_ACTIVE A bit on means that the corresponding alarm condition is Mapped and is detected A bit off means the corresponding alarm condition is disabled and is not detected FD_CHECK_MASK Mask of CHECK_ALM It corresponds to the bit of bit to CHECK_ACTIVE A bit on means that the condition is masked out from alarming FD_CHECK_ACTIVE Enumerated list of check conditions within a device FD_CHECK_ALM Alarm indicating check alarms These conditions do not have a direct impact on the process or device integrity FD_SIMULATE When simulation is enabled the Field Diagnostics conditions are taken from Diagnostic Simulate Value or else the conditions are taken from Diagnostic Value HAR
168. tion mode jUMPel cceseececeeeeceeeeeeeeeseseneeseseeceeenseneeseseeeeseesesenesseneeeesenees 129 Setting SimulationijUMpPe hz eiee oie see hives ce e a a a e aa ae a aa iaa 129 Enabling Simulation MOdE cccceeeeseeeeeseeeeeeeneeeeeeeneeeeesaeeeeeeaeeeeseeaeeesesaeesesenaeeeeeeneeerseaas 130 Simulation mode truth table eceeeceeseeeeeeeeeneeeeeeseeeseeeeseaeeeeaeeseaeeseaeeeeeeseeeseneeseeeeeeaees 130 Setting Al or DI block MOC ee eeeeeceteeeeeeeteeeeeeeeseaeeeeaeeseaeeeeaeeseaeeeeaeeseaeeeeneeseeeeeneeeeaees 130 6 6 Understanding write protection cccssssecesseeeeeesseeeeeesseeeeeeeseetenenseetenees 131 Page xii FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Tables Table 1 Transmitter installation verification tasks ccccccccccccccecceecceeeeeeeeeeees 4 Table 2 Transmitter parameters onrtacsccstesssdviwtvvastadelrimictwdetsiveiramiterdateainl als 5 Table 3 Bit mapping of the BLOCK_ERR ssssseeseesseseeeeesseeeseeeeeeees 13 Table 4 Priority tor Alarms swccstcenierdaciunansaiviceunvuandaisanadviandaissaneaseiass 16 Table 5 Diagnostic Definitions seseeeeeeesseeseeeeeeeesseeseeeeeeeeeeeseeeees 20 Table 6 Resource block parameters cccceeeeeeeeeeeeeceeeeeeeeeeeseesaaeeeeeeees 23 Table 7 Temperature Transducer block parameters ccceceeeeeeeeeetteeeeeeeees 40 Table 8 Sensor Detailed Status
169. twork such as controlling token rotation and coordinating data publishing This fieldbus function is active in only one device at any given time on a network Devices which can be designated as the LAS may be an operator station or a field device The transmitter can be designated as LAS in the event of a failure of the primary LAS control in the field could continue A ATTENTION Note that the transmitter can be used only as backup LAS Special Non volatile parameters and NVM Wear out All function block parameters designated as Non Volatile N in the FF specifications are updated to non volatile memory NVM on a periodic basis NV_CYCLE_T parameter in the resource block specifies this update interval To provide predictable restart behavior in the transmitter the following Non Volatile parameters are updated to NVM each time they are written over the fieldbus e MODE TARGET for all blocks e SP VALUE for the PID block Since these are user written parameters these additional updates to NVM contribute negligibly to NVM wear out However users are cautioned to not construct control configurations where the above parameters are written continuously via a computer application for example or at rates greater than the NV_CYCLE_T interval This consideration helps to minimize the possibility of NVM wear out In the case of MODE this must not be a problem When users wish to provide set points to the PID block via a computer appl
170. uantity including both linear and non linear gain parameters It is a read only parameter ERROR_ABS Absolute value of the difference between PV and working setpoint Read only parameter WSP Working setpoint This is the setpoint value after absolute and rate limits have been applied Deviation alarms are computed on this value It is a read only parameter BLOCK_TEST Test parameter to determine if the block is functioning correctly Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 75 Parameter Description AT_TYPE Auto Tune Selection supports two types Disable Cycle Tune TUNING_CRITERIA Tuning Criteria supports two types Normal Fast TUNE_REQ Tuning Request performs auto tuning process ATI Auto Tune Indicator indicates Auto tune ON OFF AT_MODE Auto Tune Mode supports two options AT Ready Inactive e AT Ready indicates block is ready for auto tune e Inactive indicates auto tuning is disabled AT_ERROR Auto Tune Error supports the following errors Abort Not ready OK and Run AT_GAIN Auto tuned Gain AT_RESET Auto tuned Reset AT_RATE Auto tuned Rate Attributes Supported The block supports the following modes Modes e AUTO Automatic e MAN Manual e OOS Out of Service e IMan e Cas e RCas e ROut e LO Alarm Types The block supports standard block alarms see section 3 2 in addition to it standard HI_H
171. uired by the BKCAL_IN input of another block to prevent reset windup and to provide bump less transfer of closed loop control IN_ARRAY An array which contains the values of the input or X variables OUT_ARRAY An array which contains the values of the output or Y variables LOCKVAL Flag for holding the first output at current value when the other output is non zero BKCAL_IN_1 The analog input value and status from another block s BKCAL_OUT output that is used for backward output tracking for bump less transfer and to pass limit status Page 94 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Revision 1 0 Parameter Description BKCAL_IN_2 The analog input value and status from another block s BKCAL_OUT output that is used for backward output tracking for bump less transfer and to pass limit status BAL_TIME The specified time for the internal working value of bias to return to the operator set bias Also used to specify the time constant at which the integral term moves to obtain balance when the output is limited and the mode is AUTO CAS or RCAS HYSTVAL Specifies the Hysteresis value UPDATE_EVT This alert is generated by any change to the static data BLOCK_ALM The BLOCK_ALM is used for configuration hardware and connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active sets t
172. urned off BKCAL_OUT The value and status required by the BKCAL_IN input of another block to prevent reset windup and to provide bump less transfer of closed loop control RCAS_IN Target setpoint and status that is provided by a supervisory host Used when mode is RCAS ROUT_IN Target output and status that is provided by a supervisory host Used when mode is ROUT SHED_OPT Defines action to be taken on remote control device timeout RCAS_OUT Block setpoint and status after ramping filtering and limiting that are provided to a supervisory host for back calculation to allow action to be taken under limiting conditions or mode change Used when mode is RCAS ROUT_OUT Block output that is provided to a supervisory host for a back calculation to allow action to be taken under limiting conditions or mode change Used when mode is RCAS TRK_SCALE The high and low scale values engineering units code and number of digits to the right of the decimal point associated with the external tracking value TRK_VAL TRK_IN_D Discrete input that initiates external tracking FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 73 Parameter Description TRK_VAL The value after scaling from TRK_SCALE to OUT_SCALE APPLIED to OUT in LO mode FF_VAL The feedforward control input value and status FF_SCALE The high and low scale values engineering units code an
173. us STT850 Temperature Transmitter User s Guide Page 39 Parameter List Table 7 Temperature Transducer block parameters Parameter Description ST_REV The revision level of the static data associated with the function block TAG_DESC The user description of the application of the block STRATEGY Used to identify grouping of blocks ALERT_KEY The identification number of the plant unit MODE_BLK The actual target permitted and normal modes of the block BLOCK_ERR Reflects the error status associated with the hardware or software components associated with a block It is a bit string so that multiple errors may be shown UPDATE_EVT This alert is generated by any change to the static data BLOCK_ALM The BLOCK_ALM is used for all configuration hardware and connection failure or system problems in the block The cause of the alert is entered in the subcode field The first alert to become active sets the Active status in the Status attribute After the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed TRANSDUCER_DIRCTORY A directory that specifies the number and starting indices of the transducers in the transducer block TRANSDUCER_TYPE Identifies the transducer that follows TRASDUCER_TYPE_VER The version number of the transducer that follows XD_ERROR Provides addition
174. y process measurement then the block can be cascaded if required Auto tuning is a feature that tunes the PID constants as per the process automatically IN BKCAL_IN CAS_IN BKCAL_OUT RCAS_IN OUT ROUT_IN RCAS_OUT TRK_IN_D ROUT_OUT TRK_VAL FF_VAL Figure 9 PID Block BKCAL_OUT BKCAL_IN ROUT_IN ROUT_OUT CAS IN Feed Forward FF_SCALE OUT_HI_LIM RATE FF_GAIN OUT_LO_LIM OUT SP_HI_LIM RCAS_IN SPO LM Cd GAIN RESET ain e Status BKCAL_HYS i i Filter PV_FTIME 7 MODE Output Track senor TRK_SCALE i SHED_OPT TRK_IN_D TRK_VAL Figure 10 PID Block Schematic Diagram Revision 1 0 FOUNDATION Fieldbus STT850 Temperature Transmitter User s Guide Page 67 Execution The Process Variable to be controlled is connected to the IN input The value is passed through a filter and its time constant is PV_FTIME The value is then shown as the PV which is used in conjunction with the SP in the PID algorithm A PID does not integrate if the limit status of IN input is constant or if further control action based on the PID error proceeds IN input further towards its active status limit A full PV and DV alarm sub function is provided The PV has a status although it is a contained parameter This status is acopy of IN s status unless IN is Good and there is a PV or block alarm The full cascade SP sub function is used with rate and absolute limits The block has additional control options which cause the

FOUNDATION Fieldbus STT850 Temperature Transmitter User`s

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