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Logix 3400MD Digital Positioner User Instructions

1. Device Application Function Block Function Block 7 Block Parameters E Block Parameters Function Block Function Block 7 Block Parameters Block Parameters Fieldbus LAN gt Figure 1 5 Fieldbus Devices Contain Device Applications and Function Logix 3400MD Digital Positioner Interface Application The Logix 3400MD digital positioner contains the electronics interface compatible for connecting to a fieldbus network Logix 3400MD digital positioner application is configured using a fieldbus configuration software program The NI FBUS Configurator software allows the user to configure blocks change operating parameters and create linkages between blocks that make up the Logix 3400MD digital positioner applica tion The changes to the Logix 3400MD digital positioner application are then written to the device and initialized 2 Installation Overview 2 1 Introduction This section provides a list of components needed to install and operate the Logix 3400MD digital positioner Also provided is a list of typical start up tasks and places where the user can find detailed information about performing the tasks 2 2 Installation Components Components Needed for Installation The Logix 3400MD digital positioner contains electronics that enable it to operate using the FOUNDATION fieldbus This digital interface
2. Index Origin Name Store Date Type Default Value 0 STND RESOURCE BLOCK 2 SRW Record BLOCK 1 STND ST REV SR Simple UNSIGNED16 2 STND TAG DESC SRW Simple OGTET STRING 3 STND STRATEGY SRW Simple UNSIGNED16 0 4 STND ALERT KEY SRW Simple UNSIGNED8 0 5 STND MODE BLK SRW Record MODE 0x01 0x01 0x11 0x10 6 STND BLOCK ERR R Simple BIT STRING 0 7 STND RS STATE R Simple UNSIGNED8 4 8 STND TEST RW WR Record TEST 0 9 STND DD RESOURCE SR Simple VISIBLE STRING FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Index Origin Name Store Date Type Default Value 10 STND MANUFAC_ID SR Simple UNSIGNED32 RES_VAL_MANUFAC_ID 11 STND DEV TYPE SR Simple UNSIGNED16 RES VAL DEV TYPE 12 STND DEV REV SR Simple UNSIGNED8 RES VAL DEV REV 13 STND DD REV SR Simple UNSIGNED8 RES VAL DD REV 14 STND GRANT DENY NRW Record ACCESS PERM 0 15 STND HARD TYPES SR Simple BIT STRING RES VAL HARD TYPES 16 STND RESTART RWB Simple UNSIGNED8 1 17 STND FEATURES SR Simple BIT STRING RES VAL FEATURES 18 STND FEATURE SEL SRW Simple BIT STRING RES FEATURE SEL 19 STND GYGLE TYPE SR Simple BIT STRING 0x0001 20 STND GYGLE SEL SRW Simple BIT STRING 0x0000 21 STND MIN GYGLE T SR Simple UNSIGNE
3. 5 Write valid range values to parameter Unable to change resource block to auto mode 1 The second element of BLOCK TEST is not zero ne Resource block is in 005 mode 3 The second element of BLOCK TEST is non zero 4 A configuration error occurred in the block 1 Write all zeroes to the second element of the BLOCK TEST parameter 2 Write auto mode to MODE BLK TARGET of the resource block 3 Write all zeroes to the second element of the BLOCK TEST parameter 4 Find and correct any configurable parameter outside its valid range See Clearing Block Configuration Errors in Sub section 10 6 Unable to change analog output block from 005 mode 1 The block has not been configured to execute It is neither in the function block schedule in the system management information base nor is it linked to another executing block via the next block to execute field in the block record relative parameter index 2 Resource block is in 005 mode 3 Block configuration error 4 The second element of BLOCK TEST is not zero 1 Build and download an execution schedule for the block including links to and from AO block with other function blocks 2 Write auto mode to MODE BLK of resource block 3 a Check the parameters SHED and CHANNEL All values must be non zero b BLOCK ERR for bit 1 set If set check all configurable parameters for possible invalid values See Clearing Block Co
4. 00 000 0 5 188 100 5 10 376 200 10 15 564 3 00 15 2 740 400 A 25 843 524 25 3 900 647 30 35 920 802 35 93 Logix 3400MD Digital Positioner LGENIM3405 02 11 13 FLOWSERVE 94 N 40 934 957 40 45 942 86 45 50 948 14 15 50 55 95 5 1754 55 60 96 0 20 93 60 65 96 5 25 94 65 70 97 0 30 95 70 75 975 38 36 75 80 98 0 45 77 80 85 985 55 66 85 90 99 0 67 68 90 95 995 82 31 95 100 100 0 100 0 T00 NOTE Custom characterization points can only be entered with the FB configurator 100 90 80 70 60 50 40 30 20 10 FS CMD_USED 0 0 20 40 60 80 100 FINAL VALUE FS Quick Open Equal Percent Linear Figure 10 3 Logix 3400MD Digital Positioner Characteristic Curves 10 11 Stroke Characterization In addition to three pre defined and embedded characterization curves the Logix 3400MD positioner has a 21 point custom stroke characterization feature This allows the user to define a unique set of operating parameters customizable to his process conditions Table 10 15 Transducer Block Characterization Parameters Parameter MODE_BLK Description The operating mode of the transducer block Value Meaning Pe
5. Automax B175D Automax B200D Automax SNA250 Automax SNA300 Automax R205 Automax R206 Automax R207 Automax R208 Automax R310 Automax R312 Automax R314 Automax R316 Automax R414 Automax R416 Automax R418 Automax R420 Automax R422 Automax R514 Automax R516 Automax R518 Automax R520 Automax R522 Automax R524 NAF 02 NAF 11 NAF12 NAF 21 NAF 22 NAF 31 NAF 32 NAF 41 NAF 42 NAF 51 NAF 52 Valtek Diaphragm Linear 127 Valtek Diaphragm Linear 252 Valtek Diaphragm Linear 502 Valtek Diaphragm Linear 700 Valtek Diaphragm Linear 1502 Valtek Diaphragm Linear 3002 Fisher 657 30 Fisher 657 34 Fisher 657 40 Fisher 657 45 LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Parameter Bit or Byte Values Description AGT SIZE Fisher 657 46 Fisher 657 50 Fisher 657 60 Fisher 657 70 Fisher 657 80 Fisher 657 87 Fisher 657 100 Fisher 667 30 Fisher 667 34 Fisher 667 40 Fisher 667 45 Fisher 667 46 Fisher 667 50 Fisher 667 60 Fisher 667 70 Fisher 667 80 fisher 667 87 Fisher 667 100 Other SPRING TYPE USER INTERFACE INSTANT Bit 0 0x0001 Air Action ATO Enabled Bit 1 0x0002 Characterization Linear Bit 2 0x0004 Auto Tune Enabled Bit 3 0x0008 Low Friction Mode Bit 4 0x0010 Calibration Auto Bit 5 0x0020 DIP SW 6 Spare Bit 6 0x0040 Up Button Not Pressed Bit 7 0x0080 DN Button Not Pressed Bit 8 0x0100 Bit 1 of Gain Selector Bit 9 0x0200 Bit 2 of Gain Slele
6. 3400MD digital positioner 4 Call Flowserve s Valtek Control Product Technical Assistance See Technical Assistance on page 10 10 8 Simulation Mode Simulation Mode Dip Switch A simulation mode is available the positioner which is used to aid in system debug if the process is not running When simulation mode is enabled the SIMULATE parameter in the AO block provides a user selected value as the readback input to the AO block Setting Simulation Dip Switch CANN ATTENTION A hardware dip switch on the main PCB cover is set to enable or disable the S IMULATE parameter See Figure 10 1 for dip switch selection Table 10 10 shows how to set the simulation dip switch on the main PCB cover DIP Switch Block N E 8 Off On E ES FF Sim late Dip Switch Figure 10 1 Simulation DIP Switch Location on the PCB Cover 87 88 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee Table 10 10 Setting the Simulation Dip Switch Set the Dip Switch to Enable read and write access to the device s configuration Factory set Off position on the dip switch default Enable read only access to device s configuration Write protect On position on the dip switch Enabling Simulation Mode The SI
7. 35 MFG SPOOL CYCLES NR Simple UNSIGNED32 0 36 MFG TRAVEL RESET RW Simple BIT STRING 0 37 MFG SPOOL CYCLE PERCENT YELLOW NR Simple FLOATING POINT 0 38 MFG 5 001 TRAVEL HIGH START LIMIT RW Simple FLOATING POINT 0 39 MFG 5 001 TRAVEL HIGH END LIMIT RW Simple FLOATING POINT 0 40 MFG SPOOL TRAVEL PERCENT R Simple FLOATING POINT 0 41 MFG 5 001 TRAVEL PERCENT YELLOW NR Simple FLOATING POINT 0 42 MFG STATE RW Simple UNSIGNED8 1 43 MFG TREND INDEX RW Simple UNSIGNED8 0 44 MFG TREND_DATESTAMP R Array UNSIGNED8 0 0 0 0 0 0 45 MFG RESERVED 1 RW Simple FLOATING POINT 0 46 MFG RESERVED 2 RW Simple FLOATING POINT 0 47 MFG RESERVED 3 RW Simple FLOATING POINT 0 48 MFG RESERVED 4 RW Simple FLOATING POINT 0 49 MFG RESERVED 5 RW Simple FLOATING POINT 0 50 MFG SPOOL RESPONSE TIME NR Simple FLOATING POINT 0 51 MFG SPOOL START LIMIT NRW Simple FLOATING POINT 0 52 MFG SPOOL END LIMIT NRW Simple FLOATING POINT 0 53 MFG 5 001 PERCENT R Simple FLOATING POINT 0 54 MFG PNEUMATIC LEAK NR Simple FLOATING POINT 0 55 MFG LEAK START NRW Simple FLOATING POINT 0 56 MFG PNEUMATIC LEAK END NRW Simple FLOATING POINT 0 57 MFG PNEUMATIC LEAK PERCENT YELLOW NR Simple FLOATING POINT 0 58 MFG PRESSURE R Simple INTEGER16 0 59 MFG SPRING R Simple INTEGER16 0 60 MFG ACTUATOR R Simple INTEGER16 0 61 MFG DEVIATION TIMES EFFECTIVE GAIN R
8. Also see supervisory control application documentation Periodic Maintenance Section 9 Calibration Calibration Section 10 Troubleshooting Troubleshooting if problems arise Section 11 Software Maintenance Replacement if needed Section 9 Calibration 3 Bench Configuration Optional 3 1 Introduction The bench configuration is an optional procedure for checking your device This section provides a procedure for configuring the Logix 3400MD digital positioner This allows the user to load configuration information into the device before it is connected in a fieldbus network This enables the user to perform a bench check and configuration of the device before installation Calibration is also possible before the device is installed in the field Device Calibration A stroke calibration should be performed upon installation of the valve The actuator pressure calibration should be verified on all advanced and pro models Logix 341X MD and 342X MDdigital positioner Instructions for performing this calibration can be found in Section 10 3 20 Bench Check Configure Logix 3400MD Digital Positioner Before Installation Using the NI FBUS Configurator or other fieldbus device configuration application the user can perform an bench check of the Logix 3400MD digital posi tioner before it is mounted and connected to the process hardware and the fieldbus network By wiring the device to the fieldbus interface of a PC and using a f
9. Performs standard or robust proportional integral derivative algorithm used in closed loop PID Controller function block processing Resource AO Block PID Block Transducer Resource Logix Block Scaling Blogs Positioner Algorithm OUT 1 8 channel Circuitry Value BKCAL IN BKCAL OUT 7 Subscribe read write read write read write read write Communication Stack Figure 8 1 FBAP Block Diagram Example Block Descriptions Each block contains parameters that are standard Fieldbus Foundation defined parameters In other words the parameters are pre defined as part of the FF protocol for all fieldbus devices Additionally parameters exist which are defined by Flowserve and are specific to the Valtek Logix 3400MD digital positioner The following block descriptions list the predefined FF parameters included as part of the block as well as the Flowserve defined parameters A complete description for the FF parameters is provided in the Fieldbus Foundation document FF 891 Foundation Specification Function Block Application Process Part 2 The Flowserve parameter descriptions are included here as part of the block descriptions Block Parameter Column Descriptions Tables on the following pages list all of the block parameters contained in each of the block obj
10. SUPPLY PRESSURE LOW WARNING PORT 1 VALUE OUT OF RANGE PORT 2 VALUE OUT OF RANGE PORT 1 RANGE TOO SMALL PORT 2 RANGE TOO SMALL PNEUMATIC LEAK WARNING SPOOL STICKING WARNING SPOOL STICKING ALARN SPOOL CYCLES WARNING SPOOL TRAVEL WARNING HALL SENSOR UPPER POSITION HALL SENSRO LOWER POSITION FEEDBACK RANGE TOO SMALL POSITION OUT OF RANGE 0 POSITION OUT OF RANGE 100 NO MOTION TIME OUT NON SETTLE TIME OUT INNER LOOP OFFSET TIME OUT JOG CALIBRATE SET 100 POSITION PRESSURE SENSOR BOARD PRESENT PRESSURE CONTROL LOCKED REVERSED POT ROTATION REVERSED SPRING INSUFFICIENT SPRING NO SPRING Defined Bits XD MAIN BLOCK ERR NONE MAINT NOW MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON MAINT SOON BLINK CODE gt i caca a LED Blink 63 64 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee Pressure Alarms Pressure alarms are only available on models with advanced diagnostics Logix 3400MD digital positioner Advanced diagnostic models add top and bottom pr
11. These objects are defined in the function block application Alert objects contain e The value of the data e Block index a number e Alert key parameter e Time stamp e Priority Logix 3400MD Digital Positioner Alert Objects Three alert objects are defined in the Logix 3400MD digital positioner for event and alarm reporting e 1 for events e 1 for discrete alarms e 1 for analog alarms 8 17 Alarm and Event Reporting Fieldbus Alarms Events and Alert Objects Alarms are generated when block leaves or returns from particular state Events are instantaneous occurrences such as the change of parameter Alarms and event messages are communicated to operator interfaces and other devices using alert objects 61 62 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we Fieldbus Alarm Messages Alarm messages are usually transparent to the user A host system typically receives these messages and presents them to the user Acknowl edgment of alarms by the operator may be necessary to satisfy operation requirements Event Messages e Event messages contain a time stamp e Events also must be confirmed otherwise the block will continually report the event e Acknowledgment of events may be necessary to satisfy operation requirements Internal Positioner Alarms NOTE These are standard fieldbus alarms The Logix 3400MD digital positioner has several internal alarms which monitor
12. UNSIGNED16 0 2 SIND TAG DESC SRW Simple X OCTET STRING ii 3 SIND STRATEGY SRW Simple X UNSIGNED16 0 4 SIND ALERT KEY Simple X UNSIGNED8 0 5 SIND MODE SRW Record MODE 0 01 0 01 0 19 0 10 6 SIND BLOCK ERR R Simple STRING 0 7 SIND JOUT NRWO Record FLOAT S 0 1 0 0 8 SIND 00 RANGE SRW Record SCALE 100 0 0 0 0 0 9 SIND GRANT DENY RW Record ACCESS PERM 0 0 10 SIND STATUS OPTS STATUS IS SRW Simple STRING 0 11 STND N 1 RWI Record FLOAT S 0 08 0 0 12 SIND N 2 RWI Record FLOAT S 0 08 0 0 13 SIND N 3 RWI Record FLOAT S 0 08 0 0 14 SIND N 4 RWI Record FLOAT S 0x08 0 0 15 STND DISABLE 1 RWI Record DISC 5 0 08 0 16 STND DISABLE 2 RWI Record DISC S 0 08 0 17 STND DISABLE 3 RWI Record DISC S 0 08 0 18 STND DISABLE 4 RWI Record DISC S 0 08 0 19 STND TYPE SRW Simple X UNSIGNED8 0 20 SIND GOOD Simple X UNSIGNED8 0 21 STND SELEGTED RO Record DISC S 0 1 0 22 SIND 0P SELECT RWI Record DISC S 0 08 0 23 SIND UPDATE EVT RW Record ALARM EVENT 0 0 0 0 0 0 9 0 24 BLOGK ALM RW Record ALARM DISC 0 0 0 0 0 0 0 8 0 0 The functionality of these parameters follows the standard Fieldbus definitions as defined in the Foundation Fieldbus specifications 8 12 Output Splitter Function Block OS Block Description The output splitter block provides the capability to drive two control outputs from a single input Each output is a lin
13. i a PY m gt READBACK PV Convert gt READBACK RS Feature_Sel Out Readback On PERMITED SHED Targ to MAN on Bad IN Select SIMULATE TRANSDUCER SIMULATE ENABLE UPDATE EVT pee 2 n BLOCK ALM CHANNEL STATUS OPTS Transducer Block 1 Transducer Block 2 Transducer Block n Figure 8 3 AO Function Block Diagram Clearing Block Configuration Errors Block configuration errors prevent the block from leaving 005 mode The parameter BLOCK ERR will show whether a block configuration error is present Table 10 7 is a list of parameters that can cause the status of CONFIGURATION ERROR to be set in the AO BLOCK ERR parameter NOTE CONFIGURATION ERROR can only be cleared if the function block is being executed One way of determining block execution is by per forming a series two or three reads of the BLOCK TEST parameter and confirming that the first byte of the parameter is incrementing This will work if the execute rate is fast relative to the speed of reading BLOCK TEST A very slowly executing block may not appear to execute because block parameters are updated only when the block executes Mode restricted Write Operations Table 8 7 lists the AO block parameters whic
14. well ST3000 fieldbus transmitter for example a complete control loop can be configured Figure 1 2 shows a block diagram of the Logix 3400MD digital positioner digital positioner operating with other instrument LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 ST3000 FF Logix 3400MD DP Valve ERN Fieldbus Figure 1 2 Functional Block Diagram of Logix 3400MD Digital Positioner Operating with other Instruments Theory of Operation AN Spb Tubed ATO Control Inner Loop Sensor Algorithm Hall EDO utput F HALL_SENSOR Prax GAIN_UPPER podus Linear Mode s GAIN LOWER oltage AO Ly XD Characterization Control gt E Deviation Prin D A Output E p Inner Loop Soft Limits Command Grut Percentage Spool Control MPC CMD USED GAIN MULTI Stem Position Sensor Integration Summer Inner Loop Offset IL OFFSET Position Figure 1 3 Logix 3400MD Digital Positioner Block Diagram NOTE Variable names inFigure1 3 are reference names only and not accessible to the user They are for reference use only The Logix 3400MD digital positioner receives power from the two wire fieldbus input signal A digital signal sent via fieldbus is used as the command source value of 0 percent is always defined as the valve closed position and a value of 100 percent is alwa
15. 02 11 13 Nes Index Origin Name Store Date Type Default Value 8 STND 0011 RWO Record FLOAT S 0 1 0 0 9 ISTND 00 2 RWO Record FLOAT S 0 1 0 0 10 STND 00 1 RANGE SRW Record 100 0 0 0 0 0 11 STND 00 2 RANGE SRW Record SCALE 100 0 0 0 0 0 12 SIND GRANT DENY RW Record ACCESS PERM 00 13 ISTND STATUS OPTS STATUS 5 OS SRW Simple STRING 0 14 STND CAS IN RWI Record 5 0x08 0 0 15 STND BKGAL OUT RO Record 5 0 1 0 0 16 STND N ARRAY SRW Array FLOATING_POINT 0 0 50 0 51 0 100 0 17 STND 001 ARRAY SRW Array FLOATING POINT 0 0 50 0 51 0 100 0 18 STND LOCKVAL SRW Simple X UNSIGNED8 0 19 STND BKCAL_IN_1 RWI Record 5 0x08 0 0 20 STND BKCAL IN 2 RWI Record S 0x08 0 0 21 STND TIME SRW Simple FLOATING POINT 0 22 SIND HYSTVAL SRW Simple FLOATING POINT 0 23 SIND UPDATE EVT RW Record ALARM EVENT 0 0 0 0 0 0 9 0 24 STND BLOCK ALM RW Record ALARM DISC 0 0 0 0 0 0 0 8 0 0 8 13 Function Block PID Block Description The PID function block provides choice of selecting either standard PID control equation Ideal or robust PID Table 8 14 lists the block parameters and default values for the PID function block Table 8 14 PID Control Function Block Parameters Index Origin Name Size Date Type Default Value 0
16. 1 1 1 19 POSITIONER_MASKING NRW 1 1 1 20 DEVIATION_VALUE R 4 4 21 PRESSURE_SUPPLY R 4 4 4 22 PRESSURE_PORT_A R 4 4 4 23 PRESSURE_PORT_B R 4 4 4 24 TEST_MODE RW 1 1 25 CALIBRATE RW 1 1 1 26 CALIBRATION_STATUS R 1 1 1 27 MAIN RESERVED 1 NRW 4 4 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 28 P GAIN SRW 4 4 29 I GAIN SRW 2 2 30 D GAIN SRW 2 2 31 PRESS CTRL GAIN SRW 4 4 32 PRESS CTRL WINDOW SRW 4 4 33 FINAL VALUE CUTOFF HI SRW 4 4 34 FINAL VALUE CUTOFF LO SRW 4 4 35 STOP POS SRW 4 4 36 STOP LO POS SRW 4 4 37 STROKE TIME OPEN LIM NRW 5 38 STROKE TIME CLOSE LIM NRW 5 39 MAIN RESERVED 2 NRW 4 40 PRESSURE SUPPLY CAL REF NRW 4 41 CYCLE CNTR NRW 4 4 42 CYCLE CNTR LIM SRW 4 4 43 CYCLE GNTR DEADBAND SRW 4 4 44 TRAVEL ACCUM NRW 4 4 45 TRAVEL ACCUM LIM SRW 4 4 46 TRAVEL ACCUM DEADBAND SRW 4 4 47 STROKE LENGTH SRW 4 4 48 POS ALERT HI SRW 4 4 49 POS ALERT LO SRW 4 4 50 POS DEADBAND SRW 4 4 51 POS DEVIATION TIME SRW 4 4 52 INTERNAL TEMP R 4 4 53 HOURS SINCE LAST POWERUP NRW 4 54 HOURS SINCE LAST RESET NRW 4 55 HOURS LIFE TIME NRW 4 56 SIG START NRW 4 4 57 SIG STOP NRW 4 4 58 SIG RATE NRW 4 4 59 SIG HOLD NRW 4 4 60 SIG INDEX NRW 2 2 61 SIG FLAGS NRW 1 1 62
17. 19MFG CONFIGURATION STATUS R Simple STRING 0 20MFG CONFIGURATION MASKING NRW Simple STRING 0 21MFG PRESSURE STATUS R Simple STRING 0 22MFG X PRESSURE MASKING NRW Simple STRING 0 23MFG EFFORT R Simple FLOATING POINT 0 24MFG PRESS CTRL EFFORT R Simple FLOATING POINT 0 25MFG NTEGRAL EFFORT R Simple FLOATING POINT 0 26MFG SPOOL OFFSET RW Simple FLOATING POINT 0 27 MFG 0 0 COMMAND RW Simple FLOATING POINT 0 28MFG EFFORT R Simple FLOATING POINT 0 29MFG SPOOL POSITION R Simple FLOATING POINT 0 30MFG 5 001 EFFORT R Simple FLOATING POINT 0 31MFG 0 OFFSET R Simple FLOATING POINT 0 32MFG PIEZO COMMAND R Simple FLOATING POINT 0 33MFG X USER INTERFACE INSTANT R Simple STRING 0 34MFG USER INTERFACE ACTIVE RW Simple STRING 0 35MFG GAIN EFFECTIVE R Simple FLOATING POINT 0 36MFG GAIN MULT SRW Simple FLOATING POINT 0 05 39 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Index Origin Name Store Date Type Default Value 37MFG GAIN EFFECTIVE R Simple UNSIGNED16 0 38MFG GAIN FILTER SRW Simple UNSIGNED16 0 39MFG PRESS CTRL G
18. 7 in 55 68 mm 2 8 3 3 in 69 84 mm 3 4 4 1 in 85 103 mm 4 2 4 9 in 104 125 mm 5 0 6 0 in 126 152 mm 6 1 7 3 in 153 184 mm 7 4 8 8 in 185 223 mm 8 9 10 5 in 224 268 mm 10 6 12 7 in 269 322 mm 12 8 15 2 in 323 386 mm 15 3 18 2 in 387 462 mm 18 3 21 8 in 463 552 mm Other ACT_MAN_ID Valtek Piston Kammer Valtek Diaphragm Rotary Automax NAF Valtek Diaphragm Linear Fisher Other C ACT FAIL ACTION None Mechanical Fail Closed Mechanical Fail Open Mechanical Fail In Place ACT TYPE Linear piston Linear diaphragm Rotary piston Rotary diaphragm Rotary Rack amp Pinion Other ACT SIZE Valtek Piston 25 Valtek Piston 50 Valtek Piston 100 Valtek Piston 100C Valtek Piston 150C Valtek Piston 200 Valtek Piston 200C Valtek Piston 300 Valtek Piston 400 Valtek Piston 500 Valtek Piston 600 Kammer 37 Kammer 38 Kammer 39 Kammer 3D Kammer 47 Kammer 48 Kammer 49 Kammer 4D 76 FLOWSERVE Parameter Name SIZE Bit or Byte Values Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Description Kammer PO Kammer P1 Kammer P2 Kammer P3 Kammer P4 Kammer P5 Kammer P6 Kammer P7 Valtek Diaphragm Rotary NR1 Valtek Diaphragm Rotary NR2 Valtek Diaphragm Rotary NR3 Automax B050D Automax B063D Automax B085D Automax B100D Automax B115D Automax B125D Automax B150D
19. 8 10 Digital Input Function Block 48 8 11 Input Selector Function Block 48 8 12 Output Splitter Function Block 49 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 e 8 13 Function Block 50 8 14 Link Objects 54 8 15 View Objects 55 8 16 Alert Objects 61 8 17 Alarm and Event Reporting 62 8 18 Trend Objects 65 8 19 Domain Objects 65 8 20 Device Description 65 8 21 Object Dictionary 66 8 22 System Management 66 8 23 Network Management 69 8 24 Logix 3400MD Digital Positioner Variable Enumeration 70 9 Calibration 77 9 1 Introduction 71 9 2 Overview 77 9 3 Calibration 78 10 Troubleshooting 80 10 1 Introduction 80 10 2 Overview 80 10 3 Device Troubleshooting 81 10 4 Device Diagnostics 83 10 5 Block Configuration Errors 84 10 6 Clearing Block Configuration Errors 86 10 7 Additional Troubleshooting 87 10 8 Simulation Mode 87 10 9 Logix 3400MD Digital Positioner 89 10 10 Internal Positioner Issues 90 10 11 Stroke Characterization 94 10 12 Characterization Procedure 95 10 13 Initiating a Valve Signature 95 10 14 Signature Procedure 97 10 15 Logix 3400MD Function Block Execution Times 98 10 16 Logix 3400MD Diagnostic Parameters Enabled with TEST_MODE 99 10 17 Logix 3400MD Fault States 100 10 18 Logix 3400MD Digital Ouput DO Operation 100 10 19 Logix 3400MD Digital Input DI Operation 101 11 Software Maintenance 101 Appendix A Sample Configuration Record 101 Glossary LOWS E RVE Logix 3400MD Digital Positio
20. CURVE SELECT 4 Enter the values for CURVEX and CURVEY to define the desired response Care must be taken to assure that each CURVEX value has the correct corre sponding CURVEY value The user may choose any number in the range to define the curve The 21 CURVEX points do not need to be evenly spaced if so desired However the CURVEX values must be in ascending or equal order The CURVEY points may be any value in the range ascending or descending The response is a linear interpolation or straight line response between points All 21 points must be defined i e If only 5 point sets were needed to define the desired operation the remaining 16 points would need to be set to 110 5 Write the changes to the Logix 3400MD digital positioner 6 Verify the proper operation of the stroke response by incrementally writing values to FINAL VALUE The Resource Block must also be OOS first CMD USED FINAL POSITION VALUE and the valve response should track the desired curve 7 Return the valve to service by returning both MODE BLKSs back to Auto Characterization Retention Once a custom curve has been loaded into the Logix 3400MD digital positioners memory it is retained in the EPROM until it is either edited or replaced Turning Custom Characterization Active on or off now selects between a linear response Off or the new custom curve On If either of the other two factory curves is selected it will overwrite the custom curve in RA
21. Database write access AO Block Connections CAS IN is the only linkable input parameter and is used with a PID function block for direct cascade connection RCAS IN is a contained input parameter used for remote cascade connection OUT and BKGAL OUT are linkable output parameters RCAS OUT is a contained output parameter for remote cascade connection Logix 3400MD Digital Positioner LGENIM3405 02 11 13 FLOWSERVE e The OUT parameter of the AO block is used to set the FINAL POSITION VALUE in the transducer block as modified by the FINAL VALUE RANGE READBACK OUT tracks the valve position in percent Fail safe Handling The fail safe parameters determine the response of an output block to the following conditions FSTATE TIME is the number of seconds without communication or with Initiate Fail Safe at the CAS IN status required to put this block into the fail safe state The FAULT STATE parameter of the resource block may also put this block into the fail safe state The Failsafe Type 1 0 option determines whether the action is simply to hold or to move to FSTATE VAL The Target to Manual if IFS 1 0 option may be used to latch the fail safe state when IFS appears in the CAS IN status This will cause a fail safe block alarm After the cause of the IFS status is removed the target mode may be returned manually to CAS mode when it is safe to do so Section 10 17 described how to setup the fail safe handling AO Block Parameter
22. Derivative The output is adjusted by tuning constants Three tuning constants are contained 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 term 3 RATE is the tuning constant of the Derivative term is usually modified by lag which is set at some fixed ratio higher than the rate time to create a rate gain No lag occurs 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 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 is a configuration parameter that contains one of three selected algorithm types A B or C Where e GAIN and RESET all act on the error between set point and measured variable e BRATE acts on the measured variable only GAIN and RESET use the error e CRATE and GAIN act on the measured variable only and RESET use
23. FLOATING POINT FLT MAX 54 STND LO LO PRI 1 Simple UNSIGNED8 0 55 STND LO LO LIM 4 Simple FLOATING POINT FLT MAX 56 STND DV HI PRI 1 Simple UNSIGNED8 0 57 DV HI LIM 4 Simple FLOATING POINT FLT MAX 58 STND DV LO PRI 1 Simple UNSIGNED8 0 59 STND DV LO LIM 4 Simple FLOATING POINT FLT MAX 60 STND ALM 21 Record ALARM FLOAT 0 0 0 0 0 0 0 0 4 0 0 61 21 Record ALARM FLOAT 0 0 0 0 0 0 0 0 2 0 0 62 STND LO ALM 21 Record ALARM FLOAT 0 0 0 0 0 0 0 0 1 0 0 63 STND LO LO ALM 21 Record ALARM FLOAT 0 0 0 0 0 0 0 0 3 0 0 64 DV HI ALM 21 Record ALARM FLOAT 0 0 0 0 0 0 0 0 6 0 0 65 STND DV LO ALM 21 Record ALARM FLOAT 0 0 0 0 0 0 0 0 5 0 0 66 MFG PID FORM 1 Simple UNSIGNED8 1 67 MFG ALGO TYPE 1 Simple UNSIGNED8 1 68 MFG OUT LAG 4 Simple FLOATING POINT 0 69 MFG GAIN NLIN 4 Simple FLOATING POINT 1 70 MFG GAIN COMP 4 Simple FLOATING POINT 1 71 MFG ERROR ABS 4 Simple FLOATING POINT 0 72 MFG WSP 5 Record FLOAT S 0xc0 0 0 51 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee Index Origin Name Size Date Type Default Value 73 MFG FUTURE1 4 Simple FLOATING POINT 0 74 MFG PID_BLOCK_TEST 8 Array UNSIGNED8 0 0 0 0 0 0 0 0 Table 8 15 Flowserve PID Parameters Parameter Name Description Parameter Contents Configuration parameter specifies the IDEAL or RO
24. INTERFACE ACTIVE Bit 0 0X0001 Air Action ATO Enabled Bit 1 0x0002 Characterization Linear Bit 2 0x0004 Auto Tune Enabled Bit 3 0x0008 Low Friction Mode Bit 4 0x0010 Calibration Auto Bit 5 0x 0020 DIP SW 6 Spare Bit 6 0x0040 Up Button Not Pressed Bit 7 0x0080 Dn Button Not Pressed Bit 8 0x0100 Bit 1 of Gain Selector Bit 9 0x0200 Bit 2 of Gain Selector Bit 10 0x0400 Bit 3 of Gain Selector Bit 11 0x0800 For Future Use Bit 12 0x1000 Qucik Cal Button Not Pressed Bit 13 0x2000 For Future Use Bit 14 0x 4000 For Future Use Bit 15 0x8000 For Future Use LOAD EE DEFAULTS Normal Operation Reset Non Volatile Variables Reset Calibration Variables CURVE SELECT Equal Percent Quick Opening Custom CurveX CurveY Unit Parameters Table 8 27 Unit Parameters Table Parameter Bit or Byte Values Description 0 5 PRESSURE UNITS 6 7 1 1 2 INTERNAL TMEP UNITS 32 Deg C 33 Deg F F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee Diagnostic Parameters Table 8 28 Diagnostics Parameters Table Parameter Name Bit or Byte Values Description DIAGNOSTIC_LEVEL 0 Standard Advanced Pro PST_RESULT Fail 1 Pass CYCLE_TRAVEL_RESET Bit 0 0x01 Valve Cycle Reset Bit 1 0x02 Valve Travel Reset Bit 2 0x04 Spool Cycle Reset Bit 3 0x08 Spool Travel Reset TREND STATE Unlock Trend Data Lock Trend Data Clear Trend Data Informational Parameters Table 8 29 Informational Parameters Table Par
25. List Table 8 8 lists the block parameters and default values for the AO function block Table 8 9 AO Function Block Parameter List Index Origin Name Store Date Type Default Value 0 SIND ANALOG OUTPUT BLOCK SRW Record BLOCK 1 SIND ST REV SR Simple UNSIGNED16 2 SIND TAG DESC SRW Simple X OCTET STRING 3 SIND STRATEGY SRW Simple UNSIGNED16 0 4 SIND ALERT KEY SRW Simple UNSIGNED8 0 5 SIND MODE SRW Record MODE 0x01 0x01 0x79 0x10 6 SIND BLOCK ERR R Simple STRING 0 7 SIND PV R Record FLOAT 5 0 0 0 8 SIND SP NRW Record FLOAT S AO VAL SP STATUS AO VAL SP VALUE 9 SIND JOUT NRWO Record FLOAT 5 0 80 0 0 10 STND SIMULATE RW Record FLOAT 0 0 0 0 0 0 1 11 STND PV SCALE SRW Record SCALE 100 0 0 0 0 0 12 SIND XD SCALE SRW Record SCALE 100 0 0 0 0 0 13 STND GRANT DENY RW Record ACGESS PERM 0 0 14 SIND 0 OPTS IO OPTS AO SRW Simple STRING 0 15 ISTND STATUS OPTS STATUS OPTS AO SRW Simple STRING 0 16 STND READBACK R Record FLOAT S 0 80 0 0 17 STND IN NRWI Record FLOAT S 0xC3 0 0 18 STND SP RATE DN SRW Simple FLOATING POINT FLT MAX 19 STND SP RATE UP SRW Simple FLOATING POINT FLT MAX 20 SIND HI LIM SRW Simple X FLOATING POINT 100 21 SIND SPLO LIM SRW Simple X FLOATING POINT 0 22 SIND CHANNEL SRW Simple UNSIGNED16 1 23 SIND TIME SRW Simple X FLOATING POIN
26. NUM NRW Simple VISIBLE STRING T 72 MFG VALVE TYPE NRW Simple UNSIGNED8 99 73 MFG VALVE SIZE NRW Simple UNSIGNED8 99 74 MFG VALVE CLASS NRW Simple UNSIGNED8 99 75 MFG VALVE_ENDCON NRW Simple UNSIGNED8 99 76 MFG VALVE_BODYMAT NRW Simple UNSIGNED8 99 77 MFG VALVE PACKTYPE NRW Simple UNSIGNED8 99 35 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee 78 MFG LEAK_CLASS NRW Simple UNSIGNED8 99 79 MFG VALVE FLAGS NRW Simple UNSIGNED8 99 80 MFG VALVE TRIMMAT NRW Simple UNSIGNED8 99 81 MFG VALVE TRIMCHAR NRW Simple UNSIGNED8 99 82 MFG VALVE TRIMTYPE NRW Simple UNSIGNED8 99 83 MFG VALVE TRIMNO NRW Simple UNSIGNED8 99 84 MFG VALVE SN NRW Simple VISIBLE STRING E 85 MFG STEM DIAM NRW Simple FLOATING POINT 0 86 MFG RATED TRAV NRW Simple FLOATING POINT 0 87 MFG INLET PRESS NRW Simple FLOATING POINT 0 88 MFG OUTLET PRESS NRW Simple FLOATING POINT 0 89 MFG MAN ID NRW Simple UNSIGNED8 0 90 MFG FAIL ACTION NRW Simple UNSIGNED8 0 91 MFG ACT MODEL NUM NRW Simple VISIBLE STRING 1 92 MFG ACT SN NRW Simple VISIBLE STRING All 93 MFG ACT_TYPE NRW Simple UNSIGNED8 99 94 MFG AGT SIZE NRW Simple UNSIGNED8 105 95 MFG AGT AREA NRW Simple FLOATING POINT 23 8 96 MFG SPRING TYPE NRW Simple UNSIG
27. 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 FRRis actually bit string which provides a means to show multiple status or error conditions A status message identifying the fault can be viewed by accessing the parameter Table 10 5 shows the bit mapping of the BLOCK ERR parameter To verify that block and background diagnostics are executing in a particular block View the BLOCK TEST parameter of the block If the first element of the parameter BLOCK TEST is incrementing the block is executing and the diagnostics are active GAUTION If the first element value is not increasing the block is not executing Table 10 5 BLOCK ERR Parameter Bit Mapping BLOCK ERR Bit Message Name Description No bit set NO ERROR If no bits are set there is no error 0 OUT OF SERVICE Indicates the block is out of service 005 1 POWER UP Not used 2 NEEDS MAINT NOW This indicates that the device needs maintenance now Diagnostics has indicated that something has failed causing the positioner to not be able to operate Transducer block only 3 REEDBACK CHECK Communication failure to serial EEPROM Resource block only Checksum Error FAILED 4 LOST NV DATA EEPROM write to block DB failed EEPROM write to Stack DB failed Resource block only EEPROM write to
28. Positioner to a Fieldbus Network on page 19 2 Verify FB protocol being used 1 Reload DD making sure Valtek products are listed Erratic communications occur 1 Maximum cable length or impedance exceed ed 2 Card not receiving enough power Laptop bat teries possibly low 3 Interference with 1 5 barrier 1 See Wiring the Logix 3400MD Digital Positioner to a Fieldbus Network on page 19 2 Refer to AGA 181 for Network checkout proce dure Alarms Temperature alarm occurs 1 Ambient temperature has exceeded electronics ratings 1 See Temperature Alarm in Section 8 Hall sensor alarm occurs 1 Hall connector may have bad connection 2 Sensor may be damaged 3 Low air supply pressure 1 See Hall sensor Alarm in Section 8 3 Check air supply Modulator current alarm occurs 1 Modulator minimum pressure may be too low 2 Clogged orifice 3 Bad cable connection 1 See Modulator current Alarm in Section 8 EEPROM checksum alarm occurs 1 Error when reading non volatile memory stor age 1 See EEPROM checksum Alarm in Section 8 Multiple internal flags occur 1 Bad micro controller on main PCB assembly LEDs LED four blink sequence begins with green 1 Any sequence beginning with a green light is a normal operating mode 1 Go to Section 7 9 in the Logix 3400MD IOM LED four blink sequence begins with yellow 1 Any sequence starting with a yellow
29. RS FEATURE OUT READBACK is set TRUE SIMULATE SIMULATE is used for READBACK When FEATURE OUT READBACK is FALSE OUT will be used for READBACK NOTE The default value for RS FEATURE OUT READBACK is FALSE With the Logix 3400MD this feature should always be set TRUE to allow the transducer block position value to be the source of READBACK READBACK OUT ALLOWS THE USER A LINKABLE PARAMETER FOR VALVE POSITION PV Parameter The PV value is simply the READBACK value re scaled from XD units to PV units PV status is copied directly from READBACK status 8 9 Digital Output Function Block DO Block Description Operates according to Section 10 18 Table 8 10 DO Function Block Parameter List Index Origin Name Store Date Type Default Value 0 SIND DISCRETE OUTPUT BLOCK SRW Record BLOCK 0 1 SIND ST REV SR Simple UNSIGNED16 0 2 SIND TAG DESC SRW Simple 0 STRING 3 SIND STRATEGY SRW Simple UNSIGNED16 0 4 SIND ALERT KEY SRW Simple UNSIGNED8 0 5 SIND MODE SRW Record MODE 0 01 0 01 0 79 0 30 6 STND BLOCK ERR R Simple STRING 0 7 SIND PVD R Record DISC S 0 0 8 SIND SPD NRW Record DISC S DO VAL SP D STATUS DO VAL SP D VALUE 9 TND OUT_D NRWO Record DISC 5 0 1 0 10 SIND SIMULATE D RW Record DISC 0 0 0 0 1 11 SIND STATE SRW Simple UNSIGNED16 0 12 SIND STATE SRW Simple UNSIGNED16 0 13 SIND GRANT DENY RW Record A
30. SIND TAG DESC SRW Simple JOCTET STRING 3 SIND STRATEGY SRW Simple UNSIGNED16 0 4 SIND ALERT KEY SRW Simple X UNSIGNED8 0 5 SIND MODE SRW Record 0x01 0x01 0x19 0x10 6 SIND BLOCK ERR R Simple STRING 0 7 SIND PVD R Record DISC 5 0 0 8 SIND OUT D NRWO Record DISC 5 0 0 9 SIND SIMULATE D RW Record SIM DISC 0 0 0 0 1 10 STND STATE SRW Simple UNSIGNED16 0 11 STND 00 STATE SRW Simple UNSIGNED16 0 12 STND GRANT DENY RW Record ACCESS PERM 0 0 13 ISTND 0 OPTS IO OPTS DI SRW Simple STRING 0 14 SIND STATUS OPTS STATUS OPTS DI SRW Simple STRING 0 15 STND CHANNEL SRW Simple UNSIGNED16 0 16 STND PV FTIME SRW Simple FLOATING POINT 0 17 SIND FIELD VAL D R Record DISC 5 0 0 18 STND UPDATE EVT RW Record ALARM EVENT 0 0 0 0 0 0 9 0 19 STND BLOCK ALM RW Record ALARM DISC 0 0 0 0 0 0 0 8 0 0 20 STND ALARM SUM ALARM SUM DI SRW Record ALARM SUMMARY 0 0 0 0 21 I STND OPTION DI SRW Simple STRING 0 22 SIND DISC PRI Simple UNSIGNED8 0 23 SIND DISG LIM Simple X UNSIGNED8 0 24 SIND DISG ALM RW Record ALARM DISC 0 0 0 0 0 0 0 7 0 0 The functionality of these parameters follows the standard Fieldbus definitions as defined in the Foundation Fieldbus specifications 8 11 Input Selector Function Block IS Block Description The signal selector block provides selection of up to four inputs and generates an output base
31. STND PID_BLOCK 62 Record BLOCK 0 1 STND ST_REV 2 Simple UNSIGNED16 0 2 STND TAG_DESC 32 Simple OCTET_STRING i E 3 STND STRATEGY 2 Simple UNSIGNED16 0 4 STND ALERT KEY 1 Simple UNSIGNED8 0 5 STND MODE_BLK 4 Record MODE 0x01 0x01 0xF9 0x10 6 STND BLOCK ERR 2 Simple BIT STRING 0 7 STND PV 5 Record FLOAT S 0x80 0 0 8 STND SP 5 Record FLOAT S PID VAL SP STATUS PID VAL SP VALUE 9 STND OUT 5 Record FLOAT S 0x80 0 0 10 STND PV SCALE 11 Record SGALE 100 0 0 0 0 0 11 STND OUT SGALE 11 Record SGALE 100 0 0 0 0 0 12 STND GRANT DENY 2 Record ACCESS PERM 0 0 13 STND 2 Simple BIT STRING 0 14 STND STATUS OPTS STATUS OPTS PID 2 Simple BIT STRING 0 15 STND IN 5 Record FLOAT S 0x80 0 0 16 STND PV FTIME 4 Simple FLOATING POINT 0 17 STND BYPASS 1 Simple UNSIGNED8 0 18 STND CAS_IN 5 Record FLOAT_S 0x1C 0 0 19 STND SP_RATE_DN 4 Simple FLOATING_POINT FLT_MAX 20 STND SP_RATE_UP 4 Simple FLOATING_POINT FLT_MAX 21 STND SP_HI_LIM 4 Simple FLOATING_POINT 100 22 STND SP_LO_LIM 4 Simple FLOATING_POINT 0 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Nes Index Origin Name Size Date Type Default Value 23 STND GAIN 4 Simple FLOATING POINT 1 24 STND RESET 4 Simple FLOATING POINT FLT MAX 25 STND BAL
32. Simple INTEGER16 0 62 MFG WORST VALVE HEALTH R Simple FLOATING POINT 0 63 MFG WORST ACTUATOR HEALTH R Simple FLOATING POINT 0 64 MFG WORST POSITIONER HEALTH R Simple FLOATING POINT 0 65 MFG WORST CONTROL HEALTH R Simple FLOATING POINT 0 66 MFG SUPPLY PRESSURE HIGH START LIMIT RW Simple FLOATING POINT 0 67 MFG SUPPLY PRESSURE LOW START LIMIT RW Simple FLOATING POINT 0 68 MFG SUPPLY PRESSURE LOW END LIMIT RW Simple FLOATING POINT 0 69 MFG SUPPLY PRESSURE HIGH PERCENT NR Simple FLOATING POINT 0 70 MFG SUPPLY PRESSURE LOW PERCENT NR Simple FLOATING POINT 0 71 MFG FRICTION R Simple INTEGER16 0 72 MFG FRICTION STARTING R Simple UNSIGNED16 0 73 MFG FRICTION HIGH START LIMIT RW Simple UNSIGNED16 0 74 MFG FRICTION HIGH END LIMIT RW Simple UNSIGNED16 0 75 MFG FRICTION LOW START LIMIT RW Simple UNSIGNED16 0 76 MFG LOW END LIMIT RW Simple UNSIGNED16 0 77 MFG FRICTION HIGH PERCENT YELLOW NR Simple FLOATING POINT 0 43 44 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Index Origin Name Store Date Type Default Value 78 MFG LOW PERCENT YELLOW NR Simple FLOATING POINT 0 79 MFG X PRESSURE DIFFERENTIAL R Simple FLOATING POINT 0 80 MFG BLOCK TEST R Array UNSIGNED8 0 0 0 0 0 0 0 0 81 MFG DELAY SRW Simple UNSIGNED16 0 82 MFG FRICTION UNITS RW Simple UNSIGNED8 0 83 MFG
33. Small Steps Large Steps deviation Figure 10 2 Gain Effect Diagram This algorithm allows for quicker response to smaller steps yet stable control for large steps Refer to Figure 10 2 Setting the gain multiplier to zero and max gain min gain results in a typical fixed proportional gain The higher the gain multiplier the larger the required deviation before the gain increases Default values upon initiating a reset to the factory defaults are maxi mum 2 0 minimum gain 1 0 and gain multiplier 0 05 These values will allow stable control on all Valtek control product actuator sizes Integral Gain IGAIN The integral gain is primarily for deviations due to temperature drift within the inner loop spool control The factory default value is 10 Although higher numbers can speed the time it takes to reach zero deviation it can add overshoot if too large It is recommended that maximum and minimum gains be adjusted while leaving Integral Gain fixed at 10 Integration is disabled below a stem position of 3 percent and above a stem position of 97 percent This is to prevent integration windup from calibration shifts due to lower pressure or a damaged seat which may prevent fully closing the valve Integration Summer The integral summer within the Logix 3400MD digital positioner is clamped at 20 00 percent and 20 00 percent If the integration summer is fixed at 20 or 20 it usually indicates a control problem Some reason
34. TRAVEL ACCUM UNITS SRW 1 1 63 PRESSURE UNITS SRW 1 1 64 INTERNAL TEMP UNITS SRW 1 1 65 XD FSTATE OPT SRW 1 1 66 ELEGTRONIGS SN NR 8 8 67 SOFTWARE VER MAJOR NR 2 2 68 SOFTWARE VER MINOR NR 2 2 69 SOFTWARE DATE CODE SRW 8 8 70 VALVE MAN ID SRW 1 71 VALVE MODEL NUM NRW 32 32 72 VALVE TYPE NRW 1 73 VALVE SIZE NRW 1 1 74 VALVE CLASS NRW 1 1 75 VALVE ENDCON NRW 1 1 76 VALVE BODYMAT NRW 1 1 77 VALVE NRW 1 1 78 LEAK GLASS NRW 1 1 79 VALVE FLAGS NRW 1 1 80 VALVE TRIMMAT NRW 1 1 81 VALVE TRIMCHAR NRW 1 1 82 VALVE TRIMTYPE NRW 1 1 57 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we 83 VALVE_TRIMNO NRW 1 1 84 VALVE_SN NRW 32 32 85 STEM DIAM NRW 4 4 86 RATED TRAV NRW 4 4 87 INLET PRESS NRW 4 4 88 OUTLET PRESS NRW 4 4 89 ACT MAN ID NRW 1 1 90 ACT FAIL ACTION NRW 1 1 91 ACT MODEL NUM NRW 32 32 92 ACT SN NRW 32 32 93 ACT TYPE NRW 1 1 94 AGT SIZE NRW 1 1 95 ACT AREA NRW 4 4 96 SPRING TYPE NRW 1 1 97 PO DATE NRW 8 8 98 INSTALL DATE NRW 8 8 99 MFG PHONE NRW 18 18 100 PUR ORDER NUM NRW 18 18 101 FINAL VALUE RANGE SRW 11 11 102 XD CAL LOC SRW 32 32 103 XD CAL DATE SRW 8 8 104 XD CAL WHO SRW 32 32 105 MAIN RESERVED 3 RW 4 4 106 MAIN RESERVED 4 RW 4 4 107 CONTROL CONFIG NRW 1 1 1 108 MISC CONFIG NRW 1 1 109 MAI
35. TREND DATA 1 R Array INTEGER16 All 0 84 MFG TREND DATA 2 R Array INTEGER16 85 MFG TREND DATA 3 R Array INTEGER16 All 0 86 MFG TREND_DATA_4 R Array INTEGER16 All 0 87 MFG TREND DATA 5 R Array INTEGER16 All 0 88 MFG TREND DATA 6 R Array INTEGER16 All 0 89 MFG DATA 7 R Array INTEGER16 All 0 90 MFG TREND DATA 8 R Array INTEGER16 All 0 91 MFG TREND DATA 9 R Array INTEGER16 8 8 Analog Output Function Block AO Block Description The Analog Output function block serves as the external interface for the transducer function block The value of SP is used to produce the OUT value which is then sent to the transducer block to specify the valve position PV reflects the actual valve position reported by the transducer block The AO function block operates on the output value from a control block such as PID and performs the following primary functions most can be user configured Set point source selection limiting e Units conversion e Fault state action e Position read back e Alarming e control e Output calculation The database contains the standard AO block database as defined in the FF FBAP specifications Flowserve product extensions are specified in the Logix 3400MD digital positioner parameter dictionary and are described below The interface to the AO block contains the following Execute function block e Database read access e Alarm acknowledgment e
36. Villach Operation Kasernengasse 6 9500 Villach Austria Phone 43 0 4242 41181 0 Flowserve Australia Pty Ltd 14 Dalmore Drive Scoresby Victoria 3179 Australia Phone 61 7 32686866 FCD LGENIM3405 02 11 13 To find your local Flowserve representative please use the Sales Support Locator System found at China 585 Hanwei Plaza 7 Guanghau Road Beijing China 100004 www flowserve com contact htm Phone 86 10 6561 1900 Flowserve India Controls Pvt Ltd Plot 4 1A E P I P Whitefield Bangalore Kamataka India 560 066 Phone 91 80 284 10 289 or call USA 1 801 489 8611 1 a a anuta wiren properly selected this Flowserve product is designed to perform its intended function safely during its useful life However the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial service conditions Although Flowserve can and often does provide general guidelines it cannot provide specific data and warnings for all possible applications The purchaser user must therefore assume the ultimate responsibility for the proper sizing and selection installation operation and maintenance of Flowserve products The purchaser user should read and understand the Installation Operation Maintenance IOM instructions included with the product and train its employees and contractors in the safe use of Flowserve products in co
37. and GAIN LOWER SPOOL OFFSET This parameter tells the positioner where the spool valve s null position is This value is set during a stroke calibration procedure and requires no further adjustment USER INTERFACE INSTANT This parameter shows the instant value of the front panel DIP switches button presses and gain selector switch These values are stored into the USER INTERFACE ACTIVE parameter during a Quick Cal USER INTERFACE ACTIVE This parameter is actually used by the system and allows the user to change the front panel settings without actu ally changing the setting on the physical device If these settings match the DIP switches then this parameter should not have to be changed The settings that are changed through this parameter are as follows e Air Action ATO Enabled allows the user to set the device to Air to Close or Air to Open e Characterization Linear allows the user to select what characterization is requested When this is set to other then the CURVE SE LECT parameter must be set e Autotune Enabled allows the user to enable or disable the autotune feature e Low Friction Mode allows the user to specify the device to operate in low or high friction mode 41 42 E LOWSE RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Nes e Calibration Auto allows the user to specify the auto calibration default or to enter into a job calibration mode LX SPI STATUS FLAGS Should a loss of communica
38. clock synchronization message is periodically sent by the time publisher to all fieldus devices The application clock time is independently maintained in each device based on its own internal crystal clock Clock synchronization provides the capability for devices to time stamp data events and alarms when they occur Sync and Scheduling Objects These objects are used by system management to provide application clock synchronization and macro cycle scheduling for the device Table 8 23 identifies the sync and scheduling objects with their object directory index and default values Table 8 23 SM Sync and Scheduling Objects 00 Object Description H R DefaultValue CURRENT_TIME The current application clock time 262 Dynamic LOCAL_TIME_DIFF Used to calculate local time from CURRENT_TIME 263 0 AP_CLOCK_SYNC_INTERVAL The interval in seconds between time messages on the link bus 264 Set by SM mgr during address assignment 67 68 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Nes TIME RUD The application clock time contained in the last clock message 265 Dynamic EE The node address of the primary time publisher for the local link bus 266 Set by SM mgr during address assignment TIME PUBLISHER ADDR The node address of the device which sent the last clock message 267 Dynamic Unused 268 MACROCYCLE DURATION The length of the macro cycle in 1 32 of a millisecond ticks 269 S
39. digital positioner to perform the stroke calibration Confirm that positioner is con figured properly then proceed 1 Prepare the device and safe the area for the removal of the main housing cover 2 Remove the cover 3 Press and hold the Re Cal button for at least five seconds to initiate the stroke calibration NOTE The transducer block must be out of service before the Re Cal button will be active If Auto Tune is selected this will also auto tune the positioner response 4 Replace cover and return to operation Refer to Logix 3400MD Digital Positioner IOM for more details 93 Calibration The output position of the Logix 3400MD digital positioner is calibrated using the transducer block CALIBRATE parameter The positioner performance must be verified by the operator Calibration Parameters Table 9 1 lists transducer block parameters and their values used in the calibration procedures Table 9 1 Transducer Block Calibration Parameters Parameter Description Value Meaning Comments MODE BLK The operating mode Permitted modes The transducer block must be in the OOS mode to perform Logix of the transducer 3400MD digital positioner calibration block Auto Auto target mode 008 Out of Service GALIBRATE One byte value 0 Normal operation Valve tracks Calibration and correction commands are executed when the which selects the FINAL VALUE command is written calibration m mm operation to be 1 Initiates st
40. electronics operation the valve and actuator health and the mechanical linkage Refer to the following parameters to view positioner alarms e CONTROLLER STATE STATUS POSITIONER STATUS MECHANICAL STATUS e BECTRONC STATUS e PRESSURE STATUS NNERLOOP STATUS e OUTERLOOP STATUS CONRGURATION STATUS 3400MD Status Alarms Table 8 20 Status Alarms Table FLOWSERVE s Function Parameter Block MAIN CONTROLLER STATE STATUS MAIN POSITIONER STATUS MECHANICAL STATUS TECH ELECTRONIC STATUS TECH PRESSURE STATUS TECH INTERLOOP STATUS TECH OUTER LOOP STATUS TECH CONFIGURATION STATUS Logix 3400MD Digital Positioner LGENIM3405 02 11 13 3400 Alert Alarm Items GREYED OUT INITIALIZING FACTORY RESET STATE JOG COMMAND MODE SIGNATURE IN PROGRESS CONTINUOUS FRICTION MODE POSITION DEVIATION ALARM SOFT STOP UPPER LIMIT SOFT STOP LOWER LIMIT POSITION UPPER LIMIT POSITION LOWER LIMIT MPC ACTIVE LOCAL INTERFACE DISABLED ERROR HISTOR RESET ACTUATOR RATIO WARNING PNEUMATIC INABILITY TO FAI SAFE FRICTION HIGH WARNING FRICTION LOW WARNING FRICTION HIGH ALARM FRICTION LOW WARNING VALVE CYCLES WARNING VALVE TRAVEL WARNING TEMPERATURE HIGHT WARNING TEMPERATURE LOW WARNING SHUNT VOLTAGE REFERENCE ERROR PIEZO VOLTAGE ERROR WATCH DOG TIME OUT NV RAM CHECKSUM ERROR LOSS OF INTER PCB COMM ELECTRONIC INABILITY TO FAIL SAFE SUPPLY PRESSURE LOW ALARM SUPPLY PRESSURE HIGH WARNING
41. increases with a decrease in error This allows for maxi mum resolution and speed GAIN UPPER is the upper limit to proportional gain DGAIN The Logix 3400MD digital positioner uses a special gain algorithm The proportional gain increases with a decrease in error This allows for maxi mum resolution and speed GAIN LOWER is the lower limit to proportional gain IGAIN In addition to proportional gain the Logix uses integral as well This in the integral gain setting Typically this is set to 10 CALIBRATE This parameter initiates calibration Two types of calibration are available Stroke Pressure Sensors advanced pro models only To learn more about calibration refer to the Calibration section of this document STOP HIGH POS Software imposed stroke limit The positioner will not allow the valve to open beyond the value shown in this parameter STOP LOW POS Software imposed stroke limit The positioner will not allow the valve to close beyond the value shown in this parameter normally psi CYCLE CNTR This parameter counts the number of cycles that have occurred CYCLE DEADBAND In order for a cycle to be counted it must be greater than the value in this field CYCLE CNTR LIM CNTR If CYCLE COUNTER exceeds this value the LED lights will start to blink Green Red Green Green and a warning will be generated in TRAVEL FLAGS TRAVEL ACCUM Total distance the valve stem has traveled TRAVEL ACCUM DEADBAND Amount in percent of stroke the va
42. is for an air to open actuator port 1 should go to the bottom of the actuator The Logix 3400MD positioner has an electrical measurement range of 130 That is the electronics will sense stem position over a 130 range of travel of the follower arm On a rotary valve the typical rotation is 90 When installing a Logix 3400MD positioner on a rotary valve the 90 valve rotation must be centered within the 130 electrical range If mechanical movement falls outside the electrical measurement range the positioner can have a dead band at one end of travel in which valve movement cannot be sensed Question How do I know ifthe rotary linkage is centered within the 130 electrical range Answer The slot in the take off arm has enough clearance around the roller pin to move the follower arm slightly Move the valve to the fully closed position At this position move the follower arm within the slot clearance If the valve does not respond to the movement linkage adjustment is necessary Repeat this test at the fully open position To adjust the stem position linkage use the A D feedback variable viewed using AD RAW FB parameter Set TEST MODE bit Enable diagnostic Variable ac cess With the valve in its mechanical fail position i e no pressure applied slightly move the follower arm while watching the A D feedback If the number does not change the arm is not centered in the electrical range The number will bounce one or two counts due to n
43. is most common To Fail In Place In the AO block verify the Fault State to Value is NOT checked the OPTS parameter To Fail Closed Open or to designated value In the AO block verify the Fault State to Value is checked in the OP_OPTS parameter In the block set the FSTATE VAL parameter to the position you wish to fail to between 0 and 100 0 for closed or 100 for open or anything in between In the AO block set the FSTATE TIME parameter This parameter will delay the fault state action by the amount of time indicated The default for this is 0 zero seconds or no delay Some will recommend this value be set to something other than zero to ac count for momentary faults that recover itself To Test the fault state is set correct In the Resource Block set the SET FSTATE parameter to SET The device should move to the desired fault state When the test is complete in the Resource Block set the CLR FSTATE parameter to CLEAR The device should start functioning properly at this point 10 18 Logix 3400MD Digital Ouput DO Operation The DO block is designed to be able to set the position to a predetermined position based on the OUT d parameter of the DO block To implement schedule the DO block to run and set the DO OUT d parameter to the desired value based on the following table Note this will only work when the block is in AUTO mode A value of 16 in the DO OUT d parameter will disable the DO and
44. limits the green LED code will blink but the stem position will remain at the set limit Travel Accumulator The travel accumulator is equivalent to a car odometer and sums the total valve movement Using the user defined stroke length and travel dead band the Logix 3400MD digital positioner keeps a running total of valve movement When the positioner first powers up high and low dead band limits are calculated around the present position When the stem position exceeds the travel dead band the movement from the center of the dead band region to the new position is calculated and added to the travel accumulator From this new position dead band high and low limits are again calculated Example The Logix 3400MD digital positioner has a default dead band configuration of 20 percent and the valve has a 4 inch linear stroke When the valve first powers up the command signal is 50 percent The unit will calculate a high travel threshold of 70 percent 50 percent present position plus 20 percent dead band and a low travel threshold of 30 percent 50 percent present position minus 20 percent dead band As long as the stem position remains greater than 30 percent and less than 70 percent no additions are made to the travel accumulator Now assume the stem position moves to 80 percent which is outside the present dead band The Logix 3400MD digital positioner calculates the stem movement and adds this number to the travel accumulator 80percent pres
45. mA Milliamperes MD Maintenance and Diagnostics mmHg Millimeters of Mercury LAS Link Active Scheduler MSP Manufacturer s Signal Processing NM Network Management NMA Network Management Agent NMIB Network Management Information Base NPT National Pipe Taper pipe threads NV Non volatile OD Object Dictionary 005 Out of service OS Output Splitter PC Personal Computer workstation PID Proportional Integral Derivative PROM Programmable Read Only Memory PWA Printed Wiring Assembly RAM Random Access Memory RH Radio Frequency Interference ROM Read Only Memory SM System Management SMA System Management Agent SMIB System Management Information Base VCR Virtual Communication Reference VDC Volts Direct Current VFD Virtual Field Device XDTBMAIN Main Transducer Block XDTBTECH Tech Transducer Block XDTBMD Transducer Block XMTR Transmitter FLOWSERVE e Definitions Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Abbrev Defininition Alarm The detection of a block leaving a particular state and when it returns back to that state Application software program that interacts with blocks events and objects One application may interface with other applications or contain more than one application Block IA logical software unit that makes up one named copy of block and the associated parameters its block type specifies It can be a resource block transducer block or a function b
46. operation e Provide system application clock time synchronization e Provide scheduling of function blocks e Manage automatic device address assignment e Provide tag search service e System Management Information Base SMIB The SMIB contains various objects that are associated with system management operation Table 8 22 shows a listing of the SMIB object dictionary Groups of objects along with their starting index number are included in the SMIB for the Logix 3400MD digital positioner The numbers in parenthesis indicate the number of objects Supported Features The features supported by system management include the key features listed above as well as the ones designated in Table 8 23 The object SM SUP PORT indicates which features are supported by system management in the FBAP The features are mapped to the bits in the bit string shown below Table 8 21 System Management Supported Features SM SUPPORT bit Feature Supported 0 Set physical device tag agent yes 1 Set field device address agent yes 2 Clear address agent yes 3 Identify agent yes 4 Locating function blocks agent yes 5 Set physical device tag manager no 6 Set field device address manager no 7 Clear address manager no FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee 8 Identify manager no 9 Locating function blocks manager no 10 FMS server role yes 11 Application c
47. the compatible version of standard dictionary and DD for bols files are correct for the device the device on the host computer See Fieldbus Device Version Checking on page xi Check that the path name to locations of the stan Make sure that the path name of the standard dictionary and dard dictionary and DD files on the host computer DD are in the correct location for the fieldbus software applica Incorrect standard dictionary de vice description DD or symbols on host computer Incorrect path names to descrip tions on host computer is correct tion CA release Incorrect revision of Device Re Read the four 4 elements of the REVISION_ARRAY Perform a code download of the correct device firmware See source Block firmware parameters which are Code Download on page 133 e Board Firware Rev e Stack Rev Transducer Board Firmware Major Rev Transducer Board Firmware Minor Rev 81 82 Logix 3400MD Digital Positioner LGENIM3405 02 11 13 FLOWSERVE e Perform a code download of the correct device firmware See Code Download in section 11 Read the three elements of the REVISION ARRAY parameter which are Stack board firmware Stack board boot code Transducer board firmware NOTE The numbers when viewed as hexadecimal numbers are in the format MMmm Where MM is the major revision number and mm is the minor revision number Incorrect revision level of the d
48. the power and air supply to the unit 3 Remove the spool valve cover by removing the screw and sliding the cover assembly backwards until the tab is clear of the slot 4 Inspect the coalescing filter element in the spool valve cover for signs of oil water and debris that may have come from the air supply A clean filter is white 5 Remove the two phillips head screws holding the spool valve to the housing Inspect the free movement of the spool by carefully sliding the block up and down on the spool about 0 25 inches The block should slide on the spool with no resistance Carefully remove the block ensuring it is removed concentric with the spool 6 Inspect the block and spool for oil water debris and wear If oil water and or debris are found the spool and block can be cleaned with a non residue cleaner lint free cloth and soft bristle brush If wear is found replace the driver module assembly per the IOM manual T Before re assembly verify that the three O rings are in the counter bores on the machined platform where the spool valve block is to be placed LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 8 Carefully slide the block over the spool using the machined surface of the housing base as a register Slide the block toward the driver module until the two retaining holes line up with the threaded holes in the base If resistance is still encountered re clean both parts or replace the driver module as
49. to com municate with the Logix 3400MD digital positioner from a remote location to e Configure the Logix 3400MD digital positioner by selecting and setting operating parameters e Access diagnostic information to identify configuration communication Logix 3400MD digital positioner or process problems e Calibrate Logix 3400MD digital positioner e Request and display Logix 3400MD digital positioner data e Configure the Fieldbus network 1 2 Fieldbus Logix 3400MD Digital Positioner About the Logix 3400MD Digital Positioner The Logix 3400MD digital positioner includes FOUNDATION fieldbus electronics for operating ina Fieldbus network as an H1 device It features standard fieldbus function blocks with manufacturer specific additions for enhanced operation This Logix 3400MD digital positioner is a Link Master device which means it can function as the backup Link Active Scheduler in a fieldbus network In addition to providing the Fieldbus Interface the Logix 3400MD digital positioner can also perform loop control functions In conjunction with other FOUN DATION fieldbus compliant devices its function block set allows the formation of an extensive set of basic control applications A 2 2 lt m Figure 1 1 Fieldbus Positioner Logix 3400MD Digital Positioner The Logix 3400MD digital positioner in conjunction with any valve will in essence form a Fieldbus valve When configured in conjunction with an Honey
50. to device set the transducer and resource block MODE BLK parameter to OOS Out of Service 2 For stroke write the value 1 to CALIBRATE The valve will close and then open automatically The value will change values as the calibration continues Once completed CALIBRATE will retum to 0 This may take 10 seconds to 2 minutes depending on the actuator size 3 For actuator pressure transducers if so equipped input the measured supply pressure in psig in PRESSURE_SUPPLY_CAL_REF Write the value 2 to CALIBRATE The valve will close and then open automatically The value will change values as the calibration continues Once completed CALIBRATE will retum to 0 This may take 1 minute to 10 minutes depending on the actuator size 4 The positioner will return to tracking FINAL_VALUE 5 Change MODE_BLK to desired mode 6 When calibration is completed set transducer and resource block to auto mode to resume normal device operation Canceling Calibration Write ABORT to CALIBRATE The previous values are restored and CALIBRATE returns to NONE Additional Calibration Features Re Cal button Re Cal is a method by which the valve can be stroke calibrated without using the fieldbus configurator Important This feature is provided to allow stroke calibration being initiated at the positioner However the Logix 3400MD digital positioner Transducer block must be placed in Out of Service mode for the button to become active After co
51. A R Simple FLOATING POINT 0 23 MFG PRESSURE PORT B R Simple FLOATING POINT 0 24 MFG TEST MODE RW Simple BIT STRING 0 25 MFG GALIBRATE RW Simple UNSIGNED8 0 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 26 MFG GALIBRATION STATUS R Simple BIT STRING 0 27 MFG MAIN RESERVED 1 NRW Simple FLOATING_POINT 0 28 MFG P_GAIN SRW Simple FLOATING POINT 2 29 MFG GAIN SRW Simple INTEGER16 10 30 MFG D GAIN SRW Simple UNSIGNED16 2 31 MFG PRESS_CTRL_GAIN SRW Simple FLOATING_POINT 0 32 MFG PRESS_CTRL_WINDOW SRW Simple FLOATING_POINT 0 33 MFG FINAL_VALUE_CUTOFF_HI SRW Simple FLOATING_POINT 100 34 MFG FINAL VALUE CUTOFF LO SRW Simple FLOATING_POINT 0 35 MFG STOP_HI_POS SRW Simple FLOATING_POINT 110 36 MFG STOP_LO_POS SRW Simple FLOATING_POINT 10 37 MFG STROKE_TIME_OPEN_LIM NRW Record FLOAT_S 0x02 0 0 38 MFG STROKE_TIME_CLOSE_LIM NRW Record FLOAT_S 0x02 0 0 39 MFG MAIN_RESERVED_2 NRW Simple FLOATING_POINT 0 40 MFG PRESSURE_SUPPLY_CAL_REF NRW Simple FLOATING_POINT 0 41 MFG CYCLE_CNTR NRW Simple UNSIGNED32 0 42 MFG CYCLE_CNTR_LIM SRW Simple UNSIGNED32 4294967294 43 MFG CYCLE_CNTR_DEADBAND SRW Simple FLOATING_POINT 20 44 MFG TRAVE
52. A user will not typically view trend objects directly A host system may receive the data and build displays using the history data The Logix 3400MD digital positioner has one defined trend object 8 19 Domain Objects Description Domain objects support download services which are used to download firmware to a device Standard generic download services defined by Fieldbus Foundation are used in the domain object of the Logix 3400MD digital positioner 8 20 Device Description Device Descriptions and ODs A Device Description DD provides a clear and structured text description of a field device The descriptions found DD supplement the object dictionary definitions of device applications So an OD description used in conjunction with the DD will provide a complete detailed description of the device operation See the FF Fieldbus Specifications for more details about the usage of DDs and ODs DD Download The DD for the Logix 3400MD digital positioner can be downloaded by going to the Software Download section on the Flowserve website at www flowserve com Device Description Contents A typical DD contains information about the device parameters and operation such as e Attributes like coding name engineering unit write protection how to display etc The menu structure for listing parameters including names of menus and sub menus relationship of one parameter to others e Information about help te
53. AIN EFFECTIVE R Simple FLOATING POINT 0 40MFG PRESS CTRL MULT SRW Simple FLOATING POINT 0 05 41MFG PRESS CTRL SP SRW Simple FLOATING POINT 0 42MFG 1 VALUE GUTTOFF HYSTERESIS SRW Simple FLOATING POINT 0 43MFG CURVEX SRW Array FLOATING POINT All 21 44MFG CURVEY SRW Array FLOATING POINT All 21 45MFG STROKE TIME CAL R Simple FLOATING POINT 0 46MFG X STROKE TIME DOWN R Simple FLOATING POINT 0 47MFG STROKE TIME UP R Simple FLOATING POINT 0 48MFG HALL DOWN SRW Simple UNSIGNED16 0 49MFG UP SRW Simple UNSIGNED16 0 50MFG RANGE SRW Simple UNSIGNED16 0 51MFG AD COUNT R Simple UNSIGNED16 0 52MFG NULL SRW Simple UNSIGNED16 0 53MFG ZERO SRW Simple UNSIGNED16 0 54MFG OPEN SRW Simple UNSIGNED16 23505 55MFG RANGE SRW Simple X INTEGER32 0 56MFG AD COUNT R Simple UNSIGNED16 0 57MFG ZERO SRW Simple UNSIGNED16 0 58MFG FULL SRW Simple UNSIGNED16 1200 59MFG PORT A RANGE SRW Simple INTEGER16 1200 60MFG PORT AD COUNT R Simple UNSIGNED16 0 61MFG PORT B ZERO SRW Simple UNSIGNED16 0 62MFG FULL SRW Simple UNSIGNED16 1200 63MFG B RANGE SRW Simple INTEGER16 1200 64MFG PORT B AD COUNT R Simple UNSIGNED16 0 65MFG SUPPLY PRESS REF PSI R Simple FLOATING POINT 0 66MFG 0 COUNTER R Simple UNSIGNED32 0 67MFG PlEZO INTERVAL NRW Simple UN
54. AS is a fieldbus device which controls traffic on the network such as controlling token rotation and coordinating data publishing This fieldbus function is active in only one device at any given time on a net work Devices which can be designated as the LAS may be an operator station or a field device The Logix 3400MD digital positioner can be designated as a LAS so that in the event of a failure of the primary LAS control in the field could continue Please note that the Logix 3400MD digital positioner is not designed to be the primary LAS and therefore the LAS capability in the positioner is regarded as a backup LAS In some remote applications where there is no host computer continuously connected this device may be con figured as the primary LAS The LAS may be disabled by defining the Logix 3400MD as a Basic device in the host system or performing a factory default reset Factory default resets the positioner to a basic device 6 5 Setting Write Protect Feature Write protect Feature The Logix 3400MD digital positioner is available with a write protect feature It consists of a dip switch located on the device s electronics board that can be set to enable read only access write protect to the device s configuration When the dip switch is in the position and the corresponding device parameter is set the device s configuration parameters and calibration data can only be read or viewed device configuration is write protecte
55. BUST PID equation to be used IDEAL PID default Non Interactive form of three mode control equation that provides Proportional Integral and Derivative PID control action Linear and non linear gain parameters are available ROBUST PID The same as Ideal PID Additionally the equation supports a user configured lag filter applied to calculated output value See OUT_LAG parameter Linear and non linear gain parameters are available PID_FORM Configuration parameter specifies algorithm type which can be A B or C Type A equation where Proportional Integral and ALGO_TYPE Derivative act on ERROR Type B equation where Proportional and Integral act on ERROR and Derivative acts on PV Type C equation where Integral acts on ERROR and Proportional and Derivative act on PV Time constant of single exponential LAG filter applied to the OUT parameter primary output Units in seconds For ideal PID OUT LAG equation the lag filter is fixed at 1 16 and cannot be configured Dimensionless gain factor When the gain factor is multiplied by absolute value of the error and added to the linear GAIN the GAIN NLIN result is a gain response which is proportional to the deviation Default is zero resulting in no response due to non linear gain action GAIN COMP The composite gain quantity including both linear and non linear gain parameters Read only parameter Table 8 16 PID Parameters ERROR ABS Absolute value of the differen
56. CAL MASKING NRW Simple BIT STRING 0 16 MFG TRAVEL DISTANCE R Simple FLOATING POINT 0 17 MFG TRAVEL HIGH START RW Simple FLOATING POINT 0 18 MFG TRAVEL HIGH END RW Simple FLOATING POINT 0 19 MFG TRAVEL PERCENT YELLOW NR Simple FLOATING POINT 0 20 MFG CYCLE COUNT R Simple UNSIGNED32 0 21 MFG CYCLE HIGH START RW Simple UNSIGNED32 0 22 MFG CYCLE HIGH END RW Simple UNSIGNED32 0 23 MFG CYCLE PERCENT YELLOW NR Simple FLOATING POINT 0 24 MFG PST TIME BREAKAWAY NR Simple FLOATING POINT 0 25 MFG 5 PRESSURE DIFF R Simple FLOATING POINT 0 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 W Index Origin Name Store Date Type Default Value 26 MFG PST TIME TO TARGET NR Simple FLOATING POINT 0 27 MFG 5 RESULT R Simple UNSIGNED8 0 28 MFG TIMELIMIT RW Simple FLOATING POINT 0 29 MFG ACTUATOR RATIO RW Simple FLOATING POINT 0 30 MFG AGTUATOR RATIO HIGH START LIMIT RW lSimple FLOATING POINT 0 31 MFG AGTUATOR RATIO HIGH END LIMIT RW Simple FLOATING POINT 0 32 MFG RATIO PERCENT YELLOW NR Simple FLOATING POINT 0 33 MFG 5 001 CYCLE HIGH START LIMIT RW Simple UNSIGNED32 0 34 MFG 5 001 CYCLE HIGH END LIMIT RW lSimple UNSIGNED32 0
57. CCESS PERM 0 0 14 0 OPTS IO OPTS DO Simple STRING 0 15 STND STATUS OPTS STATUS OPTS DO SRW Simple STRING 0 16 ISTND READBACK D R Record DISC 5 0 0 17 SIND CAS IN D RWI Record DISC S Ox1C 0 18 STND CHANNEL SRW Simple UNSIGNED16 0 19 SIND FSTATE TIME SRW Simple FLOATING POINT 0 20 STND FSTATE VAL D SRW Simple X UNSIGNED8 0 21 STND BKCAL OUT D RO Record DISC 5 0 0 22 SIND RCAS IN D RW Record DISC 5 Ox1C 0 23 STND SRW Simple UNSIGNED8 0 24 STND RCAS OUT D R Record DISC 5 0 0 25 STND UPDATE EVT RW Record LARM EVENT 10 0 0 0 0 0 9 0 26 STND BLOCK ALM RW Record ALARM DISC 10 0 0 0 0 0 0 8 0 0 47 48 F LOWSE RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Nes Y The functionality of these parameters follows the standard Fieldbus definitions as defined in the Foundation Fieldbus specifications 8 10 Digital Input Function Block DI Block Description The DI block takes the manufacturer s input data selected by channel number and makes it available to other function blocks at its output This block operates according to the Foundation Fieldbus specifications Also found in Section 10 19 Table 8 11 DI Function Block Parameter List Index Origin Name Store Date Type Default Value 0 STND DISCRETE INPUT BLOCK SRW Record BLOCK 1 SIND ST REV SR Simple UNSIGNED16 2
58. D32 RES VAL MIN CYCLE T 22 STND MEMORY SIZE SR Simple UNSIGNED16 0 23 STND NV CYCLE T SR Simple UNSIGNED32 0 24 STND FREE SPACE R Simple FLOATING POINT 0 25 STND FREE TIME R Simple FLOATING POINT 0 26 STND SHED RCAS SRW Simple UNSIGNED32 640000 27 STND SHED ROUT SRW Simple UNSIGNED32 640000 28 STND FAULT STATE NR Simple UNSIGNED8 1 29 STND SET FSTATE RW Simple UNSIGNED8 1 30 STND CLR FSTATE RW Simple UNSIGNED8 1 31 STND MAX NOTIFY SR Simple UNSIGNED8 RES VAL MAX NOFITFY 32 STND LIM NOTIFY SRW Simple UNSIGNED8 RES VAL MAX NOFITFY 33 STND GONFIRM TIME SRW Simple UNSIGNED32 640000 34 STND WRITE LOCK SRW Simple UNSIGNED8 0 35 STND UPDATE EVT RW Record ALARM EVENT 0 0 0 0 0 0 9 0 36 STND BLOCK ALM RW Record ALARM DISG 0 0 0 0 0 0 0 8 0 0 37 STND ALARM SUM ALARM SUM RES2 SRW Record ALARM SUMMARY 0 0 0 0 38 STND ACK OPTION RES2 SRW Simple BIT STRING 0 39 STND WRITE PRI SRW Simple UNSIGNED8 0 40 STND WRITE ALM RW Record ALARM DISG 0 0 0 0 0 0 0 10 0 0 41 STND ITK VER NR Simple UNSIGNED16 RES VAL ITK VER 42 MFG DL CMD1 RW Simple UNSIGNED8 0 43 MFG DL CMD2 RW Simple UNSIGNED8 0 44 MFG DL APPSTATE SR Simple UNSIGNED16 0 45 MFG DL SIZE SR Simple UNSIGNED32 0 46 MFG DL CHECKSUM SR Simple UNSIGNED16 0 47 MFG REVISION ARRAY SR Array UNSIGNED16 0 0 0 0 48 MFG AUX FEATURE RW Simple BIT STRING 0 49 MFG RES BLOCK
59. DX are examples of LISTED explosionproof seals that meet this requirement Logix 3400MD digital positioners installed as explosion proof in a Class I Division 1 Group or D Hazardous Classified Locations do not require an explosion proof seal to be installed in the conduit It is recommended that all seals installed on the Logix 3400MD positioner provide an environmental seal to keep moisture from entering into User Interface chamber of the positioner NOTE Installation should conform to all national and local electrical code requirements CAUTION Do not install in a Hazardous Location without following industry guidelines Electrical Wiring Summary Verify polarity when making field termination connection The Logix 3400MD digital positioner is reverse polarity protected With a fieldbus power supply connected verify that an LED is blinking to determine if the electronics are running Only one LED will blink at any given time Refer to guidelines in FF AG 181 for proper wiring and segment checkout methods Electrical Wiring Frequently Asked Questions Question My DCS uses 24VDC can run a Logix 3400MD F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Nes Answer FF specifies 10 32V operation range fieldbus compatible power supply with terminators should be used NOTE The Logix 3400MD is driven from a voltage source not the typical 4 20 mA supply Question accidentally reversed the voltag
60. E in Logix 3400MD transducer block reflects the actual actuator position the OUT READBACK feature should be always be selected during normal operation AO Block Mode To connect the AO block input to the output the AO block must be in AUTO mode 10 9 Logix 3400MD Digital Positioner Troubleshooting Guide Table 10 12 Symptom Chart Failure or Problem Probable Cause s Refer to Section s Mounting and Installation LED won t blink 1 Input voltage not correct 1 See Electrical Wiring Summary in Sec tion 5 2 Termination may be incorrect 3 Calibration is in process Valve moves in wrong direction with no change 1 May be tubed for wrong air action 1 See Air Action in Section 6 2 Spool stuck 2 See Spool Valve instructions in Logix 3400MD Digital Positioner IOM Unit does not respond to fieldbus command 1 Unit is not configured correctly 1 See Theory of Operation on page 3 2 Error occurred during calibration 2 See Calibration in Section 9 Calibration LEDs blink RGGY after a Re Cal operation Valve 1 Configured for linear on a rotary mounting 1 See Re Cal button Section 9 stays in fully open or closed position 2 Feedback linkage out of range 1 Valve didn t fully stroke during calibration low 1 See Re Cal button Section 9 or no air supply 2 Stuck Spool 2 See Spool Valve instruction in Logix 3400MD Digi tal Positioner IOM On rotary valve has dead band at the fully 1 Mechanica
61. FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 21 SP HI LIM 4 22 SP LO LIM 4 23 GAIN 1 24 RESET 25 BAL TIME 26 RATE 27 BKCAL IN 5 28 OUT HI LIM 4 29 OUT LO LIM 4 30 BKCAL HYS 1 31 BKCAL OUT 5 32 RCAS IN 5 33 ROUT IN 5 34 SHED 1 35 RCAS OUT 5 36 ROUT OUT 5 37 TRK SCALE m 38 D 2 39 TRK VAL 5 5 40 FF VAL 5 41 FF SCALE 42 FF GAIN 1 43 UPDATE EVT 44 BLOCK ALM 45 ALARM SUM 8 8 46 ACK OPTION 2 47 ALARM HYS 7 48 HI_HI_PRI 1 49 HI HI LIM 50 PRI 1 51 HI LIM 7 52 LO_PRI 53 LO LIM 4 54 LO LO PRI 55 LO LO LIM j 56 DV_HI_PRI 57 DV HI LIM 7 58 DV LO PRI 59 DV LO LIM P 60 61 ALM 62 LO ALM FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we 63 LO_LO_ALM 64 DV 65 DV LO ALM Manufacturer Specific Parameters 66 PID FORM 1 67 ALGO TYPE 1 68 OUT LAG 4 69 GAIN NLIN 4 70 GAIN COMP 4 4 71 ERROR ABS 4 4 72 WSP 5 5 73 FUTURE1 74 BLOCK_TEST 8 Total 56 53 104 104 8 16 Alert Objects Alert objects support the reporting of alarms and update events to operator interface devices and other field devices Alert objects are used to communicate notification messages when alarms or events are detected
62. GENIM3405 02 11 13 we FINAL VALUE CUTOFF LO If FINAL VALUE is less than FINAL_VALUE_CUTOFF_LO the positioner will saturate the actuator in a closed posi tion There is a 1 percent hysteresis added so FINAL_VALUE must be more than 1 percent of FINAL_VALUE_CUTOFF_LO before the posi tioner will allow the valve to start opening This feature is disabled in SOFTSTOP_LOW is less than or equal to 0 percent FINAL_POSITION_VALUE This is the valve s stem position as sensed by the positioner This value is always reported in percent of stroke TEST_MODE This parameter is used to enable the diagnostic parameters in the Transducer Tech Block for continuous update Also this can be used to set the mode to allow write to the DAC directly to test the spool control CONTROL CONFIG These are flags used to set the configuration of the positioner e Local Panel disable allows the user to disable any button pushes or changes to be made at the device e Continuous Friction Mode Enable allows the user to enable or disable the continuous friction mode e Pressure Control Enabled allows the user to enable or disable the pressure control function e Pressure Sensor Board Present is set by the device indicating that a functioning pressure board has been installed into the device e Single Action Enabled allows the user to select between single acting and double acting PGAIN The Logix 3400MD digital positioner uses a special gain algorithm The proportional gain
63. I LIM gt OUT LO LIM SP HI LIMSP LO LIM PV SCALE 10 Verify that SP HI LIM gt SP LO LIM FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee Table 10 9 PID Function Block Parameters Parameter Initial Value Valid Range Corrective Action BYPASS 0 1 0FF 2 0N Initial value is a configuration error Set value in valid range SHED_OPT 0 1 8 see Shed Options in the FF specs Initial value is a configuration error Set value in valid range HI_HI_LIM INF i PV SCALE INF Values must be set in rank order e g LO LIM LO LO LIM but HI LIM HI LIM INF etc LO LIM INF PV SCALE INF Values must be set in rank order LO LO LIM INF 100 OUT SCALE 10 Verify that OUT HI LIM gt OUT LO LIM 109 eri OUT LO LIM 0 SP d SP HI LIM 400 PV SCALE 10 Verify that SP HI LIM gt SP LO LIM SP LO LIM 0 10 7 Additional Troubleshooting As general rule follow the suggestions for corrective action for suspected problems described this document If problem is still present perform step 1 below If the problem still persists perform step 2 and so on 1 In the resource block set the RESTART parameter to Processor Then return to run 2 Cycle power to the Logix 3400MD digital positioner 3 Re start fieldbus driver software on the host computer with the Logix 3400MD digital positioner un powered then power up the Logix
64. KTYPE LEAK CLASS VALVE FLAGS VALVE TRIMMAT VALVE TRIMCHAR VALVE TRIMTYPE Bit or Byte Values 0 1 2 3 4 99 1 2 3 4 5 6 99 0 1 2 3 4 99 0 1 2 3 4 99 0 1 2 3 99 Description Single Packing PTFE Single Packing Graphite Double Packing PTFE Double Packing Graphite Spring Loaded Other Class I Class 11 Class 111 Class IV Class V Class VI Other Flow Over Flow Under Shaft Upstream Shaft Downstream Shaft Center Other Stainless Steel Sainless Steel Hardened Alloy 6 Soft Seated Special Alloys Other Equal Percent 96 Linear Quick Open Bi Linear Other Cav Control Channel Stream High Pressure Mega Stream Standard Tiger Tooth Stealth MicroCav CavStream MultiStream SilentPack Kammer 1 11 Z Trim Multi Stage Other Logix 3400MD Digital Positioner LGENIM3405 02 11 13 LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Parameter Name Bit or Byte Values Description VALVE TRIMNO 0 10 0 12 in 2 0 13 0 15 3 0 16 0 19 in 3 0 20 0 24 in 4 0 25 0 30 6 0 31 0 37 i 0 38 0 45 in 9 5 11 4 mm 0 46 0 55 in 11 5 14 0 mm 0 56 0 67 in 14 1 17 0 mm 0 68 0 81 in 17 1 20 6 mm 0 82 0 98 in 20 7 24 9 mm 0 99 1 18 in 25 0 30 0 mm 1 19 1 42 in 30 1 36 1 mm 1 43 1 7 in 36 2 43 0 mm 1 8 2 1 in 44 54 mm 2 2 2
65. LX XDTB TECH SPOOL POSITION LX XDTB TECH SPOOL EFFORT LX XDTB TECH PIEZO OFFSET LX XDTB TECH PIEZO COMMAND LX XDTB TECH P GAIN EFFECTIVE LX XDTB TECH P GAIN MULT LX XDTB TECH D GAIN EFFECTIVE LX XDTB TECH D GAIN FILTER LX XDTB TECH PRESS CTRL GAIN EFFECTIVE LX XDTB TECH PRESS CTRL GAIN MULT LX XDTB TECH PRESS CTRL SP LX XDTB TECH FINAL VALUE CUTTOFF HYSTERESIS LX XDTB TECH STROKE TIME CAL LX XDTB TECH STROKE TIME DOWN LX XDTB TECH STROKE TIME UP LX XDTB TECH HALL DOWN LX XDTB TECH HALL UP LX XDTB TECH FB AD COUNT LX XDTB TECH HALL RANGE LX XDTB TECH HALL AD COUNT LX XDTB TECH HALL NULL LX XDTB TECH PIEZO COUNTER LX XDTB TECH PIEZO INTERVAL LX XDTB TECH HALL TGT LX XDTB TECH LX XDTB TECH FB VOLTS HALL VOLTS LX XDTB TECH 20 VOLTS LX XDTB TECH REF VOLTS LX XDTB TECH FB POSITION FILTER LX XDTB TECH LOAD EE DEFAULTS 99 100 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee 10 17 Logix 3400MD Fault States The following procedure describes hot to setup the fault states in the Logix 3400MD In the Resource block verify the Faultstate is checked in the FEATURE SEL parameter In the AO block make sure the SHED parameter is initialized correctly for your system NormalShed NormalReturn
66. L_ACCUM NRW Simple UNSIGNED32 0 45 MFG TRAVEL_ACCUM_LIM SRW Simple UNSIGNED32 0 46 MFG TRAVEL_ACCUM_DEADBAND SRW Simple FLOATING_POINT 20 47 MFG STROKE_LENGTH SRW Simple FLOATING_POINT 0 48 MFG POS_ALERT_HI SRW Simple FLOATING_POINT 110 49 MFG POS ALERT LO SRW Simple FLOATING_POINT 10 50 MFG POS_DEADBAND SRW Simple FLOATING_POINT 10 51 MFG POS_DEVIATION_TIME SRW Simple FLOATING_POINT 60 52 MFG INTERNAL_TEMP R Simple FLOATING_POINT 0 53 MFG HOURS_SINCE_LAST_POWERUP NRW Simple FLOATING_POINT 0 54 MFG HOURS_SINCE_LAST_RESET NRW Simple FLOATING_POINT 0 55 MFG HOURS LIFE TIME NRW Simple FLOATING_POINT 0 56 MFG SIG_START NRW Simple FLOATING_POINT 0 57 MFG SIG_STOP NRW Simple FLOATING_POINT 100 58 MFG SIG_RATE NRW Simple FLOATING_POINT 100 59 MFG SIG HOLD NRW Simple FLOATING POINT 10 60 MFG SIG INDEX NRW Simple UNSIGNED16 0 61 MFG SIG FLAGS NRW Simple BIT STRING 0 62 MFG TRAVEL ACCUM UNITS SRW Simple UNSIGNED8 57 63 MFG PRESSURE UNITS SRW Simple UNSIGNED8 0x06 64 MFG INTERNAL TEMP UNITS SRW Simple UNSIGNED8 0x21 65 MFG XD_FSTATE_OPT SRW Simple UNSIGNED8 0 66 MFG ELECTRONICS_SN NR Simple VISIBLE_STRING 00000000 67 MFG SOFTWARE_VER_MAJOR NR Simple UNSIGNED16 0 68 MFG SOFTWARE_VER_MINOR NR Simple UNSIGNED16 0 69 MFG SOFTWARE_DATE_CODE SRW Simple VISIBLE_STRING 70 MFG VALVE MAN ID NRW Simple UNSIGNED8 99 71 MFG VALVE MODEL
67. Link or Trend DB failed Resource block only 5 LOST 5 DATA Block Non Volatile NV memory failure Stack NV memory failure Link or Trend Object NV memory failure 6 MEMORY FAILURE Not used 7 OUTPUT FAILURE Indicates there was an output failure to the transducer block AOand DO blocks only 8 INPUT FAILURE Indicates there was an input failure to the block AO DI and DO blocks only 83 84 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Nes 9 NEEDS MAINT SOON This indicates that the device needs maintenance soon Diagnostics has indicated something is out of tolerance or is going to fail causing the positioner to possibly be operating with reduced functionality Transducer block only 10 FAULT STATE SET Indicates if the fault state has been set Resource Block only 11 LOCAL OVERRIDE Indicates if the block has gone into Local Override mode LO 12 SIMULATE ACTIVE The SIMULATE parameter is being used as the input to the AO block This occurs if the simulate jumper is set to Y on the electronics board and the ENABLE DISABLE field of the SIMULATE parameter is set to 2 13 LINK GONFIG ERR Set by the system Indicates if all the links for the block configurations are available 14 BLOCK CONFIG ERR Invalid parameter value in block See Clearing Block configuration Errors 15 OTHER Depending on the fieldbus interface application device operating status and parameter values
68. M only The custom curve will automatically be activated again when the factory curve is deselected 10 13 Initiating a Valve Signature A feature of the Logix 3400MD positioner is the ability to capture and store a valve diagnostic signature in the positioner s volatile RAM A signature is the collected data response of the valve to a pre defined set of operating conditions This stored data can later be uploaded to the host system for analysis of potential problems By comparing a baseline signature when the valve is new to subsequent signatures at later times a rate of change can be tracked which can help predict possible faults in the valve before they happen This is called predictive maintenance It is important to note that the purpose of the positioner is to act as the data acquisition device for the signature Analysis of the data is not done on the device but in the supervisory system System Preparation CAUTION By definition the collection of the signature requires the unmanaged operation of the positioner Therefore the process must be in a safe operating mode where unexpected movement of the valve will not cause a hazardous condition Before a valve signature can be run the Transducer Block must be out of service 005 95 96 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 M Table 10 16 Transducer Block Signature Parameters Parameter Description Value Meaning Com
69. MULATE parameter is enabled by setting the hardware simulation jumper to the Y position Additionally AO block SIMULATE parameter must be set to the following values SIMULATE STATUS Good alarm status constant suggested setting SIMULATE_VALUE supplied by user used as the readback input to the AO block ENABLE_DISABLE Active enabled Simulation Mode Truth Table The truth table in Table 10 11 shows the states of the simulation jumper and SIMULATE parameter to activate the simulation mode Table 10 11 Simulation Mode Truth Table When the Simulation Dip Switch and the SIMULATE Enable Disable is set to on main PCB cover is set to 1 Disabled 2 Active Off Position Simulation Disabled Simulation Disabled On Position Simulation Disabled Simulation Active Simulation Mode A simulation mode is available in the AO function block to set the value and status of READBACK when it is necessary to override the transducer value or status The SIMULATE parameter contains the following elements e SIMULATE VALUE Contains the value that is copied to the READBACK parameter e SIMULATE STATUS Contains the status that is copied to the READBACK parameter e TRANSDUCER VALUE Contains the value read from the transducer position source e TRANSDUCER STATUS Contains the status read from the transducer position source e ENABLE DISABLE Enables simulation of the SIMULATE VALUE and SIMULATE STATUS when selected Enab
70. N BLOCK TEST R 8 8 110 MAIN RESERVED 5 RW 4 4 111 EXEC DELAY SRW 2 2 112 MAIN RESERVED 6 RW 4 4 113 BLINK GODE R 1 1 Total Bytes 672 57 85 59 21 64 92 88 107 102 R Parameter is Readable Parameter is Writeable N Parameter is stored in NV RAM S Parameter is STATIC Table 8 19 0 Block View Table Index View1 View2 View3 View4 1 ST REV 2 2 2 2 2 TAG DESC 3 STRATEGY 2 4 ALERT KEY 1 5 MODE BLK 4 4 6 BLOGK ERR 2 2 7 PV 5 5 8 SP 5 5 9 OUT 5 5 10 SIMULATE 11 PV SGALE 11 12 XD SGALE 11 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 e 13 GRANT DENY 2 14 10 OPTS 2 15 STATUS OPTS 2 16 READBACK 5 5 17 CAS IN 5 5 18 SP RATE DN 4 19 SP RATE UP 4 20 SP HI LIM 4 21 SP LO LIM 4 22 CHANNEL 2 23 FSTATE TIME 4 24 FSTATE VAL 4 25 BKCAL OUT 5 26 RCAS IN 5 27 SHED OPT 1 28 RCAS OUT 5 29 UPDATE EVT 30 BLOCK ALM ManufacturerSpecificParameters 31 WSP 5 5 32 BLOCK TEST 8 Total 38 34 61 28 Table 8 20 PID Block View Table Index Name View1 View2 View3 View4 1 ST REV 2 2 2 2 2 TAG DESC 3 STRATEGY 2 4 ALERT KEY 1 5 MODE BLK 4 4 6 BLOCK ERR 2 2 7 PV 5 5 8 SP 5 5 9 OUT 5 5 10 PV SCALE 11 11 OUT SCALE 11 12 GRANT DENY 2 ZEN 14 STATUS OPTS 2 15 IN 5 16 PV FTIME 4 17 BYPASS 1 18 CAS IN 5 5 19 SP RATE DN 4 20 SP RATE UP 4
71. NED8 99 97 MFG PO DATE NRW Simple VISIBLE STRING 98 MFG INSTALL DATE NRW Simple VISIBLE STRING 99 MFG MFG PHONE NRW Simple VISIBLE STRING j 100 MFG PUR ORDER NUM NRW Simple VISIBLE STRING 7 101 MFG FINAL VALUE RANGE SRW Record SCALE 100 0 0 0 0x53e 1 102 MFG XD GAL LOC SRW Simple VISIBLE STRING 103 MFG XD CAL DATE SRW Simple VISIBLE STRING T 104 MFG XD GAL WHO SRW Simple VISIBLE STRING 105 MFG MAIN RESERVED 3 RW Simple FLOATING POINT 0 106 MFG MAIN RESERVED 4 RW Simple FLOATING POINT 0 107 MFG CONTROL CONFIG NRW Simple BIT STRING 0 108 MFG MISC CONFIG NRW Simple BIT STRING 0 109 MFG MAIN BLOCK TEST R Array UNSIGNED8 0 0 0 0 0 0 0 0 110 MFG MAIN RESERVED 5 RW Simple FLOATING POINT 0 111 MFG EXEC DELAY SRW Simple UNSIGNED16 0 112 MFG MAIN RESERVED 6 RW Simple FLOATING POINT 0 113 MFG BLINK CODE R Simple UNSIGNED8 0 Access Type NOTE How the Fieldbus board accesses the respective Control board variable e Std Standard Parameters These values are constantly updated from the Control Board except during the Signature capture e Info Device Information Parameters These values are read only at start up or when any of them are changed The number n is used to group parameters into manageable sizes e Diag Advanced Diagnostic e Parameters These values are active only when the parameter Enable diagnostic Variable Access is set i
72. Number of Bits 212 4096 Resolution is the measurement range divided by the maximum integer number 101 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 List of Figures Figure 1 1 Fieldbus Positioner Logix 3400MD Digital Positioner 10 Figure 1 2 Functional Block Diagram of Logix 3400MD Digital Positioner Operating with other Instruments 11 Figure 1 3 Logix 3400MD Digital Positioner Block Diagram 11 Figure 1 4 Fieldbus Connecting Control Room and Field Devices 12 Figure 1 5 Fieldbus Devices Contain Device Applications and Function 13 Figure 2 1 Fieldbus Network Components 14 Figure 3 1 Connecting wiring device 16 Figure 5 1 Typical Linear Actuator mounted Installation 19 Figure 5 2 Rotary Transfer Case Mounting 19 Figure 5 3 Rotary Valve with Four bar Linkage 19 Figure 5 4 Logix 3400MD Digital Positioner Mounted to a Diaphragm Actuator 20 Figure 5 5 Logix 3400MD Digital Positioner Terminal Block 21 Figure 5 6 Logix 3400MD Digital Positioner Terminal Block 22 Figure 6 1 Write protect DIP Switch Location on Main PCB Cover 26 Figure 8 1 FBAP Block Diagram Example 31 Figure 8 2 Transducer Block Diagram 37 Figure 8 3 AO Function Block Diagram 46 Figure 8 4 PID Control Block 52 Figure 10 1 Simulation DIP Switch Location on the PCB Cover 87 Figure 10 2 Gain Effect Diagram 91 Figure 10 3 Logix 3400MD Digital Positioner Characteristic Curves 94 102 FLOWSERVE o List of Tables Table 2 1 Components Requ
73. S 2 16 RESTART 17 FEATURES 2 18 FEATURE SEL 2 19 CYCLE TYPE 2 20 CYCLE SEL 2 21 MIN CYCLE T 4 22 MEMORY SIZE 2 23 NV CYCLE T 4 24 FREE SPACE 4 25 FREE TIME 4 4 26 SHED RCAS 4 27 SHED ROUT 4 28 FAULT STATE 1 1 29 SET FSTATE 30 CLR FSTATE FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee 31 MAX_NOTIFY 1 32 LIM_NOTIFY 1 33 CONFIRM_TIME 4 34 WRITE_LOCK 1 35 UPDATE_EVT 36 BLOCK_ALM 37 ALARM_SUM 8 8 38 ACK_OPTION 2 39 WRITE_PRI 1 40 WRITE_ALM Manufacturer Specific Parameters 41 DL CMD1 42 DL CMD2 43 DL APPSTATE 2 44 DL SIZE 4 45 DL CHECKSUM 2 REVISION _ 46 ARRAY 6 47 BLOCK TEST 8 48 ERROR DETAIL 6 Total 22 30 44 35 Table 8 18 Transducer Block View List Parameter Name Access Size V1 V2 V31 V32 V41 V42 143 V44 NoView 0 XDTB MAIN SRW 62 1 ST REV SR 2 2 2 2 2 2 2 2 2 2 TAG DESC SRW 32 32 3 STRATEGY SRW 2 2 4 ALERT KEY SRW 1 1 5 MODE BLK SRW 4 4 4 6 BLOCK ERR R 2 2 2 7 UPDATE EVT RW 16 16 8 BLOGK ALM RW 18 18 9 TRANSDUCER DIRECTORY NR 2 2 10 TRANSDUCER TYPE NR 2 2 11 XD ERROR R 1 1 12 COLLECTION DIRECTORY NR 4 4 13 FINAL VALUE NRW 5 5 5 14 WORKING SP RW 4 4 4 15 FINAL POSITION VALUE NR 5 5 5 16 CONTROLLER STATE STATUS R 1 1 1 17 CONTROLLER STATE MASKING NRW 1 1 1 18 POSITIONER STATUS R
74. SIGNED16 0 68MFG R Simple FLOATING POINT 0 69MFG VOLTS R Simple FLOATING POINT 0 70MFG VOLTS R Simple FLOATING POINT 0 71MFG 0 VOLTS R Simple FLOATING POINT 0 72MFG VOLTS R Simple FLOATING POINT 0 73MFG POSITION FILTER SRW Simple UNSIGNED16 0 74MFG LOAD EE DEFAULTS RW Simple UNSIGNED8 0 75MFG WRITE CYCLES NR Simple UNSIGNED32 0 76MFG GENERIG PARAMETER RW Record GENERIC 5 0 0 0 77MFG TEST RCV R Array UNSIGNED8 All 0 78MFG SPI TEST TX R Array UNSIGNED8 All 0 79MFG ECH BLOCK TEST R Array UNSIGNED8 0 0 0 0 0 0 0 0 80MFG DELAY SRW Simple UNSIGNED16 0 81MFG LX SPI STATUS FLAGS NR Simple STRING 0 82MFG X SUPPLY PRESSURE PCT R Simple FLOATING POINT 0 83MFG A PRESSURE PCT R Simple FLOATING POINT 0 84MFG B PRESSURE PCT R Simple FLOATING POINT 0 85MFG _ 5 R Array FLOATING POINT All 0 86MFG HIST R Array UNSIGNED8 All 0 87MFG CURVE SELECT SRW Simple X UNSIGNED8 0 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee Index Origin Name Store Date Type Default Value 88MFG 516 1 Array INTEGER16 All O 89MFG SIG DATA2 R Array INTEGER16 All O 90MFG DATA3 R Array INTEGER16 All O 91MFG SIG DATA4 R Array INTEGER16 All 0 92MFG DATAS R Array IN
75. T 0 24 SIND FSTATE VAL SRW Simple X FLOATING POINT 0 25 SIND BKCAL OUT RO Record FLOAT S 0 0 0 26 SIND RGAS IN NRW Record FLOAT S 0 1 0 0 27 SIND SHED SRW Simple UNSIGNED8 0 28 STND RCAS OUT R Record FLOAT S Oxcc 0 0 29 SIND UPDATE EVT RW Record ALARM EVENT 10 0 0 0 0 0 9 0 30 STND 0 ALM RW Record ALARM DISC 0 0 0 0 0 0 0 8 0 0 31 MFG WSP RW Record FLOAT S 0 0 0 32 MFG EADBACK OUT RO Record FLOAT S 0 80 0 0 MFG 0 BLOCK TEST R Array UNSIGNED8 0 0 0 0 0 0 0 0 45 46 Logix 3400MD Digital Positioner LGENIM3405 02 11 13 FLOWSERVE bu Block Diagram Figure 8 3 is a block diagram showing the key components of the AO function block D SP CAS IN en SHED RCAS T RCAS ae BKCAL OUT M OUT CONVERT ACTUAL Setpoint PV Tracking SP LO LIM SP HI LIM Status i Calculation 147 TARGET TARGET SR USE ACTUAL ACTUAL i c SP PV Track in Man SP PV Track LO IMAN SP RATE UP Ra eder EcL eec SP RATE DN ACTUAL FaultState to Value i OUT XD SCALE 2 Convert ACTUAL PV SCALE To OUT i LI 1 i i i i i i i i i i i i i
76. TEGER16 All O 93MFG SIG DATA6 R Array INTEGER16 All O 94MFG SIG DATA7 R Array INTEGER16 All O 95MFG DATA8 R Array INTEGER16 All 0 96MFG SIG DATA9 R Array INTEGER16 All 0 97MFG SIG DATA10 R Array INTEGER16 All 0 98MFG DATA11 R Array INTEGER16 All O 99MFG SIG DATA12 R Array INTEGER16 All O 100MFG SIG DATA13 R Array INTEGER16 All 0 101MFG SIG DATA14 R Array INTEGER16 All 0 102MFG SIG DATA15 R Array INTEGER16 All 0 103MFG 610 DATA16 R Array INTEGER16 All O 104MFG SIG DATA17 R Array INTEGER16 All 0 105MFG SIG DATA18 R Array INTEGER16 All 0 106MFG 516 DATA19 R Array INTEGER16 All 0 107MFG SIG DATA20 R Array INTEGER16 All 0 108MFG 610 21 Array INTEGER16 All 0 109MFG SIG DATA22 R Array INTEGER16 All 0 110MFG SIG DATA23 R Array INTEGER16 All 0 111MFG SIG DATA24 R Array INTEGER16 All 0 112MFG 516 DATA25 R Array INTEGER16 All 0 113MFG 516 DATA26 R Array INTEGER16 All O Parameter Definitions The Tech Transducer Block contains many of the parameters that are used by a technician Make sure the TEST_MODE parameter in the Main Transducer Block has been set to enable diagnostic parameters when viewing the parameter in this block P_GAIN_MULT The Logix 3400MD digital positioner uses a special gain algorithm The proportional gain increases with a decrease in error This allows for maximum resolution and speed GAIN MULT adjust the transition rate between GAIN UPPER
77. TEST R Array UNSIGNED8 0 0 0 0 0 0 0 0 50 MFG ERROR DETAIL R Array UNSIGNED16 0 0 0 Resource Block Valtek Product defined Parameter Descriptions Table 8 4 describes the Valtek product defined parameters in the resource block which are specific to the Logix 3400MD Table 8 4 Resource Block Parameter Descriptions Description or Parameter Contents DL CMD1 DL CMD2 34 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we DL_APPSTATE DL_SIZE DL_CHECKSUM A read only parameter that contains the application firmware revision level for FB Board Software Revision Byte 0 4 Future Growth Stack Revision Byte 5 FF Board NV Ram CRC LSB REVISION_ARRAY CMD Board Major Revision Byte 6 FF Board NV Ram CRC MSB CMD Board Minor Revision Byte 7 FF Board EF Results RES_BLOCK_TEST An internal Valtek product test parameter ERROR DETAIL An internal Valtek product parameter array which contains details of BLOCK_ERR conditions 8 5 Main Transducer Block Transducer Block Function The transducer block de couples or insulates function blocks from local I O devices such as sensors or actuators In the Logix 3400MD digital positioner the transducer block takes the position from the analog output block and sends it along with other parameters to the po sitioner subsystem Transducer Block Parameters Table 8 5 lists the FF and Valtek product defined param
78. TIME 4 Simple FLOATING POINT 0 26 STND RATE 4 Simple FLOATING POINT 0 27 STND BKCAL IN 5 Record FLOAT S 0 0 0 28 STND OUT HI LIM 4 Simple FLOATING POINT 100 29 STND OUT LO LIM 4 Simple FLOATING POINT 0 30 STND BKCAL HYS 4 Simple FLOATING POINT 0 5 31 STND BKCAL OUT 5 Record FLOAT 5 Oxcf 0 0 32 STND RCAS IN 5 Record FLOAT S 0 0 0 33 STND ROUT IN 5 Record FLOAT S 0 0 0 34 STND SHED 1 Simple UNSIGNED8 0 35 STND RCAS OUT 5 Record FLOAT S Oxcf 0 0 36 STND ROUT OUT 5 Record FLOAT S Oxcf 0 0 37 STND TRK SCALE 11 Record SCALE 100 0 0 0 0 0 38 STND TRK IN D 2 Record DISC 5 Ox1C 0 39 STND TRK VAL 5 Record FLOAT S 0x1C 0 0 40 STND FF_VAL 5 Record FLOAT_S 0x1C 0 0 41 STND FF SCALE 11 Record SCALE 100 0 0 0 0 0 42 STND FF_GAIN 4 Simple FLOATING POINT 1 43 STND UPDATE EVT 16 Record ALARM EVENT 0 0 0 0 0 0 0 0 44 STND BLOCK ALM 18 Record ALARM DISG 0 0 0 0 0 0 0 8 0 0 45 STND ALARM SUMJALARM SUM PID 8 Record 3 ih IMARY 0 0 0 0 46 STND ACK OPTIONJACK OPTION PID 2 Simple BIT STRING 0 47 STND ALARM HYS 4 Simple FLOATING POINT 0 5 48 STND PRI 1 Simple UNSIGNED8 0 49 STND HI HI LIM 4 Simple FLOATING POINT FLT MAX 50 STND HI PRI 1 Simple UNSIGNED8 0 51 STND HI LIM 4 Simple FLOATING POINT FLT MAX 52 STND LO PRI 1 Simple UNSIGNED8 0 53 STND LO LIM 4 Simple
79. View2 View3 and View4 are defined for each block in a device Block parameters can be grouped and displayed depending on how the data is to be used Four standard view objects groups are defined for accessing the following types of information 1 View1 used to display dynamic operation data 2 View2 used to display static operation data 3 View3 used to display all dynamic data 4 View4 used to display other static data LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Logix 3400MD Digital Positioner View Objects In the Logix 3400MD digital positioner four view objects have been defined for each of the blocks All standard blocks follow the Fieldbus defined views found in the Foundation Fieldbus specification All nonstandard blocks are shown below in the following order e Resource block e Transducer blocks e block e PID block Note Many of the transducer block parameters are not defined in the views since they are used only with the DTM provided for technician access or used only in advanced or pro mode Table 8 17 Resource Block View List Index Name View1 View2 Views View4 1 ST_REV 2 2 2 2 2 TAG DESC 3 STRATEGY 2 4 ALERT KEY 1 5 MODE BLK 4 4 6 BLOCK ERR 2 2 7 5_5 1 1 8 TEST RW 9 DD RESOURCE 10 MANUFAC ID 4 11 DEV TYPE 2 12 DEV REV 1 13 DD REV 1 14 GRANT DENY 2 15 HARD TYPE
80. Virtual Communication Relationships VCRs which are used to communicate between blocks Link objects contain infor mation needed to define communication links between function blocks and interface devices and other field devices This information may be read by an interface device which will access information in field devices For example link objects may be used to link the output parameter of one function block to the input of another block or a trend object or alert object Link objects are used for alarms and events function block linking and trending In the Logix 3400MD digital positioner links objects are available for e The PID block 6 input parameters e ThePID and AO blocks 4 output parameters e Every alert object e Every trend object Link Object for Parameter or Number of Objects Input parameters PID function block BKCAL IN CAS IN FF VAL IN TRK IN D TRK VAL AO function block OUT PID function block BKCAL OUT Output parameters OUT READBACK OUT Alert objects 3 Trend objects 2 TOTAL 16 objects 8 15 View Objects Description View objects support management and control of function blocks by providing user visibility of function block configuration and operation View objects al low parameter data to be grouped and accessed for viewing on an operator interface by the user This provides for information groups to be communicated efficiently At least four view objects View1
81. able through one of conduit entrances on either side of electronics housing Plug whichever entrance not used CAUTION The Logix 3400MD digital positioner accepts up to 16 AWG 1 5 mm diameter wire Fieldbus For reference purposes Figure 5 6 Logix 3400MD Digital Positioner Terminal Block 3 Check ground on the fieldbus cable shield Fieldbus Cable Shield Connection Normal practice for grounding a fieldbus cable segment is that the cable shield should be grounded in only one place preferably a ground point at the power supply intrinsically safe barrier or near the fieldbus interface 4 Replace end cap and tighten end cap lock 5 Connect a flat braided wire to the external ground screw of the Logix 3400MD digital positioner housing 6 Using the shortest length possible connect the other end of the braided wire to a suitable earth ground Lightning Protection The Logix 3400MD digital positioner contains moderate protection against near lightning strikes External lightning protection measures should be employed as needed Conduit Seal Logix 3400MD digital positioners installed as explosion proof in a Class 1 Division 1 Group Hazardous Classified Location in accordance with ANSI NFPA 70 the US National Electrical Code NEC require a LISTED explosion proof seal to be installed in the conduit within 18 inches of the Logix 3400MD digital positioner Crouse Hinds type EYS EYD or EYSX EY
82. age is out of operating limits Voltage must be within the limits as shown in Table 4 2 determine cause and correct on page 15 Insufficient current to device Measure DC current to device It should be between 23 If current is insufficient determine cause and and 27 mA correct More than two or less than two terminators Check to see that only two terminators are present on Correct if necessary wired to fieldbus link link Insufficient signal to device Measure the peak to peak signal amplitude it should be If signal amplitude is insufficient determine the Output 0 75 to 1 0 Vp p cause and correct Input 0 15 to 1 0 Vp p Measure the signal on the and SIGNAL terminals and at a frequency of 31 25k Hz Incorrect or Non compatible Tools If the user is using non compatible versions of fieldbus software tools such as Standard Dictionary or Device Description DD files or if the user is using the incorrect revision level of device firmware then device objects or some block objects may not be visible or identified by name SeeTable10 2 for possible causes and recommended actions Table 10 2 Device Troubleshooting B Device and or block objects not identified UNKnown or Parameters are not visible or identified by name or Flowserve defined parameters are not visible Possible cause Items to check Recommended Action Verify that the standard dictionary the DD or sym Install
83. agnostic messages can be grouped into one of these three categories 1 Non critical Failures Blink Code Starts Y Logix 3400MD digital positioner continues to calculate PV output 2 Critical Failures Blink Code Starts Logix 3400MD digital positioner drives PV output to fail safe state 3 Configuration Errors Incorrect parameter values may cause the Logix 3400MD digital positioner to generate a fault A description of each condition in each category is given in the following tables The condition is described a probable cause is stated and a recommended corrective action is given for each fault LOWSE RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we 10 3 Device Troubleshooting Device Not Visible on Network If the device is not seen on the fieldbus network the device may not be powered up or possibly the supervisory or control program is not looking for or polling the node address of that device See Table 10 1 for possible causes and recommended actions Table 10 1 Device Troubleshooting A Device not visible on network Possible Cause Items to Check Recommended Action Device may have a node address that is with Look at the following settings of the host system Set number of unpolled nodes to 0 in the unpolled range of addresses First Unpolled Node Number of Unpolled Nodes No power to the device Measure the DC voltage at the device s SIGNAL terminals If no voltage or volt
84. ameter Name Bit or Byte Values Description VALVE MAN ID Valtek Kammer NAF Other Mark Mark One X Mark 100 Mark two Mark Six Mark Eight Mark Ten ShearStream SB ShearStream HP Maxflo 3 Valdisk BX HpFlow LinedFlow TotalFlow ColdFlow DrainFlow SmallFlow CleanFlow Multi Z 020000 025000 030000 185000 FlowTop FlowPak FlowPro VariCool Setball Duball Trunnball Torex Unex Other VALVE TYPE gt LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Parameter Bit or Byte Values Description VALVE CLASS 0 25 inch DN 6 0 5 inch DN 15 0 75 inch DN 20 1 0 inch DN 25 1 25 inch DN 32 1 5 inch DN 40 Q inch DN 50 5 inch DN 65 Q inch DN 80 Q inch DN 100 0 inch DN 125 Q inch DN 150 8 0 inch DN 200 10 0 inch DN 250 12 0 inch DN 300 14 0 inch DN 350 16 0 inch DN 400 18 0 inch DN 450 20 0 inch DN 500 24 0 inch DN 600 28 0 inch DN 700 32 0 inch DN 800 36 0 inch DN 900 40 0 inch DN 1000 Other CO C VALVE CLASS VALVE ENDCON Sep Flange Intergral Flange Weld End Flangeless Wafer Glamped Screwed Other VALVE BODYMAT Alloy 20 Aluminum Bronze Carbon Steel Special Alloy Hastelloy Inconel Monel 400 Nickel Titanium Type 304 Type 316 Other 74 FLOWSERVE Parameter VALVE PAC
85. and probes for new devices Macrocycle The least common multiple of all the loop times on a given link Manufacturer s Signal Processing MSP Aterm used to describe signal processing in a device that is not defined by FF specifications Network Management NM set of objects and services that provide management of a device s communication system Network Management Agent hma Part of the device software that operates on network management objects Network Management Information NMIB A collection of objects and parameters comprising configuration performance and fault related information Base for the communication system of a device Objects Entities such as blocks alert objects trend objects parameters display lists etc Definitions and descriptions of network visible objects ofa device Various object dictionaries are contained Object Dictionary OD within a device The dictionaries contain objects and their associated parameters which support the application in which they are contained Parameters value or variable which resides in block objects 2 Integral Derivative PID Astandard control algorithm Also refers to a PID function block System Management SM Provides services that coordinate the operation of various devices in a distributed fieldbus system System Management Agent SMA Part of the device software that operates on system management objects System Management Information SMIB IA collection of objects and parameters comprising configu
86. are revision level revision level of the firmware elements Table 6 4 Logix 3400MD Digital Positioner Identification Step View Parameter Verify 1 RS DEV TYPE The value is 0x0203 DEVICE REVISION 2 DD REVISION The values are correct for the DD files provided Physical Device Tag 3 NOTE The device tag name is not contained in a parameter It can be set and The physical device tag is correct viewed using the field bus device configurator application 6 9 Configuration Tasks Device Configuration Procedure Overview A typical device configuration consists of the following tasks listed in Table 6 5 using the NI FBUS Configurator application Details on using the configurator application are found in the NI FBUS Configurator user manual supplied with the application software This procedure assumes that the hardware installation of the Logix 3400MD digital positioner is complete and the Logix 3400MD digital positioner is powered up Table 6 5 Logix 3400MD Digital Positioner Configuration Task List as Procedure art the tieldbus process application cans the fleldbus network and provides a listing of all active fleldbus devices on the networi or selected link 2 Start the fieldbus configurator application Configurator windows are displayed on screen listing the active fieldbus devices 3 Select a fieldbus device for configuration 4 Change the device and block tags if desired Any unassigned tags are given a d
87. ate Data that describes static revision alarm e Alarm summary Data that summarizes 16 alerts Simulate Float Simulate and transducer floating point value and status and a simulate enable disable discrete Test Function block test read write data Indicates the type of memory where the parameter is stored S Static Writing to the parameter changes the static revision counter parameter ST REV Store N Non volatile Parameter must be retained during a power cycle It is not under the static update code D Dynamic The value is calculated by the block or read from another block R Readable The value is readable by the host W Writeable The value is writeable by the host Default values for the block parameters These are the values that are used when Default Value the FBAP is initialized for the first time or selecting restart with defaults of the resource block parameter RESTART Performing factory reset 8 4 Resource Block Resource Block Function The resource block contains data and parameters related to overall operation of the device and the FBAP Parameters that describe the hard ware specific characteristics of the device and support application download operations make up the resource block Resource Block Parameters Table 8 3 lists the FF and Flowserve defined parameters and their default values contained in the resource block Table 8 3 Resource Block Parameters
88. ation errors and suggestions on where to look to correct the errors e Simulation mode describes how to set up the transmitter to generate a user defined simulated input This feature is useful in debugging the system when the process is not running 10 2 Overview Device Status and Failures Logix 3400MD digital positioner is constantly running internal background diagnostics to monitor the functions and status of device operation When errors and failures are detected they are reported inthe status bits of various parameters in each block object e a BLOCK ERR or ERROR DETAIL Other parameters can be viewed showing a status description and or a value which may identify a fault Device status and certain operational faults are identified by viewing the parameter status or values and interpreting their meaning using the tables in this section CAUTION Additional diagnostics may be 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 control system used Troubleshooting with the NI FBUS Configuration Tool The diagnostic messages generated by the Logix 3400MD digital positioner and block parameters can be accessed and evaluated using the NI FBUS Con figurator Troubleshooting of some Logix 3400MD digital positioner faults and corrective actions also can be performed using the configurator Fault Summary Di
89. ation is the difference between control command and stem position Deviation 75 percent 50 percent 25 percent where 50 percent is the present stem position With positive deviation the control algorithm sends a signal to move the spool upfrom its present position Asthe spool moves up the supply air is applied to the bottom of the actuator and air is exhausted from the top of the actuator This new pressure differential causes the stem to start moving towards the desired position of 75 percent As the stem moves the deviation begins to decrease The control algorithm begins to reduce the spool opening This process continues until the deviation goes to zero At this point the spool will be back in its null or balanced position Stem movement will stop Desired stem position has now been achieved One important parameter should be discussed at this point Inner loop offset or spool offset Referring to Figure 1 3 a number called inner loop offset SPOOL OFFSET is added to the output of the control algorithm In order for the spool to remain in its null or balanced position the control algorithm must output a non zero spool command This is the purpose of the inner loop offset The value of this number is equivalent to the signal that must be sent to spool position control to bring it to a null position with zero stem deviation This parameter is important for proper control and will be discussed further in the Control and Tuning section 13 Field
90. bus Overview Understanding Fieldbus Fieldbus is an all digital serial two way communication system which interconnects industrial field equipment such as sensors actuators and controllers Fieldbus is a Local Area Network LAN for field instruments with built in capability to distribute the control application across the network See Figure 1 4 Control Room Device Operator Interface lt Fieldbus LAN gt ST 3000 FF Logix 340010 Fieldbus Fieldbus Digital Positioner Device Device Figure 1 4 Fieldbus Connecting Control Room and Field Devices The Fieldbus Foundation has defined standards to which field devices and operator control stations communicate with one another The communications protocol is an open system to allow all field devices and control equipment which are builtto the FOUNDATION fieldbus standard to be integrated into a control system regardless of the device manufacturer This inter operability of devices using fieldbus technology is becoming the industry standard for automation and distributed control systems Hardware Architecture The physical architecture of fieldbus allows installation of fieldbus devices using a twisted pair cable Often existing wiring from analog devices can be used to wire up digital fieldbus devices Multiple field devices can be connected on one cable a multi drop link rather than conventional point topoint wiring used for analog devices See Wiring the Logix 3400MD Di
91. ce between PV and working set point Read only parameter WSP Working set point This is the set point value after absolute and rate limits have been applied Deviation alarms are computed on this value Read only parameter PID BLOCK TEST An internal test parameter PID Block Diagram Figure 8 4 is a block diagram showing the key components of the PID control function block FF VAL BKCAL IN Bypass BYPASS PID Control GAIN RESET BAL TIME RATE ROUT IN Feed Forward FF SCALE FF GAIN Setpoint Output SP RATE DN SP RATE UP SP HI LIM SP LO LM CAS IN OUT HI LIM OUT LO LIM BAL TIME RCAS IN SP PV Filter PV IN PV FTIME Target amp Permitted Mode GAIN GAIN COMP ERROR ABS Backward Path Outputs Mode Select SHED OPT BKCAL HYS Actual amp Normal Output Track TRK SCALE Mode TRK IN D TRK VAL Figure 8 4 PID Control Block LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 PID Block Description PID control function block is an algorithm that produces an output signal in response to the measured variable and the set point The PID function block allows the user to choose either standard PID control equation Ideal or robust PID equation defined by Honeywell This selection is defined in the PID FORM parameter The output has three terms Proportional Integral and
92. ck parameters for operator interface of views alarms and events and historical data A brief description of these objects is presented in the following sections 8 3 Block Description Block Objects Blocks are elements that make up the FBAP The blocks contain data block objects and parameters that define the application such as the inputs and outputs signal processing and connections to other applications The Logix 3400MD digital positioner application contains the following block objects Resource block Main Transducer block Tech Transducer block MD Transducer block Analog Output AO function block Digital Output DO function block Digital Input DI function block DI HI and DI LO Proportional Integral Derivative PID controller function block Input Selector IS function block Output Selector 05 function block Section 10 15 describes the funtion block execution times Table 8 1 briefly describes the operation of these blocks LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Nes j Table 8 1 Function Block Application Process Elements Block Type Function Contains data which describes the hardware physical characteristics of the device The Resource resource block does not perform any action but contains parameters that support application downloads Transducer blocks Isolate the function blocks from 1 0 devices such as sensors actuators and switches The transducer block interface
93. confirming that the first byte of the parameter is incrementing This will work if the execute rate is fast relative to the speed of reading BLOCK TEST A very slowly executing block may not appear to execute 86 because block parameters are updated only when the block executes Table 10 8 AO Block Parameters 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 enabled Set value in valid range EU 100 gt EU 0 UNITS INDEX matches output of XD SCALE 010100 transducer block Set values to valid range s GHANNEL 0 1 2 Initial value is configuration error Set value to valid range SP RATE DN SP RATE UP INF 0 15 Set value to valid range SP_HI_LIM 100 0 100 Set value to valid range SP_LO_LIM 0 0 100 Set value to valid range SHED_OPT 0 1 8 seeShedOptonsinthe Initial value is a configuration error Set value in valid range FFSpecs BYPASS 0 1 0FE2 ON Initial value is a configuration error Set value in valid range SHED OPT 0 1 BiseeShedOptionsinthe Initial value is a configuration error Set value in valid range FFspecs INF PV_SCALE INF Values must be set in rank order HLHLUMHLLM INF eg LO LIM gt LO LO LIM but lt HI LIM etc LO LIMLO LO LIM NE PV SCALE INF Values must be setin rank order OUT HI LIM 100 bim OUT LO LIM 0 OUT SCALE 10 Verify that OUT H
94. ctor Bit 10 0x0400 Bit 3 of Gain Selector Bit 11 0x0800 For Future Use Bit 12 0x1000 Quick Cal Button Not Pressed Bit 13 0x2000 For Future Use Bit 14 0x4000 For Future Use Bit 15 0x8000 For Future Use 9 Calibration 91 Introduction This section provides information about calibrating the Logix 3400MD digital positioner s sensors 92 Overview About Calibration When re calibration is required the Logix 3400MD digital positioner does not need to be removed from the process and may be calibrated in the field NOTE Calibration will cause the valve to fully stroke so calibration must not be initiated while the valve is on line in the process 78 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee CAUTION The configurator application can be used to perform the calibration procedures The software application is not a calibrated measurement source It is a digital diagnostic tool that provides verification of device parameter values Calibration Process In general calibration procedures follow these processes 1 Prepare the device Note The transducer function block must be out of service in order to perform any calibration 2 Write to CALIBRATE 3 Observe the positioner performance The calibration parameter values and calibration commands are written to the device using a fieldbus configuration application such as the NI FBUS Configurator Alternatively use the Re Cal button on the Logix 3400MD
95. d a amp ATTENTION The dip switch is factory set for read and write access not write protected position If the dip switch is in the On position the positioner must be powered down before changing the dip switch NOTE The write protect dip switch is used in conjunction with the FEATURE SEL parameter and is explained below Refer to the following steps to set the write protect dip switch 1 Remove power to Logix 3400MD 2 Loosen cap lock and unscrew the main housing cover of housing 3 za amp ATTENTION Using a ground strap or ionizer is highly recommended when handling the electronics module because electrostatic discharges can damage certain circuit components 4 Locate the dip switch on the main electronics boards in the housing 5 Set write protect dip switch to the appropriate position on the electronics board See Figure 6 1 and Table 6 1 6 Replace the cover and lock the locking screw DIP Switch Block FF Write Protect Dip Switch Figure 6 1 Write protect DIP Switch Location on Main PCB Cover FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee Table 6 1 Write Protect dip Switch Settings To Set the Dip Switch to Enable read and write access to the device s configuration Factory set Off On Off position on the dip switch default Eg Off Enable read only access to device
96. d on the configured action This block normally receives its inputs from Al blocks The block performs maximum minimum middle average and first good signal selection With a combi nation of parameter configuration options the block can function as rotary position switch or validated priority selection based on the use of the first good parameter and the disable n parameter As switch the block can receive switching information from either the connected inputs or from an operator input The block also supports the concept of middle selection Although the normal configuration for this feature would be with three signals the block should generate an average of the middle two if four signals are configured or the average of two if three are configured and bad status is passed to one of the inputs Logic is provided for handling uncertain and bad signals in conjunction with configured actions The intended application of this block is to provide control signal selection in the forward path only therefore no back calculation support is provided SELEGTED is second output that indicates which input has been selected by the algorithm FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Nes Table 8 12 IS Function Block Parameter List Index Origin Name Store Date Type Default Value 0 STND INPUT SELECTOR SRW Record BLOCK 0 1 SIND ST REV SR Simple
97. dation registered device type to designate what kind of device it is Make sure the device type is correct for the unit e REV This is the current revision of the device e REV This is the required DD revision level for this device Make sure the DD supports this revision level An improper DD may cause unexpected operation or inability to use certain features The DD files used with the host have names derived from DEV_REV and DD_REV as follows lt DEV_REV gt lt DD_REV gt ffo lt DEV_REV gt lt DD_REV gt sym Example IF DEV REV is 0x01 and DD REV is 0x03 then the DD files would be 0103 ffo and 0103 sym In addition to these Fieldbus Foundation specified parameters some manufactures may add additional device version information The ex ample below is of the resource block for a Flowserve Logix 3400MD digital positioner The revision array is an optional resource parameter but gives additional information about the internal firmware code versions This array resides at the bottom of the parameter listing LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee MANUFAC_ID This should always equal Flowserve or 0x464c53 4607059 DEV TYPE This will be 0x0203 515 This indicates the device is a Logix 3400MD digital positioner DEV_REV This is the revision level of the device DD_REV This is the revision level of the DDs REVSION_ARRAY Contains four elements These should be viewed in decimal Eleme
98. dditional noise suppression as well as protection against lightning and static discharge damage Note that grounding may be required to meet optional approval body certification Intrinsically Safe Applications Fieldbus barriers should be installed per manufacturer s instructions for Logix 3400MD digital positioners to be used in intrinsically safe ap plications The Logix 3400MD digital positioner carries an intrinsically safe barrier rating of 125 mA Currents up to 125 mA will not damage the device The number of field devices on segment may be limited due to power limitations in hazardous area installations Special fieldbus barriers and special terminators may be required Also the amount of cable may be limited due to its capacitance or inductance per unit length Detailed Intrinsically Safe Information Refer to Fieldbus Foundation document AG 163 31 25 kbit s Intrinsically Safe Systems Application Guide for detailed information on connect ing fieldbus devices for intrinsically safe applications Logix 3400MD Digital Positioner Wiring Procedure The following procedure shows the steps for connecting fieldbus cable to the Logix 3400MD digital positioner GAUTION All wiring must comply with local codes regulations and ordinances 1 Loosen end cap lock and remove end cap cover from terminal block end of positioner housing 21 22 F LOWSE RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee 2 Feed fieldbus c
99. e complete cycle of the function block schedule in a device The macro cycles of all devices on the link are synchronized so that function block executions and their corresponding data transfers are synchronized in time Using the configurator software the device s function block schedule can be pre configured Function Block Scheduling Objects Four scheduling objects are defined in the Logix 3400MD digital positioner Table 8 25 lists the function block scheduling objects with their object directory index and default values Table 8 25 Function Block Scheduling Objects FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee Object Description OD Index Default Value VERSION OF SCHEDULE The version number of the function block schedule 275 0 START TIME OFFSET FBScheduleEntry 1 Default setting is the AO block 276 OFB_OBJECT_INDEX 257 VFD REF 1 START TIME OFFSET 16000 FBScheduleEntry 2 Default setting in the PID block 277 FB_OBJECT_INDEX 310 VFD REF 1 FBScheduleEntryZ3 278 OxFFFFFFFF FBScheduleEntry 4 Available 279 0 8 23 Network Management Network management provides for the management of a device s communication system by an external network manager application Network management operates on special objects in the Network Management Information Base NMIB which is part of the Management Virtual Field Device VFD Network Management Features Network Management provides the follow
100. e Relative Humidity e Potential Noise Sources e Radio Frequency Interference RFI e Electromagnetic Interference EMI e Vibration Sources e Pumps e Motorized Valves e Process Characteristics e Temperature e Maximum Pressure Rating Relative Humidity amp Lightning EMI Ambient Temperature Large Fan Motors EMI amp Q 3 Process Temperature Radiated WM Figure 4 1 Typical Mounting Area Considerations Prior to Installation 17 18 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we Temperature Limits Table 4 1 lists the operating temperature limits for Logix 3400MD digital positioner Table 4 1 Operating Temperature Limits Ambient Temperature Electronics Ratings for For Intrinsically Safe Explosion proof Ap Mechnical Rating Applications plications Logix 3400MD digital positioner 52 to 60 61 140 52 to 85 40to 131 40to 80 40to 176 Power Requirements The Logix 3400MD digital positioner is a bus powered two wire device meaning that it receives its power from the VDC on a fieldbus wiring segment Certain guidelines and limitations exists regarding the wiring of fieldbus devices See Section 5 4 for more information on wiring the device Table 4 2 lists the operating power requirements for the Logix 3400MD digital positioner Table 4 2 Logix 3400MD Power Requirements Static P atic Power 10 VDC Q 23mA 32 VDC Q 23mA A
101. e cycle endurance Even though this is a very high number that would typically never be reached during the operational life of the device a misbehaving host configuration routing could drive up the number of write cycles very quickly and should be corrected as all devices in the configuration will be adversely affected by this continuous download 8 7 Transducer Block The MD Transducer block contains the parameters used by the advanced and pro model of the Logix 3400MD These parameters are used for diagnostics and error detection of the system Table 8 8 Transducer Block Parameters Index Origin Name Store Date Type Default Value 0 STND XDTB MD SRW Record BLOCK 0 1 STND ST REV SR Simple UNSIGNED16 1 2 STND TAG DESC SRW Simple OGTET STRING 7 3 STND STRATEGY SRW Simple UNSIGNED16 2 4 STND ALERT KEY SRW Simple UNSIGNED8 4 5 STND MODE SRW Record MODE 0x01 0x01 0x11 0x10 6 STND BLOCK ERR R Simple BIT STRING 0 7 STND UPDATE EVT RW Record ALARM EVENT 0 0 0 0 0 0 0 0 8 BLOCK ALM RW Record ALARM DISC 0 0 0 0 0 0 0 0 0 0 9 STND TRANSDUGER DIRECTORY NR Array UNSIGNED16 0 10 STND TRANSDUCER TYPE NR Simple UNSIGNED16 106 11 STND XD ERROR R Simple UNSIGNED8 0 12 STND COLLECTION DIRECTORY NR Array UNSIGNED32 0 13 MFG MD MODE R Simple UNSIGNED8 0 14 MFG MECHANICAL STATUS R Simple BIT STRING 0 15 MFG MECHANI
102. e present command signal is at 50 percent If the command signal is decreased the positioner will follow the command until it reaches 5 percent At 5 percent the spool will be driven in order to provide full actuator saturation The positioner will maintain full saturation below 5 percent command signal Now as the command increases the positioner will remain saturated until the command reaches 6 percent remember the 1 percent hysteresis value added by the positioner At this point the stem position will follow the command signal Question have FINAL_VALUE_CUTOFF_LO set to 3 percent but the valve will not go below 10 percent Answer Is a lower soft limit enabled The lower soft limit must be less than or equal to 0 percent in order for the to become active If soft stops are active SOFTSTOP_LOW gt 30 SOFTSTOP HIGH 100 FINAL VALUE Hlor LO is disabled Position Alerts Position alerts notify the user that the valve has traveled past a configured limit The default settings are 10 percent and 110 percent which are outside normal travel and therefore disabled Position alerts only notify the user that a limit has been exceeded and do not limit stem movement Position alerts will cause a green LED code to blink Soft Limits Unlike position alerts soft limits SOFTSTOP LOW SOFTSTOP HIGH prevent the stem position from going below or above the configured limits If the com mand signal is trying to drive the position past one of the
103. e supply across the Logix 3400MD digital positioner Howdo I know if I damaged something Answer The Logix 3400MD is non polarized Inadvertent connection of the fieldbus supply shouldn t damage the unit Question What is the input resistance of the Logix 3400MD digital positioner Answer The Logix 3400MD digital positioner does not have a simple resistive input This is because the Logix 3400MD digital positioner is an active device The fieldbus specifications dictate that the input impedance cannot be less than 3k ohms This will vary according to frequency of the fieldbus communica tions Typical power requirements are 23 mA Q 10 32 VDC NOTE The user cannot measure across the terminals of an un powered Logix 3400MD digital positioner and get the effective resistance It is an impedance device not a resistive device 5 4 Powering Up the Logix 3400MD Digital Positioner Pre power Checklist e Before applying power to the fieldbus network the user should make the following checks e Verify that the Logix 3400MD digital positioner has been properly mounted and connected to a system e TheLogix 3400MD digital positioner has been properly wired to a fieldbus network e The Logix 3400MD digital positioner housing has been properly connected to a suitable earth ground e operator station or host computer has been installed and connected to the fieldbus network NOTE If the user wants to enable the write protect feature or change the
104. ear function of some portion of the input Back calculation support is provided using the same linear function in reverse Cascade initialization is supported by a decision table for combinations of input and output conditions This block would normally be used in split ranging or sequencing of multiple valve applications A typical split range application has both valves closed when the splitter input is 5096 One valve opens fully as the input drops to 0 The other valve opens as the input rises above 5096 A typical sequencing application has both valves closed at 0 input One valve opens fully as the input rises to 5096 and the other stays shut The second valve opens as the input rises above 5095 and the first valve may remain open or shut off quickly Because this block is in the control path it is able to pass limit and cascade initialization information back to the upstream block Table 8 13 OS Function Block Parameter List Index Origin Name Store Date Type Default Value 0 STND OUTPUT_SPLITTER SRW Record BLOCK 1 SIND ST REV SR Simple UNSIGNED16 0 2 SIND TAG DESC SRW Simple 0 STRING z 3 SIND STRATEGY SRW Simple UNSIGNED16 0 4 SIND ALERT KEY SRW Simple UNSIGNED8 0 5 SIND MODE SRW Record IMODE 0 01 0 01 0 31 0 10 6 SIND BLOCK ERR R Simple STRING 0 7 SIND SP RW Record 5 0 0 0 50 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405
105. ects Table 8 2 explains the column headings for the parameter listings 32 FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we Table 8 2 Block Parameter List Column Description Column Name Description A number that corresponds to the sequence of the parameter in the block parameter segment of the object dictionary See ndex i n A Object Dictionary Section 8 16 Origin STND Standard Fieldbus Parameter defined in FF specifications MFG Enhanced Parameter Manufacturer defined Name The mnemonic character designation for the parameter Data type or structure for the parameter value 1 Data types consist of simple variables or arrays and are Unsigned8 Unsigned16 Unsigned32 An unsigned variable of 8 16 or 32 bits Floating point Floating point variable Visible string Visible string variable Octet string Octet string variable Bit string Bit string variable 2 Data Structures consist of record which may be Value and Status float Value and status of a floating point parameter Data Type Structure Scaling Static data used to scale floating point values for display purposes Mode Bit strings for target actual permitted and normal modes e Access permissions Access control flags for access to block parameters e Alarm float Data that describes floating point alarms e Alarm discrete Data that describes discrete alarms Event upd
106. efault tag name by the configurator 5 Select add edit function blocks to create a function block Shows a representation of function blocks in the graphical interface window application process NOTE Configure block objects in the following order 1 Resource block 2 Transducer block 3 Analog Output block 4 PID block 6 Connect or wire function blocks to define process loops Linkages between function block inputs and outputs are created by using wiring tools configured templates can also be used Change block parameters if necessary Parameters changed for the process requirements Configure trends and alarms Trending and alarms configured according to the process requirements 9 Adjust the block execution schedule The function block execution schedule changed according to the process requirements FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee 10 Write configuration to the fieldbus network Nr changes are sent to the appropriate fieldbus devices on the 11 Save the device configuration to disk VAM the device configuration file is saved on the hard disk of the computer or 7 Operation 7 1 Introduction This section outlines the tasks for operating and monitoring the Logix 3400MD digital positioner on a fieldbus network Refer to the Logix 3400MD Digital Positioner Start up Guide for additional information 7 2 Operation Tasks Fieldbus Device Operation
107. eger count is then used by the micro controller to process information such as position pressure and temperature D A Also called DAC or digital to analog converter A D A converts an integer count into an analog output signal The D A is used to take a number from the micro controller and command an external device such as a pressure modulator EEPROM Electrically Erasable Programmable Read Only Memory A device which retains data even when power is lost Electrically erasable means that data can be changed EEPROM limited number of times data can be re written Micro controller In addition to an integral CPU microprocessor the micro controller has built in memory and 1 0 functions such as A D and D A Microprocessor Semiconductor device capable of performing calculations data transfer and logic decisions Also referred to as CPU Central Processing Unit Protocol A set of rules governing how communications messages are sent and received PV Primary Variable or Process Variable Resolution Resolution is a number which indicates the smallest measurement which can be made You will often see Analog to Digital A D converters referred to as a 10 bit A D or a 12 bit A D 10 bit and 12 bit are terms which indicate the total number of integer counts which can be used to measure a sensor or other input To determine the total integer count raise 2 to the power of the number of bits Example 12 bit A D Total integer number 2
108. ements that make up the configuration of the device application For More Information on FBAP The FBAP elements are described as they apply to the Logix 3400MD digital positioner in the following sections More detailed information can be found in Fieldbus Foundation documents FF 890 and FF 891 Foundation Specification Function Block Application Process 8 2 Function Block Application Process Introduction The FBAP comprises a set of elementary functions which are modeled as function blocks Function blocks provide a general structure for defining different types of device functions such as analog inputs analog outputs and PID control The FBAP also contains other objects that provide other device functions such as furnishing alarm information historical data and links to other blocks for transferring data FBAP Elements 29 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we The key elements of the FBAP are e Logix block objects and their parameters and consist of the following block types e Resource block e Transducer blocks e PID Function block e Function block e Function block e Function block e S Function block e 05 Function block e Link Objects e Alert Objects e Objects e View Objects e Domain Objects Device Objects Link objects allow the transfer of process data from one block to another View Alert and Trend objects handle function blo
109. entposition 5Opercent previous 30percentmovementx4 inchstroke 1 2 inches LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee So 1 2 inches is added to the travel accumulator New dead band thresholds of 100 percent 80 percent present position plus 20 percent dead band and 60 percent 80 percent present position minus 20 percent dead band are calculated This process continues as the stem position moves throughout its stroke range Cycle Counter The cycle counter is another means of monitoring valve travel Unlike the travel accumulator the stem position must do two things to count as a cycle exceed the cycle counter dead band and change direction A cycle counter limit can also be written into the positioner If this limit is exceeded the LEDs will blink Green Red Green Green Position Deviation If the stem position differs fromthe control command by a certain amount for a given length of time the LED s will blink Red Red Red Red to signify excess deviation The trip point and settling times are set in the transducer block 8 18 Trend Objects Trend objects support the management and control of function blocks by providing access to history information Trend objects provide for short term history data to be collected and stored within a resource The collected data may be input and output parameters and status infor mation from selected function blocks Trend objects are available anytime for reading
110. essure sensors These sensor readings and alarms are only accessible from the communicator when the configuration has been set to Advanced Loss of Pressure The loss of pressure alarm becomes active when the supply pressure is near the minimum positioner operating pressure of 30 psig The LEDs will blink Red Yellow Yellow Green This alarm is meant to alert the user to low supply pressure as well as complete loss of pressure Top Sensor Bottom Sensor Each sensor is checked during actuator calibration If a calibration reading appears to be out of range the appropriate alarm will become active The pressure sensors are located on the collector board assembly Internal Positioner Alerts FINAL VALUE CUTOR HI ANAL VALUE CUTOFF_LO The MPC or tight shutoff feature of the Logix 3400MD digital positioner allows the user to control the level at which the command signal causes full actuator saturation in the closed or open position This feature can be used to guarantee actuator satura tion in the closed or open position or prevent throttling around the seat at small command signal levels To enable use configuration to apply the desired MPC threshold Note The positioner automatically adds a 1 percent hysteresis value to the MPC setting to prevent jumping inand out of saturation when the command is close to the MPC setting Question set the FINAL_VALUE_CUTOFF_LO at 5 percent How will the positioner operate Answer Assume that th
111. et by SM mgr during address assignment Device ID Tag Name and Device Address Each fieldbus device on the network is uniquely identified by e ID that is set by the manufacturer to identify the device e Device Name Tag set by the user to identify operation e Device Address a unique numerical address on the fieldbus segment Address may be set automatically by system management Address Assignment Objects Table 8 24 is a description of the address assignment objects with their object directory index and default values Table 8 24 SM Address Assignment Objects Object Description OD index Default Value 4646530201 VAL LX1 DEV ID The device ID set by the manufacturer 270 400 Onnnnnnnn PD_TAG The physical device tag to be set using SET_PD_TAG service 271 All Spaces elg Controls the state of SM of the device upon power up 272 TRUE SM goes operational after power up Virtual Field Device VFD List Objects Two objects identify the VFDs in the device Table 8 25 Virtual Field Device VFD List Objects OD Index VFD REF VFD TAG 273 1 MIB 274 2 Resource Function Block Scheduling The SMIB contains a schedule called the function block schedule that indicates when that device s function blocks are to be executed System Management schedules the start of each function block relative to the macro cycle of the device The macro cycle represents on
112. eters and their default values in the transducer block The main transducer block contains themost widely used parameters for general operation and ID Table 8 5 Main Transducer Block Parameters Index Origin Name Store Date Type Default Value 0 STND XDTB MAIN SRW Record BLOCK 0 1 STND ST REV SR Simple UNSIGNED16 1 2 STND TAG DESC SRW Simple OGTET STRING 7 3 STND STRATEGY SRW Simple UNSIGNED16 2 4 STND ALERT KEY SRW Simple UNSIGNED8 4 5 STND MODE BLK SRW Record MODE 0x01 0x01 0x11 0x10 6 STND BLOCK ERR R Simple BIT STRING 0 7 STND UPDATE EVT RW Record ALARM EVENT 0 0 0 0 0 0 0 0 8 STND BLOCK ALM RW Record ALARM DISC 0 0 0 0 0 0 0 0 0 0 9 STND TRANSDUGER DIRECTORY NR Array UNSIGNED16 0 10 STND TRANSDUGER TYPE NR Simple UNSIGNED16 106 11 STND XD ERROR R Simple UNSIGNED8 0 12 STND COLLECTION_DIRECTORY NR Array UNSIGNED32 0 13 STND FINAL VALUE NRW Record FLOAT S 0x80 0 0 14 MFG WORKING SP RW Simple FLOATING POINT 0 15 MFG FINAL POSITION VALUE NR Record FLOAT S 0x80 0 0 16 MFG CONTROLLER STATE STATUS R Simple BIT STRING 0 17 MFG CONTROLLER STATE MASKING NRW Simple BIT STRING 0 18 MFG POSITIONER STATUS R Simple BIT STRING 0 19 MFG POSITIONER_MASKING NRW Simple BIT_STRING 0 20 MFG DEVIATION_VALUE R Simple FLOATING_POINT 0 21 MFG PRESSURE SUPPLY R Simple FLOATING POINT 0 22 MFG PRESSURE PORT
113. evice firmware Non functioning Blocks Device block objects may not be running executing their function block schedules or the blocks may be in Out of Service 00S mode For example if the AO function block is in 005 mode the block will not provide updated output values although the AO block may be running When troubleshooting non functioning block objects start with the resource block For example if the resource block is in 005 mode all other blocks in the device will also be 005 mode See Table 10 3 for possible causes and recommended actions Table 10 3 Device Troubleshooting C Symptom Device output is not updating Possible Cause Resource block mode is 005 Items to Check Read MODE BLOGK ACTUAL of Resource block Recommended Action If necessary set MODE BLOGK TARGET to Auto Resource block is not running Incorrect revision of block firmware resource Read the first element of BLOCK TEST Number should be increasing indicating that block is running If block is not run ning check the second element of BLOCK TEST Check BLOCK ERR for other errors If an error is present in BLOCK ERR then read ERROR DE TAIL Read DEV DEV REV and DD REV If second element of BLOCK TEST is not zero write all zeroes to element See Sub section 10 7 for details on BLOCK ERR Set RESTART to processor or 4 to soft restart the device See Incorrect or non compat
114. form or execute their specific functions according to a schedule This schedule provides the sequence and timing of events which occur within a device and also between other fieldbus devices This schedule is coordinated with the function block execution schedules in the device and other fieldbus devices on the network Additional information on the FBAP contained inthe Logix 3400MD digital positioner is found in Section 8 Device Configuration LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Fieldbus Configuration Application The Logix 3400MD digital positioner is configured using fieldbus configuration application running on operator station or host computer The configuration tool allows the user to Gonnect function block inputs and outputs according to the process requirements changes to function block parameters according to the process requirements e changes to the schedule of function block execution e Write the FBAP changes to the device Mechanical Configuration Issues Air Action Air to open and Air to close are determined by the actuator tubing not the software When air action selection is made during configuration the selection is telling the control which way the actuator is tubed The tubing should be verified as correct prior to a stroke calibration The top output port on the positioner is called port 1 It should be tubed to the increase open side of the actuator That
115. g Guidelines AG 181 Function Block Application Process parts1 amp 2 FF 890 FF 891 Contained in the User Layer Specification FF 002 Fieldbus Specifications Various Documents Technical Assistance If the user encounters a problem with the Logix 3400MD digital positioner the configuration of the Logix 3400MD digital positioner should be checked to verify that all selections are consistent with the application If the problem persists call your local Flowserve representative or Flowserve Digital Products support listed in the contact information at www valvesight com Do not return a Logix 3400MD digital positioner without authorization from Flowserve Product Technical Assistance or until an RGA Return Goods Autho rization has been issued by Flowserve Fieldbus Device Version Checking To assure the proper operation of the fieldbus device always make sure the DDs loaded in the host configurator s library are the correct ones for the hardware version Several different hardware versions of your fieldbus devices can possibly reside on various segments at the same time Fieldbus Foundation has provided a means to tell which version of DD is needed for a particular device in its resource block The resource block contains the following standard parameters e MANUFAC ID This contains the manufacture s Fieldbus FoundationOregistration ID number Make sure this number matches the device used e DEV TYPE This is the Foun
116. gital Positioner to a Fieldbus Network Software Architecture Fieldbus software architecture provides for more control functions to be available in the microprocessor based field device Since fieldbus is a digital com munication system more data is available to operators for process monitoring trend analysis report generation and trouble analysis Device software changes can be downloaded to field devices remotely from the operator station or PC in the control room LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Application An application is software that contains function block data and operating parameters objects which help define the operation of device such as sensor data acquisition or control algorithm processing Some devices may contain more than one application Function Blocks Usually a device has a set of functions it can perform These functions are represented as function blocks within the device See Figure 1 5 Function blocks are software that provide a general structure for specifying different device functions Each function block is capable of performing a control function or algorithm Device functions may include analog input analog output and Proportional Integral Derivative PID control These blocks can be connected together to build a process loop The action of these blocks can be changed by adjusting the block s configuration and operating parameters Fieldbus Device
117. h may be write restricted based upon the block s mode Listed in the table are the TARGET and or ACTUAL modes required for the write to be accepted Other limitations listed in the last column must also be met SIMULATE READBACK and PV Determination In the AO Function Block these three parameters provide the values and status of the actuator position where SIMULATE or optionally OUT generates the READBACK parameter and READBACK is then re scaled to produce the PV The following sub sections describe each of these parameters SIMULATE Parameter SIMULATE is the interface parameter between the AO and the Transducer Function Blocks Each time the AO block ex ecutes SIMULATE TRANSDUCER is updated with the FINAL POSITION VALUE from the transducer block When the SIMULATE ENABLE is FALSE SIMULATE TRANSDUCER is copied into SIMULATE SIMULATE When SIMULATE ENABLE is TRUE SIMULATE SIMULATE is not updated with SIMULATE TRANSDUCER and the user may write a value and status to SIMULATE SIMULATE LOWSE RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 J NOTE SIMULATE ENABLE can only be set TRUE when the Simulate dip switch is in the On position when the device is powered up or a pro cessor restart is issued READBACK Parameter The value and status of READBACK will come from either the OUT parameter or SIMULATE SIMULATE determined by the state of the OUT READBACK feature in the Resource Block READBACK is in XD units When
118. h the tasks in this section the Logix 3400MD digital positioner must be installed and wired correctly The user should be somewhat familiar with the fieldbus configuration If the Logix 3400MD digital positioner has not been installed and wired or if the user is not familiar with device configuration and or does not know if the Logix 3400MD digital positioner is configured please read the other sections of this manual before configuring the Logix 3400MD digital positioner 6 2 Logix 3400MD Digital Positioner Communications Communications and Control All communications with the Logix 3400MD digital positioner is through an operator station or host computer running supervisory control and monitoring applications These applications provide the operator interface to fieldbus devices and the fieldbus network Configuration Applications CAUTION Configuration of the Logix 3400MD digital positioner for the process application is performed also through the operator interface operator station or PC running a fieldbus configuration software application A number of applications are available for the user to configure fieldbus devices The examples presented in this manual refer to the NI FBUS Configurator application Software Compatibility The NI FBUS Configurator application version specified in Section 1 1 is fully compatible with all Valtek control products with FOUNDATION fieldbus com munications option 6 3 Logix 3400MD Digital Positioner C
119. ible Probable Cause Missing or incorrect version of device description file on host computer Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Recommended Action 1 Check path to device description 2 Load correct version of DD Unable to write successfully to MODE BLK of any block Mode not supported in TARGET and or PERMITTED modes for the given block Verify that the mode being written is supported by the block f writing TARGET mode only then the desired mode must already be set in the PERMITTED field f writing the whole MODE BLK record then the mode set in TARGET must also be set in the PERMITTED field Other modes may also be set in the PERMITTED field but target mode must be set Unable to write to a parameter 1 Parameter is read only nm Sub index of the parameter is read only Some parameters have fields that are not writable individually such as MODE BLK ACTUAL 1 None 2 None Write locking is active Resource block parameter WRITE LOCK value is 2 4 Corresponding block is in the wrong mode Some parameters can only be written to in 005 mode only or in 005 or manual modes c Data written to the parameter is out of the valid range for that parameter 3 Remove write protect jumper see Subsection 6 5 4 Write valid mode to MODE BLK parameter of block 005 or MAN modes See Mode Restricted Writes to Parameters in Sub sections 8 6 and 8 7
120. ible tools above in Sub section 10 3 Incorrect revision level of the de vice firmware Read REVISION ARRAY See Incorrect or non compatible tools above in Sub section 10 3 Transducer block mode is 005 Read MODE BLK ACTUAL Set MODE BLK TARGET to auto NOTE Transducer block must be in AUTO mode for the sensor signal to be passed to AO block Transducer block is not producing valid primary data 1 Read the first element of BLOCK TEST Number should be increasing indicating that block is running If block is not run ning check the second element of BLOCK TEST 2 Read BLOCK ERR 3 Verify parameter FINAL VALUE is not valid STATUS good or uncertain VALUE active 4 Read FINAL POSITION VALUE should contain the posi tion Isolate valve from process and check calibration If second element of BLOCK TEST is not zero write all zeroes to element See Sub section 10 7 for details on BLOCK ERR Report information to factory Analog Output block mode is 00S Read MODE BLK ACTUAL of AO block Set MODE BLK TARGET to auto AO block is not initialized 1 CHANNEL 1 Set to 1 2 SHED 2 Set to a value other than Un initialized PID block is not initialized SHED OPT Set to a value other than uninitialized PID block mode is 00S Read MODE BLK ACTUAL of PID block Set MODE BLK TARGET to Auto PID block is not running Read the first element of BLOCK TEST Number
121. ieldbus power supply to furnish power to the device the user can read and write parameters in the Logix 3400MD digital positioner 1 Connect fieldbus cable to junction block fieldbus interface card to the fieldbus network CAUTION Observe polarity of fieldbus cable throughout the network 2 Loosen end cap lock and remove end cap cover from terminal block end of positioner housing 3 The Logix 3400MD is not polarity sensitive Connect either wire to either terminal screw 15 16 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 e Fieldbus Figure 3 1 Connecting wiring device 4 At the junction block connect a fieldbus terminator in parallel with the device 5 Connect a power supply power conditioner if needed and a fieldbus terminator to the fieldbus cable INote Do not connect the shield at the device connect only at the marshalling cabinet 6 Turn on PC T Turn on power supply 8 Start fieldbus configuration application on PC 9 Establish communications Once communications have established between the Logix 3400MD digital positioner and the PC the user can then query the Logix 3400MD digital positioner Assign Bus Address and Device Tag Check the device ID of the Logix 3400MD digital positioner and assign a network node address to the device and assign tag names to the device Note that the Logix 3400MD digital positioner is shipped with default node addresses and tag na
122. ine The stored signature will remain in the Logix 3400MD digital positioner NON volatile RAM until the either the unit is reset or another signature is taken which overwrites the previous one 13 Return the MODE BLK to Auto 97 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee STEP SIGNATURE If a step signature was desired simply do not select STEP RAMP SIG FLAGS and then set the STEP TIME prior to selecting BEGIN SIG Collection of Stored Signature The collection of the stored signature is accomplished by the host system It is not part of the device See host system programming A simple utility using National Instruments NIFBUS is available from Flowserve for retrieving a signature file This file is stored in a text format that can be imported into other programs for plotting and analysis Contact Flowserve for more details Retrieve a Signature After a signature has been run the data is stored on the Logix 3400MD device Because of the amount of data in a signature it has to be retrieved from the device To retrieve this data it is recommended that you use the valvesight DTM However you can also retrieve the raw data view it in the parameters XDTB TEGH SIG DATA1 SIG DATA26 To retrieve this data using the parameters you can simply write a non zero value to the parameter XDTB MAIN SIG INDEX When you do this you will see this parameter start changing and the signature data can then be viewed in the
123. ing features Loading a Virtual Communication Relationship VCR which may be a list or a single entry See VCR list objects e Loading changing the communication stack configuration e Loading the Link Active Schedule LAS e Performance monitoring Network Management Objects CAUTION Normally most of the network management objects appear transparent to the user In other words the parameters and objects used for network management are not normally viewed or changed as part of device configuration The network management objects in the Logix 3400MD digital positioner FBAP are listed in the following paragraphs although most if not all of these objects are not directly user configured Network Management Information Base NMIB The NMIB contains various objects that are associated with network management operation Table 8 28 lists the NMIB object dictionary The groups of network management objects along with their index starting numbers are included in the NMIB for the Logix 3400MD digital positioner The numbers in parenthesis indicate the number of objects Virtual Communications Reference VCR Objects The objects listed above contain parameters which define network management operations These operations include communications between applica tions in different field devices or field devices and operator interface In order for this communication to take place a communications relationship must be set up using the network ma
124. ir Supply Requirements The Logix 3400MD digital positioner requires an external air filter preferably the Valtek coalescing air filter The air supply should conform to ISA Standard 57 3 with a dew point at least 18 F 10 C below ambient temperature particle size below one micron and oil content not to exceed one part per million For a model with advanced or pro diagnostics Logix 341X or 342X digital positioner the internal pressure sensors are rated for continuous operation up to 150 psig Minimum supply pressure for proper operation is 30 psig Use of a regulator is highly recommended as it aids in the use of the diagnostics feature 9 Logix 3400MD Digital Positioner Installation 5 1 Introduction This section provides information about the mechanical and electrical installation of the Logix 3400MD digital positioner It includes procedures for mount ing piping and wiring the Logix 3400MD digital positioner for operation Refer to Logix 3400MD Digital Positioner IOM in for detailed information 5 2 Mounting Variations The Logix 3400MD digital positioner can be mounted to a Valtek control valve e Other manufacturer s control valve NOTE Figure 5 1 through Figure 5 4 show typical installations for comparison FLOWSERVE e Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Figure 5 3 Rotary Valve with Four bar Linkage 20 F LOWS E RVE Log
125. ired for Logix 3400MD Digital Positioner Installation Table 2 2 Installation Operation Task Summary Table 4 1 Operating Temperature Limits Table 5 1 FOUNDATION fieldbus Profile Types Table 5 2 Logix 3400MD Digital Positioner Wiring Terminals Table 6 2 Write protect Feature Truth Table Table 6 3 Starting Communications with Logix 3400MD Digital Positioner Table 6 4 Logix 3400MD Digital Positioner Identification Table 6 5 Logix 3400MD Digital Positioner Configuration Task List Table 8 1 Function Block Application Process Elements Table 8 3 Resource Block Parameters Table 8 4 Resource Block Parameter Descriptions Table 8 5 Main Transducer Block Parameters Table 8 6 Transducer Block Parameter Descriptions Table 8 7 Tech Transducer Block Parameters Table 8 8 Transducer Block Parameters Table 8 9 AO Function Block Parameter List Table 8 10 DO Function Block Parameter List Table 8 11 DI Function Block Parameter List Table 8 12 IS Function Block Parameter List Table 8 13 OS Function Block Parameter List Table 8 14 PID Control Function Block Parameters Table 8 15 Flowserve PID Parameters Table 8 17 Resource Block View List Table 8 18 Transducer Block View List Table 8 19 AO Block View Table Table 8 20 PID Block View Table Table 8 20 Status Alarms Table Table 8 21 System Management Supported Features Table 8 22 SM Agent Objects Table 8 23 SM Sync and Scheduling Objects Table 8 24 SM Address Assignment Objects Logix 3400MD Dig
126. it receives its DC power from the fieldbus Is acceptable for intrinsically safe 1 5 applications Is acceptable for non I S applications FISCO CAUTION If the user is installing intrinsically safe field devices in hazardous areas several points should be considered See Intrin sically Safe Applications section Logix 3400MD Digital Positioner Wire Connections Fieldbus signal communications and DC power are supplied to the Logix 3400MD digital positioner using the same fieldbus twisted pair cable LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Inside the electronics housing of the Logix 3400MD digital positioner is the terminal block for connecting external wiring as shown in Figure 5 5 Table 5 2 explains the usage of the wiring terminals for fieldbus use Fieldbus For reference purposes Figure 5 5 Logix 3400MD Digital Positioner Terminal Block Table 5 2 Logix 3400MD Digital Positioner Wiring Terminals Wiring Terminal Use Screw terminals Non polarized Fieldbus cable connections Internal Ground Connection An internal ground terminal is available next to the terminal See Figure 5 5 The terminal can be used to connect the Logix 3400MD digital positioner to earth ground External Ground Connections While grounding the Logix 3400MD digital positioner is not necessary for proper operation an external ground terminal on the outside of the electronics housing provides a
127. ital Positioner LGENIM3405 02 11 13 103 104 FLOWSERVE wee Table 8 25 Virtual Field Device VFD List Objects Table 8 26 Control Parameters Table Table 8 27 Unit Parameters Table Table 8 28 Diagnostics Parameters Table Table 9 1 Transducer Block Calibration Parameters Table 10 1 Device Troubleshooting A Table 10 2 Device Troubleshooting B Table 10 3 Device Troubleshooting C Table 10 4 Areas of Device Memory Where Data is Stored Table 10 5 BLOCK_ERR Parameter Bit Mapping Table 10 6 Transducer Block BLOCK_ERR diagnostics mapping Table 10 7 Summary of Configuration Errors Table 10 8 AO Block Parameters Table 10 9 PID Function Block Parameters Table 10 10 Setting the Simulation Dip Switch Table 10 11 Simulation Mode Truth Table Table 10 12 Symptom Chart Table 10 13 Logix 3400MD Digital Positioner Factory Tuning Sets Table 10 14 Logix 3400MD Digital Positioner Characteristic Curves Table 10 15 Transducer Block Characterization Parameters Logix 3400MD Digital Positioner LGENIM3405 02 11 13 68 70 71 72 78 81 81 82 83 83 84 85 86 87 88 88 89 92 93 94 FLOWSERVE e Logix 3400MD Digital Positioner LGENIM3405 02 11 13 105 re FLOWSERVE wee Flowserve Headquarters 5215 O Connor Blvd Suite 2300 Irving TX 75039 Phone 1 972 443 6500 Flowserve Corporation Flow Control 1350 N Mt Springs Parkway Springville UT 84663 USA Phone 1 801 489 8611 Flowserve Austria GmbH Control Valves
128. ix 3400MD Digital Positioner LGENIM3405 02 11 13 e Figure 5 4 Logix 3400MD Digital Positioner Mounted to a Diaphragm Actuator 5 3 Wiring Logix 3400MD Digital Positioner Wiring the Logix 3400MD Digital Positioner to a Fieldbus Network The Logix 3400MD digital positioner is designed to operate in a two wire fieldbus network Although wiring the Logix 3400MD digital positioner to a fieldbus network is a simple procedure a number of rules exist that should be followed when constructing and wiring a network This section provides general guidelines that should be considered when wiring the Logix 3400MD digital positioner to a fieldbus network segment A procedure is given in this section for properly wiring the Logix 3400MD digital positioner For Detailed Fieldbus Wiring Information Refer to Fieldbus Foundation document AG 140 Wiring and Installation 31 25 kbit s Voltage Mode Wire Medium Application Guide for complete informa tion on wiring fieldbus devices and building fieldbus networks Fieldbus Device Profile Type The Logix 3400MD digital positioner is identified as either of the following fieldbus device profile types in Table 5 1 as per Fieldbus document FF 816 Table5 1 FOUNDATION fieldbus Profile Types Device Profile Type aA EES Characteristic Uses standard power signaling to communicate on a fieldbus network Is a bus powered device The Logix 3400MD digital positioner does not have an internal power supply and so
129. l travel is not centered within the 1 See Linear vs Rotary in Section 6 open or closed position electrical measurement range position sensor out of range Control and Tuning Valve won t saturate at closed position 1 May need to enable MPC 1 See MPC in Section 8 2 Calibration required Valve won t go below or above a certain limit 1 Soft limits are not enabled 1 See Advanced Features in Section 10 2 MPC is not enabled 89 90 FLOWSERVE e Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Sticking or hunting operation of the positioner 1 Contamination of spool valve assembly 2 P 1 setting incorrect 3 Excessive Stiction 1 See Air Supply Requirements on page 15 See Spool Valve in Section 10 2 See Setting P Parameters in Section 10 3 Enable Hi Friction Feature Large initial deviation only present on initial power up 1 Inner loop offset not correct 1 See Setting P Parameters in Section 10 Stem position movement is not linear with com mand 1 Custom characterization is enabled 1 See Custom Characterization in Section 10 Fieldbus Communication Logix 3400MD digital positioner will not com municate with fieldbus Configurator displays Unknown after it con nects 1 Power problem 2 FB card connection 1 DD has not been loaded in the configurator correctly 1 See Wiring the Logix 3400MD Digital
130. light indi cates that the unit is in a special calibration or test mode or that there was a calibration problem 1 Go to Section 7 9 in the Logix 3400MD IOM LED four blink sequence begins with red 1 Any sequence starting with a red light indi cates that there is an operational problem with the unit 1 Go to Section 7 9 in the Logix 3400MD 10 Advanced Features Will not display pressure readings 1 Is configuration set to advanced 1 See Standard vs Advanced Diagnostics in Sec tion 10 MPC will not function 1 Is lower soft limit gt 0 2 Set point should be 1 percent hysteresis around MPC 1 See MPC in Section 8 10 10 Internal Positioner Issues Positioner Inner loop Control and Tuning Setting P 1 Parameters Using the configurator the user can set individual tuning parameters To use the Auto Tune feature of the Logix 3400MD refer to section 7 4 in the Logix 3400MD IOM A few key points are mentioned below GAIN UPPER GAIN_LOWER and GAIN MULT These three parameters are related by the following formula Proportional gain maximum gain deviation x gain multiplier If proportional gain minimum gain then proportional gain minimum gain LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 GAIN UPPER Gain Multiplier Determines Slope GAIN MULT Proportional Gain Minimum Gain GAIN LOWER
131. ling Simulation Before the ENABLE DISABLE in the SIMULATE parameter may be selected the hardware simulation must be enabled for the device To enable simulation in the device set the SIMULATE dip switch to the On position select RESTART PROCESSOR in the Resource block RESTART parameter To ensure that simulate is permitted in the device go to the Resource Block and read the BLOCK ERR parameter It should indicate Simula tion Enabled Simulating the Transducer To simulate the READBACK parameter set the SIMULATE parameter as follows F LOWSE RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 es 1 Set ENABLE DISABLE to ACTIVE and write the parameter 2 Set SIMULATE VALUE and SIMULATE STATUS as desired and write the parameter 3 Read the READBACK parameter This should reflect the value and status which was set in the SIMULATE parameter NOTE The TRANSDUCER VALUE and TRANSDUCER STATUS will continue to be updated by the transducer source as described in the next section Transducer Position Source Selection The source of the TRANSDUCER VALUE and TRANSDUCER STATUS in the SIMULATE param eter is determined by the FEATURE SEL parameter in the Resource Block If FEATURE SEL OUT READBACK not selected default then the transducer source will be the AO OUT parameter If FEATURE SEL OUT READBACK is selected then the transducer source will be the FINAL POSITION VALUE from the Transducer Block Because the FINAL POSITION VALU
132. lock Configuration of a system or device A step in system design selecting functional units assigning their locations and identifiers and defining their interconnections Device A physical entity capable of performing one or more specific functions Examples include transmitters actuators controllers operator interfaces Device Description DD Description of FBAPs within a device Device Description Language A standardized programming language similar to C used to write device descriptions Device Tag User defined identifier for device instantaneous occurrence that is significant to scheduling block execution and to the operational event iew of the application FOUNDATION fieldbus FF Communications protocol for a digital serial two way system that interconnects industrial field equipment Such as sensors actuators and controllers Function Block FB An executable software object that performs a specific task such as measurement or control with inputs and outputs that connect to other entities in a standard way Function Block Application Process FBAP part of the device software that executes the function blocks PID AO transducer or resource blocks device which is responsible for keeping link operational The LAS executes the link schedule circulates Link Active Scheduler LAS tokens distributes time messages
133. lock synch timeslave yes 12 Scheduling function block yes 13 Application clock synch time publisher no 14 to31Reservedforfutureuse no SM SUPPORT Bits Any bit of the object SM SUPPORT will be set that corresponds to a supported feature listed in Table 8 23 The resulting value in the object SUP PORT is 1C1F hex SM Agent Objects Four SM agent objects are contained in the SMIB object dictionary One object SM SUPPORT was described previously The three other objects are timers associated with SM operations Table 8 22 identifies the SM Agent objects with their object directory index and default values Table 8 22 SM Agent Objects Ohject Description Default Value SM SUPPORT Variable that indicates the features supported by SM 258 Ox1C1F in this device See Table 8 22 Logix 3400MD Digital Positioner SMIB Object Dictionary Ti Value of the SMstep timer in 1 32 of millisecond 259 96 000 3 seconds ticks T2 Value of the SM set address sequence timer in 1 32 of 260 1 920 000 60 sec a millisecond ticks onds T3 Value of the SM set address wait timer in 1 32 of 261 480 000 15 seconds millisecond ticks The default value is specified by the communications profile for the application area System Application Clock Time Synchronization Each link in a fieldbus network contains an application clock time publisher responsible for distributing application time on the link A
134. lve must move in order for the movement to be added to TRAVEL ENG TRAVEL ALERT LIM If TRAVEL ENG exceeds this value the LED lights will start to blink Green Red Green Green and a warning will be gener ated in TRAVEL FLAGS STROKE LENGTH Stoke length of valve This value is used to calculate TRAVEL ENG TRAVEL UNITS Units of measure used to calculate TRAVEL ENG PRESS UNITS Units of measure that pressure sensor readings are expressed in TEMP UNITS Units of measure that temperature is expressed in Note The stroke limiting feature could be used to make a valve very responsive to small steps By increasing the nominal gain values and limiting the stroke speed small steps would be subject to very high gains When active the algorithm scales back large step sizes thus limiting the undesired effects large gains normally demonstrate on large step sizes such as overshoot id i x er LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Ne j Signatures See Section 10 13 Initiating a Valve Signature for more details on using the signature acquisition functions of the Logix 3400MD digital positioner Custom Characterization See Section 10 11 Stroke Characterization for more details on using the custom characterization features of the Logix 3400MD digital positioner 8 6 Tech Transducer Block The Tech Transducer block contains the parameters used by a technician to troubleshoot a positioner Many of these parameters are
135. may appear as text messages The text in the table is typi cal of values or messages seen when using the NI FBUS Configurator Table 10 6 Transducer Block BLOCK ERR diagnostics mapping Diagnostic Flag POSITION DEVIATION ALARM FACTORY RESET STATE STROKE CAL REQUIRED SUPPLY PRESS LOW ALARM LOSS INTERBOARD PCB MECHANICAL STATUS not ZERO ELECTRONIC STATUS not ZERO SUPPLY PRESS HIGH WARNING SUPPLY PRESS LOW WARNING PORT A VALUE OUT OF RANGE PORT B VALUE OUT OF RANGE PORT A RANGE TOO SMALL PORT B RANGE TOO SMALL PNUEMAITC LEAK WARN ING SPOOL STICKING WARNING SPOOL STICKING ALARM SPOOL CYCLES WARNING SPOOL TRAVEL WARNING HALL SENSOR UPPER POSITION HALL SENSOR LOWER POSITION FEEDBACK RANGE TOO SMALL POSITION OUT OF RANGE LOW POSITION OUT OF RANGE HIGH NO MOTION TIME OUT NON SETTLE TIME OUT INNER LOOP OFFSET TIME OUT BLOCK ERR Alarm Issued JOG CALIBRATE SET 100 POS BLK ERR DEV NEED MAINT SOON 10 5 Block Configuration Errors Configuration Errors Block configuration errors prevent a device block from leaving 00S mode The BLOCK ERR parameter bit 1 shows whether a block configu ration error is present Table 10 7 summarizes the conditions that may be the result of block configuration errors which in turn cause a device fault Follow the recommended actions to correct these errors FLOWSERVE e Table 10 7 Summary of Configuration Errors Problem Fault Name of parameters are not vis
136. ments MODE BLK The operating mode of the Aa AutoAuto The transducer block must be in the 005 mode to perform Transducer block 005 0 of Service a Signature SIG START oe position point for signature Value is in percent and should be set in thel range of 10 to 11096 Value is in percent and should be set in the SIG STOP Ending position point for signature range of 10 to 110 Desired time for ramp signature in s T RAMP RATE Seconds Minimum value is 1 RAMP_RATE is only used in the ramp signature This is ignored in step signatures Time in seconds after step or ramp SIG HOLD that the the system will log data 0x01 RUN BEGIN SIG Select to initiate the signature 0x02 SIG COMPLETE Status set when signature is complete 0x04 TEST REPEAT MODE 0x08 RUN RAMP Select to run ramp signature otherwise it defaults to step Byte value which select signiature SIG FLAGS Which signature options Are used 0x10 VALVE Initializes valve for signature capture read only 0x20 END OF DAT End of signiature data encountered when uploading 0x40 TEST DAC MODE Select for special DAG mode 0x80 RUN PST Run Partial Stroke Test PST Writing any value to SIG INDEX will initiate a sig data transfer SIG INDEX ed Write the desired packet and will populate the SIG_DATAn parameters in the XDTB transfer value TECH block The DIG DATAn parameters are populated with the latest Arrays to hold the signature data after SIG DATAn transfer f
137. mes that appear at start up These can be changed to actual network addresses and tag names Typically the device tag and block tags are modified to be unique throughout the network Device Configuration The user can view the various block parameters that make up the Logix 3400MD digital positioner configuration Enter parameter values for your process application and write them to the device Refer to the Logix 3400MD Digital Positioner Start up Guide for supplemental help Note it is recommended to set the device address to at least 20hex or above if using the LAS feature to avoid possible conflicts with the host system 4 Pre installation Considerations 4 1 Introduction This section reviews several topics which should be considered before installing the Logix 3400MD digital positioner If replacing an existing Logix 3400MD digital positioner this section can be skipped FLOWSERVE e Logix 3400MD Digital Positioner LGENIM3405 02 11 13 4 2 Considerations for Logix 3400MD Digital Positioner Evaluate Conditions The Logix 3400MD digital positioner is designed to operate in common indoor industrial environments as well as outdoors To assure opti mum performance conditions at the mounting area should be evaluated relative to published device specifications and accepted installation practices for electronic positioners including but not limited to the following e Environmental Conditions e Ambient Temperature
138. mmunications with Logix 3400MD Digital Positioner Verify that the power supply is on and connected with the proper polarity See Table 4 2 Logix IS 3400MD Digital Positioner Power Requirements for proper voltage levels 2 Verify that the operator interface is loaded with the NI FBUS Configurator or other configuration application Start the application on the computer Start the NI FBUS fieldbus driver and Configurator NOTE Network guidelines as out lined in AG 3 View the active devices connected to the network JET have been followed 4 Access the Logix 3400MD digital positioner s blocks Start the NI FBUS Configurator application and parameters Tag Name Assignments If device or block tags have not been assigned to a device the NI FBUS Configurator will automatically assign a default device tag name This is done so that the devices are visible on the network The user can then change tag names according to the process requirements 27 28 iy F LOWSE RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Ne 6 8 Making Initial Checks Identifying the Logix 3400 Digital Positioner Before proceeding verify the following to make sure that the user is communicating with the correct Logix 3400MD digital positioner e Devicetype 0 x 0203 e Device ID 4640530203 FLS LX3400MD 00nnnnnnnn e Device tag tag description of the Logix 3400MD digital positioner e Firmw
139. mpletion of the calibration cycle the block must be returned to normal mode for operation to resume Re Cal only affects position calibration Any previous configuration or stored information is not affected Re Cal must be used to Auto Tune the positioner 79 80 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee 10 Troubleshooting 10 1 Introduction This section contains information about identifying device faults and suggested actions to correct them The approach to troubleshooting is determining the cause of the fault through definition of the symptoms such as a device not visible on network or not able to write values to parameters The information is organized the following way e Device troubleshooting tables list some of the more commonly encountered faults and suggestions to check in order to find out where the problem is and correct it e Positioner status tables define some of the conditions that cause critical or non critical faults in the transmitter Critical and non critical faults are described and suggestions are given on where to find further information e Device diagnostics briefly explains about some of the background diagnostics that are active in the device during normal operation Device parameters are described that provide information about hardware and software status within the device e Block configuration errors summarize conditions within the device which may be caused by configur
140. n TEST MODE Transducer Block Diagram Figure 8 2 is a block diagram showing the basic components of the transducer block FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 4 AO Block Transducer Block Controller Board 0 not used output Value CMDdigital 1 Scaling STATUSflags output CALIBRATEflags STATUSflags TRAVELflags k CALIBRATEflags FINAL VALUE RANGE INTERNALflags TRAVELflags CHANNEL FINAL VALUE CUTOFF HI EINAL VALUE PRESSflags INTERNALflags i PRESSflags MODE SEO CERE Determine Status SIMULATE FIELD FINAL POSITION VALUE x FBXN Figure 8 2 Transducer Block Diagram Transducer Block Valtek Product defined Parameters Table 8 6 describes the Logix parameters included in the transducer block Table 8 6 Transducer Block Parameter Descriptions Parameter Default Value Function FINAL_VALUE_CUTOFF_HI 110 This will saturate the actuator in an open position if FINAL_VALUE becomes greater than the cutoff value This will saturate the actuator in a close position if FINAL_VALUE becomes less than the cutoff value This is the FINAL VALUE CUTOFF LO 1 same as the Minimum Position Cutoff feature of the Logix1200 digital positioner The new terminology matches FF terminology FINAL POSITION VALUE Dynamic Actual stem position in pe
141. nagement objects and parameters The parameters for this communication relationship are stored in a Virtual Communications Reference VCR object VCR Attributes The attributes for the VCR types VCR name defined in the Logix 3400MD digital positioner device are standard fieldbus attributes There are 16 available VCR s available in the Logix 3400MD For detailed descriptions of these attributes see 69 70 E LOWSE RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we Unsupported Services The following is a list of services which are not supported not used in the Logix 3400MD digital positioner FBAP e FB Action all function blocks are static e OD all ODs are static e Domain upload e Program invocation e Reception of alert and trend indications e Access protection and check of password e AlertEventConditionMonitoring e Write to variable lists e Create Modify Delete variable lists e Read and write access by name e Phys Read Phys Write e Read With Type Write With Type e Information Report With Type 8 24 Logix 3400MD Digital Positioner Variable Enumeration The following table defines the Logix 3400MD digital positioner variables enumeration CALIBRATE This variable initiates calibration procedures and reports current state of calibration during the procedure CONTROL PARAMETERS Table 8 26 Control Parameters Table Parameter Name Bit or Byte Values Description TEST_MODE Bi
142. ner LGENIM3405 02 11 13 Nes Introduction Copyright Notices and Trademarks While this information is presented in good faith and believed to be accurate Flowserve 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 customer In no event is Flowserve liable to anyone for any indirect special or consequential damages The information and specifications in this docu ment are subject to change without notice Logix 3400MD digital positioner and ValveSight is a trademark of Flowserve Corporation FOUNDATION Fieldbus is trademark of the Fieldbus Foundation Information Mapping is trademark of Information Mapping Inc Win dows is a registered trademark of Microsoft Corporation Windows NT Windows XP Windows VISTA and Windows 7 are trademarks of Microsoft Corporation NI FBUS Configurator is a trademark of National Instruments About This Manual This manual is intended as a how to reference for installing wiring configuring starting up and operating the Valtek Logix 3400MD digital positioner with FOUNDATION fieldbus FF This manual provides detailed information for installation and operation to assist first time Logix 3400MD digital positioner users This manual is written as the technical guide for the experienced fieldbus user It does not contain information on fieldbu
143. nfiguration Errors in Sub section 10 6 4 Write all zeroes to the second element of the BLOCK TEST parameter 85 Logix 3400MD Digital Positioner LGENIM3405 02 11 13 FLOWSERVE e AO block is in the correct 1 Simulation active 1 Disable simulation See Sub section 10 8 for procedure mode but does not seem to 2 The block has not been configured to be operating execute It is neither in the function block schedule in the system management in formation base nor is it linked to another executing block via the next block to execute field in the block record relative parameter index 0 The second element of BLOCK TEST is not zero 2 Build and download an execution schedule for the block including links to and from block with other function blocks 3 Write all zeroes to the second element of the BLOCK TEST parameter 10 6 Clearing Block Configuration Errors Clearing Block Configuration Errors Table 10 8 and Table 10 9 list the parameters in the AO and PID blocks which can cause the status bit of block configuration error to be set in their respective BLOCK ERR parameters The tables also provide the initial values and the valid range for the parameters NOTE Block configuration errors can only be cleared if the function block is being executed running One way of determining block execution is by doing a series of two or three reads of the BLOCK TEST parameter and
144. nnection with the specific application While the information and specifications contained in this literature are believed to be accurate they are supplied for informative purposes only and should not be considered certified or as a guarantee of satisfactory results by reliance thereon Nothing contained herein is to be construed as a war ranty or guarantee express or implied regarding any matter with respect to this product Because Flowserve is continually improving and upgrading its product design the specifications dimensions and information contained herein are subject to change without notice Should any question arise concerning these provisions the purchaser user should contact Flowserve Corporation at any one of its worldwide operations or offices 2009 Flowserve Corporation Irving Texas USA Flowserve is a registered trademark of Flowserve Corporation flowserve com Flowserve Essen Gmbh Manderscheidtstr 19 45141 Essen Germany Phone 49 0 201 8919 5 Flowserve S A S 7 Avenue de la Lib ration BP 60 63307 Thiers Cedex France Phone 33 0 4 73 80 42 66 Flowserve Pte Ltd 12 Tuas Avenue 20 Singapore 638824 Singapore Phone 65 6868 4600 NAF AB Gelbgjutaregatan 2 SE 581 87 Link ping Sweden Phone 46 0 13 31 61 00 K mmer Valves INC 1300 Parkway View Drive Pittsburgh PA 15205 USA Phone 1 412 787 8803
145. not up dated on a regular basis In order to cause these parameters to update on a regular basis the TEST MODE parameter in the Main Transducer block must have the diagnostics enabled Section 10 16 Lists the parameters that do not update unless TEST MODE is selected Table 8 7 Tech Transducer Block Parameters Index Origin Name Store Date Type Default Value OSTND XDTB_TECH SRW Record BLOCK 0 1STND ST REV SR Simple UNSIGNED16 1 2SIND TAG DESC SRW Simple 0 STRING 7 3ISTND STRATEGY SRW Simple UNSIGNED16 2 4STND ALERT KEY SRW Simple X UNSIGNED8 4 SISTND MODE SRW Record IMODE 0 01 0 01 0 11 0 10 6ISTND BLOCK ERR R Simple STRING 0 7SIND UPDATE EVT RW Record ALARM EVENT 0 0 0 0 0 0 0 0 8ISTND 0 ALM RW Record ALARM DISC 0 0 0 0 0 0 0 0 0 0 9STND TRANSDUGER DIRECTORY NR Array UNSIGNED16 0 10STND TRANSDUCER TYPE NR Simple UNSIGNED16 106 11STND XD ERROR R Simple UNSIGNED8 0 12S8TND COLLECTION DIRECTORY NR Array UNSIGNED32 0 13IMFG ELECTRONIC STATUS R Simple STRING 0 14MFG ELECTRONIC MASKING NRW Simple STRING 0 15MFG INNERLOOP STATUS R Simple STRING 0 16MFG INNERLOOP MASKING NRW Simple STRING 0 17MFG OUTERLOOP STATUS R Simple STRING 0 18MFG OUTERLOOP_MASKING NRW Simple STRING 0
146. nt number 1 closest to the top Fieldbus main software version IE 300 3 00 Element number 2 Fieldbus Softing Stack version number IE 212 2 12 Element number 3 The Major software version Element number 4 The Minor software version LX 3400MD 3400MD 020F082A8 RESOURCE lt RESOURCE 3400MD02 E t Eg 8 E3 2 EEG V Periodic Updates 2 sec oos Awo Process Tuning Options Alarms Diagnostics Others MODE BLE TARGET 005 ACTUAL emos PERMITTED Auto 005 NORMAL DEV TYPE 515 DEV REV 1 a DD REV 1 REVISION ARRAY REVISION ARRAY 300 REVISION ARRAY 212 REVISION ARRAY 3 REVISION ARRAY Write Changes Head All F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 1 Logix3400MD Digital Positioner Description 1 1 Introduction This section is intended for users who have never worked with the Logix 3400MD digital positioner fieldbus positioner interface It provides same neneral information to acquaint the user with the Logix 3400MD digital positioner CAUTION Flowserve recommends NI FBUS Configurator software that runs on a variety of Personal Computer PC platforms using Windows NT Windows XP Windows VISTA or Windows 7 It is a bundled Windows software and PC interface hardware solution that allows quick error free configuration and diagnosis of Flowserve control products with FOUNDATION fieldbus communications The NI FBUS Configurator allows users
147. oise at a fixed position and should not be considered a change it should move greater than 10 to 20 counts if the linkage is centered correctly Rotate the take off arm if necessary to bring the linkage in range This procedure is only necessary on a rotary mounting For Linear mountings the red LED will blink if 65 travel is exceeded Refer to the Calibration section for further information on stroke calibration errors Default Configuration An FBAP containing default configuration parameters is resident in the firmware of the device and is loaded on power up By using the NI FBUS Configurator or other fieldbus configuration application the user can create or make changes to a FBAP for the device s process application Device Configuration Configuring the Logix 3400MD digital positioner results in e Function blocks that execute according to a user defined schedule e Measurements that are processed according to various user configured parameters found within function blocks e An output published on the fieldbus network according to a user defined publishing schedule Device Configuration Example A sample printout of a typical device configuration for the Logix 3400MD digital positioner is given in Appendix A Sample Configuration Record 25 26 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 e LAS Capability The Logix 3400MD digital positioner is capable of operating as the Link Active Scheduler LAS The L
148. onfiguration Process Logix 3400MD Digital Positioner Configuration Configuration of the Logix 3400MD digital positioner device involves the following steps 1 Establishing communication between the operator interface and the device bringing the Logix 3400MD digital positioner on line in a field bus network See Section 6 7 Establishing Communications 2 Making initial checks on the device serial number and firmware revision numbers See Section 6 8 Making Initial Checks 3 Using a fieldbus configuration application creating or making changes to the device configuration See Section 6 9 Configuration Tasks 4 Writing the device configuration changes to the device See Section 6 9 Configuration Tasks 5 Saving device configuration to disk See Section 6 9 Configuration Tasks 6 4 Device Configuration Function Block Application Process All fieldbus devices contain one or more Function Block Application Processes FBAP as part of their device configuration The FBAP in the Logix 3400MD digital positioner is a software application that defines the particular characteristics of the Logix 3400MD digital positioner The FBAP comprises function blocks a transducer block and a resource block plus other functions which support these blocks Each function block contains a set of operating param eters some of which can be userconfigured that define the operating characteristics of the Logix 3400MD digital positioner Function blocks per
149. oo FLOWSERVE USER INSTRUCTIONS Logix 3400MD Installation amp Digital Positioner Reference Guide FCD LGENIM3405 02 11 13 Experience In Motion LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Contents Introduction 5 1 Logix 3400MD Digital Positioner Description 10 1 1 Introduction 10 1 2 Fieldbus Logix 3400MD Digital Positioner 10 1 3 Fieldbus Overview 12 2 Installation Overview 13 2 1 Introduction 13 2 2 Installation Components 13 2 3 Installation Operation Tasks 14 3 Bench Configuration Optional 15 3 1 Introduction 15 3 2 Bench Check 15 4 Pre installation Considerations 16 4 1 Introduction 16 4 2 Considerations for Logix 3400MD Digital Positioner 17 5 Logix 3400MD Digital Positioner Installation 18 5 1 Introduction 18 5 2 Mounting Variations 18 5 3 Wiring Logix 3400MD Digital Positioner 20 6 Logix 3400MD Digital Positioner Configuration 23 6 1 Introduction 23 6 2 Logix 3400MD Digital Positioner Communications 24 6 4 Device Configuration 24 6 6 Simulation Dip Switch 27 6 7 Establishing Communications 27 6 8 Making Initial Checks 28 7 Operation 29 7 1 Introduction 29 7 2 Operation Tasks 29 8 Configuration Description 29 8 1 Introduction 29 8 2 Function Block Application Process 29 8 3 Block Description 30 8 4 Resource Block 32 8 5 Main Transducer Block 34 8 6 Tech Transducer Block 39 8 7 Transducer Block 42 8 8 Analog Output Function Block 44 8 9 Digital Output Function Block 47
150. operating mode of the Logix 3400MD digital positioner to simulation mode the user must change hardware dip switches on the internal electronics boards This may require that the power be removed from the Logix 3400MD digital positioner See Section 6 5 Setting Write protect Feature and Section 10 9 Simulation Mode for details Power Up Procedure To apply power to the fieldbus network perform the following steps 1 Turn on all power supplies that furnish DC power to the fieldbus network 2 Use a digital voltmeter and measure the DC voltage across the and Signal terminals to the Logix 3400MD digital positioner 3 Verify that the terminal voltage is within the limits listed in Table 4 2 Logix 3400MD Digital Positioner Power Requirements 6 Logix 3400MD Digital Positioner Configuration 6 1 Introduction This section explains the tasks to establish communications and configure the Logix 3400MD digital positioner for the process application An overview is given of the configuration tasks using the NI FBUS Configurator application as an example Detailed information on using the configurator application is found in the user manual supplied with the software Prior to installing the Logix 3400MD refer to sections 5 6 and 7 in the Logix 3400MD IOM for information on how to mount install wire and start up a Logix 3400MD 23 24 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 CAUTION Before proceeding wit
151. ork can be monitored and controlled at the operator interface Figure 2 1 shows how these components go together to operate on a fieldbus network Operator Station or Host Computer E Terminator Power Conditioner Fieldbus Device Figure 2 1 Fieldbus Network Components 2 3 Installation Operation Tasks Installation of the Logix 3400MD digital positioner is not difficult The tasks for installing and operating the Logix 3400MD digital positioner are outlined in Table 2 2 14 LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 J Table 2 2 Installation Operation Task Summary Task Procedure Referto Bench Check optional Bench configuration Section 3 Bench Configuration Optional 1 Pre installation Considerations Section 4 Pre installation Considerations 2 Install Logix 3400MD digital positioner Mounting Section 5 Logix 3400MD Digital Positioner Installation Wiring Refer to Logix 3400MD Digital Positioner IOM 3 Power Up Logix 3400MD digital positioner Section 5 4 Powering Up the Logix 3400MD Digital Positioner 4 Fess Communications Section 6 7 Establishing Communications Initial checks Section 6 8 Making Initial Checks 5 dgtaliposiioner Section 6 9 Configuration Tasks The user manual supplied with the fieldbus configuration application 6 Operation Section 7 Operation
152. ration and operational information used for Base control of system management operations Status coded value that qualifies dynamic variables parameters in function blocks This value is usually passed along with the value from block to block Fully defined in the FFFBAP specifications IA defined communication end point Fieldbus communications can primarily only take place along active er communications path that consists of two VCR end points For example to establish communications Communication een V R between a transducer AO block and another function block VCR must be defined at the transducer block and a VCR must be defined at the function block between the two function blocks Virtual Field Device VED A logical grouping of user layer functions Function blocks are grouped into a VFD and system and network management are grouped into a VFD FLOWSERVE 129 34 Positioner LGENIMS405 02 we References Publications from the Fieldbus Foundation Flowserve recommends that the user obtain these publications which provide additional information on Fieldbus technology Publication Title Publication Number Publisher Technical Overview FOUNDATION fieldbus FD 043 Wiring and Installation 31 25 kbit s Voltage Mode Wire MediumApplication Guide AG 140 Available from the Fieldbus Foundation 31 25 kbit s Intrinsically Safe Systems Application Guide AG 163 Engineerin
153. rcent of stroke FINAL VALUE RANGE 110 to 10 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 TEST MODE 0 Used to enable certain parameter outputs and diagnostic control CONTROL CONFIG 0 Used to configure the positioner PGAIN 2 Proportional gain DGAIN 2 Derivative gain IGAIN 10 Integral gain SOFTSTOP HIGH 110 Software upper stroke limit SOFTSTOP LOW 10 Software lower stroke limit PRESS UNITS Psi Units pressure sensors reading are expressed in TEMP UNITS DegF Units temperature is expressed in Parameter Definitions The following list summarizes some of the key parameters within the Logix 3400MD digital positioner For definitions of parameters not listed use the help window in the DD view The Logix positioner automatically stores changed parameters in non volatile memory when change is made FINAL VALUE This is the set point or command received by the 3400MD FINAL VALUE GCUTOFF If FINAL VALUE is greater than FINAL VALUE GUTOFF HI the positioner will saturate the actuator in an open posi tion A 1 percent hysteresis is added so FINAL VALUE must be more than 1 percent smaller than FINAL VALUE CUTOFF HI before the positioner will allow the valve to start closing This feature is disabled in SOFTSTOP HIGH is less than or equal to 100 percent 37 38 F LOWS E RVE Logix 3400MD Digital Positioner L
154. requires a number of components to provide control and data communications between field devices and the control room environment Table 2 1 outlines the basic component parts needed to install and operate the Logix 3400MD digital positioner on a fieldbus network 13 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 s Table 2 1 Components Required for Logix 3400MD Digital Positioner Installation Components Description Logix3400MDDigitalPositioner Fieldbus positioner Power supply Furnishes DC power to fieldbus devices Acts as a filter to prevent the power supply from interfering with the fieldbus signaling May be part Power conditioner of a fieldbus power supply Fieldbus cable Twisted pair shielded wire used to interconnect fieldbus devices Fieldbus terminators signal termination device used to prevent reflected signals noise from distorting fieldbus communications Fieldbus IS Barriers For hazardous area installations Intrinsic safety wire barriers are required for hazardous location installations Wiring blocks allowing easy connection of devices cable terminators surge suppressors and other fieldbus network components Operator Interface In the control room an operator station personal computer or host computer acts as the operator interface to the fieldbus network Using supervisory control software applications the field devices on a fieldbus netw
155. revert control back to the AO block Table 10 17 DO OUT d Table OUT D VALUE Position me m fm m fm m fe LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 10 19 Logix 3400MD Digital Input DI Operation The DI LO is a discrete that is set when the actual position of the actuator is equal or less than the XDTB MAIN pos alert lo parameter To implement schedule the DI LO block to run and set the XDTB MAIN pos alert lo to the value that you want the trigger point be DI HI is a discrete that is set when the actual position of the actuator is equal or greater than the XDTB MAIN pos alert hi parameter To implement schedule the DI HI block and set the XDTB MAIN pos alert hi to the value that you want the trigger point to be 11 Software Maintenance Appendix A Sample Configuration Record Sample Device Configuration The following pages provide a printout example of the Function Block Application portion of a Logix 3400MD digital positioner device configuration file The printout was generated using the NI FBUS Configurator application and shows function block parameters and values for a typical control loop The printout is shown at the left side of the page Comments and notes on the configuration are given on the left hand side Glossary AD Also called ADC or analog to digital converter An A D converts an analog signal into an integer count This int
156. rmitted Modes Auto Auto tar get mode OOS Out of Service Comments The transducer block must be out of service before the user can edit or change characterization CONTROL FLAGS Byte values which select posi tioner operation features 1 Quick Opening Curve 2 Equal Percent Curve 4 Positioner Model 5 Actuator Style 6 Custom Characterization Active 8 Air Action Loads factory defined QO curve as custom curve Loads factory defined equal percent curve as custom curve Activates custom curve If Off response is Linear tom point 1x21 array points acterization point Range 10 to 110 CURVEX Numeric X value array for cus X axis value for custom stroke char Pair each X value with corresponding Y value to tom point 1x21 array points acterization point Range 10 to 110 define the desired point Values must be in ascending or equal order CURVEY Numeric Y value array for cus Y axis value for custom stroke char LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Must not be selected if a custom curve is to be created or edited 10 12 Characterization Procedure The following procedure outlines the basic way setting up a custom stroke characterization takes place Steps 1 Verify the process is in a safe condition and that the valve may be taken out of service 2 Putthe Transducer block MODE BLKOOS 3 Make sure that Custom is selected in
157. roke calibration Closes valve performed 2 Initiates actuator pressure transducers calibration Moving valve closed position Messages only Moving valve to open position Calibrating Supply Calibrating actuator sensor closed Calibrating actuator sensor open Monitoring of Re Cal button Error occurred during calibration 10 Inner loop offset adjustment Nulls the spool block Da FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 wee 11 Auto Tune Positioner Only active when Re Cal is done 12 JogCal Waiting for user to set point Initiates the monitoring of the button for five seconds 13 Range Checking 14 Normal Operation Rev 0x23 Jog Cal must be enabled in MISC_FLAGS before it can be initiated Gheckjog call setting in MISG FLAGS PRESURE_ Input referenc or 0 150 psig max Used to calibrate the span of the actuator pressure sensors SUPPLY_ actual supply pres CAL_REF sure for calibration Two point Calibration The Logix 3400MD digital positioner has two point calibration The stroke position feedback potentiometer and the actuator pressure trans ducers are calibrated this way The positioner must be pre configured to the proper air action and valve type linear or rotary before the calibration is done Procedure Stroke and pressures are calculated when the user follows the steps below 1 Using a fieldbus configuration application as the operator interface
158. rom cornitroller board data when write to the SIG INDEX parameter is FLOWSERVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Nes 10 14 Signature Procedure The following steps are an example of how to initiate ramp signature capture 8 9 LX 3400MD 3400MD O10E096C4 XDTB MAIN Apply Values Main XD Wizards XDTB MAIN 3400MD 01 Ej 4 Breie eo IV Periodic Updates 2 sec gt oos Auto Trends Others Methods Block Information Process 1 0 Config Limits Alarms Diagnostics Calibration Value Type amp E 1 SIG START SIG STOP SIG RATE SIG HOLD SIG INDEX Write Changes Read All Make sure the process is in a safe condition and notify the control room that the valve will temporarily be taken off line Verify preparedness to proceed Putthe Transducer block MODE BLK 008 Set SIG START to desired value Set SIG STOP to desired value Set SIG RATE to desired value Set SIG HOLD to desired value In SIG FLAGS select RUN BEGIN RUN RAMP Write values to the Logix 3400MD digital positioner 10 The valve will stroke to the beginning position as defined by SIG START will begin ramping to the desired ending position as defined by SIG STOP Notice that SIG COUNTER will increment while this takes place 11 SIG FLAGS indicates SIG COMPLETE 12 Notify control room the valve is back on l
159. s Positioning For the most basic operation of the Logix 3400MD digital positioner the user must write the desired final position value to OUT in the AO block The AO block MODE_BLK would be set to Manual The AO block SHED_OPT must be set to anything but uninitialized and the CHANNEL is set to1 The Transducer block MODE_BLK is set to Auto The Resource block MODE_BLK is set to Auto Note A valid schedule must have been downloaded into the device for control from the AO block Calibration Set the AO block and Resource block to OOS Next set the Transducer block MODE_ BLK to Out of Service OOS Write the desired calibration to CALIBRATE to perform the calibration routine If performing the actuator pressure transducer calibration the user will need to first write the supply pressure value into PRESSURE SUPPLY GAL REF and the correct pressure units Same as PRESSURE_SUP PLY_CAL REF units into PRESSURE_UNITS These are found under the XDTB_MAIN block When calibrating a pro model positioner 342X model enter the ACT_SIZE and ACT_AREA before starting the calibration routine 8 Configuration Description 8 1 Introduction This section provides information about the construction and contents of the Logix 3400MD digital positioner Function Block Application Process FBAP the application that defines Logix 3400MD digital positioner function and operation in the process application This infor mation provides some understanding of the el
160. s communications and usage It is recommended that a user new to fieldbus attend the training courses that are taught by the Fieldbus Foundation to obtain the background knowledge that is needed to operate a fieldbus segment The sections of information contained in the manual follow this order Background and pre installation Logix 3400MD digital positioner mechanical and electrical installation Logix 3400MD digital positioner configuration Operation Reference information Symbol Abbreviations T This caution symbol on the equipment refers the user to the installation manual for additional information This symbol appears next to required information in the manual ATTENTION Electro Static Discharge ESD hazard Observe precautions for handling electrostatic sensitive devices FE 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 Abbreviations Analog Input AO Analog Qutput F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we AWG American Wire Gauge DB Database DD Device Description DDL Device Description Language DI Digital Input DO Digital Output EEPROM Electrically Erasable Programmable Read Only Memory EMI Electromagnetic Interference FB Function Block FBAP Function Block Application Processor FOUNDATION fieldbus IS Input Selector
161. s configuration Write protect On position on the dip switch Enabling Write Protect Feature The write protect feature is activated only when the HARD_W_LOCK option is set in the FEATURE_SEL parameter Once the bit is set and W R DIP switch is in R position the device will remain write protected until the device is powered down and the DIP switch is placed in the off position See Table 6 2 for truth table Table 6 2 Write protect Feature Truth Table and the FEATURE SEL HARD_W_LOCK option is set to 0 When the Write protect dip switch main PCB cover is set to Off position Write protect Disabled Write Protect Dis abled On position Write protect Disabled Write Protect Enabled 6 6 Simulation Dip Switch Simulation dip switch A simulation parameter in the AO block is used to aid in system debug if the process is not running A hardware dip switch is provided to enable or disable the simulate parameter See Section 10 8 for details on setting the simulation dip switch See Figure 10 1 6 7 Establishing Communications Starting Communications Once the Logix 3400MD digital positioner is connected to the fieldbus network and powered up the user is ready to start communicating with the device The procedure in Table 6 3 outlines the steps to initiate communications with a Logix 3400MD digital positioner using the NI FBUS Configura tor Table 6 3 Starting Co
162. s for a clamped integration summer are listed below e Stroke calibration incorrect e Any failure which prevents stem position movement stuck spool handwheel override low pressure e Incorrect inner loop offset e Loss of air supply on a fail in place actuator Writing a zero to integral gain will clear the integral summer The integral gain can then be returned to its original value Inner Loop Offset IL OFFSET Referring to Figure 1 3 in section 1 three control numbers are summed to drive the inner loop spool position control pro portional gain integral summer and inner loop offset Inner loop offset is the parameter that holds the spool in the null or balance position with a control deviation of zero This value is written by the positioner during stroke calibration and is a function of the mechanical and electrical spool sensing tolerances However if replacing the Driver Module Assembly is necessary or the software reset has been performed it may be necessary to adjust this value The method below should be used to adjust inner loop offset Or simply perform a new stroke calibration From the fieldbus configurator 92 LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Ne e Send a 50 percent command e Set integral to zero e Locate the DAC PERCENT e Write this percentage value to IL OFFSET e Write original value to Integral Table 10 13 Logix 3400MD Digital Positioner Factory Tuning Se
163. s the error PID Tuning Parameters Table 8 10 lists the valid ranges for the tuning parameters for the PID block Note that OUT LAG parameter cannot be configured when ideal PID is selected PID FORM 1 and can be configured when robust PID is selected PID FORM 2 The values given for these tuning parameters are valid under the following conditions e values assume that the minimum configured PID function block execution period Ts is 0 125 seconds e Algorithm type setting i e A B or C has no effect on the validation of these tuning parameters e The PID function block will reject all values outside the ranges Mode restricted Writes to PID Parameters Writing to certain PID block parameters are restricted by the blocks TARGET and or ACTUAL mode The MODE BLK TARGET or MODE ACTUAL parameter must equal one of the modes in the Write Restrictions Column in Table 8 8 before the user can write values to the pa rameters listed Note Do not select anything in CONTROL OPTS in order to set the PID action to reverse acting 53 54 Logix 3400MD Digital Positioner LGENIM3405 02 11 13 FLOWSERVE e 8 14 Link Objects The function blocks configured to control process are linked or connected by objects within the devices These links allow the user to trans fer process and event data from one block to another These links are defined through link objects Link Object Description Link objects define
164. s with the hardware to produce an output It also contains device specific parameters such as calibration and diagnostics parameters Main Transducer The main transducer block contains all of the parameters data required for basic functionality of the device The tech transducer block contains parameters data that can be used to troubleshoot or analyze the device The MD transducer block contains parameters data that are associated with the advanced or pro diagnostics of the device Performs basic automation functions that are integral to automated control and processing Analog Output AO function block operations The AO block performs functions like engineering units scaling output scaling alarming and back calculation when connected as a cascade to a PID or other block The DO block converts the value in SP_D to something useful for the hardware found at the CHANNEL selection The DI block takes the manufacturer s discrete input data selected by channel number and makes it available to other function blocks at its output This block is intended to be used in forward path only and is not intended to receive signals Input Selector IS function block from the output of controller There is no back calculation support or propagation of control status values Tech Transducer MD Transducer Digital Output DO function block Digital Input DI function block Output Splitter OS function block
165. sembly Refer to the IOM manual for spare part kit numbers Refer to the instructions in the Logix Series 3400MD Digital Positioner IOM under Driver Module Assembly for further instructions Advanced Features Standard vs Advanced Diagnostics Answer The model with advanced diagnostics adds top and bottom sensors This allows for the collection of data for more diagnostic calculations such as loss of pressure friction advanced signatures and troubleshooting Question Can I upgrade from a standard to an advanced model Answer Yes Advanced pressure board assembly can be purchased see IOM Simply install the advanced pressure board All connectors on the pressure board are keyed and unique for easy cable re connection Using FB configurator perform an actuator pressure calibration Temperature and Pressure Units The desired temperature and pressure units can be set during configuration Once set all readings will be displayed in the desired units Parameters TEMP UNITS and PRESS UNITS in the transducer block Stroke Length Stroke length is used by the travel accumulator TRAVEL ENG When the stroke length and units are set the length is used to determine the total travel accumulated The travel accumulator will have the units associated with stroke Parameters STROKE ENG and TRAVEL UNITS inthe transducer block Example Stroke length is set to 4 inches If the valve is moved from 0 percent to 100 percent 4 inches will be added to
166. should be increasing indicating that block is running If block is not run ning check the second element of BLOCK TEST If second element of BLOCK TEST is not zero write all zeroes to element Download valid schedule to device FLOWSERVE 1294 Positioner 02 10 4 Device Diagnostics Logix 3400MD Digital Positioner Memory The Logix 3400MD digital positioner contains number of areas of memory An EEPROM provides non volatile memory area for static and non volatile parameter values The positioner also contains areas of RAM and ROM Background Diagnostics Block objects resource transducer and function blocks the communications stack and other device objects each have designated area of memory where their database resides Diagnostic routines are performed in the background during device operation which check the integrity of these individual databases When a failure is detected a status bit is set in the BLOCK ERR parameter inthe appropriate block object Diagnostic checks are performed continuously on the device functional databases of the Logix application shown in Table 10 4 Table 10 4 Areas of Device Memory Where Data is Stored Device Functional Area Location Block object database DB RAM and EEPROM Communication stack database DB RAM and EEPROM Boot ROM ROM Program ROM ROM Trend and link object databases DB RAM and EEPROM BLOCK ERR
167. signature parameters This procedure may take the device several minutes to complete The data will be formatted in following order Command Position Spool Command Hall Position in Percent Port 1 Pressure in Percent Port 2 Pressure in Percent Future Use LX 3400MD 3400MD 020F082A8 XDTB TEC Apply Values MDTB TECH 3400MD 02 2 Ej ES 92 2 g 2 sec 4j DOS Process vo Config Alarms Diagnostics Others Parameter El SIG DATAT SIG DATAT SIG SIG DATA SIG DATAT SIG SIG DATA SIG DATA SIG DATAT SIG SIG DATA SIG DATA SIG SIG SIG DATA SIG DATAT SIG SIG DATA SIG DATAT SIG DATAT SIG DATAT Write Changes Read All 10 15 Logix 3400MD Function Block Execution Times XDTB TECH BLOCK 20 mS Logix 3400MD Digital Positioner LGENIM3405 02 11 13 FLOWSERVE wee XDTB_MAIN_BLOCK 20 mS XDTB_MD_BLOCK 20 mS PID 90 mS DI_LO 20 ms DI_HI 20 mS ANALOG_OUT 30 mS DISCRETE_OUT 30 mS OUTPUT_SPLITTER 50 mS iNPUT SELECTOR 50 mS 10 16 Logix 3400MD Diagnostic Parameters Enabled with TEST MODE The following Logix 3400MD parameters are only populated with valid data when the ENABLE DIAGNOSTIC bit in the parameter TEST MODE has been selected LX XDTB TECH DEVIATION EFFORT LX XDTB TECH PRESS CTRL EFFORT LX XDTB TECH INTEGRAL EFFORT LX XDTB TECH SPOOL COMMAND LX XDTB TECH BACKOFF EFFORT
168. t 0 0x01 Enagle diagnostic variable access Bit 7 0x08 Write to DAC value Calibrate 0 Select Calibration Type 1 Perform a Stroke Calibration 2 Perform a Pressure and Friction Calibration 5 ABORT Calibration Procedure Calibration Status Bit 0 0x01 Stroke Calibration in Progress Bit 2 0x04 Pressure Calibration in Progress Bit 4 0x08 Setting Spool Offset Bit 5 0x20 Pressure Calibration Required Bit 6 0x40 Stroke Calibration Required SIG FLAGS Bit 0 0X01 RUN Begin Signature Bit 1 0x02 Signature Complete Bit 2 0x04 TEST REPEAT Mode Bit 3 0x08 Rum Ram Signature Bit 4 0x10 Valve INIT Bit 5 0x 20 End of Singnature Data Encountered Bit 6 0x40 TEST DAC Mode Bit 7 0x80 Run Partial Stroke Test PST LOWS RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Parameter Name Bit or Byte Values Description XD_FSTATE_OPT No Bit 0x00 Fail to Last Known Set Point Bit 1 0x01 Fail Valve Closed Bit 2 0x02 Fail Valve Open CONTROL CONFIG Bit 0 0X01 Local Panel Disabled Bit 1 0x02 Continuous Friction Mode Enabled Bit 2 0x04 For Future Use Bit 3 0x08 Pressure Control Enabled Bit 4 0x10 Pressure Sensor Board Present Bit 5 0x 20 Single Action Enabled Bit 6 0x40 For Future Use Bit 7 0x80 For Future Use MISC CONFIG Bit 0 0X01 For Future Use Bit 1 0x02 For Future Use Bit 2 0x04 For Future Use Bit 3 0x08 For Future Use Bit 4 0x10 For Future Use Bit 5 0x 20 For Future Use Bit 6 0x40 For Future Use Bit 7 0x80 For Future Use USER
169. the travel accumulator The travel accumulator units will be inches If stroke length is 90 degrees for a rotary the travel accumulator will now have units of degree A 0 percent to 100 percent stroke will add 90 to the travel accumulator NOTE Stroke length is for information only Custom Characterization Custom characterization can be thought of as a soft cam The user can choose between an equal percentage quick opening or custom user defined characterization curve using 21 points The control will linearly interpolate between points Points do not have to be equally spaced in order to allow more definition at critical curve areas The Logix 3400MD digital positioner has two modes linear and characterization Linear is a straight 1 1 mapping of command to control command It does not use the 21 point curve definition When custom characterization is disabled the positioner is automatically in linear mode If custom charac terization is enabled the Logix 3400MD digital positioner uses one of the 21 point user defined curves Question Does a default custom characterization curve exist Answer Yes The Logix 3400MD digital positioner comes with a factory default equal percent and quick opening curve in Figure 10 3 NOTE The quick opening curve is the inverse of the equal percent curve Table 10 14 Logix 3400MD Digital Positioner Characteristic Curves CMD_USED 9 5 FINAL VALUE FS Quick Open Equal Percent
170. tions occur between the fieldbus card and positioner card this parameter sets the fail mode of the valve Nothing selected will cause the positioner to hold the last known command should a loss of communications occurs STROKE TIME UP Allows the user to limit the stroking speed of the positioner Input the number of seconds for the desired opening stroke speed Disable this feature by writing 0 to the variable STROKE TIME DN Allows the user to limit the stroking speed of the positioner Input the number of seconds for the desired closing stroke speed Disable this feature by writing 0 to the variable CURVE SELECT This parameter allows the user to select what type of characterization curves the positioner will use The selections are Equal Percent Quick Open or Custom If Custom is selected the parameters CURVEX and CURVEY must be initialized NVRAM WRITE CYCLES This is a diagnostic parameter that allows the user to monitor the number of times the NVRAM is written to This can be a useful diagnostic tool for checking if the host system is writing to the Fieldbus board memory too often This is often a configura tion error in the host system setup Excessive write cycles can cause configuration upsets and possible communications slowdowns and errors It also will shorten the operational life of a Fieldbus device by exceeding the finite number of write cycles NVRAM chips can be used reliably to These devices typically have a minimum 10 000 000 writ
171. ts Brand Tuning Set GAIN LOWER GAIN UPPER GAIN MULT Igain Comparable Actuator Valtek VFactory_A 1 00 2 00 0 05 10 0 25 sq in VFactory_B 1 00 2 50 0 05 10 0 50 sq in VFactory C 2 00 3 00 0 05 10 0 100 sq in VFactory D 4 00 5 00 0 05 10 0 200 sq in VFactory E 4 00 7 00 0 05 10 0 300 sq in Kammer Trooper 48 0 40 0 50 0 05 25 0 31 sq in Trooper 49 3 00 4 00 0 05 10 0 77 5 sq in Automax R1 0 30 0 50 0 05 10 0 3 to 5 sq in R2 1 00 1 50 0 05 10 0 9 to 12 sq in R3 1 30 2 00 0 05 10 0 16 to 19 sq in R4 2 00 2 50 0 05 10 0 27 to 37 sq in R5 2 50 3 60 0 05 10 0 48 to 75 sq in R6 4 00 5 00 0 05 10 0 109 sq in Spool Valve The spool valve is a four way directional valve with precision features to provide optimal control and low air consumption To help prevent spool valve malfunction the positioner supply air must conform to ISA Standard 57 3 a dew point at least 18 degrees below ambient temperature particle size below 1 microns oil content not to exceed 1 part per million Flowserve s standard coalescing filter is highly recommended to help meet these require ments Small particles oil that has varnished corrosion ice burrs and extreme wear could cause the spool valve to act abnormally If the spool valve is suspected of sticking it can be inspected by performing the following 1 Make sure the valve is bypassed or in a safe condition 2 Disconnect
172. wn depending upon the deviation The inner loop then quickly adjusts the spool position The actuator pressures change and the stem begins to move The stem movement reduces the deviation between control command and stem position This process continues until the deviation goes to zero The control algorithm is both proportional and integral This algorithm will be further explained later in the document A more detailed example to explain the control function follows Assume the following configuration e Unit will receive its command from the FBAP e Custom characterization is disabled therefore characterization is linear 11 12 F LOWS E RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 we e limits or MPC functions are disabled e Valve has zero deviation with a present input command of 50 percent e Actuator is tubed air to open Given these conditions 50 percent represents a command of 50 percent Custom characterization is disabled so the command is passed 1 1 to the FINAL VALUE Since zero deviation exists the stem position is also at 50 percent With the stem at the desired position the spool valve will be at a position in which no air flow is allowed to either side of the actuator This is commonly called the null or balanced spool position Upon a change in the command from 50 percent to 75 percent the positioner sees this as a command of 75 percent With linear characterization the FINAL VALUE becomes 75 percent Devi
173. xt and help procedures e Maintenance calibration and other necessary operation information 65 66 F LOWSE RVE Logix 3400MD Digital Positioner LGENIM3405 02 11 13 Ne e Methods Wizard to help configure and commission the positioner Standard and Device specific DD Standard DD descriptions for function blocks and transducer blocks are maintained by the Fieldbus Foundation These descriptions can be used as part of a field device DD by manufacturers to describe the standard features of their devices Device specific descriptions are devel oped by manufacturers to describe custom features which are unique to that particular device These two types of DDs the standard and device specific can then be combined to provide a complete DD for the field device 8 21 Object Dictionary Object Dictionary Description AP objects are described in the Object Dictionary OD with each entry describing an individual AP object and its message data The message data may consist of a number of characteristics defined for that particular object The OD allows the FBAP of a device to be visible to the fieldbus communications system Refer to the Fieldbus documentation for more information about OD 8 22 System Management System Management SM operates on special objects in the System Management Information Base SMIB which is part of the Management Virtual Field Device VFD System Management Key Features The key features of system management
174. ys defined as the valve open position Next the command value is passed through a characterization limits algorithm block The positioner no longer uses cams or other mechanical means to characterize the output of the positioner This function is done in software which allows for in the field customer adjustment The positioner has two basic modes linear and custom characterization In linear mode the command signal is passed straight through to the control algorithm in a 1 1 transfer If custom characterization is enabled the command source is mapped to a new output curve via a 21 point user defined curve In addi tion two user defined features Soft Limits and MPC Minimum Position Cutoff in fieldbus terminology these are called FINAL VALUE CUTOFF HI and ANAL VALUE LO may affect the final command signal The actual command being used to position the stem is called FINAL VALUE The FINAL VALUE is the actual positioning command after any characterization or user limits have been evaluated The Logix 3400MD digital positioner uses a two stage stem positioning algorithm The two stages are comprised of an inner loop spool control and an outer loop stem position control Referring again to Figure 1 3 a stem position sensor provides a measurement of the stem movement The control command is compared against the stem position If any deviation exists the control algorithm sends a signal to the inner loop control to move the spool up or do

Logix 3400MD Digital Positioner User Instructions

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