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1771-6.5.119, Intrinsically Safe Fast MillivoltInput Module User Manual

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1. keying bands 16 18 22 24 26 28 30 32 backplane connector 44835 wiring method that complies with the governing electrical WARNING When used in a Class Division 2 hazardous location this equipment must be mounted in a suitable enclosure with proper codes Complete the following steps to install the module in the I O chassis 1 Remove power from the 1771 chassis hazardous location installations Be sure that power is removed before proceeding WARNING If you insert or remove the module while backplane power is on an electrical arc can occur This could cause an explosion in Publication 1771 6 5 119 2 6 Install the Module Publication 1771 6 5 119 2 On the 1771 chassis lift the locking bar or locking tab for the desired slot 1771 Series B Chassis locking bar pin 19809 C 3 Attach the wiring arm 1771 WD to the horizontal bar at the bottom of the chassis 1771 WD horizontal bar 17643 The wiring arm pivots upward and connects with the module so you can install or remove the module without disconnecting the wires Place the module in the plastic guides at the top and bottom of the chassis Using firm and even pressure push the module into the slot until it is firmly seated in the chassis Snap the locking bar or tab over the module to secure it Verify that the locking bar pi
2. FILE XXXX XXXX Rungs 2 and 3 These rungs are the conditioning block transfer rungs Include all the input conditioning shown You can replace the pushbutton with a timer done bit to initiate the block transfer in the example program write on a timed basis You can also use any storage bit in memory Extended Input Range In any application where the inputs use the extended linear range the program must monitor the overrange and underrange bits especially when 0 to 9999 BCD scaling is used The output data can rollover past 9999 at Vin 50m V to 0000 at Vin gt 50mV Publication 1771 6 5 119 Module Programming 3 5 Module Scan Time Scan time is defined as the amount of time it takes for the input module to read the input channels and place new data into the data buffer Scan time for your module is shown below End of Module available Block Transfer Write to perform block transfer m i Pg rA Block i Calibration Transfer Configure 1st Scan Channels Channels Time Write Time Time i 1 2 3 4 5 6 7 8 9 10 The following description references the sequence numbers in the illustration Following an initial self calibration 1 a block transfer write 2 and a configuration set up 3 the module will scan the inputs 4 and fill the data buffer 5 Write block transfers therefore should only be performed when the module is being configured or calib
3. SUJAOSC lt s BelloA eyeieuef 10 esn jou jsnw epis ayes j eorsuimur uou eui 0 peyoeuuoo jueuudinb3 UO E90 BY JO e qejins eJnsojoue ue ul p lle su eq eys pue SWal LZZb Hed 8P09 eoujoe 3 ueipeue eui YIM e9uepJo99e ul pej ejsur eg eys ejnpoul SWAI LZZE 34L V VV VV VV V jeuueu S uoee Jo siajowesed e pue e9 eu mojaq aq 1snui eouejonpul pue eouejoedeo ejqe9 ejqeo pepunolB pepelus e esn snw jeuueuo ejes Ajeorsuujul uoe3 OO c L OR 0 sjueuoduioo Buneu u B Jo Buoys ABieue urejuoo JOU op jeu seoiep 13410 10 sejdnooouueu 0 pejoeuuoo ueuM HWOZ 1 pue AUOL 2 vulor 9S AZ 8 90A Jo sjejeurejed Ajnue uim SYND ejes Ajeorsuuui SEPIA S8JON q pue 5 g v sanou5 q pue 5 g v sanouS Z AIG I SSW19 10 SNOGYVZVH NON L AIG I SSV TO sajou eDueu5 V N L 31vq 13a alvq N3 NOlLdIHoS3G ON O23 Eg SNOISIA3H Publication 1771 6 5 119 E 2 Installation Drawing Publication 1771 6 5 119 Rockwell Automation Support www rockwellautomation com Rockwell Automation provides technical information on the Web to assist you in using its products At http www rockwellautomation com support you can find technical manuals a knowledge base of FAQs technical and application notes sample code and links to software service packs and a MySupport feature that you can customize to make the best use of these tools For an additional level o
4. 6 thru 21 Bits 00 15 Minimum and maximum scaling values for each channel Enter in same Bits 00 17 format as data format Chapter Summar y In this chapter you learned how to configure your module s hardware condition your inputs and enter your data Publication 1771 6 5 119 Chapter 5 RE d o d Module Status and Input Data Chapter Objectives In this chapter you will read about reading data from your module input module read block format Reading Data From Your Block transfer read programming moves status and data from the Module input module to the processor s data table in one I O scan below The processor s user program initiates the request to transfer data from the input module to the processor Decimal Bit 15 14 13 12 vt 10 09 08 or os os 04 o5 oz 07 oo etal Bit 7 16 5 94 13 12 tv 10 or 06 05 o4 o3 c2 OF o0 Diagnostics wued Te 7 e s 4 8 2 Data underrange for channels 1 thru 8 ws jej 7r se s s 2 Data overrange for channels 1 thru 8 ea ooo Remarks Publication 1771 6 5 119 5 2 Module Status and Input Data Block Transfer with the Fast Millivolt Input Module Chapter Summary Publication 1771 6 5 119 Word Word 1 Word 2 Word 3 Word 4 Words 5 thru 12 Your module communicates with your processor through bidirectional block transfers A bidirectional block transfer is the seq
5. Checking Operation of Your Input Module You can check operation of your input module by programming a simple rung and checking data values Proceed as follows 1 Program the following rung into your ladder logic or user program BTR Enable Bit Module Address Length 12 Publication 1771 6 5 119 1 4 Overview of the Intrinsically Safe Fast Millivolt Input Module Extended Input Range Chapter Summary Publication 1771 6 5 119 2 Place the PLC in run mode and observe data values in words 5 through 12 Your module is operating correctly if it is returning data in these words NOTE The module is operating in default mode which is binary data type and 0 4095 scaling ATTENTION Do not use this data for control purposes until you have read and understood the first six chapters of this manual You must understand how the data acts under all circumstances to prevent unintended machine operation which could result in injury to personnel or damage to your process 3 Proceed with Chapters 2 through 7 of this manual In any application where the inputs use the extended linear range the program must monitor the overrange and underrange bits especially when 0 to 9999 BCD scaling is used The output data can rollover past 9999 at Vin 50m V to 0000 at Vin gt 50mV In this chapter you read about the functional aspects of the input module and how the module communicates with programmable controllers
6. 1 414 382 4444 Europe Middle East Africa Rockwell Automation Vorstlaan Boulevard du Souverain 36 1170 Brussels Belgium Tel 32 2 663 0600 Fax 32 2 663 0640 Asia Pacific Rockwell Automation Level 14 Core F Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication 1771 6 5 119 April 2009 Supersedes Publication 1771 6 5 119 January 1996 PN 40187 Copyright 2009 Rockwell Automation Inc All rights reserved Printed in the U S A
7. Chapter Objectives Before You Install the Module Install the Module Chapter 2 This chapter gives you information on calculating the chassis power requirement choosing the module s location in the 1771 chassis keying a chassis slot for your module wiring the input module s field wiring arm installing the input module Before you insert the module into the chassis you must complete the following Action required See Calculate the power requirements of all modules in each chassis Appendix A Specifications Determine where to place the module in the 1 0 chassis Module Location in the 1771 Chassis on page 4 Key the backplane connector in the 1 0 Key the Backplane Connector on page 5 chassis This module isa modular component of the 1771 1 0 system requiring a properly installed system chassis Refer to publication 1771 IN075 for detailed information on acceptable chassis along with proper installation and grounding requirements Limit the maximum adjacent slot power dissipation to 10 W maximum Publication 1771 6 5 119 2 2 Install the Module ATTENTION Publication 1771 6 5 119 European Hazardous Location Approval ASSOCIATED APPARATUS Certification The following applies when the product bears the Ex or EEx Marking This equipment is intended for use in potentially explosive atmospheres as defined by European Union Directive 94 9 EC The LCIE Laboratoire C
8. Place Value Decimal 2 8 2 4 21 2 29 1 Equivalent Binary should be used with the PLC 2 family of processors when performing computations in the processor The 12 bit binary format uses an arrangement of 12 binary digits to represent a decimal number ranging from 0 to 4095 The decimal equivalent of a 12 bit binary number is determined by multiplying the binary digit 0 or 1 by its corresponding place value and adding these numbers together Example The following binary number is equal to decimal 3167 211 210 29 58 27 26 95 24 232221 20 1100 0101 111 1 31671 Appendix D Block Transfer Mini PLC 2 and PLC 2 20 Processors Multiple GET Instructions Programming multiple GET instructions is similar to block format Mini PLC 2 and PLC 2 20 instructions programmed for other PLC 2 family processors The Processors data table maps are identical and the way information is addressed and stored in processor memory is the same The only difference is in how you set up block transfer read instructions in your program For multiple GET instructions individual rungs of ladder logic are used instead of a single rung with a block transfer instruction A sample rung using multiple GET instructions is shown in and described in the following paragraphs Multiple GET Instructions 113 030 130 012 Rung 1 j 120 060 07 02 012 Rung 2 y 01 012 Rung 3 02 Rung 1 This rung is used to set four conditions Exa
9. after a write block transfer It also contains an under range or over range bit bit 01 that is set when any input is under or over range An invalid scaling filtering data bit bit 02 will be set if invalid scaling data is entered into any of the minimum maximum scaling value words If invalid values are entered into the minimum or maximum scaling words the corresponding read block transfer input channel word will be set to 0000 Bit 02 will also be set if an invalid digital filter value is entered e g 1F If an invalid digital filter value is entered the module will not perform digital filtering 7 2 Troubleshooting Indicator Status color Module run ON green Module fault OFF red Module run OFF green Module fault ON red Neither indicator ON Publication 1771 6 5 119 The real time sample RTS time out bit bit 03 is set if the module is configured for RTS and a block transfer read has not occurred within the user programmed period Word 2 Word 2 provides for under range conditions When a particular channel input is under range the associated bit will be set As long as inputs are under range the associated bit will remain set Bit 00 corresponds to channel 1 bit 01 to channel 2 etc Word 3 Word 3 provides for over range conditions When a particular channel input is over range the associated bit will be set As long as inputs are in range the associated bit will remain reset Bit 00 corresponds to
10. avec ce produit ela substitution de composants peut rendre cet quipement inadapt une utilisation en environnement de Classe I Division 2 e S assurer que l environnement est class non dangereux avant de changer les piles Place the module in any slot of the 1771 chassis except for the left most slot This slot is reserved for the controller or adapter We recommend the following when placing your modules Group modules to minimize adverse affects from radiated electrical noise and heat Group analog input and low voltage DC modules away from AC modules or high voltage DC modules to minimize electrical noise interference Do not place this module in the same I O group with a discrete high density I O module when using 2 slot addressing This module uses a byte in both the input and output image tables for block transfer Publication 1771 6 5 119 Key the Backplane Connector Install the Module and Wiring Arm Install the Module 2 5 With your fingers insert the keying bands in the backplane connector to correspond to the key slots on the module This prevents you from inserting the wrong module into the slot For this module place the keying bands between the following connectors e 20 and 22 e 28 and 30 chassis
11. constant achieves 63 2 of the remaining response At Mu Va A t T TA Xn 2 Yn 1 Where Y present output filtered peak voltage PV Yn 1 previous output filtered PV At module channel update time seconds TA digital filter time constant seconds Xn present input unfiltered PV Unfiltered Input TA 0 01 sec TA 0 5 sec otre TA 0 99 sec 0 0 01 0 5 0 99 Time in Seconds 16723 Digital filter time constant values of 00 BCD to 99 BCD 00 BCD no filter 99 BCD maximum filter are set in bits 00 through 07 of word 3 of the block transfer write data table If an invalid digital filter value is entered e g 1F the invalid scaling filtering data bit in the BTR status area will be set If an invalid digital filter value is entered the module will not perform digital filtering If you choose to use the digital filtering feature the filter time constant value chosen will apply to all input signals Module Configuration 4 3 Real Time Sampling The real time sampling RTS mode of operation provides data from a fixed time period for use by the processor It is available on all analog input modules RTS is invaluable for time based functions such as PID and totalization in the PLC It allows accurate time based calculations in local or remote I O racks In the RTS mode the module scans and updates its inputs at a user defined time interval AT instead of the default interval The mod
12. in this manual Reproduction of the contents of this manual in whole or in part without written permission of Rockwell Automation Inc is prohibited Throughout this manual when necessary we use notes to make you aware of safety considerations Identifies information about practices or circumstances that can cause an explosion in a hazardous environment which may lead to personal injury or death property damage or economic loss IMPORTANT Identifies information that is critical for successful application and understanding of the product ATTENTION Identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss Attentions help you identify a hazard avoid a hazard and recognize the consequence SHOCK HAZARD Labels may be on or inside the equipment for example a drive or motor to alert people that dangerous voltage may be present BURN HAZARD Labels may be on or inside the equipment for example a drive or motor to alert people that surfaces may reach dangerous temperatures 001 Allen Bradley Rockwell Automation and TechConnect are trademarks of Rockwell Automation Inc Trademarks not belonging to Rockwell Automation are property of their respective companies About this Manual Overview of the Intrinsically Safe Fast Millivolt Input Module Install the Module Module Programming Table of Contents Preface PULDOSE
13. interval between block transfer reads is the same as the total input update time for each analog input module Features The 1771 IFMS module senses 8 differential analog inputs and converts them to a proportional four digit BCD or fifteen bit binary value The module reads a 0 to 50mV input signal It can read slightly overrange or slightly underrange voltages This module s features include e amp differential inputs on one card e Selectable real time sampling e Selectable scaling to engineering units e Selectable digital filtering e Oto 50mV input range with extended linear range above 50m V and below 0m V Publication 1771 6 5 119 1 2 Overview of the Intrinsically Safe Fast Millivolt Input Module How Analog Modules Communicate with Programmable Controllers Accuracy Publication 1771 6 5 119 The processor transfers data to and from the module using BTW block transfer write and BTR block transfer read instructions in your ladder diagram program These instructions let the processor obtain input values and status from the module and let you establish the module s mode of operation 1 The processor transfers your configuration data and calibration values to the module using a block transfer write instruction 2 External devices generate analog signals that are transmitted to the module Input Module PC Processor The module converts analog signals into binary or BCD format and stores theses v
14. must be programmed to specify a binary value equal to the number of words to be transferred In the example below if your input module is set up to transfer 6 words you would set bits 01 and 02 of the lower image table control byte The binary equivalent of 6 words is 000110 You would also set bit 07 when programming the module for block transfer read operations Bit 06 is used when block transfer write operations are required Block Transfer Read 6 Words Read Enable Bit from Module z 010 Data Table Output Image Table Control Byte Contains Read 012 Enable Bit and Block Length in Binary Code 027 Data Address 030 Contains Module Address in BCD 12172 Binary Bit Pattern Lower Output Image Table Byte 1771 6 5 119 D 4 1771 6 5 119 Block Transfer Mini PLC 2 and PLC 2 20 Processors Appendix E Installation Drawing SINE LZZLL V09S Aaj peig U9 V NOLLNOAXA 41 V ANHOANOO Jl41L439 ONIMYHQ NOLLVTIVLSNI uonewony JJIMYIOM qasn LON 8 HO 8HO 8 8 Z NOWWOOD HO 4 HO 9 H 9 HO 9 9 S NONWOO SHO Le 1 Le Le Le Le Le ES le S HO Ce Le Le ES Le SnopJezeu uou aq 0 UMOU SI Bale 3U JO JJO peuoiiMs u q seu amod ssejun ejnpouu 1oeuuoosip 10 12euuoo JOU oq PyeZeH uorso dx3 BUIUIEM HO p H t8 NONWOD H HO G HO Z HO 8 NOWNOO L HO L HO
15. the write block transfer data file You want to enter examine word 1 1 Press SHIFT MODE to display your ladder diagram on the industrial terminal 2 Press DD 03 0 ENTER to display the block transfer write file The industrial terminal screen should look like this START W0003 0000 WORD 0 1 2 3 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00009 00090008 00000000 00000000 00000000 00000000 00000 00004 00010 00014 00020 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 DATA MONITOR S W03 0 PROG VO OFF NOFORCES NOEDITS RUNG RMOO0000 MEM PROT OFF Notice the highlighted block of zeroes This highlighted block is the cursor It should be in the same place as it appears in the illustration If not you can move it to the desired position with the cursor control keys Once you have the highlighted cursor in the right place you can go on to step 3 3 Enter the data corresponding to your bit selection in words 0 through 4 PLC 2 Family Processors Programming Examples B 3 4 When you have entered your data press ENTER If you make a mistake make sure the cursor is over the word you desire to change Enter the correct data and press ENTER 5 Press CANCEL COMMAND This return
16. with the terminology we use If not read the user manual for your processor before reading this manual In this manual we refer to the individual 1771 IFMS module as the module or the IFMS the programmable controller as the controller or the processor The contents of this manual are as follows Chapter Overview of the Intrinsically Safe Fast Millivolt Input module 2 Installing Your Module 3 Module Programming 4 Configuring Your Module 5 Module Status and Input Data Calibrating Your Module eo 7 Troubleshooting y What s Covered features of the module how the module communicates with programmable controllers how to calculate chassis power requirements choose module location wire the module s field wiring arm install the module block transfer programming sample programs extended input ranges module scan times how to configure your module condition your inputs enter your data how to read data from your module block transfer format what tools and equipment you need how to calibrate the module how to use the indicators for troubleshooting Publication 1771 6 5 119 P 2 About This Manual Specifications Module specifications Programming Examples Sample programs for the PLC processors Data Formats Information on BCD and 12 bit Binary Bloc
17. 0 Nm 7 9 Ibein Torque Enclosure Type Rating None open style North American Temp Code T6 f Use this Conductor Category information for planning conductor routing Refer to Industrial Automation Wiring and Grounding Guidelines publication 1770 4 1 Environmental Specifications Attribute Operating Temperature Value IEC 60068 2 1 Test Ad Operating Cold IEC 60068 2 2 Test Bd Operating Dry Heat IEC 60068 2 14 Test Nb Operating Thermal Shock 0 60 C 32 140 F Non Operating Temperature IEC 60068 2 1 Test Ab Unpackaged Non operating Cold IEC 60068 2 2 Test Bb Unpackaged Non operating Dry Heat IEC 60068 2 14 Test Na Unpackaged Non operating Thermal Shock 40 85 C 40 185 F Relative Humidity IEC 60068 2 30 Test Db Unpackaged Damp Heat 5 95 noncondensing Vibration IEC 60068 2 6 Test Fc Operating 2g 10 500 Hz Operating Shock IEC 60068 2 27 Test Ea Unpackaged Shock 15g Non Operating Shock IEC 60068 2 27 Test Ea Unpackaged Shock 30g Emissions CISPR 11 Group 1 Class A with appropriate enclosure ESD Immunity IEC 61000 4 2 6 kV indirect contact discharges 8 kV air discharges Radiated RF Immunity IEC 61000 4 3 10V m with 1 kHz sine wave 8096 AM from 80 2000 MHz 10V m with 200 Hz 5096 Pulse 10096 AM at 900 MHz 10V m with 200 Hz 5096 Pulse 10096 AM at 1890 MHz 3V m with 1 kHz sine wave 8096 AM from
18. 2000 2700 MHz EFT B Immunity IEC 61000 4 4 1 kV at 5 kHz on signal ports Conducted RF Immunity IEC 61000 4 6 10V rms with 1 kHz sine wave 8096 AM from 150 kHz 80 MHz Specifications A 3 Certifications Attribute Value c UL us UL Listed Industrial Control Equipment certified for US and Canada See UL File E112294 CSA CSA Certified Process Control Equipment for Class Division 2 Group A B C D Hazardous Locations See CSA File LR88915 CE European Union 2004 108 EC EMC Directive compliant with EN 61326 1 Meas Control Lab Industrial Requirements EN 61000 6 2 Industrial Immunity EN 61000 6 4 Industrial Emissions EN 61131 2 Programmable Controllers Clause 8 Zone A amp B C Tick Australian Radiocommunications Act compliant with AS NZS CISPR 11 Industrial Emissions Ex European Union 94 9 EC ATEX Directive compliant with EN 60079 11 Explosive Atmospheres Protection i EN 60079 0 General Requirements as associated apparatus with intrinsically safe circuits II 1 G Ex ia IIC See the Product Certification link at http Awww ab com for Declarations of Conformity Certificates and other certification details Publication 1771 6 5 119 A 4 Specifications Publication 1771 6 5 119 Appendix B Programming Examples Sample Progr ams for the The following are sample programs for entering data in the Analog Input Module configuration words of the write block transfe
19. 3 458 ted o x au med pepe P 1 Audience C ut aeter exe pp 6 top ie ema deeds P 1 VOCAL ee a tae oq ROLE MA P 1 What This Manual Contains suena Ce OR P 1 CONVENTIONS Lev so uq no ee ve Pla Ge edo HAR eas P2 Chapter 1 Chapter Objectives x aes qose ad ded EC eq NE ed 1 1 Module Description tyes doo GO a Qe boe 1 1 CANNES o kou doe Yu teu end ovS ESI ER greeny ex 1 1 How Analog Modules Communicate with Programmable Controllers _ 1 2 ACCULAGyo ev Ps CA ERE C er i m V Eo 1 2 Getting Started 1 3 Installing Your Module 4 2 ue ce cem oett et 1 3 Extended Input 96 i ux adr Res DES CN ve 1 4 Chapter Summary vius rti ie SF oF BS 4 BRIT BS DES oo 1 4 Chapter 2 Chapter Objectives ua d race Dod indo ee e tea 2 1 Before You Install the Module 2 1 Module Location in the 1771 Chassis 2 4 Key the Backplane Connector ique sas sao egy ere 2 5 Install the Module and Wiring Arm 2 5 MW ire the Modulens iro ao vdd DEAS e Su tmd CR PERPE 2 7 Ground the Module cde puse Tow Ble nem X oed S 2 8 Chassis Ground o bates Ted oe pu e eset ie edi 2 8 Single point Grounding 2 9 Status Indicator Behavior 2 10 Chapter Summary 2 10 Chapter 3 Chapter ObDJectives u g aot siad ok pha uo qo Y s ot es 3 1 Block Transfer Programming 3 1 PLC 5 Program Ex
20. Do not touch circuit components inside the equipment e Use a static safe workstation if available eStore the equipment in appropriate static safe packaging when not in use The optional 17xx xxx accessories are not certified for use in hazardous location applications Use these optional accessories only in nonhazardous location applications Publication 1771 6 5 119 2 4 Install the Module North American Hazardous Location Approval The following information applies when operating this equipment in hazardous locations Products marked CL I DIV 2 GP A B C D are suitable for use in Class Division 2 Groups A B C D Hazardous Locations and nonhazardous locations only Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code When combining products within a system the most adverse temperature code lowest T number may be used to help determine the overall temperature code of the system Combinations of equipment in your System are subject to investigation by the local Authority Having Jurisdiction at the time of installation Informations sur l utilisation de cet quipement en environnements dangereux Les produits marqu s CL I DIV 2 GP A B C D ne conviennent qu une utilisation en environnements de Classe I Division 2 Groupes A B C D dangereux et non dangereux Chaque produit est livr avec des marquages sur sa plaque d identification qui indiqu
21. Intrinsically Safe Fast Millivolt Input Module User Manual Catalog Numbers 1771 IFMS Rockwell ALLEN BRADLEY ROCKWELL SOFTWARE Automation Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment Safety Guidelines for the Application Installation and Maintenance of Solid State Controls publication SGI 1 1 available from your local Rockwell Automation sales office or online at http www rockwellautomation com literature describes some important differences between solid state equipment and hard wired electromechanical devices Because of this difference and also because of the wide variety of uses for solid state equipment all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable In no event will Rockwell Automation Inc be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment The examples and diagrams in this manual are included solely for illustrative purposes Because of the many variables and requirements associated with any particular installation Rockwell Automation Inc cannot assume responsibility or liability for actual use based on the examples and diagrams No patent liability is assumed by Rockwell Automation Inc with respect to use of information circuits equipment or software described
22. Replace the covers and reinstall the IFM module in the chassis Publication 1771 6 5 119 Chapter Objectives Diagnostics Reported by the Module Chapter 7 Troubleshooting In this chapter we describe how to troubleshoot your module by observing the indicators and by monitoring status bits reported to the processor At power up the module turns on the RED indicator as a lamp test then checks for correct RAM operation e firmware errors Thereafter the module turns off the red indicator and lights the green RUN indicator when operating without fault If it detects a major fault condition the red FAULT indicator will light The module also reports status and specific faults if they occur in every transfer of data to the PC processor Monitor the green and red indicators and status bits in word 1 of the BTR file when troubleshooting your module Analog Input Module Diagnostic bits in the read block transfer status words provide diagnostic capabilities Word 1 provides power up and valid data status Words 2 and 3 provide channel data status If a module on board self test fault occurs block transfers will be inhibited the red fault FLT will light and the green run RUN light will go out Word 1 Diagnostics word 1 is the first data word in the read block transfer file for transfer to the central processor It contains a power up bit bit 00 that is set 1 when the module is first powered up It is reset 0
23. TH x ERROR CNTL XXXX XXXX BLOCK TRANSFER e ENABLE PUSHBUTTON Mice ci BLOCK XFER WRITE EN RACK xx 0 POWER UP eee SEG e MODULE x xox HON DATA LENGTH CNTL XXXX XXXX x ERROR XXXX XXXX Publication 1771 6 5 119 3 4 Module Programming PLC 2 Program Example Note that PLC 2 processors that do not have the block transfer instruction must use the GET GET block transfer format which is outlined in Appendix D Block Transfer Enable Read Done Bit FILE TO FILE MOVE EN Rung Descriptions 1 Rung 1 Block transfer read buffer the file to file move instruction holds the block transfer read BTR data file A until the processor checks the data integrity 1 Ifthe data was successfully transferred the processor energizes the BTR done bit initiating a data transfer to the 2 buffer file R for use in the program COUNTER ADDR XXX 17 POSITION XXX FILE LENGTH XXX Done FILE A YYYY XXXX N FILE R XXX XXX 15 RATE PER SCAN XXX BTR BLOCK XFER READ DATA ADDR XXX MODULE ADDR RGS BLOCK LENGTH XX FILE XXXX XXXX BTR Done Bit 2 If the data is corrupted during the BTR operation the BTR done bit is not energized and data is not transferred to the BTW Enable buffer file In this case the data 3 BLOCK XFER WRITE EN in the BTR file will be DATA ADDR XXX overwritten by data from the MODULE ADDR RGS Wein Pushbutton BLOCK LENGTH xx Done
24. a to engineering units for example gallons minute degrees C degrees F and pounds square inch Unscaled data in the module has a range of 0 through 4095 for 0 to 50mV range The format of scaled data is 4 digit BCD or 15 bit binary The resolution at the module of scaled values is the same as for unscaled data one part in 4095 Resolution at the processor however is determined by the scaled ranges i e if 0 minimum and 500 maximum resolution is now 1 part in 500 Each input channel can be scaled independently of the other channels Implementing the Scaling Feature You implement the scaling feature by inserting minimum and maximum scaled values in the appropriate configuration words of the block transfer write data table See page 4 5 Scaling Ranges The maximum range of the scaling values is 9999 BCD or 32767 binary Typically invalid scaling values are minimum values greater than maximum values or values greater than 9999 in BCD or 32767 in binary If invalid values are entered into the scaling words the corresponding input in the BTR data will be zero and the invalid scaling filtering data bit will be set If the minimum and maximum scaling values are equal the invalid scaling filtering data bit will NOT be set and the corresponding BTR data for that channel will be equal to the scaling values Channels BTRFile BTW File Used Length Length xe NUM MEE Important Use decimally addressed bit locat
25. alues until the processor requests their transfer When instructed by your ladder program the processor performs a read block transfer of the values and stores them in a data table The processor and module determine that the transfer was made without error and that input values are within specified range Your ladder program can use and or move the data if valid before it is written over by the transfer of new data in a subsequent transfer Your ladder program should allow write block transfers to the module only when enabled by the operator at power up The accuracy of the fast millivolt input module is described in Appendix A Overview of the Intrinsically Safe Fast Millivolt Input Module 1 3 Getting Started Your input module package contains the following items Please check that each part is included and correct before proceeding 1771 4 FMS Field Wiring Arm User s Manual Module Cat No 1771 WG Publication 1771 6 5 119 Installing Your Module 1 First turn off power to the I O chassis 2 Key the backplane to accept only this kind of module 3 Lift the chassis locking bar and slide the module into the chassis Press firmly to seat the module into the backplane connectors I Chapter 2 4 Install the field wiring arm on the chassis 5 Swing the wiring arm up to connect with the circuit board on the front of the module Press firmly to seat and lock 6 Turn on power to the chassis
26. ample 3 2 PLC 3 Program Example 3 3 PLC 2 Program Example 3 4 Extended Input Range 3 4 Module Scan Time ES Ai te nee etape a disent 3 5 Chapter SUEDE Les its modems minute sites 3 5 Publication 1771 6 5 119 ii Table of Contents Module Configuration Module Status and Input Data Module Calibration Troubleshooting Specifications Programming Examples Publication 1771 6 5 119 Chapter 4 Chapter DIG eS S qos QUIA qu he ab alee d n d s 4 1 Configuring Your Input Module 4 1 Input Types Gonna pe eoe ad OR HC det e fe ond aedes oe e S 4 1 Digital Filtering 4 2 Real Time Sampling se ete Behe eee ae eee eB eo 4 3 PON M RNC REO NORTE ERR TERES OTRO 4 4 Implementing the Scaling Feature 4 4 Sealino Ranges cus Le XC ED OE XH rh EXE 4 4 Fast Millivolt Input Module Default Settings 4 5 Bit Word Descriptions for the Configuration Block 4 5 Chaplet Summarys 2 bens taber d E wA EC ES in 4 6 Chapter 5 Chapter Objectives pesant a eee Sepus ae os 5 1 Reading Data From Your Module 5 1 Block Transfer with the Fast Millivolt Input Module 5 2 BIR Formati su ale Ele pe EDEN Sete eae Dake edat 5 2 Chapter SLA u pe iro races Quinua k up Pee n 5 2 Chapter 6 Chapter Objecive so 4s te a e b eot a p IRR qhu 6 1 Wools edic Equipm
27. caling The PLC 2 family write block transfer data file should look like this DATA ADDR 030 POSITION 001 002 003 004 005 006 007 008 BINARY DATA MONITOR BLOCK LENGTH 21 BLOCK XFER WRITE MODULE ADDR 110 FILE 400 424 FILE DATA 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Appendix C Data Formats 4 Digit Binary Coded The 4 digit BCD format uses an arrangement of 16 binary digits to Decimal BCD represent a 4 digit decimal number from 0000 to 9999 The BCD format is used when the input values are to be displayed for operator viewing Each group of four binary digits is used to represent a number from 0 to 9 The place values for each group of digits are 2 2 22 and 2 as shown below The decimal equivalent for a group of four binary digits is determined by multiplying the binary digit by its corresponding place value and adding these numbers 0X23 0 0X22 0 TEI 1X20 1 0X28 0 oxz 0ll 1X21 22 0X20 0 t ox22 oi 1x2 2 1X23 8 0X22 0 ox2 0f 1X2921 of of of f of of f of of of i s of of v w k W n 1 2 3 9 12955 1 1771 6 5 119 C 2 Data Formats 12 bit Binary 1771 6 5 119 Binary coded decimal equivalents are shown below
28. channel 1 bit 01 to channel 2 etc The table below lists the probable cause and recommended actions for a number of common trouble indications Description of Fault or System Status Action to Take Normal Indication None Incorrect data in final storage word locations in processor s data table possible severed or disconnected input cable associated with the affected channels Repair or replace cable Condition module for desired format BCD or binary enter correct data and initiate another block transfer write Input module is conditioned for BCD instead of binary or vice versa or invalid scaling values chosen Block transfers are not being performed processor Place processor in run mode Recycle power is in program mode when module powers up Replace faulty module if necessary Ladder diagram program error Read and write block transfer both enabled in PLC 2 processor Wrong module address in block transfer instruction or wrong BTR or BTW lengths chosen Debug program Equipment failure PC processor adapter module Isolate system component that has failed and etc replace it Hardware failure in module Return module for repair Turn power OFF Remove and reinsert module into Appendix A Specifications Intrinsically Safe Fast Millivolt Input Module 1771 IFMS Attribute Value Inputs 8 differential low levels Input voltage range 0 50 mV Res
29. ck transfer read and write instructions The BTR enable bit in rung 1 being false initiates the first read block transfer After the first read block transfer the module performs a block transfer write and then does continuous block transfer reads until the pushbutton is used to request another block transfer write After this single block transfer write is performed the module returns to continuous block transfer reads automatically Module Programming 3 3 PLC 3 Program Example Block transfer instructions with the PLC 3 processor use one binary file in a data table section for module location and other related data This is the block transfer control file The block transfer data file stores data that you want transferred to the module when programming a block transfer write or from the module when programming a block transfer read The address of the block transfer data files are stored in the block transfer control file The industrial terminal prompts you to create a control file when a block transfer instruction is being programmed The same block transfer control file is used for both the read and write instructions for your module A different block transfer control file is required for every module A sample program segment with block transfer instructions is shown below BTR ENABLE BLOCK XFER READ EN BLOCK TRANSFER RACK XXX 12 READ DONE BIT GROUP x DONE l MODULE X XXXX DN DATA xooooox 15 LENG
30. connect grounding conductors to the chassis grounding stud place a star washer under the first lug then place a nut with a captive lock washer on top of each ground lug grounding stud ground lug star washer ground lug VO chassis side plate nut with captive washer 1Use the cup washer if crimp on lugs are not used 19480 Publication 1771 6 5 119 2 9 Install the Module Single point Grounding Extend shield to termination point ZZ ET KY AT NN SNS NN ARR ZAW ASA AS SANSA KEG ZA AAA AV NN Z UNS ze lt ID y TI DIR TALL KK RRE LH HZ Expose just enough cable to adequately terminate inner conductors 55 m 2 o 2 s 5 o 2 vw Rm x 2 ao 2 S27 lt sx o D ou D os a D ET LA TS Shield and AN twisted together 19923 M External tooth washer 10 Thread forming screw Publication 1771 6 5 119 2 10 Install the Module Status Indicator Behavior After applying power to the module the red FLT indicator turns on during a self check If there is not fault the red FLT indicator turns off and the green RUN indicator turns on If a fault occurs at a later time the red FLT indicator turns on again For possible module fault causes and corrective actions see Chapter 8 Trouble
31. d through a group of data table words that are transferred to the module using a block transfer write instruction The software configurable features available with the Intrisically Safe Fast Millivolt Input Module 1771 IFMS are data format e digital filtering e real time sampling scaling to engineering units Data format digital filtering and real time sampling can be configured with a block transfer write of only 3 or 5 words in length You must also indicate what format will be used to read data from your module Typically BCD is selected with PLC 2 processors and binary also referred to as integer or decimal is selected with PLC 3 and PLC 5 processors To select the format set the selection bit as indicated Decimal Bit 10 Octal Bit 12 Data Format Refer to Appendix C for details on Data Format Publication 1771 6 5 119 4 2 Module Configuration Digital Filtering Amplitude Publication 1771 6 5 119 The analog input module has hardware based high frequency filters on all channels to reduce the effect of electrical noise on the input signal Software digital filtering is meant to reduce the effect of process noise on the input signal The digital filter equation is a classic first order lag equation below Using a step input change to illustrate the filter response you can see that when the digital filter constant time elapses 63 2 of the total response is reached Each additional time
32. ent le code de temp rature pour les environnements dangereux Lorsque plusieurs produits sont combin s dans un syst me le code de temp rature le plus d favorable code de temp rature le plus faible peut tre utilis pour d terminer le code de temp rature global du syst me Les combinaisons d quipements dans le syst me sont sujettes inspection par les autorit s locales qualifi es au moment de l installation EXPLOSION HAZARD e Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous e Do not disconnect connections to this equipment unless power has been removed or the area is known to be nonhazardous Secure any external connections that mate to this equipment by using screws sliding latches threaded connectors or other means provided with this product eSubstitution of components may impair suitability for Class I Division 2 elf this product contains batteries they must only be changed in an area known to be nonhazardous Module Location in the 1771 Chassis modules S ue n ES e Couper le courant ou s assurer que l environnement est class non dangereux avant de d brancher l quipement e Couper le courant ou s assurer que l environnement est class non dangereux avant de d brancher les connecteurs Fixer tous les connecteurs externes reli s cet quipement l aide de vis loquets coulissants connecteurs filet s ou autres moyens fournis
33. ent uod tudo edat Does PL 6 1 Hot to Calibrate the Fast Millivolt Input Module 6 1 Adjusting the Internal Offset Voltage 6 2 Chapter 7 Chapter Objectives s a ua u sua be CU Dot ee 7 1 Diagnostics Reported by the Module 7 1 Analog Input Module 7 1 Appendix A ER Seng kap ak n QG DCUM PLA E A 1 Appendix B Sample Programs for the Analog Input Module B 1 PLC 5 Family Processors Lai ie doe ta da ORE eer aw B 1 PLC 3 Family Processors B 2 PLC 2 Family Processors SUL d vas e VET e EU oe Pie dO B 3 Data Formats Block Transfer Mini PLC 2 and PLC 2 20 Processors Installation Drawing Table of Contents iii Appendix C 4 Digit Binary Coded Decimal BCD C 1 C2 BIL BINAY qe a abus nine ut obo ENTRE C 2 Appendix D Mulitple GET Instructions Mini PLC 2 and PLCS2 20 PROCESSORS 5 dado xe La a aa ros D 1 Setting the Block Length Multiple GET Instructions only D 3 Appendix E Publication 1771 6 5 119 iv Table of Contents Publication 1771 6 5 119 Preface Purpose Audience Vocabulary What This Manual Contains About This Manual Use this manual to install and configure your Intrinsically Safe Fast Millivolt Input module cat no 1771 IFMS We assume that you have previously used an Allen Bradley programmable controller that you are familiar with its features and that you are familiar
34. entral des Industries Electriques certifies that this equipment has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of apparatus for use in safe areas with Intrinsically Safe Circuits intended for use in potentially explosive atmospheres given in Annex II to this Directive Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 60079 0 and EN 60079 11 e Equipment connected to the non intrinsically safe side must not use or generate voltages greater than 250V rms e Provides intrinsically safe circuits with entity parameters of Voc 38 2V Isc 40mA Ca 10nF and La 20mH when connected to thermocouples or other devices that do not contain energy storing or generating components e Each intrinsically safe channel must use a shielded grounded cable Cable inductance must be below the Ca and La parameters of each intrinsically safe channel Install the Module 2 3 ATTENTION A ATTENTION Environment and Enclosure This equipment is intended for use in a Pollution Degree 2 industrial environment in overvoltage Category Il applications as defined in IEC 60664 1 at altitudes up to 2000 m 6562 ft without derating This equipment is considered Group 1 Class A industrial equipment according to IEC CISPR 11 Without appropriate precautions there may be difficulties with electromagnetic compatibility in residential and oth
35. er environments due to conducted and radiated disturbances This equipment is supplied as open type equipment It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts The enclosure must have suitable flame retardant properties to prevent or minimize the spread of flame complying with a flame spread rating of 5VA V2 V1 VO or equivalent if non metallic The interior of the enclosure must be accessible only by the use of a tool Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications In addition to this publication see Industrial Automation Wiring and Grounding Guidelines for additional installation requirements Allen Bradley publication 1770 4 1 NEMA Standards 250 and IEC 60529 as applicable for explanations of the degrees of protection provided by different types of enclosure Prevent Electrostatic Discharge This equipment is sensitive to electrostatic discharge which can cause internal damage and affect normal operation Follow these guidelines when you handle this equipment e Touch a grounded object to discharge potential static Wear an approved grounding wriststrap e Do not touch connectors or pins on component boards e
36. f technical phone support for installation configuration and troubleshooting we offer TechConnect support programs For more information contact your local distributor or Rockwell Automation representative or visit http www rockwellautomation com support Installation Assistance If you experience a problem within the first 24 hours of installation please review the information that s contained in this manual You can also contact a special Customer Support number for initial help in getting your product up and running United States 1 440 646 3434 Monday Friday 8am 5pm EST Outside United Please contact your local Rockwell Automation representative for any States technical support issues New Product Satisfaction Return Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility However if your product is not functioning and needs to be returned follow these procedures United States Contact your distributor You must provide a Customer Support case number call the phone number above to obtain one to your distributor in order to complete the return process Outside United Please contact your local Rockwell Automation representative for the States return procedure Power Control and Information Solutions Headquarters Americas Rockwell Automation 1201 South Second Street Milwaukee WI 53204 2496 USA Tel 1 414 382 2000 Fax
37. ions for PLC 5 processors Module Configuration 4 5 Fast Millivolt Input Module If no block transfer write block or a write block length of 3 or 5 Default Settings words with all zeroes is sent to the Intrinsically Safe Analog Input Module 1771 IFMS the module will default to the following configuration e Binary data format norealtime sampling RTS e no filtering e Oto 4095 scaling A block transfer write of length O will default to a length of 21 so scaling values must be entered into the BTW data table Block Transfer Write Configuration Block emassa e T8 T8 7 T8 T5 32 7 T Gam vr ws ws psp pw poor or Word 1 Not used 2 Not used 3 Digital filter 4 Not used 5 Not used 6 Channel one minimum scaling value 7 Channel one maximum scaling value 8 Channel two minimum scaling value 9 Channel two maximum scaling value 10 Channel three minimum scaling value 21 Channel eight maximum scaling value Bit Word Descriptions for the Configuration Block Decimal Bits s word Octal Bits Penmon Digital filter reduces effect of noise on input 00 to 99 BCD Bits 08 09 Not used Bits 10 11 3 Bit 10 Data format matches format of processor Set for BCD 1 reset for Bit 12 Binary 0 See page 4 1 Bits 11 15 Realtime sampling 0 1 to 3 1 sec See page 4 8 for time intervals Bits 13 17 Publication 1771 6 5 119 4 6 Module Configuration Decimal Bits n Word Octal Bits Definition
38. k Transfer Mini PLC 2 and PLC 2 20 Processors How to use GET GET instructions Installation Drawing Copy of drawing 560A 1771 IFMS Conventions We use these conventions in this manual In this manual we show that there is more information about a topic in another chapter in this manual that there is more information about the topic in another manual Publication 1771 6 5 119 Chapter 1 Chapter Objectives Module Description Overview of the Intrinsically Safe Fast Millivolt Input Module This chapter gives you information on e features of the module e how the input module communicates with programmable controllers The 1771 IFMS intrinsically safe fast millivolt input module is an intelligent block transfer module that interfaces analog input signals with any Allen Bradley programmable controllers that have block transfer capability Block transfer programming moves input data words from the module s memory to a designated area in the processor data table in a single scan It also moves configuration words from the processor data table to module memory The input module is a single slot module and requires no external power supply After scanning the analog inputs the input data is converted to a specified data type in a digital format to be transferred to the processor s data table on request The block transfer mode is disabled until this input scan is complete Consequently the minimum
39. m equivalent Alignment Tool Potentiometer Sealant For potentiometer adjustment For sealing pots after adjustment Newark Electronics PN 35F616 5000 N Pulaski Road Chicago IL Organic Products Torque Seal P O Box 928 Irving TX Industrial Terminal and Programming terminal for A B family Cat No 1770 T3 or Cat No Allen Bradley Company Interconnect Cable processors 1784 145 T50 etc Highland Heights OH Backplane Extender Card How to Calibrate the Fast Millivolt Input Module To extend output module out from y Allen Bradley Company chassis for adjustments Cat No 1771 EZ Highland Heights OH The fast millivolt input module is shipped already calibrated If necessary to recalibrate the module you must calibrate it in an I O chassis The module must communicate with the processor and industrial terminal Calibration consists of adjusting the internal offset voltage ATTENTION Do not attempt to calibrate your module until you have read and thoroughly understand this procedure Also do not attempt to calibrate this module in an operating system Damage to the equipment or personal injury may result Publication 1771 6 5 119 6 2 Module Calibration Adjusting the Internal Offset Voltage Turn off the power to your processor and I O chassis Swing the field wiring arm out of the way Remove the module from the T O chassis Remove the module covers Move the CAL RUN jumper
40. mine On Instruction 113 02 This is an optional instruction When used block transfers will only be initiated when a certain action takes place If you do not use this instruction block transfers will be initiated every I O scan e First GET Instruction 030 120 identifies the module s physical address 120 by rack group and slot and where in the accumulated area of the data table this data is to be stored 030 e Second GET Instruction 130 060 indicates the address of the first word of the file 060 that designates where the data will be transferred The file address is stored in word 130 100g above the data address Output Energize Instruction 012 07 enables the block transfer read operation If all conditions of the rung are true the block transfer read enable bit 07 is set in the output image data table control byte The output image table control byte contains the read enable bit and the number of words to be transferred The output energize instruction is defined as follows e 0 indicates that it is an output instruction e 1 indicates the I O rack address e 2 indicates the module group location within the rack 1771 6 5 119 D 2 1771 6 5 119 Block Transfer Mini PLC 2 and PLC 2 20 Processors Output Image Table Timer Counter Accumulated Values Area Timer Counter Preset Values Area e 07 indicates this is a block transfer read operation if this were a block transfer w
41. n is fully engaged Swing the wiring arm into place at the front of the module Wire the Module Install the Module 2 1 Using the diagram below connect your I O devices to the wiring arm Total analog input cable connection length must be less than 15 meters 50 ft ATTENTION Class DIV 1 Nonhazardous or Class DIV 2 Groups A B C and D Groups A B C and D Channe Channe Channe Channe I Channel 3 Channel wv Common 3 and 4 A Channel 4 2 Channel gt Channel 5 C Channel 5 y Common 5 and 6 Channel 6 Channel 6 Channe Channe 44836 Publication 1771 6 5 119 2 8 Install the Module Ground the Module When using shielded cable wire ground the foil shield and drain wire only at on end of the cable We recommend that you wrap the foil shield and drain wire together and connect them to a chassis mounting bolt At the opposite end of the cable tape exposed shield and drain wire with electrical tape to insulate it from electrical contact Pull the foil shield and bare drain Twist the foil shield and drain Remove a lenght of cable wire from the insulated wires wire together to form a single jacket from the cable strand Bare drain wire Attach a ground lug ZZ Insulated wires 20104 M Refer to the Industrial Automation Wiring and Grounding Guidelines publication 1770 4 1 for additional grounding information Chassis Ground When you
42. olution 12 bit binary Accuracy 0 1 of range 25 C Linearity 1 LSB Repeatability 1 LSB Input overvoltage 32V protection Input impedance IMQ Maximum input voltage 10V Common mode rejection 100dB dc 60 Hz Backplane current 0 75 A Q 45V BCD and unscaled binary output to processor 0000 40951 Engineering units sent to the processor 9999 BCD with selectable scaling 32767 Binary A D converter Monotonic output with no missing codes Resolution 12 bit binary Absolute accuracy 40 196 full scale Quantizing error 41 2 LSB Temperature coefficient 50ppm C of full scale range for 0 60 C ambient Recalibration time calibration should be checked at 6 month intervals to maintain specified accuracy Internal scan rate 14 5 ms for 8 differential inputs no digital filtering add 2 5 ms for filtering Isolation Voltage Type tested at 1500V AC for 60 s system to field channels No isolation between field channels Wire Size 0 25 2 5 mm 22 14 AWG solid or stranded copper wire rated at 75 C 167 F or greater 1 2 mm 3 64 in insulation max Wiring Category 2 on signal ports Wire Type Shielded Keying between 20 and 22 between 28 and 30 Publication 1771 6 5 119 A 2 Specifications Publication 1771 6 5 119 Intrinsically Safe Fast Millivolt Input Module 1771 IFMS Attribute Value Wiring arm 1771 WG Field Wiring Arm Screw 0 8 1
43. r instruction when using the PLC 2 PLC 3 or PLC 5 family processors with the 1771 IFMS PLC 5 Family Processors The following is a sample procedure for entering data in the configuration words of the block transfer write instruction when using a PLC 5 processor 1 Enter the following rung BTW BLOCK XFER WRITE LENGTH N7 60 is the address of the BTW transfer file CONTINUOUS 2 Press F8 F5 and enter N7 60 to display the configuration block The industrial terminal screen should look like this Address 0 1 2 3 4 5 6 N10 0 0 0 1024 0 0 0 4095 N10 10 12287 12288 16383 16384 20479 20480 24575 N10 20 32767 0 0 0 0 0 0 N10 30 2 100 0 0 4096 8193 N10 40 24577 28672 0 0 0 0 0 N10 50 0 0 0 0 0 0 2 N10 60 0 4096 8193 12288 16384 20481 3 Enter the data corresponding to your bit selections and add scaling values if scaling is desired 4 ESC returns you to the main menu 1771 6 5 119 B 2 Programming Examples PLC 3 Family Processors 1771 6 5 119 Following is a sample procedure for entering data in the configuration words of the write block transfer instruction when using a PLC 3 processor To enter data in the configuration words follow these steps Example Enter the following rung for a write block transfer i BLOCK XFER WRITE RACK 001 J 12 GROUP 1 CNTL MODULE 1 HIGH DATA F0003 0000 F pN LENGTH 21 15 CNTL FB004 0000 CNTL ER 13 F0003 0000 is the address of
44. rated Any time after the second scan begins 6 a BTR request 7 can be acknowledged This BTR empties the buffer Input channel scanning 8 is not interrupted by the BTR Following the BTR the input module inhibits block transfer communications with the programmable controller until it has scanned its inputs 9 The input module repeats the scan sequence 10 updating the input values until another block transfer request is received Therefore BTRs can only be completed as frequently as the total scan time of the input module Scan times for the 1771 IFMS are e 14 5ms for 8 differential inputs e Add 2 5ms for digital filtering e Add 0 25ms for BCD data e Scaling adds no time Chapter Sum mary In this chapter you learned how to program your programmable controller You were given sample programs for your PLC 2 PLC 3 and PLC 5 family processors You also read about module scan time Publication 1771 6 5 119 3 6 Module Programming Publication 1771 6 5 119 Chapter 4 Chapter Objectives Configuring Your Input Module Input Type Module Configuration In this chapter you will read how to configure your module s hardware condition your inputs and enter your data Because of the many analog devices available and the wide variety of possible configurations you must configure your module to conform to the analog device and specific application that you have chosen Data is conditione
45. rite operation 07 would be replaced by 06 Rungs 2 and 3 These output energize instructions 012 01 and 012 02 define the number of words to be transferred This is accomplished by setting a binary bit pattern in the module s output image table control byte The binary bit pattern used bits 01 and 02 energized is equivalent to 6 words or channels and is expressed as 110 in binary notation Rung Summary Once the block transfer read operation is complete the processor automatically sets bit 07 in the input image table status byte and stores the block length of the data transferred Data Table dd Control Byte Output Image Table Control Byte Contains Read Enable Bit and Block Length in Binary Code Data Address Contains Module Address in BCD First Address Destination of Transferred Data Input Image Table Status Byte Contains Done Bit Storage Location Contains File Address in BCD R Read 07 Bit Setting the Block Length Multiple GET Instructions only For Block Transfer Active Operations Only Number of Words to Transfer Block Transfer Mini PLC 2 and PLC 2 20 Processors D 3 The input module transfers a specific number of words in one block length The number of words transferred is determined by the block length entered in the output image table control byte corresponding to the module s address The bits in the output image table control byte bits 00 05
46. s you to the ladder diagram To enter data in the configuration words follow these steps Example Enter the following rung for a write block transfer BTW BLOCK XFER WRITE DATA ADDR 06 MODULE ADDR t BLOCK LENGTH 21 E FILE 400 is the address of the write block transfer data file You want to examine configuration word 1 In RUN PROG Mode Action DONT Result Finds the block address transfer instruction 1 Press SEARCH 8 data address gt 2 Press CANCEL COMMAND 3 Press DISPLAY or 1 4 Press SEARCH S1 Cursor defaults to first entry in file when SEARCH 51 is pressed 5 Press INSERT Removes preceeding command Displays the file in binary or BCD On line data change Writes data to file element In PROG Mode Action Result 1 Press SEARCH 8 data address 2 Press CANCEL COMMAND 3 Press DISPLAY O or 1 4 Press DISPLAY 001 and enter data 5 Press INSERT Finds the block transfer instruction Removes preceeding command Displays the file in binary or BCD Puts cursor on word 1 1771 6 5 119 B 4 1771 6 5 119 Programming Examples Use the above procedure to enter the required words of the write block transfer instruction Be aware that the block length will depend on the number of channels selected and whether scaling is or is not performed for example the block may contain only 3 words if no scaling is performed but may contain 21 words if using 8 inputs with s
47. shooting L R U N Green RUN indicator FLT Red FLT fault indicator 44837 Chapter Summary In this chapter you learned how to install and wire the module Chapters 4 and 5 show you how to program and configure your module for the type of operation you require Publication 1771 6 5 119 Chapter 3 Chapter Objectives Block Transfer Programming Module Programming In this chapter we describe Block Transfer programming e Sample programs in the PLC 2 PLC 3 and PLC 5 processors Module scan time issues Your module communicates with the processor through bidirectional block transfers This is the sequential operation of both read and write block transfer instructions The block transfer write BTW instruction is initiated when the analog module is first powered up and subsequently only when the programmer wants to write a new configuration to the module At all other times the module is basically in a repetitive block transfer read BTR mode Your fast millivolt input module will power up with a default configuration See the configuration default section to understand what this configuration looks like Also refer to Appendix B for example configuration blocks and instruction addresses to get started The following example programs illustrate the minimum programming required for communication to take place Publication 1771 6 5 119 3 2 Module Programming Program Action Rungs 1 and 2 At po
48. to the CAL position pins 1 and 2 Plug the module into the extender card cat no 1771 EZ Ba nw PF D Insert the extender card with module attached into the chassis E and firmly seat it into the connector CAL position pins 1 and 2 8 Reposition the field wiring arm on the module Press firmly to RUN position seat pins 2 and 3 9 Set the precision voltage source to 49 970mV 10 Turn on power to the processor and I O chassis Important The calibration voltage is selected as full scale 50m V minus 5 2 LSBs 30 microvolts in order to ensure that all channels read within 1 2 LSB of each other Verify the voltage at the input of the module CAURUN jumper 11 With the module in the default configuration observe the BTR file for all eight channels Adjust the potentiometer on the bottom of the module until all eight channels flicker between FFDh and FFEh Important All channel readings will not be the same Some channels may stay on FFD while others may stay on FFE Adjust the potentiometer until the majority of the channels flicker between FFD and FFE When adjustment is complete no channel should display any value other than FFD or FFE 12 Turn off the power to the processor and I O chassis 13 Remove the module and extender card from the chassis and disconnect the module from the extender card Adjustment potentiometer 14 Reposition the CAL RUN jumper to the RUN position pins 2 and 3 15
49. uential performance of both read and write operations BTR Format The intrinsically safe fast millivolt input module 1771 IFMS reports the status of eight channels to the processor Decimal Bits E Octal Bits Description Bit 00 Power up bit is used by the module to tell the processor that it s alive but not yet configured It is a key element in the application program Bit 01 Out of range bit is sent to tell the processor that one or more channels are either over or under range Bit 02 Invalid scaling filtering data bit reports that the scaling or filtering data is somehow invalid Bit 03 Real Time Sampling time out bit Bits 00 07 Individual underrange bits for each channel Bits 00 07 Individual overrange bits for each channel Not used Bits 00 15 Input values Bits 00 17 In this chapter you learned the meaning of the status information that the input modules send to the processor Chapter 6 Chapter Objective Tools and Equipment Module Calibration In this chapter we tell you e what tools and equipment you need how to calibrate your module In order to calibrate your input module you will need the following tools and equipment Tool or Equipment Description Model Type Available from T ENS Analog 3100 Data Precision Precision Voltage Source 0 5V DC 0 1mV resolution minimum 8200 or equivalent Ls e Keithley 191 Fluke 8300A or 0 D Digital Voltmeter 5 1 2 digit 0 0196 accuracy minimu
50. ule ignores block transfer read BTR requests for data until the sample time period elapses The BTR of a particular data set occurs only once at the end of the sample period and subsequent requests for transferred data are ignored by the module until a new data set is available If a BTR does not occur before the end of the next RTS period a time out bit is set in the BTR status area When set this bit indicates that at least one data set was not transferred to the processor The actual number of data sets missed is unknown The time out bit is reset at the completion of the BTR Set appropriate bits in the BTW data file to enable the RTS mode You can select RTS periods ranging from 100 milliseconds ms to 3 1 seconds in increments of 100ms Refer to the table below for actual bit settings and page 4 5 for bit locations Note that the default mode of operation is implemented by placing all zeroes in bits 13 through 17 Note that binary representation of the RTS filter bit string is the RTS period X 100ms Example 900ms 01001 9 X 100ms ata CEDE Sample Time Period ees ee No RTS Default setting 14 5ms updates Cote Le fr frs ENENEEENENET Poo pet a sons 0 Lo t 9 0 400ms O o 5 11 soms Epp 1 5 sec 5109 1 0 0 2 0 sec ERESENSESZES 2 5 sec Eu EES 3 0 sec 3 1 sec Publication 1771 6 5 119 4 4 Module Configuration Scaling Publication 1771 6 5 119 Your module can perform linear conversion of unscaled dat
51. wer up the program enables a block transfer read and examines the power up bit in the BTR file rung 1 Then it initiates one block transfer write to configure the module rung 2 Thereafter the program continuously reads data from the module rung 1 A subsequent BTW operation is enabled by a pushbutton switch rung 2 Changing processor mode will not initiate a block transfer write unless the first pass bit is added to the BTW input conditions Publication 1771 6 5 119 PLC 5 Program Example The PLC 5 program is very similar to the PLC 3 program with the following exceptions You must use enable bits instead of done bits as the conditions on each rung A separate control file must be selected for each of the BT instructions Refer to Appendix B BTR BLOCK XFER READ BTR Enable EN 4 RACK X GROUP X HDN MODULE X CONTROL XXX XX FAER DATA FILE XXX XX LENGTH XX CONTINUOUS N Pushbutton BTW Enable B f 2 BLOCK XFER WRITE EN RACK GROUP X HDN MODULE X Power up Bit CONTROL XXX XX HER DATA FILE XXX XX LENGTH XX CONTINUOUS N Program Action At power up the user program examines the BTR done bit in the block transfer read file initiates a write block transfer to configure the module and then does consecutive read block transfers continuously The power up bit can be examined and used anywhere in the program Rungs 1 and 2 Rungs 1 and 2 are the blo

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