1771-5.63 - Rockwell Automation
Contents
1. oscillator or EPROM FLT red on failure RUN green off If immediately after power up indicates FLT red on RAM or EPROM failure If during operation indicates possible microprocessor or backplane interface failure Replace module RUN green Power up diagnostics successfully blinking completed FLT red off Normal operation If LED continues to flash and write block Check ladder logic transfers BTW cannot be accomplished program If correct you have a possible interface failure replace module RUN green on FLT red off Normal operation None 1 When red LED is on the watchdog timer has timed out and backplane communications are terminated Your user program should monitor communication Publication 1771 5 63 November 1998 10 RTD Input Module CSA Hazardous Location Approval CSA certifies products for general use as well as for use in hazardous locations Actual CSA certification is indicated by the product label as shown below and not by statements in any user documentation Example of the CSA certification product label CL 1 DIV 2 GP A B C D To comply with CSA certification for use in hazardous locations the following information becomes a part of the product literature for CSA certified Allen Bradley industrial control products e This equipment is suitable for use in Class Division 2 Groups A B C D or non hazardous locations only e The products having the a2. terminal B drift high Power Dissipation 5 0W maximum 4 75W maximum Thermal Dissipation 17 0 BTU hr 16 2 BTU hr Agency Certification e CSA certified e CSA certified ing i ass Division 2 Groups A B C ass Division 2 Groups A B C when product or packaging is marked CSA Class D 2 G A B C CSA Class I D 2 G A B C D D certified certified e ULlisted e ULlisted e CE marked for all applicable directives oD Rockawelll Automation Allen Bradley a Rockwell Automation Business has been helping its customers improve __ productivity and quality for more than 90 years We design manufacture and support a broad Allen Bradley range of automation products worldwide They include logic processors power and motion control devices operator interfaces sensors and a variety of software Rockwell is one of the world s leading technology companies Z gill Worldwide representation mnt Argentina e Australia e Austria e Bahrain e Belgium e Brazil e Bulgaria e Canada e Chile e China PRC e Colombia Costa Rica e Croatia e Cyprus e Czech Republic e Denmark e Ecuador e Egypt El Salvador e Finland e France e Germany e Greece e Guatemala e Honduras e Hong Kong e Hungary e Iceland e India e Indonesia e Ireland Israel Italy e Jamaica e Japan e Jordan e Korea e Kuwait e Lebanon e Malaysia e Mexico Netherlands e New Zealand Norway e Pakistan e Peru e Philippines e Poland e Portugal e Puerto Rico e Qatar e Romania e
3. Russia CIS e Saudi Arabia e Singapore e Slovakia Slovenia e South Africa Republic e Spain e Sweden e Switzerland e Taiwan e Thailand e Turkey e United Arab Emirates United Kingdom e United States e Uruguay Venezuela e Yugoslavia Allen Bradley Headquarters 1201 South Second Street Milwaukee WI 53204 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Publication 1771 5 63 November 1998 PN 955132 08 Copyright 1998 Rockwell Automation Printed in USA
4. est la marque d pos e de l Association des Standards pour le Canada PLC est une marque d pos e de Allen Bradley Company Inc Approbation d utilisation dans des emplacements dangereux par la La CSA certifie les produits d utilisation g n rale aussi bien que ceux qui s utilisent dans des emplacements dangereux La certification CSA en vigueur est indiqu e par l tiquette du produit et non par des affirmations dans la documentation l usage des utilisateurs Exemple d tiquette de certification d un produit par la CSA CL 1 DIV 2 GP A B C D as Pour satisfaire a la certification de la CSA dans des endroits dangereux les informations suivantes font partie int grante de la documentation des produits industriels de contrdle Allen Bradley certifi s par la CSA e Cet quipement convient l utilisation dans des emplacements de Classe 1 Division 2 Groupes A B C D ou ne convient qu l utilisation dans des endroits non dangereux e Les produits portant le marquage appropri de la CSA c est a dire Classe 1 Division 2 Groupes A B C D sont certifi s l utilisation pour d autres quipements o la convenance de combinaison application ou utilisation est d termin e par la CSA ou le bureau local d inspection qualifi Important Par suite de la nature modulaire du syst me de contr le PLC le produit ayant le taux le plus lev de temp rature d termine le taux d ensemble du code
5. Installation Instructions RTD Input Module Catalog Number 1771 IR Series D Contents Use this document as a guide when installing the 1771 IR D input module To See page This icon is used when y Prevent Electrostatic Discharge Below additional information is J Understand Compliance to European Union Directives available inthe ATE Ifput J Understand Product Compatibility Module User Manual publication 1771 6 5 129 J Calculate Power Requirements y Determine Module Placement If you need a copy of this Key the Backplane Connector manya e Soe eae install the Module and Field Wiring Arm n Manual Request Card to U 9 1 800 576 6340 If you are y Connect Wiring to the Field Wiring Arm Al outside the U S fax the card to Q Ground the Chassis and Module 13907 694039 J Configure the Module A For this reference information See page mp Status Indicators D Troubleshooting Specifications EE Differences Between Series A Prevent Electrostatic The RTD input module is sensitive to electrostatic discharge Discharge ATTENTION Electrostatic discharge can damage integrated circuits or semiconductors if you touch backplane connector pins Follow these guidelines when you handle the module Touch a grounded object to discharge static potential Wear an approved wrist strap grounding device Do not touch the backplane connector or connector pins Do not touch circuit components inside the module I
6. Number of Inputs Module Location Sensor Type Units of measure Temperature Range Resistance Range Resolution Sensor Excitation Common Mode Rejection Common Mode Impedance Normal Mode Rejection Input Overvoltage Protection Open RTD Response Time Scan Time Isolation Voltage Backplane Current Power Dissipation Thermal Dissipation Environmental Conditions Operating Temperature Rate of Change Storage Temperature Relative Humidity Operating Storage Temperature Coefficient Keying Field Wiring Arm Wiring Arm Screw Torque Specifications continued on next page RTD Input Module 11 Value 6 RTD input channels 1771 I O Chassis 100 ohm platinum alpha 0 00385 or 10 ohm copper alpha 0 00386 Other types may be used with report in ohms only Temperature in C Temperature in F RTD resistance in ohms 10milliohms or 30millionms resolution Platinum 200 to 870 C 328 to 1598 F Copper 200 to 260 C 328 to 500 F 1 00 to 600 00 ohms Platinum 0 1 C 0 1 F Copper 0 3 C 0 5 F 1mA constant current source supplied by module 120db 60Hz up to 1000V peak Greater than 10 megohms 60db 60Hz 120V rms continuous Open excitation terminal A to overrange lt 0 5sec Open common terminal C to underrange lt 0 5sec Open sense terminal B drift high 50ms for 6 channels This isolation meets or exceeds the requirements of UL Standard 508 and CSA Standard C22 2 N
7. and or backplane power supply You can place your module in any I O module slot of the I O chassis except for the extreme left slot This slot is reserved for PC processors or adapter modules ATTENTION Do not insert or remove modules from the I O chassis while system power is ON Failure to observe this rule could result in damage to module circuitry Group your modules to minimize adverse affects from radiated electrical noise and heat We recommend the following e Group analog input and low voltage dc modules away from ac modules or high voltage dc modules to minimize electrical noise interference e 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 Position the keying bands in the backplane connectors to correspond to the key slots on the module Place the keying bands between 10 and 12 between 28 and 30 Upper Connector Lt mw uo 1 0 chassis 11022 1 You can change the position of these bands if subsequent system design and rewiring makes insertion of a different type of module necessary Publication 1771 5 63 November 1998 4 RTD Input Module Install the Module and Field Wiring Arm ATTENTION Remove power from the 1771 I O chassis backplane be
8. ata cannot be displayed This will occur when measuring temperatures in Fahrenheit larger than 999 9 degrees The default bias value which is subtracted is 1000 0 Channel Polarity Sign bits for each channel When set indicate that a certain input is negative Bit 10 corresponds to input 1 bit 11 to input 2 etc These bits are used for BCD and signed magnitude data formats Channel 1 6 Data Input data words for each channel Word 3 to channel 1 word 4 to channel 2 etc Channel 1 6 Data The data words must be multiplied or divided by a factor if whole numbers need to be displayed See table below you are reading temperature in F or C there is an implied decimal point XXX X after the least significant digit Resolution is 0 1 you are reading resistance in milliohms copper there is an implied decimal point XXX XX RTDs BTW word 1 bit 10 1 you are reading resistance in milliohms all multiply the data word by 30 to get the actual value other RTDs BTW word 1 bit 10 0 in milliohms Resolution is 30 milliohms Notused Channel failed calibration Fc EE Noued fs aejol Auto calibration status Faulty calibration no save Offset calibration complete EEPROM fault Gain calibration complete Save complete Default Configuration If a write block of five words with all zeroes is sent to the module default selections will be BCD data format 100 ohm platinum RTD temperature in degr
9. de temp rature du syst me de contr le d un PLC dans un emplacement de Classe 1 Division 2 Le taux du code de temp rature est indiqu sur l tiquette du produit Taux du code de temp rature GP A B C D TEMP Les avertissements suivants s appliquent aux produits ayant la certification CSA pour leur utilisation dans des emplacements dangereux Le taux du code de temp rature est indiqu ici AVERTISSEMENT Risque d explosion e La substitution de composants peut rendre ce mat riel inacceptable pour lesemplacements de Classe I Division 2 e Couper le courant ou s assurer quel emplacement est d sign non dangereux avant de remplacer lescomposants e Avant de d brancher l quipement couper le courant ou s assurer que l emplacement est d sign non dangereux e Avant de d brancher les connecteurs couper le courant ou s assurer que l emplacement est reconnu non dangereux Attacher tous connecteurs fournis par l utilisateur et reli s aux circuits externes d un appareil Allen Bradley l aide de vis loquets coulissants connecteurs filet s ou autres moyens permettant aux connexions de r sister une force de s paration de 15 newtons 3 4 Ib 1 5 kg appliqu e pendant au moins une minute CSA logo is a registered trademark of the Canadian Standards Association PLC is a registered trademark of Allen Bradley Company Inc Publication 1771 5 63 November 1998 Specifications Description
10. e to insulate it from electrical contact Refer to Wiring and Grounding Guidelines publication 1770 4 1 for additional information Publication 1771 5 63 November 1998 Chassis Ground When you connect grounding conductors to the I O chassis grounding stud place a star washer under the first lug then place a nut with captive lock washer on top of each ground lug Ground Lug KG Nut Nut and Captive 4 Washer Grounding Stud D ro A St Waie Ground Lug 1 0 Chassis Side Plate Shield and Drain twisted together 1Use the cup washer if crimp on lugs are not used Single point Grounding Extend shield to termination point Expose just enough cable to adequately terminate inner conductors 2y y 2A Use heat shrink tubing or other suitable insulation where wire exits cable jacket Shield and Drain twisted together 10 Thread forming screw External tooth Washers RTD Input Module 7 Configure the Module Use the configuration information below to configure your module to your specifications p For detailed configuration information see chapter 5 of your RTD Input Module User Manual publication 1771 6 5 129 Dec Bits Octal Bits OI Es Es Ce ee TE JE EE NL CE AE NEO Real Time Sampling Data RTD Unit
11. ees C real time sampling RTS inhibited sample time 50ms Publication 1771 5 63 November 1998 Interpret Status Indicators Green RUN indicator Red FAULT indicator 10528 1 Troubleshooting For detailed troubleshooting information see chapter 8 of your RTD Input Module User Manual publication 1771 6 5 129 RTD Input Module 9 The front panel of the RTD input module contains a green RUN indicator and a red FAULT indicator At power up the module momentarily turns on both indicators as a lamp test then checks for e correct RAM operation e EPROM operation e EEPROM operation e a valid write block transfer with configuration data If there is no fault the red indicator turns off The green indicator comes on when the module is powered It will flash until the module is programmed If a fault is found initially or occurs later the red fault indicator lights The module also reports status and specific faults if they occur in every transfer of data BTR to the PC processor Monitor the green and red indicators and status bits in word 1 of the BTR file when troubleshooting your module Possible module fault causes and corrective action are described in the following table Indicators Probable Cause Recommended Action RUN green off No power to module Check power to I O FLT red off chassis Recycle as necessary Possible short LED driver failure Replace module RUN green on Microprocessor
12. f available use a static safe work station When not in use keep the module in its static shield bag Understand Compliance to This product has the CE mark and is approved for installation within European Union Directives the European Union and EEA regions It has been designed and tested to meet the following directives Publication 1771 5 63 November 1998 2 RTD Input Module EMC Directive This product is tested to meet Council Directive 89 336 EEC Electromagnetic Compatibility EMC and the following standards in whole or in part documented in a technical construction file e EN 50081 2EMC Generic Emission Standard Part 2 Industrial Environment e EN 50082 2EMC Generic Immunity Standard Part 2 Industrial Environment This product is intended for use in an industrial environment Low Voltage Directive This product is tested to meet Council Directive 73 23 EEC Low Voltage by applying the safety requirements of EN 61131 2 Programmable Controllers Part 2 Equipment Requirements and Tests For specific information required by EN 61131 2 see the appropriate sections in this publication as well as these Allen Bradley publications Publication Publication number Industrial Automation Wiring and Grounding Guidelines 1770 4 1 For Noise Immunity Guidelines for Handling Lithium Batteries AG 5 4 Automation Systems Catalog B111 This equipment is classified as open equipment and must be mounted i
13. fore you install the module Failure to remove power from the backplane could cause e module damage e degradation of performance injury or equipment damage due to possible unexpected operation fa Place the module in the card guides on the top and bottom of the chassis that guide the module into position Important Apply firm even pressure on the module to seat it into its backplane connector 1771 A1B A2B A3B A4B I O chassis 1771 A1B A2B A4B Series B I O chassis Swing the chassis locking bar down into place to secure the modules Make sure the locking pins engage Snap the chassis latch over the top of the module to secure it Attach the wiring arm 1771 WF to the horizontal bar at the bottom of the I O chassis The wiring arm pivots upward and connects with the module so you can install or remove the module without disconnecting the wires 1771 WF Publication 1771 5 63 November 1998 RTD Input Module 5 Connect Wiring to the Connect your I O devices to the field wiring arm cat no 1771 WF Field Wiring Arm shipped with the module ATTENTION Remove power from the 1771 I O chassis backplane and field wiring arm before removing or installing an I O module e Failure to remove power from the backplane or wiring arm could cause module damage degradation of performance or injury e Failure to remove power from the backplane could cause injury or equipment damage due
14. n an enclosure during operation to provide safety protection Understand Product The 1771 IR D module can be used with any 1771 I O chassis Com patibility Compatibility and data table use is listed below Use of Data Table Compatibility Catalog Number Addressing Pe wr A Compatible with 1771 A1 A2 A4 chassis B Compatible with 1771 A1B A2B A3B A4B chassis Yes Compatible without restriction No Restricted to complementary module placement Chassis Series 1771 IR D Do not use this module with Cat No 1771 AL PLC 2 20 or 2 30 Local Adapter Publication 1771 5 63 November 1998 RTD Input Module 3 Calculate Power Requirements Determine Module Placement in the 1 0 Chassis Key the Backplane Connector Place your module in any slot in the chassis except the leftmost slot which is reserved for processors or adapters ATTENTION Observe the following precautions when inserting or removing keys insert or remove keys with your fingers e make sure that key placement is correct Incorrect keying or the use of a tool can result in damage to the backplane connector and possible system faults The module receives its power through the 1771 I O power supply The maximum current drawn by the RTD module is 950mA 4 75 Watts Add this current to the requirements of all other modules in the I O chassis to prevent overloading the chassis backplane
15. o 142 950mA at 5V 4 75W maximum 16 2 BTU hr 0 to 60 C 32 to 140 F Ambient changes greater than 1 0 C minute may temporarily degrade performance during periods of change 40 to 85 C 40 to 185 F 5 to 95 noncondensing 5 to 95 noncondensing 50ppm C of full scale range Between 10 and 12 Between 28 and 30 Cat No 1771 WF 7 9 inch pounds Publication 1771 5 63 November 1998 12 RTD Input Module Description Value CSA certified CSA Class Division 2 Groups A B C D certified UL listed CE marked for all applicable directives Publication 1771 6 5 129 Agency Certification when product or packaging is marked User Manual Differences Between Major differences between series of the 1771 IR RTD Input module Series A Series B Series are shown below C and Series D Modules Description Series B C and D Use of Data Table 8 in 8 out 8 read words 14 write words 8 in 8 out 9 read words 15 write words Resistance Range 18 4 to 400 00 ohms 1 00 to 600 00 ohms Common Mode Impedance lt 50 megohms shunted by lt 4700pF Greater than 10 megohms Input Overvoltage Protection 40V rms continuous 120V rms continuous Scan Time 50ms for 6 channels 50ms for 6 channels Real Time Sampling 50ms to 3 1s Auto Calibration Yes Uses Block Transfer Write word 15 Open RTD Response Time Open excitation terminal A to overrange lt 0 5sec Open common terminal C to underrange lt 0 5sec Open sense
16. ppropriate CSA markings that is Class Division 2 Groups A B C D are certified for use in other equipment where the suitability of combination that is application or use is determined by the CSA or the local inspection office having jurisdiction Important Due to the modular nature of a PLC control system the product with the highest temperature rating determines the overall temperature code rating of a PLC control system in a Class I Division 2 location The temperature code rating is marked on the product label as shown Temperature code rating GP A B C D TEMP The following warnings apply to products having CSA certification for use in hazardous locations Look for temperature code rating here ATTENTION Explosion hazard e Substitution of components may impair suitability for Class Division 2 e Do not replace components unless power has been switched off or the area is known to be non hazardous e Do not disconnect equipment unless power has been switched off or the area is known to be non hazardous e Do not disconnect connectors unless power has been switched off or the area is known to be non hazardous Secure any user supplied connectors that mate to external circuits on an Allen Bradley product using screws sliding latches threaded connectors or other means such that any connection can withstand a 15 Newton 3 4 Ib separating force applied for a minimum of one minute Le sigle CSA
17. s of i default no RTS Single channel in ohms If any of these bits are set the corresponding input channel will be reported in ohms If RTDs other than 10 ohm copper or 100 ohm platinum are used you must report those channels in ohms not degrees Data format on a channel displayed in ohms will default to binary Description Real time sampling data format RTD type units of measure and single channel in ohms Determines what units of measure ii i d the module reports In temperature mode 0 Entre module is platinum Units of measure 1 Entire module is 10 ohm copper Degrees C Enter exact value in word 2 Degrees F In ohms mode 0 30mohm count resolution 1 10mohm count resolution Not used Set to match your processor o o BCD defaut Colt names Important Use decimally addressed bit 1 o Two s complement binary locations for PLC 5 processors aa Signed magnitude binary If bit 10 is set in word 1 and temperature readings are desired word 2 must also be 9 used Enter the exact resistance of 10 ohm RTD at 250C in BCD Range is 9 00 to 11 00 ohms Values less than 9 00 ohms or greater than 11 00 ohms will default to 10 00 ohms Non BCD values will also default to 10 00 ohms Individual channel bias entered in BCD This value is subtracted from the channel 10 ohm resistance 25 C 3 4 5 6 7 8 data in the BTR The bias value is always a positive number Bias
18. to possible unexpected operation Connection Diagram for the RTD Input Module 1771 IR D Terminal Identification Channel 1 C Channel 1 shown pep Wea Functional RTD A Ground o A EE ae A EENE EEE i EAE Field Wiring Arm Cat No 1771 WF 11846 1 The sensor cable must be shielded The shield must e extend the length of the cable but be connected only at the 1771 I O chassis e extend up to the point of termination Important The shield should extend to the termination point exposing just enough cable to adequately terminate the inner conductors Use heat shrink or another suitable insulation where the wire exits the cable jacket Publication 1771 5 63 November 1998 6 RTD Input Module Ground the Chassis and Module Use the following diagrams to ground your TO chassis and input module Follow these steps to prepare the cable Remove a length of cable jacket from the cable ME Pull the foil shield and bare drain wire from the insulated wires Bare drain Insulated wires Twist the foil shield and drain wire together to form a single strand El Attach a ground lug When using shielded cable wire ground the foil shield and drain wire only at one 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 tap
19. value range is Channel 1 6 bias O lt bias lt 9999 9 w i 18 Channel 1 6 calibration Individual channel calibration 15 Channel failed calibration Fo ee Notused fs fe o auto calibration request word Faulty calibration no save Offset calibration complete EEPROM fault Gain calibration complete Save complete Publication 1771 5 63 November 1998 Dec Bits Octal Bits Word 1 Real time sample fault bit RTS Real time sample time out bit RTD Input Module Use the following table to read data from your input module Ge ELD ea OA PIE CN een DEMO OEIL oe or oo Fe cemoe EE LE MT Underrange bits for each channel set when input is below the normal operating range for copper or platinum RTD Bit 00 for input 1 bit 01 for input 2 etc Overrange bits for each channel set when the input is Power up bit PU Set when the module is alive above the normal operating range Bit 10 for input 1 bit but not yet configured 11 for input 2 etc 3 4 5 6 7 8 EEPROM status bit EE This bit is set if EEPROM values could not be read Notused Channel Polarity Channel overflow Channel overflow channel polarity Channel overflow When set indicate that default bias has been subtracted from the input value Only the remainder is shown in the data word Bit 00 for input 1 bit 01 for input 2 etc Default bias is automatically applied when BCD formatted d
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