HM-1756-SGI-WM-Manua.. - Helm Instrument Company Inc.
Contents
1. SS A 2 m T 1 f CAM Allen Bradley NOTES 1 1756 MODULES CAN ACCEPT STRAIN GAGE INPUTS FROM 175 OHMS CHANNEL TO 1200 OHMS CHANNEL 2 THIS EXAMPLE SHOWS 4 1100 OHM CELLS WIRED IN PARALLEL FOR A FINAL INPUT OF 275 OHMS THIS DRAWING AS WELL AS THE SUBJECT MATTER THEREON SCALE NONE pesioneo BY N F N DRAWN BY M H L IS EXCLUSIVE PROPERTY OF HELM INSTRUMENT CO INC HELM IT IS TO BE TREATED BY YOU AS CONFIDENTIAL PROPRIETARY oat 07 16 09 N F N approved By R J G INFORMATION THE DRAWING OR SUBJECT MATTER THEREOF SHALL NO BE DUPLICATED OR DISCLOSED WITHOUT THE me HM 1756 WM TRANSDUCER CONNECTIONS HELM INSTRUMENT CO INC MAUMEE OHIO USA EXPRRESS WRITTEN CONSENT OF HELM INSTRUMENT CO INC mom E1103WO22. CONFIGURATION DATA Data Tags Data Bit Description Message Type Data 0 INT Data 1 INT Set Ch1 Scale value Data 2 INT Set Ch1 mV V value mV V x 1000 Data 3 INT Set Ch1 AD Trim value Data 4 INT Set Ch2 mV V value mV V x 1000 Data 5 INT Set Ch2 AD Trim value Data 6 INT Set Samples count Data 7 INT Set Ch2 Scale value Data 8 INT Data 9 INT STATUS REPORT DATA Data Tags Data Bit Description Message Type Data 0 INT Data 1 INT Current Ch1 Scale value Data 2 INT gt Current Ch1 mV V value mV V x 1000 Data 3 INT Current Ch1 AD Trim value Factory Use Only Data 4 INT Current Ch2 mV V value mV V x 1000 Data 5 INT Current Ch2 AD Trim value Factory Use Only Data 6 INT Current Samples count Data 7 INT Current Ch2 Scale value Data 8 INT Data 9 INT 13 HELM Model HM 1756 WM Transducer Connections 4 Cell Weigh Scale S CH1 SHIELD S CH1 GAGE GAGE S CH2 SHIELD S CH2 A 4 Cell Weigh Scale LLL gt
3. 9 OUTPUT IMAGE 9 WRITE CONFIG DATA 9 READ CONFIG DATA aa ea eea ae dae paana adera aea ae ea ae dae naea 10 MODULE INITAIL SETUP PROCEDURE 12 HM 1756 WEIGH MODULE DATA 5 nunn nnnn ennn nnnn nanne nasa nnns 13 INPUTIMAGE DATA Naai 13 eng uadl hiciemp ict 13 APPENDIX A SYSTEM CONNECTION Error Bookmark not defined HM 1756 SGI WM Operating Instructions 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 Allen Bradley Publication SGI 1 1 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 the Helm Inst
4. AHELM Helm Instrument Company Inc 361 West Dussel Drive Maumee Ohio 43537 USA 419 893 4356 Fax 419 893 1371 www helminstrument com HM 1756 SGI WM Strain Gage Input Module User Manual Force Measurement and Control Solutions HM 1756 SGI WM Operating Instructions IMPORTANT USER 1 C 2 WHO SHOULD LPs 2 PURPOSE THIS MANUAL zr rro tae cere Sera eua uae e a 2 TECHNIQUES USED IN THIS 3 PRODUCT SUPPORT t Eine hore exin Lu secueectnuedentdeesudeenuntv enters danean eis Senkin 3 HARDWARE OVERVIEW ooo DER 4 HM 1756 SGI WM SPECIFICATIONS 4 GETTING STARTED E E O A EC 5 REQUIRED TOOLS AND 5 SYSTEM OPERATION ettet 6 e DO NEC 6 MODULE l O CONFIGURATIQON 7 ADDING LADDER 8 MODULE INPUT OUTPJT rne une ocurrencia acu De cuam ccr pe de caah ddae aaah 9 INPUT IMAGE wp icc cL
5. It does however reference other chapters in this book where you can get more information about applying the procedures described in each step It also references other documentation that may be helpful if you are unfamiliar with programming techniques or system installation requirements If you have any questions or are unfamiliar with the terms used or concepts presented in the procedural steps always read the referenced chapters and other recommended documentation before trying to apply the information This chapter will e tell you what equipment you need e explain how to install and wire the module e show you how to calibrate the module REQUIRED TOOLS AND EQUIPMENT Have the following tools and equipment ready e small blade screwdriver programming equipment All programming examples shown in this manual demonstrate the use of Rockwell RSLogix 5000 Software HM 1756 SGI WM Operating Instructions SYSTEM OPERATION The module communicates to the controller through the serial backplane interface and receives 5Vdc and 24Vdc power from the controller power supply through the backplane No external power supply is required You may install as many modules in your system as the power supply can support FRONT PANEL STRAIN GAGE INPUT IBTATUS OK mm ALARM STATUS ALARM INDICATOR LIGHTS 1S CHI SHIELD 8 amp 5cm 27 GAGE 35 aE gt
6. 2 Set mV V to load cell specification Example 100 ton load cell 2 025 mV V For scale set enter 100 mV V set enter 2025 3 Download the values to module 12 HM 1756 SGI WM Operating Instructions HM 1756 WEIGH MODULE DATA TAGS INPUT IMAGE DATA TAGS Data Tags Data Bit Description Local x l Type Data 0 INT ASIC Scan Update Counter Data 1 INT Ch1 Weight Value Data 2 INT Ch2 Weight Value Data 3 Bit Ch1 Sign Bit 0 positive 1 negative Ch2 Sign Bit 0 positive 1 negative AD Trim Mode Bit 0 Run Mode 1 Trim Mode Average Complete Bit OUTPUT IMAGE TAGS Data Tags Data Bi Description Local x O Type t Data 0 Bit 0 Write Config Data Bit Bit 1 Run Mode Bit 1 Run Mode 0 Config Data Mode Bit 2 Read Config Data Bit Bit 3 Zero Stabilize On Bit in Run Mode Bit 4 NoFlicker On Bit in Run Mode Bit 5 Vibration Filter On Bit in Run Mode Bit 6 Bit 7 Up Course Zero Bit Use Bit 15 for channel select in Run Mode Bit 8 Bit 9 Clear Average Bit in Run Mode Bit 10 Bit 11 Bit 12 Down Course Zero Bit Use Bit 15 for channel select in Run Mode Bit 13 Clear Tare Offset Bit Use Bit 15 for channel select in Run Mode Bit 14 Set Tare Offset Bit Use Bit 15 for channel select in Run Mode Bit 15 Channel Select Bit 0 Ch1 1 Ch2 in Run Mode
7. 2 channels of strain gage input Two 700 ohm gages may be paralleled to one channel Module configuration requires manual and user programmable setup The module receives and stores digitally converted analog data into its image table for retrieval HM 1756 SGI WM SPECIFICATIONS Backplane Power Consumption 24V 84 99mA 5V 40mA Type of input Strain Gage 350 ohm 700 ohm Input Impedance 10k Display Resolution Up to 0025 of full scale Overall Module Accuracy 01 of full scale Number of Channels 2 isolated A D Conversion Method Successive Approximation 16 bit Normal Mode Rejection between input 116DB CMRR Amplifier Bandwidth 200 kHz Calibration Software Selectable Isolation 500 VDC continuous between inputs and chassis ground and between input and backplane Operating Temperatures 0 C to 60 C 32 F to 140 F Hazardous Environment Classification Class 1 Division 2 Hazardous Environment HM 1756 SGI WM Operating Instructions GETTING STARTED This chapter can help you to get started using the Helm Strain Gage module The procedures included here assume that you have a basic understanding of ControlLogix products You should understand electronic process control and be able to interpret the ladder logic instructions required to generate the electronic signals that control your application Because it is a start up guide this chapter does not contain detailed explanations about the procedures listed
8. Sae E j SHIELD 5 SCH2 STRAIN GAGE INPUT CONNECTOR Status Alarm Indicator Lights OK light is on green when PLC communication is OK HM 1756 SGI WM Operating Instructions MODULE CONFIGURATION This shows the preliminary setup and operation required before the module can function in a 1756 I O system using RSLogix5000 Adding Module to I O Configuration Select 1756 MODULE Generic Module from Select Module Type window Select Module Type E Major Revision 1756 MODULE fi Description 1756 DMA30 1756 543000 Drive Interface 1755 DMA31 1756 543100 Drive Interface 1756 DMA50 1756 54500 Drive Interface 1755 DMB30 1756 583000 Drive Interface 1756 DMD30 1756 SD3000 Drive Interface 1756 SF3000 Drive Interface Generic 1756 Module 1756 MODULE Show Vendor Ai x Other Specialty 1 0 Select All Analog Digital Communication Motion Controller Clear All Help Configuration Module s Properties From the Controller Organizer right click on the added module and open up Module Properties windows imi Module Properties Local 2 1756 MODULE 1 1 E General Connection Module Info Backplane Type 1756 MODULE Generic 1756 Module Parent Local r Connection Parameters Assembly Instance Size Name weichmoduie Input 100 4 16 59 Description Dutput 30 1 16 bit z Configuration 1 859 Comm
9. into STATUS REPORT DATA tags This bit must stay on for at least 100ms and Data 0 1 bit needs to be at 0 during this operation Zero Stabilize On Bit Enables module feature to display 0 when Weigh scale is empty No Flicker On Bit When On it masks the LSB least significant bit of the weigh value to reduce any flickering of the value This feature is useful for low speed application Vibration Filter Bit Enables vibration filter to cancel out load variation due to vibration of the product weighted Up Course Zero Bit Used to increase the offset range of the A D for the channel selected Down Course Zero Bit Used to decrease the offset range of the A D for the channel selected Clear Average Bit Toggle this bit to clear the previous sample average weigh value and read a new sample average weigh value If this bit stays 0 all the time the weigh value Local x l Data 1 Local x I Data 1 will continually update a new sampled weigh value in every given sample count set at setup dataM1 data 6 Note When you toggle this bit the bit must be off before the sampling is completed For example if the sample count is set to 100 then the time that takes to complete sampling is 100ms 1ms RPI x 100 Therefore the interval of the toggle has to be less than 100 ms If the bit stays on longer than the actual sampling time the weigh value will display 0 Clear Tare Offset Bit Resets or removes tare value from module for the channel
10. Format pats INT Status Input Slot 2 2 Status Output Status Offline Apply Help in a name for the module select a slot number HM 1756 SGI WM Operating Instructions General Connection Parameters Assembly Size Instance Input 100 4 Output 190 1 Configuration 1 0 Connection Requested Packet Interval RPI 1 0ms imi Module Properties Local 2 1756 MODULE 1 1 General Connection Module Info Backplane Requested Packet Interval RPI 1 024 ms 0 2 750 0 ms T Inhibit Module Major Fault On Controller If Connection Fails While in Run Mode Module Fault Status Offline ADDING LADDER PROGRAM HM1756 Weigh Module requires the ladder program that comes with the module You need to copy the Tags and programs to your existing ladder program Open Hm1756Weigh_Module ACD file using RSLogix5000 program and copy the tags below from the Controller Tags section into your program Type TAG NAME msgreceive MESSAGE msgsend MESSAGE setup_dataM1 INT 10 status_dataM1 INT 10 Also copy WeighModule1 program into the Main Task section of your program Sort Tag Name 25 Controller moduletest Scope moduletest controller Show Show All A Controller Tags Controller Fault Handler 3 Power Up Handler amp Tasks 5 68 MainTask 9 18 MainProgram Program Tags En Ma
11. MAGE TAGS Data Tags Data Bi Description Local x O Type t Data 0 Bit 0 Write Config Data Bit Bit 1 Run Mode Bit 1 Run Mode 0 Config Data Mode Bit 2 Read Config Data Bit Bit 3 Zero Stabilize On Bit 1 On 0 Off in Run Mode Only Bit 4 No Flicker On Bit 1 On 0 Off in Run Mode Only Bit 5 Vibration Filter On Bit 1 On 0 Off in Run Mode Only Bit 6 Bit 7 Up Course Zero Bit Use Bit 15 for channel select in Run Mode Bit 8 Bit 9 Clear Average Bit in Run Mode Bit 10 Bit 11 Bit 12 Down Course Zero Bit Use Bit 15 for channel select in Run Mode Bit 13 Clear Tare Offset Bit Use Bit 15 for channel select in Run Mode Bit 14 Set Tare Offset Bit Use Bit 15 for channel select in Run Mode Bit 15 Channel Select Bit 0 Ch1 1 Ch2 in Run Mode only WRITE CONFIG DATA BIT Toggle this bit to download CONFIGURATION DATA to EEPROM of the module This is required for the module to take on any changes you made from the CONFIGURATION DATA tags This bit must stay on for at least 100ms and Data 0 1 bit needs to be at 0 during this operation Run Mode Bit When reading or downloading the module s configuration data using Data 0 0 and Data 0 2 this bit needs to be at For any other operation such as reading weigh value leave the bit at 1 HM 1756 SGI WM Operating Instructions READ CONFIG DATA BIT Toggle this bit to read current configuration values from the module s memory
12. automation control system that uses Allen Bradley small logic controllers You should have a basic understanding of ControlLogix products You should understand electronic process control and be able to interpret the ladder logic instructions required to generate the electronic signals that control your application If you do not contact your local Helm representative for the proper training before using this product PURPOSE OF THIS MANUAL This manual is a learning and reference guide for the Helm ControlLogix Strain Gage Input Module It contains the information you need to install wire and use the module HM 1756 SGI WM Operating Instructions TECHNIQUES USED IN THIS MANUAL The following conventions are used throughout this manual Bulleted lists such as this one provide information not procedural steps Numbered lists provide sequential steps or hierarchical information PRODUCT SUPPORT Contact your Helm representative or call Helm direct at 419 893 4356 sales and order support product technical training warranty support support service agreements Your Questions or Comments on this Manual If you have any suggestions for how this manual could be made more useful to you please send us your ideas HM 1756 SGI WM Operating Instructions HARDWARE OVERVIEW The HM 1756 SGI PLM module fits into any single slot It is a Class 1 module uses eight input words and eight output words The module can accept
13. e Write Config Data Bit Local x 0 Data 0 1 in Config Data Mode to download the new configuration values to the module STATUS REPORT DATA TAG Data Tags Data Bit Description status dataM1 Type Data 0 INT Data 1 INT Current Ch1 Scale value Data 2 INT Current Ch1 mV V value mV V x 1000 Data 3 INT Current Ch1 AD Trim Value Factory Use Only Data 4 INT E Current Ch2 mV V value mV V x 1000 Data 5 INT Current Ch2 AD Trim value Factory Use Only Data 6 INT Current samples count Data 7 INT Current Ch2 Scale value Data 8 INT E Data 9 INT This is an image of the CONFIGURATION DATA tag values stored in the module s internal memory Toggle Read Config Data Bit Local x 0 Data 0 2 in Config Data Mode to update the latest configuration values from module 11 HM 1756 SGI WM Operating Instructions MODULE INITAIL SETUP PROCEDURE You must make the following adjustments for proper operation Step 1 Step 2 Balance sensor input s Set Calibration numbers Balance Sensor Input 1 Set mV V to 2000 2 Set Scale to 10000 3 Download the values to module 4 Toggle Tare Offset bit to clear any offset value stored in memory 5 Toggle Up and Down Course Zero bit to set amplifier to low range of A D 20 000 counts 6 Toggle Set Tare Offset bit to zero the balance Set Calibration Numbers 1 Change the scale to capacity of load cell
14. inRoutine CJ Unscheduled Programs 2 3 Motion Groups P Tag Name 7 Alias For H Local2 C Type AB 1756 B 1756 MOD Local 2 AB 1756_MOD msgrecieve msgsend MESSAGE MESSAGE setup_dataM1 status dataM1 INT 10 INT 10 Decimal Decimal HM 1756 SGI WM Operating Instructions MODULE INPUT OUTPUT INPUT IMAGE DATA TAGS Data Tags Data Bit Description Local x I Type Data 0 INT ASIC Scan Update Counter Data 1 INT 5 Ch1 Weight Value Data 2 INT Ch2 Weight Value Data 3 Bit 0 Chi Sign Bit 0 positive 1 negative 1 Ch2 Sign Bit 0 positive 1 negative 2 AD Trim Mode Bit 0 Run Mode 1 Trim Mode Factory Use only 3 Sample Complete Bit ASIC Scan Update Counter Updates every RPI to show the Module is working properly Ch1 2 Weight Value Displays the actual weigh read from sensor as an unsigned word 0 65535 Proper scale and mV V settings are required for the accurate reading Ch1 2 Sign Bit Indicates the polarity of the weigh value in Data 1 Data 2 0 Positive 1 negative Sample Complete Bit indicates the sampling averaging of the Weigh value has been completed since the Clear Average Bit Local x O Data 0 9 has been toggled The number of samples to average can be set at CONFIGURATION DATA tags OUTPUT I
15. rument Company 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 the Helm Instrument Company cannot assume responsibility or liability for actual use based on the examples and diagrams No patent liability is assumed by Helm Instrument Company with respect to use of information circuits equipment or software described in this manual Throughout this manual we use notes to make you aware of safety considerations ControlLogix Compact I O MicroLogix 1500 PLC PLC2 and PLC5 are registered trademarks of the Allen Bradley Company Inc SLC SLC500 PanelView RediPANEL Dataliner are trademarks of Allen Bradley Company Inc IBM is a registered trademark of International Business Machines Incorporated ForceGard is a registered trademark of the Helm Instrument Company Inc HM 1756 SGI WM Operating Instructions PREFACE Read this preface to become familiar with the rest of this manual This preface covers the following topics Who should use this manual The purpose of this manual Terms and abbreviations Conventions used in this manual Helm Instrument support WHO SHOULD USE Use this manual if you are responsible for the design installation programming or maintenance of an
16. selected Set Tare Offset Bit Sets current weight reading to zero for the channel selected Channel Select Bit Use this bit to select between Channel 1 and Channel 2 for the following functions Up Course Zero Bit Down Course Zero Bit Clear Tare Offset Bit Set Tare Offset Bit 10 HM 1756 SGI WM Operating Instructions CONFIGURATION DATA TAG Data Tags Data Bit Description setup dataM1 Type Data 0 INT E Data 1 INT Set Ch1 Scale value Data 2 INT Set Ch1 mV V value mV V x 1000 Data 3 INT Set Ch1 AD Trim value Factory use only Data 4 INT Set Ch2 mV V value mV V x 1000 Data 5 INT Set Ch2 AD Trim value Data 6 INT Set Sample Count Data 7 INT Set Ch2 Scale value Data 8 INT Data 9 INT Set Ch1 Scale Value Enter a scale value of load cell for channel 1 Set Ch2 Scale Value Enter a scale value of load cell for channel 2 Set Ch1 mV V Value Enter 4 digit mV V setting from load cell mV V specification for channel Example If 2 034mV V then enter 2034 Set Ch2 mV V Value Enter 4 digit mV V setting from load cell mV V specification for channel2 Set Ch1 AD Trim Value This is only used for factory setting Leave it as 0 Set Ch2 AD Trim Value This is only used for factory setting Leave it as 0 Set Sample Count Enter the number of weigh readings you wish to average before it updates to INPUT IMAGE DATA TAG Note Toggl
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