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Epson 9840 User's Manual

1. 24 MODEL 9840 PG 1 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 COMMUNIC AT ONS Settings s ess d ei ce te C EYES eeu Eee ee gud 25 Communications Formalt sene te sten tnr se 25 RS232 RUN MODE COMMAND SUMMARY eese eese eese tn seta stesso seo setas etas etas e ense ease 25 RS232 RUN MODE COMMANDS ee eeee esee teens sense ense ta seta seta seta sete sete ste sepas ease sete sees esso 26 HELLO COMMAND iret e rece ete E ete EE re C RR ER PE ER NE RD 26 QUESTION MARK COMMAND E aa E a e r a eE a E ea e E aa Eepo i rrai auas 26 FRONT PANEL DISPLAY COMMAND F ccssccessesceceeseeecssseececsuceeceesaececseaaecesaaeeecsesaececsesaeeesseeeseeaeeeeneeaeeess 27 Front Panel View Command 27 Front Panel Set Command 27 Front Panel Alternate Command FA eese 27 Front Panel Pointer Control to Line 1 1 27 Front Panel Pointer Control to Line 2 F2 esses eee en nennen renes nnne 28 VALUE COMMAND V FOR ONE OR BOTH CHANNELS iieseeeeeeeeee 28 PRINT COMMANDJY D 5 29 RESET TARE PEA
2. This command allows you to view or set the 4 contact closure limit switches on the Model 9840 There are three subcommands Limit View LiV Limit Set LiS and Limit Reset LiR Note that changing a cell type on a channel will automatically erase limits tat were set for that channel They must then be reset by the user Limit View Command LiV The Limit View LiV command is used to view the current settings of one of the limits The format is L limit number V Example 123L1V Acknowledge 123 Lim 1 NO Enabled Load A Lb Set 20 00 Trip gt Set Latch Off Reset 1 000 This line indicates that Limit 1 is a normally open switch NO rather than a normally closed switch NC The limit is Enabled rather than Disabled The signal driving this limit is Load in Lb The limit will be turned on when the load exceeds 20 00 Lb It is not a Latching limit latching requires a manual reset The limit will automatically reset when the load is less than 1 00 Lb Torque can be substituted for load for an appropriate cell Limit Set Command LiS The Limit Set LiS command is broken up into 4 separate commands They have the following format L limit number SA space normal position enable item number unit number L limit number SB space L limit number SC L limit number SD space setpoint number space or gt latching reset point number MODEL 9840 PG 43 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2
3. esses neen trennen rente ene nnen nenne 49 Display Second Line Command D32 esee eene trennen rene remettre trennen trennen 49 Display Second Eine Text DT sese ette tte ee tek ius e eode eee ed quet aote e geben dens 49 Display Filter Window Commands DW eese 49 SYSTEM CALIBRATION MODE cresce scene eene etas tn seta setatis sonst s stone toss 51 APPENDIX A MODEL 9840 SPECIFICATIONS stats sosta seas sense 52 APPENDIX CABLES AND eerte setas etas tease stato stones 55 LOAD CELL Ge piro PEE 55 SERIAL PORT CONNECTOR cs E 55 DIGITAL L O C ONNECTOR qe ER 56 CHART REC CONNECTOR D 56 USB CONNECTOR eissa ecrire e er tione teet itae nite i i orte 57 PRECISION SHUNT CALIBRATION RESISTORS sees teen teen teen 58 Under the copyright laws this publication may not be reproduced or transmitted in any form electronic or mechanical including photocopying recording storing in an information retrieval system or translating in whole or part without the prior consent of Interface Inc Copyright January 8 2008 all rights reserved MODEL 9840 PG 3 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 INTRODUCTION The
4. 3 00121 mV v 10 00 V Cal on Oct27 99 4 9292 Lb Shunt unused S N 63220 100 00 Lb 2 99984 mV v 10 00 V Cal on Oct27 99 49 381 Lb Shunt Ch S N 89991 1000 0 Lb 4 50015 mV v 5 00 V Cal on Oct27 99 486 45 Lb Shunt Calibrate by Torque Command CT The Calibrate by Torque CT command tells the unit that you are doing a calibration by 2 point torque or by 5 point torque The format is CT number of torques Example 123CT5 Acknowledge 123 Calibrate by Torque 5 Point Ready for 1 command Calibrate by Torque Point Command CTP The Calibration by Torque Point CTP command can have up to six parts CTP1 through CTP5 and CTPO You must have already started a calibration using the CB and CT commands for any of these commands to function To read the first torque issue the Calibration Torque Point 1 CTP1 command The format is CTP1 torque This will cause the Model 9840 to read 10 seconds of data from the torque cell These readings are averaged to obtain the first calibration torque reading The example uses 0 0 for the first mass Be sure you have placed the torque on the cell before entering this command since reading will begin immediately Example 123CTP10 0 Acknowledge 123 Calibrate Torque 1 Command Reading 10 seconds delay Calibrate Torque 1 Command Ready for CTP2 or CE command The Calibrate Torque 2 CTP2 command has the format CTP2 torque This command can only be issue
5. 4800 9600 and 19 2k Note that the Special entry is reserved for future use Com Line Feed This controls whether a line feed is added to each carriage return that is sent out by the Model 9840 when the RS232 ASCII command set is being used gt gt Retain Tare This controls whether the most recent tare value is retained through power down of the unit and used again immediately on power up Choosing this option will retain tare on channel A in a single channel unit and both channels A and B in a two channel unit gt gt RS232 EOT Char The end of transmission character is a non visible character hexadecimal 0x04 that is sent at the end of each response by the unit to an RS232 command The character is sent after the last carriage return line feed returned by the unit with one exception when the user is viewing channel values with the RS232 command 123V item unit repeat and sets the value of repeat to 2 streaming output the character is sent immediately prior to the streaming output that the unit will send The user can turn this option on or off gt Display Options This menu contains options that effect how load or torque peak and valley are displayed and printed These are listed in a submenu that works exactly like the setup mode main menu gt gt Filter Select There are two types of filters available on the Model 9840 I and Type Il Type filters are good for removing most kinds of noise but may l
6. COMMAND er nine eno eir te Rer 45 MODEL 9840 PG 2 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Option View Command QV iesu Conon eee oe Un PE Ee 45 Option Printer Baudrate Command OP esses 45 Option Auto Identify Command Ol eese ennt nennen nennen eret en eene ene teen nennen 46 Option Auto Zeroing Command OZ essent eene nene teen nren rene en rennen trennen 46 Option Com Address Command QA cesses 46 Option Com Baudrate Command OB cccccscccsssecessceensecessceessecesceeescecseceeeaaeceeeeeeaaecseneeesaeceeeeeeaeceeeeeenaeens 47 Option Linefeed Command OL estre eterne enne taie unen ades ae ciens dea aevo ele uere steers 47 Option Tare Retain Command OT ccscccescceesseceseceensecsseeeessecesceeeasecseneeenaecseneeesaecseneeesaeceneeeeneceeaeeenaeens 47 Option End of Transmission Character OE eese eene nennen 47 DISPLAY OPTIONS COMMAND D ssesssseseseeeeee eene en nennen nnne ne nn nr 48 Display View Command 22 46 Display Filter Command DE be Lee vai 46 Display Decimal Command DD cessent teeth eene enne nette tne tn nenne tenen nenne 46 Display Count By Command DQC
7. S N 13368 10 00 Lb 3 00121 mV v 10 00 V 4 9292 Lb Shunt unused S N 63220 100 00 Lb 2 99984 mV v 10 00 V 49 381 Lb Shunt Ch S N 89991 1000 0 Lb 4 50015 mV v 5 00 V 486 45 Lb Shunt Sensor Delete Command SD The Sensor Delete SD command is used to remove the calibration data for a stored cell from the list The format is SD serial number MODEL 9840 PG 34 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Example 123SD13368 Acknowledge 123 Deleted Sensor S N 13368 Ch A S N 123456 100 00 Lb 3 00150 mV v 10 00 V 49 532 Lb Shunt unused S N 63220 100 00 Lb 2 99984 mV v 10 00 V 49 381 Lb Shunt Ch S N 89991 1000 0 Lb 4 50015 mV v 5 00 V 486 45 Lb Shunt Calibration Command C This command has 8 subcommands Calibration Check CC is used to run a shunt calibration check on a cell Calibration Begin CB starts the calibration of a new or existing cell Calibration by millivolt per Volt may be done using one point CV which runs a calibration using the cell millivolt per Volt constant or 6 point which uses cell manufacturer supplied mass and milli volt per volt data CMV6 Calibration by Masses CM does a two or five point mass calibration Calibration by Torque CT does a two or five point torque calibration Calibration by Shunt CS does calibration based on the shunt value of the cell Calibration Escape CE cancels a calibration that is underway Calibration counts per Inch V
8. S N 89991 1000 0 Lb 4 50015 mV v 5 00 V Cal on Oct27 99 486 45 Lb Shunt Calibrate by Millivolt Per Volt Command for Six Points CMV6 The Calibrate by milli volt per Volt for six points CMV6 command is used to calibrate a load cell using 6 points of mass and milli volt per volt each You must have already started a calibration using the CB command for this command to function The format is CMV6 Note that a shunt check calibration will also be run at the end of the calibration and so it is important that the load cell is set at 0 or no masses when the final command is entered Example Q123CMV6 Acknowledge 8123 Calibrate by mV Volt 6 Point Ready for Mass CMVM1 command Calibrate by mV V Mass and Volt Commands CMVM and CMVV The Calibration by mV V Mass CMVM and Volt CMVV commands can have up to seven parts each CMVM1 through CMVM6 and CMVMO and CMVV1 through CMVV6 and CMVVO You must have already started a calibration using the CB and CMV6 commands for any of these commands to function To input the first mass issue the MODEL 9840 PG 37 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Calibration by mV V Mass 1 CMVM1 command The mass is entered using the following format CMVM1 mass value Entering this command will result in the unit prompting the user for the first milli volt per volt command Example 123CMVM15 0005 Acknowledge 123 Calibrate Mass 1 Command entered Ready for mV V Value CMVV1 or
9. The limit number chooses which limit 1 4 you want to setup The normal position should be set to 0 for normally open or 1 for normally closed The enable should be set to 0 for disabled or 1 for enabled If the limit is disabled the rest of this command may be omitted see example 3 The item and unit numbers indicate which signal is to drive this limit The set point number indicates the signal level at which the limit is to be activated The or sign indicates whether you want the limit to be activated when the signal is greater than the set point gt or less than the set point The latching should be set to 0 for latching off or 1 for latching on If latching on is selected the rest of the command may be omitted see example 2 Latching on will require a manual reset once the limit has been activated The reset point indicates the signal level at which the limit should be de activated If you want to enable a limit without otherwise changing its settings you can enter L limit number SA space normal position 12 instead of entering the full setup string see example 4 Example 1 123L1SA 010000 Acknowledge 1 0123 Limit Setup Command A Ready for Command B Example 2 123L1SB 50 04 Acknowledge 1 0123 Limit Setup Command B Ready for Command C Example 3 Q123L1SC gt 0 Acknowledge 3 0123 Limit Setup Command C Ready for Command D Example 4 123L1SD 10 04 Acknowledge 4 0123 Lim 1 NO Enabled Loa
10. and limits to the serial printer when it transitions from Off to On Other functions may be assigned to these inputs by custom programming at the factory All the features and settings of the Model 9840 can be accessed remotely using the Remote ASCII command set These commands fall into two groups commands that are similar Run Mode pushbutton commands and commands are similar to Setup Mode pushbutton commands Communications can be established via RS232 RS485 protocols through the serial port on the rear panel of the unit or via USB communications through the USB port on the rear panel of the unit in conjunction with the USB driver installed on the host PC The commands and command formats are the same for each method of communications Pinouts for the RS232 RS485 serial port communications are listed in Appendix B of this manual For older computers USB communication may require the installation of the USB driver located on the CD ROM that accompanies this product If the host PC can communicate with the Model 9840 via USB no driver is needed USB Driver If the host PC cannot communicate with the Model 9840 via USB install the USB driver that accompanies this product on CD ROM To install the USB Driver place the CD in your CD ROM drive Select Run from your Windows Start menu Type D USB_Driver CDM_Setup exe D or the corresponding CD ROM drive letter for your computer in the box and hit Enter You will be notified when the
11. 4mA 3 10 0v 4mA 4 10 0v 4mA gt Sensor Select This menu is used to manually select load or torque cell calibration data from a list stored in the Model 9840 When you select this menu on a 2 channel unit you are asked to select Channel A or B The cell serial number of the selected channel is displayed Use either the left right or plus minus buttons to page through the list The escape button will MODEL 9840 PG 17 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 return to the setup mode main menu without changing the cell that is selected The enter button will select the currently displayed cell and briefly display the rated load or torque last calibration date and excitation voltage To add new cells to this list use the Calibration entry on the setup mode main menu described below If you are using auto id load cells this menu will allow you to see which cell is selected but will not allow you to change the selection This ensures that the correct calibration information is always used when you use Auto ID load cells If the selected cell is of a different type load or torque than that previously displayed on the channel the display item and units will change accordingly Sensor Delete The Model 9840 can store calibration data for 25 different cells To delete a cell from this list choose Sensor Select from the setup mode main menu Press the left right or plus minus keys until the serial number o
12. At times you will need to enter numerical data into the Model 9840 The method is consistent in all cases A number is presented on the left side of the display with an underline cursor e Left lt moves the cursor left one position If you are on the leftmost digit a new zero will be added Thus 10 000 will become 010 00 where the cursor has moved from the tens place to the hundreds place e Right gt moves the cursor right one position If you are at the far right a new decimal will be added if there is room Thus 12 34 will become 12 340 where the cursor has moved from the tenths to the hundredths place e Plus increments the digit above the cursor Thus 12 34 becomes 13 34 Note that 9 will wrap around to O e Minus decrements the digit above the cursor Thus 12 34 becomes 11 34 Note that O will wrap around to 9 e Plus and Minus both and at the same time This will change the sign of the number Thus 12 34 becomes 12 34 Note that cursor position does not matter when you change the sign e Enter accepts the currently displayed number e Esc escapes from numerical entry and discards any changes that have been made Entering Alphanumeric Data When entering cell serial numbers the option of using numbers and or letters from A to Z is available This works in the same way as entering numerical data with the exception that no decimal point exists in the display gt User Da
13. Ch B will reset the peak and valley for channels B gt Reset Ch A Only will reset the peak and valley for channel A gt Reset Ch B Only will reset the peak and valley for channel B gt Reset Position will reset the position to zero Heset Limits will reset any limits that require manual resetting For a single channel unit the following menu will appear gt Reset Peak Vall will reset the peak and valley measurements gt Reset Peak Only will reset the peak measurement Heset Vall Only will reset the valley measurement gt Reset Position will reset the position to zero Heset Limits will reset any limits that require manual resetting Pressing either the button or the gt button will scroll forward through this list Pressing either the button or the lt button will scroll backward through the list Pressing Enter will reset the currently displayed item Pressing Esc will return to Run Mode without resetting anything Note that all menu lists on the Model 9840 start with the gt symbol and that the Esc button will always back out of a menu without making any changes View Button The View button switches between two virtual displays stored in the memory Each of these displays will remember the units you have selected for each item and which item is currently being shown This may save you from scrolling through the list of items if there are two particular results that you
14. F1 assigns the view pointer control to display line 1 upper line of the display and shows what is on the display This allows the operator to know which line will be configured or accessed Example MODEL 9840 PG 27 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Q123F1 Acknowledge 68123 Active Display shows Load A in Lb Other Display shows Peak A in Lb Front Panel Pointer Control to Line 2 F2 The Front Panel Pointer Control to Line 2 F2 assigns the view pointer control to display line 2 lower line of the display or the virtual display line if line 2 is disabled and shows what is on the display This allows the operator to know which line will be configured or accessed Example 123F2 Acknowledge 123 Active Display shows Peak A in Lb Other Display shows Load A in Lb Value Command V for one or both channels The value command for one channel is used to read the numerical value of a desired item and unit without altering the front panel display The format is V item number unit number repeat where the item and unit numbers can be found using the question mark command see above and the repeat number must be 0 1 or 2 Choosing repeat 1 will make the Model 9840 send you the desired value once Choosing repeat 2 will make the Model 9840 send the value at approximately 3 second intervals Choosing repeat 0 will turn off any values that are being sent by a repeat 2 command Note when choosing to view Limits use
15. Feed gt gt Retain Tare gt gt RS232 EOT Char gt gt Filter Select gt gt Decimals Ch A B gt gt Count By Ch A B gt gt Second Line gt gt Filter Window MODEL 9840 PG 13 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 SETUP MODE Setup mode is used to change the setup of the Model 9840 To enter setup mode press the two end buttons at the same time lt and The row of four buttons will now function as indicated by the lower set of labels Plus Minus Enter and Escape If the optional keylock is in the locked position you will see 2 Setup is Locked when you try to enter setup mode This prevents accidental or unauthorized changes to the setup of the unit To exit from setup mode and return to run mode press the escape button Esc When you are entering numerical data or selecting options from a sub menu the escape button will back you out without making any changes The main menu in setup mode contains the following 6 entries which will be described in detail in the following sections Note that all main menu items begin with the gt symbol and that all submenu items begin with the gt gt symbol e gt User Data Entry allows you to set any common math options such as the base area used to display load in PSI or the base length used to display position in percent e gt Analog Output is used to select the source and scaling for the standard analog output channel e S
16. Lb 10 0 Volts indicates 1000 Lb 0 0 Volts indicates 0 00 Lb Analog Output Set Command AS The Analog Set AS command is used to change the settings of the analog output The format is AS item number unit number full scale z zero scale where the item and unit numbers are used to determine the signal source for the analog output the full scale number indicates what signal level is assigned to full scale analog output of 10 0 volts and the zero scale number indicates the signal level assigned to zero volts analog output Note that when you change a cell type from load to torque or back again these settings must be reset for the new cell Example 123AS090010 0 5 0 Acknowledge 123 Analog Output is Pos in In 10 0 Volts indicates 10 00 In 0 0 Volts indicates 5 00 In Sensor Command S This command is used to view or select calibration data from the list of calibrated load cells maintained by the Model 9840 There are 4 subcommands Sensor View SV Sensor List SL Sensor Select SS and Sensor Delete SD Sensor View Channel A or B Command SA or SB The Sensor View Channel A or B SA or SB command has the format SA or SB It returns information about the cell currently loaded on channel A SA or channel B SB including the serial number the maximum load rating the millivolt per volt calibration constant the excitation voltage used the latest date of calibration and the shunt value recorded during that calibratio
17. The unit will go through its regular start up sequence but rather than entering run mode and showing the load in pounds a password prompt will be displayed Enter the number 777 as the system calibration password 3 The unit will now display Unit mV V Cal to indicate that it is ready to be calibrated A five minute warm up period with the millivolt per volt reference attached is recommended at this time if the unit has just been turned on or the millivolt per volt reference has just been attached Press any button to clear this display 4 You are now prompted to enter the first of two millivolt per volt references We recommend using 3 0 mv volt for the first and 3 0 mv volt for the second Set your reference and enter the appropriate number As soon as you press Enter the Model 9840 will start reading the reference 5 Next you are prompted for the second mv volt value Set your reference and enter the appropriate number Again reading will start as soon as Enter is pressed 6 When the read is complete the unit will display Calibration Done Pressing any button at this time will place the unit back into its normal run mode MODEL 9840 PG 51 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 APPENDIX A MODEL 9840 SPECIFICATIONS Transducer Interface Excitation 5VDC or 10 VDC software auto selectable Push Button Shunt Yes Internal Shunt Resistor 1 standard 2 optional Rear panel selectable Calibration Method Shunt mV V Kno
18. and have smallest count set for 20 the limit is activated at 10 001 Lbs even though the display is only showing 10 000 Second Line This option allows you to choose what you want to have displayed on the second line You can select limits select a display select text or leave the line blank Changing the type of cell attached to the unit from load to torque or back will reset the display such that both the top and bottom line will revert to the new cell type and its initial display Load for a load cell and Torq for a torque cell for the channel on which the cell type was changed Filter Window This option allows you to enable and set or disable a window to be used to turn the filters on or off If there is a sudden change in the measurement that exceeds this set window the filter is turned off and immediately turned back on so that this change of data will be visible to the user rather than filtered out To turn the window on press enter under the Filter Window option and toggle between on and off using the and buttons Once the window is turned on pressing enter and will display the current window s value and units 0 and Lbs or Lbl respectively Press enter again and you will be asked to set the units toggle buttons take you through the list Press enter once more and you reach the screen to set the value of the window Once the value is set press enter and you will return to the Filter Window option To cha
19. enabled before a value can be entered MODEL 9840 PG 49 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Disabling the window sets this value to 0 The window once enabled and set will take effect immediately and will remain in effect until the window is disabled Note that changing a cell type on a channel will automatically disable the filter window for that channel reset the units to Lb or Lbl and set the window value to 0 The window must then be reset and re enabled by the user Example 123DW1A1 Acknowledge 123 Filter Example 123DW2A000 Acknowledge 123 Filter 123 Filter MODEL 9840 Window A is On 00021 Window A Unit Lb Window A 0 0002 Lb PG 50 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 SYSTEM CALIBRATION MODE The following procedure should be followed to calibrate the Model 9840 itself This calibration requires the use of a precision millivolt per volt reference which will be attached on the load cell connector The resulting scale factors are recorded in the non volatile memory of the Model 9840 ATTENTION System Calibration should ONLY be performed by trained QUALIFIED TECHNICIANS utilizing the proper precision devices to ensure the most accurate performance of the unit 1 To enter system calibration mode turn off the Model 9840 Hold down the two end buttons lt and while turning power back on As soon as the display comes on you can release the buttons 2
20. if this is a New Cell or if you are going to Overwrite existing data If you do not wish to overwrite use the CE MODEL 9840 PG 35 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 command to stop this calibration Another method of overwriting existing data is to delete the sensor first and then calibrate The CB1 Command has been modified to accept the cell type but is still usable by older software The format for the CB commands is For backward compatibility CB1 space channel serial number Alternatively to delineate between a Load and a Torque Cell CB1 cell type channel serial number CB2 space month day year CB3 space excitation calibration unit CB4 space rated load where channel is A or B cell type is 0 for load and 1 for torque serial number is the serial number of the cell not exceeding 6 digits month day and year are 2 digit numbers to represent the current date excitation should be a 0 for 5 00 volts or a 1 for 10 00 volts and calibration unit is the desired unit for this calibration and rated load is the maximum load or torque rating for the cell Example 1 123CB1 A123456 Acknowledge 1 123 Calibrate Begin 1 Command New Load Cell S N 123456 Channel A Example 1A 123CB11A123456 Acknowledge 1 123 Calibrate Begin 1 Command New Torque Cell S N 123456 Channel A Example 2 123CB2 042298 Acknowledge 2 0123 Calibrate Begin 2 Command New Cal Date Apr22
21. item is used to calibrate a cell using the manufacturer s shunt calibration factor expressed in pounds or pound inches You will be asked for the channel the cell serial number the date the calibration unit the cell s maximum rated load or torque the desired excitation voltage 5 0 or 10 0 volts and the shunt calibration constant The Model 9840 will then automatically perform the shunt calibration of the cell using its internal precision shunt resistor Note that there is a back panel switch that allows you to select either a 30K or 60K resistor for shunt measurements see Appendix B for a circuit diagram Be sure to select the appropriate value for your cell During this calibration the Reading message will be displayed Do not disturb the cell while it is being read Like the Cal by mV volt option the cell should be free of load or torque during this calibration Counts per Inch This entry allows you to set the number of counts per inch that the quadrature encoder input will use gt Limits This menu is used to set up the 4 contact closure switches Instead of a submenu there are a series of selections Pressing Enter will accept the displayed entry Pressing Escape will return to the setup mode main menu without changing the limit setup Note that changing a cell type on a channel will automatically erase limits that were set for that channel These limits must then be reset by the user 1 Select Limit X The first sele
22. often use For instance you might set the display to show Load in Lb press View and then set the display for Peak in PSI Repeated presses of the View button will now switch back and forth between Load in Lb and Peak in PSI with a single button push If you choose to have the second line show a display then the View button toggles between the display currently being activated The activated display will have a amp o gt symbol to the left of it Esc Button In Run Mode the Esc button will freeze and unfreeze the run mode numerical display Press once to freeze the display at the current value Press again to return display to actual reading from sensor See Setup Mode information for the use of the Esc button during setup MODEL 9840 PG 11 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Print Button If the Print option is purchased the Print Button can be used to either print data or to freeze the display If the Hold option is purchased the functionality of the button is set using the System Setup options Otherwise the button can only control the ability to print data In Run Mode if the System Setup Options Print Hold button is set to Hold the Print button will freeze and unfreeze the run mode numerical display Press once to freeze the display at the current value Press again to return display to actual reading from sensor See Setup Mode information for the use of the Esc button during setup If the Print button
23. see the following acknowledgement 123 Calibrate mV V 6 Command entered Ready for Torque Value CMVTO or CE command The user must now enter the CMVTO command to finish the calibration Note the torque cell should have no torque on it at this point since a shunt calibration is run Example 123CMVTO Acknowledge 123 Calibrate Command Reading for Shunt Check 10 seconds delay 123 Calibrate Command Completed Ch A S N 123456 1000 0 LbI 4 50020 mV v 4 50020 mV v 4 50020 mV V 4 50020 mV V 4 50020 mV V 5 00 V Cal on Oct27 99 553 26 LbI Shunt Calibrate by Masses Command CM The Calibrate by Masses CM command tells the unit that you are doing a calibration by 2 point mass or by 5 point mass The format is CM number of masses Example 123CM5 MODEL 9840 PG 39 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Acknowledge 08123 Calibrate by Mass 5 Point Ready for CMP1 command Calibrate by Masses Point Command CMP The Calibration by Masses Point CMP command can have up to six parts CMP1 through CMP5 and CMPO You must have already started a calibration using the CB and CM commands for any of these commands to function To read the first mass issue the Calibration Mass Point 1 CMP1 command The format is CMP1 mass This will cause the Model 9840 to read 10 seconds of data from the load cell These readings are averaged to obtain the first calibration mass reading The example uses 0 0 Lb for the fir
24. shown Filter Window B is off if on the window value is shown Channel A shows 4 decimal digits Channel B shows 4 decimal digits Channel A counts by 1 Channel B counts by 1 Second line shows limit status if second line is Display the text is shown here Display Filter Command DF The Display Filter DF command sets the filter type and level The format is DF type level where type is either 1 for type filters or 2 for type II filters level must be 1 2 3 or 4 depending on the level of filtering desired 4 is most filtering and slowest rise time Example 123DF13 Acknowledge 123 Filter is Type I Level 3 Display Decimal Command DD The Display Decimal DD command sets the maximum number of decimal digits that are shown for Load Peak and Valley The format is DD channel number where channel is A or B and the number must be between zero and 5 Example 123DDA0 Acknowledge 123 Channel A shows 0 decimal digits MODEL 9840 PG 48 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Display Count By Command DC The Display Count by DC command sets the smallest number that the display will count by Display Count by Command for the Load or Torq Peak and Valley Count By measurements The format is Acknowledge hee DC channel code where the code is selected Oo 9 1 G1250C 123DCA3 0 Display Second Line Command D2 The Display Second Line D2 command is used to se
25. 0 VER 6 0 2 QUICK START This section will help you get your Model 9840 set up and operating in just a couple of minutes The back panel is shown below You will need to make at least two connections here First be sure that the power switch is off the lower part of the rocker should be pressed Connect the AC power line and plug it in MODEL 9840 BACK PANEL Hed FUSE T 0 315A 250V INTERFACE MODEL 9840 2596 Fuse t odeon CE Next connect a load or torque cell to the 9 pin female connector labeled Load A You should use the cabling supplied with your Model 9840 and Interface load or torque cell If you do not have a factory supplied cable see Appendix B for the recommended cell connection You are now ready to turn on the power Each time power is applied to the Model 9840 you will see a sequence of 6 messages appear on the front display For example MODEL 9840 PG 6 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Message Meaning Interface X Y Z This is the version number Serial 12345 This is the serial number Option 114236 This is the option number Last ID A LD90437 The serial number of the load cell on Ch A Last ID TQ12030 The serial number of the torque cell on Ch B ChA Max 4 00Lb Maximum rated load of the sensor on channel A Ch B Max 4 00LbI Maximum rated torque of the sensor on channel B Ch A Cal 4 00000 mVv The mV V constant used with the load cell on channel A Ch B Cal 4 00000 mVv The mV V co
26. 00 for the unit part of the command Example 123V01021 Acknowledge 123 Peak A 55 676 Example 2 123V00002 Acknowledge 2 123 Load A 120 45 Lb 123 Load A 125 29 Lb 123 Load A 137 81 Lb The value command for both channels is similar to the command for one channel with the following exceptions The item numbers available for two channel value display are 50 Cells AB 51 Peak AB and 52 Valley AB The format is V item number unit number channel A unit number channel B repeat where the item must be 50 51 or 52 and unit numbers can be found using the question mark command see above Make sure to use the proper unit numbers for the proper cell type A unit number of 08 for a torque cell will result in an unusable argument message MODEL 9840 PG 28 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 The repeat number is exactly like the one channel command It must be 0 1 or 2 Choosing repeat 1 will make the Model 9840 send you the desired value once Choosing repeat 2 will make the Model 9840 send the value at approximately 3 second intervals Choosing repeat 0 will turn off any values that are being sent by a repeat 2 command Example 1 123V5000002 Acknowledge 2 123 Load A 120 45 Lb Torg B 120 45 LbI 123 Load A 125 29 Lb Torq B 137 81 1 1 123 Load A 128 29 Lb Torq B 146 81 LbI Print Command P If the print option is purchased the print command will fetch a full set of readings like pres
27. 123 Interface Model 9840 Version 6 0 0 Serial 980500 Option 457977664 Question Mark Command This command returns a list of item numbers and unit numbers that are available on the Model 9840 that is addressed These numbers are used as arguments for the many of the commands shown below Example 123 Acknowledge 123 These are the Item numbers 00 Load A 01 Peak A 02 Vall A 03 Load B 04 Peak B 05 Vall B 09 Pos 10 Vel 13 Limits 14 Grs A 15 Grs B 16 Ch A B Alternatively torque units may be displayed or a combination of both depending upon which cell is loaded on which channel 17 Torque A 18 Peak A 19 Vall A 20 Gross 21 Torque B 22 Peak B 23 Vall B 24 Gross B 25 Ch A B These items are for value display purposes only 50 Cell AB 51 Peak AB 52 Vall AB Note If the channel is set as a load channel the cell type implied is a LOAD CELL if the channel is configured as a torque channel the cell type implied is a TORQUE CELL These are the units for Load Peak and Valley 00 Lb 01 kg 02 Q3 PSI 04 MPa 05 Klb 06 kN 07 t 08 mVv Q9 ig These are the units for Torque 00 LbI 01 NM 02 OzI 03 mVv These are the units for Position 00 In 01 Cm Q2 3 MODEL 9840 PG 26 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 These are the units for Velocity 00 I M 01 C M Front Panel Display Comma
28. 2 Point or 5 Point These items are used to calibrate a load or torque cell using known masses or torques The appropriate choice will be available depending on which cell type was chosen at the beginning of calibration a load cell will show Masses as an option and a torque cell will show Torque as an option Before you enter in the desired information another menu will ask if you want to calibrate by 2 Point or 5 Point You will then be asked for the channel the cell serial number the date the calibration unit the cell s maximum rated load or torque and the desired excitation voltage 5 0 or 10 0 volts You are then prompted to enter the value of the first mass or torque The Mass 1 Ready or Torque 1 Ready message will wait while you actually hang the mass or MODEL 9840 PG 19 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 set the torque When the Model 9840 is reading the cell it will display the Reading message for about 10 seconds During this time it is important that the masses or torque are not disturbed since all the readings taken are averaged together to obtain the calibration data The second mass torque is then entered and read If 5 Point calibration was selected masses torque three through five will be entered and read One of these readings should be at zero A No Masses Ready or No Torque Ready reading is also required During this reading a shunt check value is recorded Cal by Shunt Val This
29. 5 Throughout the rest of this section we will assume that you are using address 123 Whenever an Model 9840 executes a remote command it will issue an acknowledge that includes the address and any required data RS232 RUN MODE COMMAND SUMMARY addr H Hello fetches unit description Get item and unit numbers LE FV View item and unit settings FS item unit Set displayed item and unit Alternate display like view button F1 Switches view pointer to display line 1 upper F2 Switches view pointer to display line 2 lower or virtual display if line 2 is disabled V item unit repeat Get Value of an item and unit P repeat Print a set of readings tare peak vall pos Reset readings X Freeze display L T hold y ext Place text on display MODEL 9840 PG 25 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 RS232 RUN MODE COMMANDS The commands listed in this section mirror and in some cases extend the functions that are available from the front panel of the Model 9840 when it is in Run Mode Each entry will include the name of the command followed by a short description that includes the command format an example that shows what you would type shown in plain font and what the Model 9840 would return shown in italics Hello Command H This command fetches the model version and serial number of any unit at the specified address Example 123H Acknowledge
30. 98 Example 3 123CB3 100 Acknowledge 3 0123 Calibrate Begin 3 Command New Excitation Voltage 10 0 V Calibration Unit Lb Example 4 123CB4 1000 0 Acknowledge 4 123 Calibrate Begin 4 Command New Rated Load 1000 0 Lb MODEL 9840 PG 36 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Calibration Escape Command CE The Calibrate Escape CE command is used to cancel a calibration that was started with the Calibrate Begin CB command This format is CE Example 123CE Acknowledge 123 Calibrate Command Canceled Calibration NOT Changed Calibrate by Millivolt Per Volt Command for One Point CV The Calibrate by milli volt per Volt CV command is used to calibrate a load cell using its millivolt per volt calibration constant You must have already started a calibration using the CB command for this command to function The format is CV millivolt per volt constant Note that a shunt check calibration will also be run at this time and so it is important that the load cell is not under load when this command is entered Note that this command works for torque cell calibration as well Example 123CV4 5002 Acknowledge 123 Calibrate Command Reading for Shunt Check 10 seconds delay 123 Calibrate Command Completed Ch A S N 123456 1000 0 Lb 4 50020 mV v 10 00 V Cal on Oct27 99 553 26 Lb Shunt unused S N 63220 100 00 Lb 2 99984 mV v 10 00 V Cal on Oct27 99 49 381 Lb Shunt Ch B
31. CE command The CE or Calibration Escape command will if entered end this calibration without calibrating the unit The unit will remain calibrated according to the most recent calibration or if this is the first calibration of the unit the unit will remain uncalibrated At this point the unit is prompting the user for the first milli volt per volt value of the calibration The mV V value is entered using the Calibration by mV V Volt Command with the following format CMVV1 mV V value Example 123CMVV11 9926 Acknowledge 123 Calibrate mV V 1 Command entered Ready for Mass Value CMVM2 or CE command The unit will continue to prompt the user for mass and milli volt per volt values until the six points have been entered Then the user will see the following acknowledgement 123 Calibrate mV V 6 Command entered Ready for Mass Value CMVMO or CE command The user must now enter the CMVMO command to finish the calibration Note the load cell should have no masses on it at this point since a shunt calibration is run Example 123CMVMO Acknowledge 123 Calibrate Command Reading for Shunt Check 10 seconds delay 123 Calibrate Command Completed Ch A S N 123456 1000 0 Lb 4 50020 mV v 4 50020 mV v 4 50020 mV V 4 50020 mV V 4 50020 mV V 5 00 V Cal on Oct27 99 553 26 Lb Shunt Calibrate by mV V Torque and Volt Commands CMVT and CMVV The Calibration by mV V Torque CMVT and Volt CMVV works exactly like the cali
32. CELL Cell Output High Excite Low Sense Low Cell Output Low MODEL 9840 PG 58 PUB 2856 16
33. K VALLEY OR POSITION COMMAND 29 BREEZE DISPLAY COMMAND X 5 52 risen eoa ette Bes Pee t e ei eee Accs Doe ur cei diete e Ee gd 30 TEXT DISPLAY COMMAND LT 4 rua ae idet ane om en t ae teri E s 30 RS232 SETUP MODE COMMAND SUMMARY eere esee sete seta sta tons toss to setas etas e ease ta seta 31 RS232 SETUP MODE ense ta seta seta seta states esos e tone ea se sete sete sesso aae 32 USER DATA ENTRY 0 32 User Data View Command UV ais ette tae e da ie a e e Row kd aS tese 32 User Data Area Command 32 User Data Length Command 32 ANALOG OUTPUT COMMAND A nennen nennen 33 Analog Output View Command AV eese 33 Analog Output Set Command AS eee 33 SENSOR COMMAND 9 ie querere eoe eoe qi Me en Eve Ce Ede 33 Sensor View Channel A or B Command SA or SB esee teens enne 33 Sensor View Command SV eese 34 Sensor Select Command 88 SURE eee ERI I ek den EORR ERR ER a eee 34 Sensor Del
34. Latching on off Selecting latching off means that the limit will be de activated automatically when the source passes the reset point see next selection Selecting latching on means that once the limit is activated you must manually reset it using the Reset button If you select latching on then the limit setup is done 9 Rst This selection determines the numerical value of the source at which the limit will be deactivated reset point If you selected source gt set in step 7 then the limit is deactivated when the source is less than the reset point If you selected source set in step 7 then the limit is deactivated when the source is greater than the reset point Notes The Set and Reset conditions for each limit are evaluated independently If both conditions are met then Reset will take priority over Set Limit status may show an asterisk if the limit is enabled but there is an error in the signal source For example if the limit source is load but there are no load cells currently calibrated or the load cell has a rating of 0 0 Lb or a millivolt per volt constant of zero Another example would be if the limit source is position and zero has been entered for the encoder counts per inch constant Limits that are in this error condition will be forced to the off position as if they were disabled gt System Options This menu contains some system wide parameters that are seldom changed These are listed in a submenu that work
35. Model 9840 is a CE compliant and versatile precision instrument intended for the digital readout of strain gage sensors such as load cells and torque cells Optical encoders are also supported Here is a quick listing of its features e Full bi polar 6 digit display 999 999 using two line 20 character vacuum fluorescent display for clear precise indication of measured quantities and limit status e No knobs or dials No internal jumpers All adjustment and calibration is done using user friendly front panel menus Keylock option to prevent accidental or unauthorized changes to the unit s setup e Measure load and gross weight in pounds kilograms Newtons PSI MegaPascals kilo pounds kilo Newtons metric tons mV V or grams User defined base area for PSI and MPa Tare at any time The sum of the loads on both channels is also availabe e Measure torque and gross torque in Pound Inches Newton Meters Ounce Inches or mV V Tare at any time The sum of the torques on both channels is also availabe e Capture the load peak and valley display in pounds kilograms Newtons PSI MegaPascals kilo pounds kilo Newtons metric tons mV V or grams Reset at any time e Capture the torque peak and valley display in in Pound Inches Newton Meters Ounce Inches or mV V Reset at any time e Measure position and velocity with optional encoder input Display in English units metric units or in percent of a user defined base length Re
36. O CNECK site tem dt b ru prs M T 19 Cal by mV volt 2 Point or 6 Point eese 19 gt gt Cal by Masses or Torque 2 Point or 5 Point esee nennen rennen 19 Db Cal Dy Shunt Valde PRETI e RANDO Edere 20 Der Inch s og e RENE Tet Ie SER UD 20 20 SSYSTEM OPTIONS edt 21 ocPrinteriB aud ceca dee eU ideam dide eec 21 AutoIdentify RUPTA Se qe pete dc pde 21 2AUO Zero ete ite 21 5 Address 22 SS COM BAUCI CIE mes eed cs eser eram te RAE EN see Se 22 SS Combine e hM Lie dans Sass Tec a E Mec ie ees lest rU ES 22 D gt NATU CE 22 2R5232 EOT Chri is SER ER OU en ER e RO Ee ISBN 22 2DISPEAY OPTIONS eae r Rer vee tele dete eee oed eere 22 VENTE ORE ERO 22 Decals CABE paa 23 2 Count By Ch MB i EUR om EN a ended neta metet 23 SS Second Line nica el EE EEEE EE ce dae ctae ch M ecol a cae DNE 23 Se Filter Window eee einen 23 REMOTE OPERATION eer 24 IDIGETAL INPUTS Rt RR BER RENNES E E SR AREE PERITI EE ES 24 USB Driver
37. Physical Characteristics Package Size 7 29 X2 52 X 9 0 W XH X D Mounting Hardware Available Operating Temp 0Cto50C Storage Temp 10C to 60C Relative Humidity 95 96 without condensation The Model 9840 is C compliant MODEL 9840 PG 54 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 APPENDIX B CABLES AND CONNECTORS Load Cell Connectors DB9 Female Pin Signal EXCITE HI 6 EXCITE LO 8 AUTOID B 9 CHASSISGND Serial Port Connector DB 15 Male Signal 1 2 3 4 SERIAL GND 5 7 1 TXD Printer RXD RS485 Pin EE Ex 3 4 5 TXD Printer 6 Ly 8 RXD RS485 9 NoConnect MODEL 9840 Notes 1 If the sense lines are not used SENSE HI must be tied to EXCITE HI and SENSE LO must be tied to EXCITE LO 2 Incorrect wiring of these ports can cause damage to the internal circuitry of the unit Please contact Interface if you have questions or need assistance with these configurations Notes 1 Pins 1 through 4 are used for RS232 ASCII command set communications Use 8 data bits no parity 1 stop and set the baud rate using the Com baud rate entry on the System Options menu 2 The printer uses RS422 differential signaling on pins 5 6 and 10 Baud rate for the printer is selectable using the Printer Baud entry on the System Options menu 3 Pins 7 8 14 and 15 are used for RS485 ASCII command se
38. ate If a cell with a new serial number or new auto id is calibrated the data is added as a new entry in the cell list Cells must be calibrated for the channel on which they will be used MODEL 9840 PG 18 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Cal Check Selecting this item will run a calibration check on the cell attached to Channel A or B The Model 9840 will measure the shunt value of the cell and compare it to the shunt value that was recorded when the cell was last calibrated The rated load or torque and last calibration date for the cell are displayed followed by the currently measured shunt value and the shunt value that was recorded when the cell was calibrated Note that the Model 9840 has a switch on the back panel that allows you to select either a 30K shunt or a 60K shunt Be sure that this switch is set correctly for the cell that you are using Since this shunt check electronically applies approximately half the rated load or torque it is important that the cell is not loaded when this check is run If you see the Cell Overloaded message remove any load or torque on the cell and try the check again Cal by mV volt 2 Point or 6 Point This item is used to calibrate a cell using the manufacturer s milli volt per volt calibration factor the second point of a two point calibration that automatically sets the first point at zero or a series of six milli volt per volt points with corresponding masses u
39. brate by mV V Mass and Volt commands These commands can have up to seven parts each CMVT1 through CMVT6 and CMVTO and CMVV1 through CMVV6 and CMVVO You must have already started a calibration using the CB and CMV6 commands for any of these commands to function To input the first torque issue the MODEL 9840 PG 38 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Calibration by mV V Torque 1 CMVT1 command The torque is entered using the following format CMVT1 torque value Entering this command will result in the unit prompting the user for the first milli volt per volt command Example 123CMVT15 0005 Acknowledge 123 Calibrate Torque 1 Command entered Ready for mV V Value CMVV1 or CE command The CE or Calibration Escape command will if entered end this calibration without calibrating the unit The unit will remain calibrated according to the most recent calibration or if this is the first calibration of the unit the unit will remain uncalibrated At this point the unit is prompting the user for the first milli volt per volt value of the calibration The mV V value is entered using the Calibration by mV V Volt Command with the following format CMVV1 mV V value Example 123CMVV11 9926 Acknowledge 123 Calibrate mV V 1 Command entered Ready for Torque Value CMVT2 or CE command The unit will continue to prompt the user for mass and milli volt per volt values until the six points have been entered Then the user will
40. ction chooses which of the limits you want to set up 1 4 Use the left right or plus minus buttons to change the number Press enter to accept the displayed number Press escape to return to the setup mode main menu 2 Normally Open Closed This selection determines if the switch contacts are open or closed when the limit is de activated 3 Enabled Disabled Choosing enable allows the limit to operate as specified by the following selections Choosing disable places the limit in its normal state and completes the limit setup 4 Source This selection allows you to scroll through a list use either the left right or plus minus buttons to select the source of the data that will drive the limit The standard list will include load or torque peak valley position and velocity Press enter to select the displayed item 5 Units This entry allows you to scroll through the list of available units for the data source you have chosen in the previous step 6 Set This is the numerical value of the source at which the limit will be activated set point It is specified in the units you chose in the previous step MODEL 9840 PG 20 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 7 Trip if source Set Choosing source set means that the limit will be activated when the source becomes larger than the set point Choosing source set means the limit will be activated when the source becomes less than the set point 8
41. d A Lb Set 50 00 Trip gt Set Latch Off Reset 10 00 Example 5 123L1SA 10 Acknowledge 5 123 Lim 1 NO Disabled Load A Lb Set 50 00 Trip gt Set Latch Off Reset 10 00 Example 6 123L1SA 11 Acknowledge 6 123 Lim 1 NC Enabled Load A Lb Set 50 00 Trip gt Set Latch Off Reset 10 00 Limit Setup Escape LE The Limit Escape LE command is used to cancel a limit setup that was started with the Limit Set LiS command This format is LE Example MODEL 9840 PG 44 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 123LE Acknowledge 123 Limit Setup Command Canceled Limit Reset Command LiR The Limit Reset LiR command is used to manually reset a latching limit that has been activated The format is L limit number R Example 123L1R Acknowledge 123 Reset Limit 1 System Options Command The system Options command has 8 subcommands that are used to view or set the options that appear on the system options menu Option View OV displays all the settings in the system options menu Option Printer OP is used to set the printer baudrate Option Auto ID Ol is used to turn auto identification of load cells on or off Option Auto Zero OZ is used to turn auto zeroing of load on or off Option Com Address OA is used to change the communications address of the unit Option Baudrate OB is used to change the communications baudrate Option Linefeed OL is used to turn the auto line feed option on or off and OE
42. d after the CTP1 command has completed The example uses 500 Lbl for the second calibration torque Be sure you have placed the torque on the cell before entering this command since reading will begin immediately Example 123CTP2500 Acknowledge 123 Calibrate Torque 2 Command Reading 10 seconds delay Calibrate Torque 2 Command Ready for CTP3 or CE command Torques three through five are done in a similar manner The Calibrate Torque Point 0 CTPO command completes the 2 or 5 point torque calibration Remove the torque MODEL 9840 PG 41 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 from the cell before entering this command since it will perform the shunt calibration measurement that is recorded for use with the calibration check command The format is CTPO Example 123CTPO Acknowledge 123 Calibrate Command Reading for Shunt Check 10 seconds delay 123 Calibrate Command Completed Ch A S N 123456 100 00 LbI 3 00150 mV v 3 00230 mV v 3 00238 mV v 3 00353 mV v 10 00 V Cal on Oct27 99 49 532 LbI Shunt unused S N 13368 10 00 Lb 3 00121 mV v 10 00 V Cal on Oct27 99 4 9292 Lb Shunt unused S N 63220 100 00 Lb 2 99984 mV v 10 00 V Cal on Oct27 99 49 381 Lb Shunt Ch S N 89991 1000 0 Lb 4 50015 mV v 5 00 V Cal on Oct27 99 486 45 Lb Shunt Calibrate by Shunt Command CS The Calibrate by Shunt CS command is used to calibrate the cell using the shunt calibration factor express
43. driver has finished installing MODEL 9840 PG 24 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Communications Settings The Model 9840 supports remote operation using a standard Remote interface consisting of ASCII characters and terminal emulation software package such as HyperTerminal or ProComm The baud rate is set using the Com Baud rate item on the System Options menu Supported rates are 300 600 1200 2400 4800 9600 and 19 2k baud There must be 8 data bits no parity and 1 stop bit To support the multi drop Remote option each unit is assigned a communications address which is set using the Com Address item on the System Options menu Communications Format All the commands have the following format 123XYZ lt CR gt The symbol initiates the command all commands must begin with this symbol The number 123 is the address of the Model 9840 which should respond to this command This MUST be 3 digits so type 001 for unit one and 026 for unit twenty six The command itself will be a sequence of letters such as the XYZ shown above If the command requires a number as one of its parameters the number must be followed by the pound sign Numbers that are less than one should include a leading zero so you should type 0 123 to enter one hundred twenty three thousandths Commands are not processed until a carriage return CR is sent No Model 9840 will respond to address 000 All Model 9840 s will respond to address 25
44. eave some jitter on the end digits Type Il filters are more advanced and are optimized for the typical industrial environment Both filter types allow you to select from 4 levels of filtering with Level 1 being the least filtering and Level 4 being the most filtering The settling time for each of the 4 levels of filtering is shown in the table below Settling Time seconds 60 60 30 10 Read Rate per second MODEL 9840 PG 22 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Decimals Ch A B This lets you set the maximum number of digits to the right of the decimal that are displayed or printed for load or torque peak and valley When large cells are selected the number of decimal digits shown may be limited for example a 100 Lb cell will allow 3 digits while a 1000 Lb cell will only allow 2 digits Also if a number is too large to fit on the display some decimal digits may be dropped the display will auto range The number of digits shown for position data depends only on the number of counts per inch of the encoder and is not affected by this setting Count By Ch A B This allows you to choose the smallest unit of counting for the display of load or torque peak and valley Counting by 1 2 5 10 and 20 are the options Note that the operation of the analog outputs and the limits is not effected by the settings of decimal point or smallest count Thus if you set a limit to be activated at 10 001 Lbs
45. ect the displayed item 2 Units This entry allows you to scroll through the list of available units for the data source you have chosen in the previous step 3 Full This entry specifies the value of source data in the selected units that will cause the Model 9840 to output positive full scale analog voltage 410 0 volts 4 Zero This entry specifies the value of source data in the selected units that will cause the Model 9840 to output zero analog voltage 0 0 volts Once you have entered these 4 selections the analog output is setup 4 20MA Output Option This option allows the user to output with current milliamps rather than voltage It operates similarly to Analog Output using the same submenus but in this case the Full and Zero data entered control the distribution of output in milliamps from the unit given certain inputs to the cell Particularly the number entered for Zero will set the corresponding input in Lbs to output 12 milliamps the mid point between four and twenty milliamps and the unit will extrapolate other output values between 4 and 20 milliamps If this option is enabled the following steps will set up the unit follow the instructions for Analog Output until Source is displayed Toggle through until the Load A is on the display Press the enter button to bring up the Lb menu Press the enter button again and the 4 0000 Lb Full menu will be displayed This is where the maximum Lbs for the cel
46. ed in pounds or pound inches for a torque cell This command will only function if you have already issued a Calibrate Begin CB command Note that the cell should not have any load or torque on it for this command to operate correctly The format is CS shunt value in Lb or Lbl The example shows calibration of a load cell using a shunt value of 553 26 Lb Example 123 5553 26 Acknowledge 08123 Calibrate Shunt Command Reading 10 seconds delay 0123 Calibrate Command Reading for Shunt Check 10 seconds delay 08123 Calibrate Command Completed Ch A S N 123456 1000 0 Lb 4 50014 mV v 10 00 V Cal on Oct27 99 553 26 Lb Shunt unused S N 63220 100 00 Lb 2 99984 mV v 10 00 V Cal on Oct27 99 49 381 Lb Shunt Ch S N 89991 1000 0 Lb 4 50015 mV v 5 00 V Cal on Oct27 99 486 45 Lb Shunt Calibrate Counts Per Inch Command CI This command has two subcommands a view command CIV and a set command CIS MODEL 9840 PG 42 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 The Calibration counts per Inch View CIV command displays the current setting of the encoder counts per inch constant Example 123CIV Acknowledge 123 Encoder is 32000 counts per inch The Calibration counts per Inch Set CIS command allows you to change the current setting of the encoder counts per inch constant Example 123CIS64000 Acknowledge 123 Encoder is 64000 counts per inch Limits Command L
47. el 9840 at all times with torque measurements acquired when a torque cell is attached to a channel and load measurements acquired when a load cell is attached The display just selects which particular item you wish to see and what units are used to display or print this data The buttons have the functions indicated by the upper set of labels Item Tare Reset View Esc Print Unit Each of these is described below Item Button The Item button cycles through the list of different items that can be displayed Load A Peak A Vall A Grs A Load B Peak B Vall B Grs B Ch A B Pos Vel Limits Torq A or B substitutes for Load A or B when appropriate Use the Unit button to change the units that are used for the currently displayed item Ch is only available when the cells on both channels are of the same type load or torque Tare Button The Tare button sets the current load or torque to zero for channel A channel B or channels A and B A submenu will allow you to select what channel you want to tare It does not matter what is being displayed when you press this button MODEL 9840 PG 10 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 The load or torque is always reset to zero A single channel unit will automatically set Load A or Torque A to zero Reset Button The Reset button brings up a list of things that you might want to set to zero If this is a 2 channel unit the following menu will appear gt Reset Ch A
48. ensor Select lets you manually set which load or torque cell calibration data is used If you use auto id cells you will never need this menu e gt Calibration provides access to calibration for cells or optical encoders e gt Limits allows you to set the source and options for the 4 contact closure switches e gt System Options contains entries to set the printer baud rate enable or disable automatic sensor identification enable or disable automatic load or torque zeroing set the serial communications address baud rate line feed and RS232 options and choose whether or not to retain the most recent tare value through power down e gt Display Options lets you choose the filtering that is applied to the load or torque measurements an optional window of data incrementation on which to turn the filter off the number of decimal digits that are shown on the display and on the print the count by values for channels A and 1 2 5 10 or 20 and whether the second line of the display shows the limit switch status a blank line another display or text The Plus or Right button or gt will scroll forward through this menu The Minus or Left button or lt will scroll backward through this menu The Enter button selects the currently displayed menu item The Esc button will return you to Run Mode MODEL 9840 PG 14 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Entering Numerical Data
49. ete Command SD e ties d OR WR Gees ba Sank aw sg ee espe 34 CALIBRATION COMMAND 4 Savas dees ise ae rd eae ERR A cvs 35 Calibration Check Command CQC 35 Calibration Begin Command CB esses eterne tenete tenente nn nennen enne enne 35 Calibration Escape Command 37 Calibrate by Millivolt Per Volt Command for One Point CV esee 37 Calibrate by Millivolt Per Volt Command for Six Points CMV6 eee eene 37 Calibrate by mV V Mass and Volt Commands CMVM and CMWV sess 37 Calibrate by mV V Torque and Volt Commands CMVT and CMVV isses 38 Calibrate by Masses Command 39 Calibrate by Masses Point Command CMP cesses eene eene entente enne trennen tenente nnn 40 Calibrate by Torque Command CT e pet deg de ee dente 41 Calibrate by Torque Point Command CTP eese 41 Calibrate by Shunt Command 42 Calibrate Counts Per Inch Command CI eese eese eene tenentes enne nentes 42 LIMITS COMMAND tee ee Rte NU Retirer cnt ND 43 Limit View Command IV usi certe bet cott e ie eee pe pa E 43 Limit Set Command LAS REESE REM TEE NE IEEE 43 Limit Setup Escape wise sass eet ERO E AE vag AEE ope rre Etre 44 Limit Reset Command 45 SYSTEM OPTIONS
50. ew current settings Set analog output Sensor Select View current sensor on A View current sensor on B View current sensors Select sensor by S N Delete sensor by S N Calibration Shunt Check load cell Begin load cell calibration Escape load cell calibration Calibrate by mV V 1 pt Calibrate by mV V 6 pt Calibrate by Mass 2 amp 5 pt Calibrate by Torque 2 amp 5 pt Calibration by Shunt Value Encoder counts per Inch View counts inch Set counts inch Limits View current settings Setup limit Escape from limit setup Manual reset for latch System Options View current settings Printer baudrate Auto Identify load cells Auto Zero load Com Address Com Baudrate Com Linefeed Retain Tare End of Transmission Char Display Options View current settings Filter select Filter Window Decimal digits max Smallest count 2nd line shows a blank line limits text or a display Set the text displayed on 2nd line MODEL 9840 PG 31 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 RS232 SETUP MODE COMMANDS The commands in this section allow you to change the setup of the Model 9840 You will notice that these commands form a menu which approximately duplicates the Setup Mode menu used during setup of the Model 9840 from the front panel There are additional commands that are for RS232 use only If the optional Keylock is installed and locked you will not be to alter the setup until the unit has been unlocked The ackno
51. f the cell you wish to delete is displayed You may need to shut off auto id if it is on see the System Options menu for details Then press both the plus and minus keys at the same time The Model 9840 will ask Delete Sensor to be sure that you intend to delete this calibration data Pressing Enter will delete the cell data from the list Pressing Escape will return to the cell select without changing the list gt Calibration This menu is used to access all methods of calibration that are supported by the Model 9840 Selecting calibration from the setup mode main menu will bring up a password entry field Successful entrance of the password 888 will bring up a submenu which asks for the cell type Toggle through either Load or Torque and press enter when appropriate Another submenu will appear listing the various types of calibration This submenu is used exactly like the main menu Press left right or plus minus to change the menu item Press escape to return to the setup mode main menu Press enter to select the displayed menu item If you are re calibrating a cell the Model 9840 will recognize it using either the auto id or a manually entered serial number Any time you overwrite existing cell calibration data you will first be warned with the Overwrite Data message Pressing enter will overwrite pressing escape will cancel the calibration Another method of overwriting existing data is to delete the sensor first and then calibr
52. iew CIV displays the current setting of the encoder counts per inch constant and Calibration counts per Inch Set CIS lets you set the encoder counts per inch constant Cells must be calibrated for the channel on which they will be used Calibration Check Command CC The Calibration Check CC command runs a calibration check on the currently selected cell Note that the load cell should not be under load or torque when this check is run During the 10 second shunt calibration the front panel will show 5232 Cal Check After the 10 seconds the unit will return to run mode and send the acknowledge line shown below This indicates both the current reading of the shunted cell and the reading that was recorded when this cell was last calibrated Example 123CCA Acknowledge 123 Cal Check Ch A S N 123456 Shunt Value is 49 532 Lb Cal Value was 49 531 Lb Calibration Begin Command CB The Calibration Begin CB command is a 4 part command used to start a calibration by any method You must issue a CB command before trying calibration by mv volt masses or shunt CV CM CT or CS While the Model 9840 is being calibrated using the remote commands the front panel will show CAL STARTED Pressing the front panel Esc button will cancel the calibration and issue a warning to the RS232 terminal If any remote commands other than calibration commands are issued the calibration will also be canceled The acknowledgement will indicate
53. interface Taila gt Load A 8 0008 Lb Load 9 0000 Lb ITEM TARE RESET VIEW UNIT MODEL 9840 Advanced Force Measurement Model 9840 Digital Process Monitor INTERFACE MODEL 9840 VER 6 0 2 CONTENTS CONTENTS M 1 INTRODUCTION eR 4 QUICK START ee o araoa ss M 6 RUN MODE 9 FEM BUTTON 2 reet tte rd a a ae atc ai t ei 10 TARE BUTTON 2 reete deua 10 RESETBUEION25SEibese 11 VIEW BUTTON 11 ESC BUTTON ome Urt che do te A 11 RII NI EE NEIN EM 12 SETUP MODE SUMMARY c Q 13 SETUP MODE e M 14 ENTERING NUMERICAL DATA csessccccccecsessaececececsenssaececececsessaaececececeessaaesecececeeseaaeaecececeenenaeaecececsesenseaeeeeeens 15 ENTERING ALPHANUMERIC DATA cccccecesssssccecececeessssececcceccesauececececeeseaaeaecececseseaasaeseeeceeseasaesececeesenssaeeeeeees 15 SLISER DATABNTRY 5e aae deme e uat ui ee 15 S gt Base Area CW AB kae nete OE OE GM E 15 DS Base LENG s aat e i RM Br e OA PR ree ee MEE 15 SSANALOG OUEPUT Ee ER ER GRE ree EE GER RE E HER ta ERE EC REN ERES 15 SSENSOR SEEECT icoiee te PEE EN ER eee D RR CHEER RE UL 17 SENSOR DELETE 55e ai ah Bae E 18 PCALIBRATION niet tarea cd tee breeders ees 18 no C
54. is set to Print it will send a set of data to the printer This will contain the current readings of load peak valley position velocity and limit status The units used for printing will be the units last selected on the numerical display The printer must be a serial printer that supports ESC P protocol Many Epson printers with serial ports are known to be compatible Appendix B gives the pin assignments on the serial connector Unit Button The Unit button cycles through the list of units that are available for the item that is currently being displayed MODEL 9840 PG 12 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 SETUP MODE SUMMARY The table below summarizes the setup mode menus Detailed information about each individual item is presented in the following sections Setup mode gt User Data Entry m P gt Analog Output L gt Sensor Select gt Calibration gt gt Limits gt System Options gt gt Base Area Ch A B gt gt Base Length Source gt Units gt Full Zero Channel Serial Number List Cal Info password access and cell type gt gt Cal Check gt gt Cal by mV volt Cal by Masses or Torque Cal by Shunt gt gt Counts Inch Select NO NC 5 Enable gt Source gt Units gt Trip gt Latch Reset Done gt gt Printer Baud gt gt Auto Identify gt gt Auto Zero Ch A B gt gt Com Address gt gt Com Baudrate gt gt Com Line
55. ively Example 123 2 1 Acknowledge 0123 Auto Zero Channel A is on Auto Zero Channel B is off Option Com Address Command OA The Option com Address OA command is used to change the communications address assigned to this unit The format is OA new address Note that valid addresses are 1 through 254 Example 1230A003 Acknowledge 123 Com Address is 003 MODEL 9840 PG 46 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Option Com Baudrate Command OB The Option com Baudrate OB command is used to change the communications baudrate for this unit The format is OB code where the baudrate codes are given in the table Code 7 is a special baudrate that is reserved for future expansion Note that the acknowledgement is given at the current baudrate and then the baudrate is changed Example 1230B2 Acknowledge 123 Changing Communications Baudrate to 1200 Option Linefeed Command OL The Option com Linefeed OL command turns on or off the generation of linefeed characters when the Model 9840 sends information to your RS232 terminal The format is OL 0 or 1 where 0 turns linefeeds off and 1 turns them on Example 1230L1 Acknowledge 123 Com Linefeed is on Option Tare Retain Command OT The Retain Tare OT command enables and disables the retention of the current tare value in memory for use after the unit has been powered down and then powered back up The format f
56. l should be entered Press enter and the 0 0000 Lb Zero menu will be displayed This is where the offset from zero the value in lbs that will give a 12 milliamp should be entered Press the enter button to return to the Analog Output menu and then press the escape button to return to the normal display Example outputs with varying Full and Zero Values assuming a 4 00 Lb calibrated cell with 10 V excitation 1 Full 4 0000 Lb Zero 0 0000 Lb Input Mv V Output Volt Output MA 4 10v 20mA 3 7 5v 18 2 5 0v 16mA 1 2 5v 14mA 0 Ov 12mA 1 2 5V 10mA 2 5 0v 8mA 3 7 5V 6mA 4 10 0v 4mA MODEL 9840 PG 16 PUB 2856 16 2 Full 4 0000 Lb INTERFACE MODEL 9840 VER 6 0 2 Zero 4 0000 Lb Input Mv V Output Volt Output MA 4 Ov 12mA 3 2 5V 10mA 2 5 0v 8mA 1 7 5V 6mA 0 10 0v 4mA 1 10 0v 4mA 2 10 0v 4mA 3 10 0v 4mA 4 10 0v 4mA 3 Full 2 0000 Lb Zero 0 0000 Lb Input Mv V Output Volt Output MA 4 10 0v 20mA 3 10 0v 20mA 2 10 0v 20mA 1 5 00v 16mA 0 Ov 12mA 1 5 0v 8mA 2 10 0v 4mA 3 10 0v 4mA 4 10 0v 4mA 4 Full 2 0000 Lb Zero 2 0000 Lb Input Mv V Output Volt Output MA 4 10 0v 20mA 3 5 0v 16mA 2 Ov 12mA 1 5 00v 8mA 0 10 00v 4mA 1 10 0v 4mA 2 10 0v
57. n No other cells are listed MODEL 9840 PG 33 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Example 123SA Acknowledge 123 This is the list of cell calibration data Ch A S N 123456 100 00 Lb 3 00150 mV v 10 00 V Cal on Oct27 99 49 532 Lb Shunt Sensor View Command SV The Sensor View SV command has the format SV It returns information about the currently selected cell including the serial number the maximum load rating the millivolt per volt calibration constant the excitation voltage used the latest date of calibration and the shunt value recorded during that calibration All other cells currently in the unit are listed as well Example 123SV Acknowledge 123 This is the list of cell calibration data Ch A S N 123456 100 00 Lb 3 00150 mV v 10 00 V Cal on Oct27 99 49 532 Lb Shunt unused S N 13368 10 00 Lb 3 00121 mV v 10 00 V Cal on Oct27 99 4 9292 Lb Shunt unused S N 63220 100 00 Lb 2 99984 mV v 10 00 V Cal on Oct27 99 49 381 Lb Shunt Ch S N 89991 1000 0 Lb 4 50015 mV v 5 00 V Cal on Oct27 99 486 45 Lb Shunt Sensor Select Command SS The Sensor Select SS command is used to select the calibration data for a stored cell using the cell serial number The format is SS channel serial number Example 123SSA13368 Acknowledge 123 This is the list of load cell calibration data unused S N 123456 100 00 Lb 3 00150 mV v 10 00 49 532 Lb Shunt Ch A
58. nd F This command is used to set the front panel display of the Model 9840 to a desired combination of item and unit There are five subcommands Front panel View FV Front panel Set FS Front panel Alternate FA Front panel pointer control to line 1 F1 and Front panel pointer control to line 2 F2 Front Panel View Command FV The Front panel View FV command just tells you what is currently on the display and what will be displayed when the View button on the front panel is pressed Example Q123FV Acknowledge 08123 Active Display shows Load A in Lb Other Display shows Peak A in Lb Front Panel Set Command FS The Front panel Set FS command allows you to specify the item number and unit number for what is currently on the front panel display The format is FS item number unit number where the first item and unit numbers are 2 digits each and may be found using the question mark command Example 123FS0200 Acknowledge 123 Active Display shows Vall A in Lb Other Display shows Peak A in Lb Front Panel Alternate Command FA The Front panel Alternate FA command allows you to switch between the currently displayed item and unit and the alternate item and unit just as if you had pressed the View button Example 123FA Acknowledge 123 Active Display shows Peak A in Lb Other Display shows Vall A in Lb Front Panel Pointer Control to Line 1 F1 The Front Panel Pointer Control to Line 1
59. nd GND available on pins 26 and 24 The Model 9840 will also accept 5 VDC encoder inputs but these MUST be differential Single ended 5 VDC inputs are not supported on the standard unit Options for 5 VDC encoders are available Pin 26 will supply 5 VDC for this option and must be ordered accordingly Chart Rec Connector DB9 Male Pin Signal _ O ANALOG OUT Notes 1 The source and scaling of ANALOG OUT is selected through the menus 2 The HIGH BANDWIDTH OUT is a ANALOG OND buffered analog output permanently ELA 3 3 If the 4 20 mA Option is purchased m m CHANNEL 2 9 ANALOG OUT Optional connected to the load cell channel 7 4 20mA OUT CHANNEL B Dane WO comet c 9840 VOD HIGH BANDWIDTH OUT CHANNEL B e Re PG 56 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 USB Connector Pin Name Description 1 VCC 5 VDC 2 D Data 3 D Data 4 GND Ground MODEL 9840 PG 57 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Precision Shunt Calibration Resistors This diagram shows the connection of the precision internal shunt resistors The back panel switch shown to the left of the two resistors selects between 30 and 60 KO The shunt check relay shown to the right of the two resistors connects the selected resistor between the Excite High and the Cell Output High Sense High Excite High BoKo LOAD
60. nge the window simply repeat the steps above Instead of 0 and Lbs in the current window display you will see the most recently entered values Turning the window off resets the window value to 0 and Lbs or Lbl for torque Note that changing a cell type on a channel will automatically disable the filter window for that channel reset the units to Lb or Lbl and set the window value to 0 The window must then be reset and re enabled by the user MODEL 9840 PG 23 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 REMOTE OPERATION Digital Inputs There are 4 digital inputs available on the Model 9840 They are accessible on the Digital I O connector on the back panel pins 9 16 These inputs are individually opto isolated and include current limiting resistors An input voltage anywhere from 4 to 22 volts DC may be used to obtain the on state See Appendix B for a full description of the Digital I O connector If you do not require isolation for your application you can use the 5 or 12 volt and GND available on the Digital I O connector pins 24 26 These 4 inputs are called IN1 through IN4 and have the following standard functions IN1 will Tare the Load or Torq to zero while it is in the On state IN2 will Reset the Peak and Valley measurements while it is in the On state IN3 will Reset the Position measurement while it is in the On state INA will send one set of measurements load or torque peak valley position velocity
61. nstant used with the torque cell on channel B Note If either of these sensors was calibrated by 5 Point Mass then 4 mV V constants will be displayed here Ch A Exc 5 00 Volt Excitation voltage used with the load cell on channel A Ch B Exc 10 00 Volt Excitation voltage used with the torque cell on channel B Each of these messages will be displayed for about 3 seconds After that the front display will start showing the current readings from the sensor MODEL 9840 FRONT PANEL Load A 0 808808 Lb INTERFACE MODEL 3844 TARE RESET VIEW UNIT C gt Jenrery esc P al mm MODEL 9840 The example above shows that Load A is 0 0000 Lb The second line of the display shows text To change what item is being displayed press the leftmost button This will cycle through the list of items load A peak A valley A gross A load B peak B valley B gross B channel A B pos velocity lim If a torque cell is loaded on either channel the display will show torq rather than load for the appropriate channel Channel A B will only appear when both channels are attached to sensors of the same type load or torque MODEL 9840 PG 7 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 The rightmost button will change the units that are being used Repeated presses of this button will cycle through the list of units available for the currently displayed item For example with Load A showing you would
62. or the OT command is OT 0 or 1 where 0 is disable and 1 is enable Once enabled the tare values are retained until this option is disabled Disabling the tare retention option resets the tare values for both channels to 0 Example 1230T1 Acknowledge 123 Retain tare is on Option End of Transmission Character OE The end of transmission character is a non visible character hexadecimal 0x04 that is sent at the end of each response by the unit to an RS232 command The character is sent after the last carriage return line feed returned by the unit with one exception when the user is viewing channel values with the 123V item unit repeat and sets the value of repeat to 2 streaming output the character is sent immediately prior to the streaming output that the unit will send The OE command enables or disables this character and its format is OE 0 or 1 where 0 is disable and 1 is enable Example Q1230E1 Acknowledge MODEL 9840 PG 47 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 0123 RS232 EOT is on Display Options Command D The Display options command has 5 subcommands used to set options that effect the front panel display of the Model 9840 Display View Command DV The Display View DV command is used to return the current values of all the display options The format is DV Example 123DV Acknowledge 123 Filter is Type II Level 2 Filter Window A is off if on the window value is
63. presses of this button will cycle through the list of units available for the currently displayed item For example with Load showing you would see Lb kg PSI MPa Klb kN t mV V grams and then back to Lb will show Lbl NM Ozl and mV V MODEL 9840 PG 9 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 The table below summarizes the options Whether the user sees torque or load for each channel depends upon the cell type that was calibrated or selected for that channel Load Pounds Kilograms Newtons PSI MegaPascals Kilo Pounds Kilo Newtons Metric Tons mV V Peak Pounds Kilograms Newtons PSI MegaPascals Kilo Pounds Load Kilo Newtons Metric Tons mV V Valley A B Pounds Kilograms Newtons PSI MegaPascals Kilo Pounds Load Kilo Newtons Metric Tons mV V Gross A B Pounds Kilograms Newtons PSI MegaPascals Kilo Pounds Load Kilo Newtons Metric Tons mV V Channel Pounds Kilograms Newtons PSI MegaPascals Kilo Pounds A B Ld Kilo Newtons Metric Tons mV V grams Torq A B Pound Inches Newton Meters Ounce Inches mV V Peak Pound Inches Newton Meters Ounce Inches mV V Torque Torque Torque A B Tq nches Centimeters Percent of Base Length Velocity Inches per Minute Centimeters per Minute Limits Shows state of each switch 1 for on O for off dash for disabled asterisk for source error All of these measurements are acquired by the Mod
64. s exactly like the setup mode main menu Printer Baud The front panel print button and the RS232 print commands will use this baud rate for communication with your printer This setting has no effect on units that are not equipped with the printing option 57 6 K baud is commonly used on older serial printers Epson Stylus 11 230 4 baud is used on more recent serial printers Epson Stylus Color 600 Color 800 Auto Identify This allows you to turn automatic cell identification on or off Usually you can leave auto id on even if you never use automatic cell identification In order to use this function you must either have an auto id equipped cell or use an in line auto id module attached to your cell cable Auto Zero Ch A B This menu lets you enable or disable auto zeroing for measurements on Channel A or B When enabled this function will tare the load or torque to zero any time that it has remained within 10 counts of zero on the display for 10 seconds MODEL 9840 PG 21 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 gt gt Com Address This item allows you to set the address of this unit used for the RS232 ASCII command set Valid values are 1 through 254 If the RS232 multi drop option is installed you must be sure that all the attached units have different addresses to prevent data collisions Com Baudrate This sets the baud rate for the RS232 ASCII command set Available values are 300 600 1200 2400
65. see Lb kg N PSI MPa Klb kN t mV V grams and then back to Lb With Torq A you will see Lbl NM Ozl and mV V Switching from a load to a torque cell and back will automatically reset Analog Limit and Filter Window settings to zero and or disabled for that particular channel See information under each of these options for details on how they work MODEL 9840 PG 8 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 RUN MODE The Model 9840 has three modes of operation Run mode Setup mode and System Calibration mode At power on it will be in Run mode interface gt Load A 8 8660 Lb INTERFACE MODEL 9844 ITEM TARE RESET VIEW UNIT nE e em iubens MODEL 9840 The first line of the display show an item label Load A a value 0 0000 and a unit label Lb The second line of the display can show the status of the 4 contact closure limit switches show another display show text or be blank The above example shows text INTERFACE MODEL 9840 To change what item is being displayed press the leftmost button This will cycle through the list of items Load A Peak A Vall A Grs A Load B Peak B Vall B Grs B Ch A B Pos Vel and Limits If a torque cell is attached rather than a Load Cell Torg A or B will replace Load A or B Channel A B will only appear when both channels are attached to sensors of the same type load or torque The rightmost button will change the units that are being used Repeated
66. set at any time e Four contact closure Limit switches You can set which signal drives the limit load torque peak valley position or velocity normally open normally closed set point and manual reset latched or automatic reset not latched e Print current readings of load torque peak valley position and velocity using the currently selected units at the touch of one button optional e Automatic identification of calibrated cells with auto id option e Calibration for cells using manufacturer s milli volt per volt calibration factor 6 point mass and milli volt per volt 2 or 5 point known mass 6 point torque and milli volt per volt 2 or 5 point known torque or internal precision shunt calibration A back panel switch allows you to choose between two values used for the shunt calibration so there is no need to open the unit e Analog output of any signal load torque peak valley position velocity with user defined scale factor and offset Large buffered 10 00 volt output MODEL 9840 PG 4 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Remote operation using standard RS232 ASCII command set Each unit is set up to interact with the InterView software that can save tests export data to a spreadsheet and much more Back panel digital inputs for tare peak and valley reset position reset and print Other functions available as custom programmed options MODEL 9840 PG 5 PUB 2856 16 INTERFACE MODEL 984
67. sing the front panel print button These will be in the units that are currently selected on the numerical display The format is P repeat number where the repeat number must be 0 1 2 or 3 Repeat 1 will return 1 set of readings to the RS232 terminal Repeat 2 will return a set of readings approximately every three seconds like the value command Repeat 0 will turn off printing that was started with repeat 2 Repeat 3 will send one set of readings to the serial printer attached to the Model 9840 instead of to the RS232 terminal Example 123P1 Acknowledge 123 Load A 45 625 Lb Peak A 82 396 Lb Vall A 0 005 Lb Load B 32 415 Lb Peak B 47 483 Lb Vall B 0 0001 Lb Pos 3 500 In Vel 0 0 I M Grs 45 625 Lb Grs B 32 415 Lb Ch 78 040 Lb Limits 0 00 1 Reset Tare Peak Valley or Position Command R This command allows you to reset the tare peak valley or position readings The format is R tare A peak A valley A tare B peak B valley B position select where the selects are either a 0 don t reset or a 1 reset Thus you can reset any combination of these readings with a single command Example MODEL 9840 PG 29 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 123R1000000 Acknowledge 123 Reset Tare A Example 2 123R0111000 Acknowledge 2 0123 Reset Peak A Valley A Tare B Freeze Display Command X In Run Mode the freeze display command will freeze and unfreeze the run mode numerical di
68. splay and the values sent from the unit for RS232 output using either the remote Value or Print command Send the command once to freeze the display and output at the current value Send again to return display and output to actual reading from sensor Text Display Command T This command allows you to put a line of text on the front panel display of the Model 9840 The format is T text where text is the message that you want to display The text is limited to the number of characters that can be shown on the front panel display Example 123TStress Test Ready Acknowledge 0123 Text Displayed Stress Test Ready MODEL 9840 PG 30 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 RS232 SETUP MODE COMMAND SUMMARY addr lt lt ooco n lt gt lt E lt lt E channel number number item unit full zero channel serial number serial number see text for format mv v constant see text for format see text for format see text for format shunt value Lb V S number see text for format baudrate code 0 or 1 channel 0 or 1 new address baudrate code 0 or 1 0 or 1 0 or 1 type level see text for format channel number digits channel countby code B L T or D text User Data Entry View current settings Set Base Area Set Base Length Analog Output Vi
69. st mass Be sure you have placed the mass on the load cell before entering this command since reading will begin immediately Example 123CMP10 0 Acknowledge 123 Calibrate Mass 1 Command Reading 10 seconds delay Calibrate Mass 1 Command Ready for CMP2 or CE command The Calibrate Mass 2 CMP2 command has the format CMP2 mass This command can only be issued after the CMP1 command has completed The example uses 500 Lb for the second calibration mass Be sure you have placed the mass on the load cell before entering this command since reading will begin immediately Example 123CMP2500 Acknowledge 123 Calibrate Mass 2 Command Reading 10 seconds delay Calibrate Mass 2 Command Ready for CMP3 or CE command Masses three through five are done in a similar manner The Calibrate Mass Point 0 command completes the 2 or 5 point mass calibration Remove the masses from the load cell before entering this command since it will perform the shunt calibration measurement that is recorded for use with the calibration check command The format is CMPO Example 0123CMPO Acknowledge 08123 Calibrate Command Reading for Shunt Check 10 seconds delay 08123 Calibrate Command Completed Ch A S N 123456 100 00 Lb 3 00150 mV v 3 00230 mV v 3 00238 mV v 3 00353 mV v MODEL 9840 PG 40 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 10 00 V Cal on Oct27 99 49 532 Lb Shunt unused S N 13368 10 00 Lb
70. sually listed on the load cell calibration certificate or torques Before you enter in the desired information another menu will ask you if you want to calibrate by milli volt per volt or 6 point milli volt per volt Pressing the arrow keys will allow you toggle between mV volt and 6 point mV volt modes You will then be asked for the channel the cell serial number the current date the calibration unit the cell s maximum rated load or torque and the desired excitation voltage 5 0 or 10 0 volts If milli volt per volt calibration was selected you are then prompted to enter the manufacturer s milli volt value If 6 point milli volt per volt calibration was selected you are prompted for each mass or torque and milli volt per volt value A piece wise linear interpolation is then performed between adjacent points One of these points should be zero mass and zero milli volts per volt Enter each of these selections as prompted or press the escape button at any time to return to the setup mode main menu without changing the calibration The cell should not be under load or torque when this calibration method is used since a shunt value will be measured and recorded for later use with Cal Check feature described above The No Masses Ready or No Torque Ready message is intended to remind you of this fact This general sequence of prompts and user responses also applies to the 5 point mass or torque calibration Cal by Masses or Torque
71. t communications Use 8 data bits no parity 1 stop and set the baud rate using the Com baud rate entry on the System Options menu PG 55 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Digital I O Connector High Density 26 Female Signal sid 7 10 11 12 13 ISO IN 3 HI 14 15 Pin 5 3 L9 EE EX 130 d SERE L9 14 15 cw ras NET UN 19 20 Ea 16 17 18 19 20 21 22 23 26 12 VDC 5 VDC optional Notes 1 Limits are optically isolated solid state switches that can control AC or DC voltage Peak blocking voltage is 350V maximum continuous current is 120 mA 2 Digital inputs are opto isolated with internal current limiting resistors Voltage range is 4 to 22 VDC on the HI input with respect to the LO input Other voltage ranges are possible with added external resistors contact Interface for details If isolation is not required these inputs may be operated using the 12 VDC supplied on pin 26 and the GND on pin 24 3 The keylock input will be in the unlocked state if left unconnected Tie this pin to GND to lock it When locked the setup of the Model 9840 cannot be changed you cannot enter Setup mode 4 The encoder inputs are intended for use with a 12 VDC quadrature encoder For single ended signaling use the CHA and CHB pins the CHA L and CHB L pins are provided for differential signals The encoder can be supplied with the 12 VDC a
72. t the second line to be blank or to show the limit status The format is D2 B L D or T where B makes the line blank L makes the line show limit status D makes the line show another display and T makes the line show text Example 123D2B Acknowledge 123 Second Line set to Blank Display Second Line Text DT The Display Second Line Text DT command is used to select the text that would be displayed on the second line if text was set to go on the second line Example 123DTModel 9840 Acknowledge 123 Text Message Model 9840 Display Filter Window Commands DW The Display Filter Window DW command set enables and disables the filter window and allows the user to enter the unit and value of the filter window to use There are two commands used to enable and set the filter windows The format to enable or disable the Filter Window is DW1 channel 0 or 1 where channel is A or B 1 enables the window and 0 disables the window The format to set the window unit and value is DW2 channel window unit window value where window unit is the desired unit for the filtering window and window value is the desired value of the window The units available will depend on the sensor that is currently active for the channel It is a good idea to issue the 123 command and find out what the active sensor is on the channel with the 123SA or 123SB commands to make sure that the appropriate unit will be entered The window must be
73. ta Entry This menu is used to enter numerical constants used by the math options These constants are listed in a submenu that works exactly like the main setup mode menu Typical items in this submenu are Base Area Ch A B This is the area in square inches that is used to calculate load in pounds per square inch PSI or Mega Pascals MPa Base Length This is the length in inches that is used to calculate position in percent gt Analog Output This menu is used to set up the standard analog output Instead of a submenu there is a series of selections Pressing escape at any time will leave the analog output unchanged and return you to the setup mode main menu Note that when you change a cell type from load to torque or back again these settings must be reset for the new cell If the unit is a 2 channel unit and the Analog Output B option has been enabled the first option asks the user for the Analog Output channel Select A or B Then begin selecting the following settings MODEL 9840 PG 15 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 1 Source This entry allows you to scroll through a list using the left right or plus minus buttons to select the source of the data that will drive the analog output The standard list will include load or torque peak valley gross position and velocity Channel A B is an option which if chosen will appear only if the cells on both channels are of the same type Press enter to sel
74. which is used to turn the end of transmission character on or off Each of these options is described below Option View Command OV The Option View OV command returns a list of the current settings of all the system options The format is OV Example 1230V Acknowledge 123 Printer Baud Rate is 9600 Auto Identify is off Auto Zero Channel A is off Auto Zero Channel B is off Com Address is 123 Com Baud Rate is 9600 Com Line Feed is off Retain Tare is off Freeze Display is off RS232 End of Transmission Character is off Option Printer Baudrate Command OP The Option Printer baudrate OP command is used to select the printer baudrate The format is OP code where the code is from the table shown at the right MODEL 9840 PG 45 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Example Option Printer 1230P9 Command Acknowledge 123 Printer Baud Rate is 230 4K Option Auto Identify Command Ol 9600 19 2K 57 6K 230 4K The Option auto Identify Ol command is used to turn ms auto identification of load cells on or off The format is OI 0 or 1 where 0 turns auto id off and 1 turns auto ERE X idi 0123010 Acknowledge 8123 Auto Identify is off Option Auto Zeroing Command OZ The Option auto Zero OZ command is used to turn auto zeroing of load on or off The format is OZ channel 0 or 1 where channel is A or B and 0 amp 1 turn auto zeroing off and on respect
75. wledgement will indicate this fact 123 Setup is Locked use Keylock to unlock User Data Entry Command U This command is used to view or set the options in the user data entry menu namely the base area used to calculate load in PSI or MPa and base length used to calculate position in 96 This command has three subcommands User data View UV User data Area UA and User data Length UL User Data View Command UV The User data View UV command has the format UV Example 123UV Acknowledge 123 Base Area Ch is 1 00000 sq in Base Area Ch B is 0 50000 sq in Base Length is 3 0000 in User Data Area Command UA The User data Area UA command is used to set the base area The format is UA channel number Example 123UAA1 0025 Acknowledge 123 Base Area Ch A is 1 0025 sq in User Data Length Command UL The User data Length UL command is used to set the base length The format is UL number Example 123012 5 Acknowledge 0123 Base Length is 2 5000 in MODEL 9840 PG 32 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 Analog Output Command A This command is used to view or set the analog output of the Model 9840 There are two subcommands Analog View AV and Analog Set AS Analog Output View Command AV The Analog View AV command has the format AV It will return the current settings of the analog output Example Q123AV Acknowledge 0123 Analog Output A is Load A in
76. wn Load Push Button Tare 100 of range display and analog output Sensitivity Adjust 1mVNN to 4 5 mV V Accuracy 0 0196 of full scale 1 digital count CMRR 115 dB D A Analog Output Full Scale Output 10 VDC nominal 0 5 VDC Linearity 0 02 of full scale Frequency Response Approx 15 Hz plus filtering Output Source Any displayed quantity Output Channels 1 std 2 optional Direct Analog Output Full Scale Output 8 14 VDC 0 25 VDC Linearity 0 02 of full scale Fixed with no tare transducer channel only Frequency Response Approx 1 5 KHz Peak Hold Peak Valley Hold Digital 1 60 second capture MODEL 9840 PG 52 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 UU normally open closed enable disable Quad Limits Source Any displayed quantity Quantities Printed All displayed items Calibration User adjustable counts inch Auto Identification and Setup Yes standard Adjustments Displayed item displayed units tare peak valley reset alternate view print Alternate functions for programming MODEL 9840 PG 53 PUB 2856 16 INTERFACE MODEL 9840 VER 6 0 2 ENLLLL MEN Resolution 24 bit Software Filters 8 software selectable Power Requirements 110 VAC 60 Hz Optional 220VAC 50 Hz Power Consumption 12 W unloaded Transducer Excitation Current Shutdown mode when shorted to ground Absolute Max Transducer Input 30 VDC without damage

Epson 9840 User's Manual

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