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Omega Speaker Systems High Speed Load Cell Interface Card LCIC-WIM-BEN User's Manual

1. 1 YEAR CARE J WARRANTY Exte ie a ranty User s Guide Shop online at omega con Y OEOMEGA ome ga com e mail info omega com For latest product manuals omegamanual info LCIC WIM BEN High Speed Load Cell Interface Card omega com CEOMEGA OMEGAnet Online Service Internet e mail omega com info omega com U S A ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 Canada TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance U S A and Canada Sales Service 1 800 826 6342 1 800 TC OMEGA Mexico Czech Republic Germany Austria United Kingdom ISO 9001 Certified Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN En Espa ol 001 203 359 7803 FAX 001 203 359 7807 e mail espanol omega com info omega com mx Servicing Europe Frystatska 184 733 01 Karvin Czech Republic TEL 420 0 59 6311899 FAX 420 0 59 6311114 Toll Free 0800 1 66342 e mail info omegashop cz Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de One Omega Drive
2. Read our privacy policy Can Windows connect to Windows Update to search for software O Yes this time only Yes now and every time connect a device No not this time Click Nest to continue 4 Select the second option click Next and browse to the FTDI VCP Virtual COM Port Driver folder under the folder where you copied the installation files in step 1 Found New Hardware Wizard This wizard helps you install software for FT245R USB FIFO If your hardware came with an installation CD lt 6 or floppy disk insert it now What do you want the wizard to do Install the software automatically Recommended Install from a list or specific location Advanced Click Next to continue Found New Hardware Wizard Please choose your search and installation options Sate Y Search for the best driver in these locations Use the check boxes below to limit or expand the default search which includes local paths and removable media The best driver found will be installed C Search removable media floppy CD ROM Include this location in the search E LCIC WIM FTDI VCP Virtual COM Port Driver v Don t search will choose the driver to install Choose this option to select the device driver from a list Windows does not guarantee that the driver you choose will be the best match for your hardware Click Next 5 After a while you ll
3. 0 1 0 2 0 5 1 2 5 10 20 or 50 Full_Capacity Full capacity of the load cell Maximum_Load Maximum applied load on the load cell Load_Cell_Output Output of the load cell 0 Unknown 1 2 or3 1 2 or 3 mV V Filtering Filter1 Filter2 Decimator There are two filters The first filter is basically a 1st level moving average filter of size Filter1 2 256 Then depending on Decimator 1 1000 every Decimator th result from the 1st level filter is put through another moving average filter of size Filter2 2 256 which is the second filter Setting these three variables causes a board reset so it is a slow function Therefore in order to set all of them there is one more option the method Set_Filtering which works faster than three individual activations of the Set_Variable method 39 Variables Table cont d Category Variable Name Description Get Set Weight_Native Current weight after Filter2 y not rounded Current weight after Filter2 Analog Weight _Roundee rounded a resolution y Inputs A2D_F1 Current A D after Filter1 V A2D_F2 Current A D after Filter2 V Temperature The temperature measured on y the board C Output_1_Mode V V Output_2_Mode 0 Manual V V Output_3_Mode 1 General Setpoint V V Output_4_Mode V V Output_1_Status 0 off 1
4. Returns the number of the first port from COM1 to COM16 that responds as an LCIC WIM board If none is detected 0 is returned 37 4 3 2 Variables The system has variables with which the user may adjust the system to his needs and communicate with the I O Actually these variables consist of parameters inputs and outputs A variable may be read and sometimes also may be written The table below lists the variables describes them and specifies which of them may be also written The methods to read and write a variable are Read Get_Variable r lt Variable Name gt Returns a string with the value of the variable r lt Variable Name gt is the variable name as it appears in the table below prefixed by r for read e g rOutput_1_Mode Write Set_Variable w lt Variable Name gt Value w lt Variable Name gt is the variable name as it appears in the table below prefixed by w for write e g wOutput_1_Mode Value is a string with the value of the value to be written to the variable 38 Variables Table Category Variable Name Description Set Calibration Info Calibration Name Name of calibration Calibration_Date Calibration date MMDDYY Calibration_Time Calibration time HHMM e g 1545 Unit Weighing unit ton kg g lb or oz lt lt lt lt Resolution Weighing resolution 0 0001 0 0002 0 0005 0 001 0 002 0 005 0 01 0 02 0 05
5. Valid Limits Specifies the acceptable deviation for a valid result as a percent of the current setpoint a tip shows the value of that acceptable deviation in weight units For example if the current setpoint 100 kg and Valid Limits 1 then the result will be considered as valid when it is in the range 99 101 kg Otherwise error 101 or 102 will occur Specify Valid Limits 0 if you don t need the Valid Results Limits check 72 E 4 1 4 Stabilization Criterion Tare amp Stop At the beginning and at the end of a filling cycle the board waits for the scale to stabilize in order to read its weight Hence some stability criterion is required The board requires that all readings within Delta Time will be inside a range whose width is Delta Weight both at the beginning Tare and at the end Stop of the filling cycle The waiting for that stabilization is limited by Timeout causing an error situation in case of failure Delta Weight See the description above Delta Time See the description above Stabilization Timeout See the description above Impacts The system copes with impacts and automatically resumes the filling in case the current weight after stabilization is less than the current setpoint E 4 1 5 Lazy Filling Activate When checked the board will identify too slow filling thus reporting an error earlier than the Timeout ch
6. on V Digital Output_2_Status The Set is relevant only if V Outputs Output_3_Status the corresponding V Output_4_Status Output_x_Mode is Manual V i Status of all outputs at once HEHH opur Aa i Status of output x h 0 off 1 on e g 0101 Setpoint_1 The weight limit for output x V V Setpoint_2 Relevant only if the V V General Setpoint_3 corresponding Output_x_Mode V V Setpoints is Setpoint_4 General Setpoint V V Irrelevant in Fill mode 40 Variables Table cont d Category Variable Name Description Get Set E 0 Manual 1 Auto V V Voltage in the analog output in volts 0 2 5 Analog D o The Set is relevant only if V X Output Analog_Output_Mode is Manual The analog When Analog_Output_Mode output Auto voltage i Auto_Hi_Voltage The voltage to be supplied for V V vino f a weight Auto_Hi_Weight CONNG with in volts up to 2 5 respect to When a E in 13 which uto bounda Anto Lo Weight The weight for which OV shoula Y Y g be supplied When Analog_Output_Mode Auto Auto_Hi_Weight The weight for which maximal V V voltage Auto_Hi_Voltage should be supplied Input_1_Status V Input_2_Status 2 7 X Input_3_Status i V Input_4_Status V Digital Status of 7 n at once Inputs Input A status Status of input x y 0 off 1 on e g 0101 A 16 bit coun
7. The b r in the Communication box specifies the actual b r in which the Settings utility is communicating with the card If the Settings utility communicates with the card through a serial port the two b r values will indeed be the same However in case the Settings utility communicates with the card through a USB port the b r displayed in the Communication box will be usually 921 600 regardless of the serial b r Note Normally the b r in the board side will be the same as the b r in the PC side However it does happen that the communication is successful only when the PC sets the b r to some other value This anomaly might occur only with the serial communication not when using USB You may find out the required b r in the PC side by watching any of the supplied utilities Calibration Settings or Monitor upon the initialization they try to communicate with the board with various values of b r 22 3 3 1 3 Tools General Setpoints The LCIC WIM board has four digital outputs Each of them may be defined through the Tools General Setpoints either as a manual output or as a general setpoint output e A manual output is controlled by a user s command sent from the PC or another computer That is the user sends either by his own application or by a general RS232 terminal see section D 3 commands to turn an output on or off The user and not the card has the initiative to turn an output on or off e
8. sending the rest of the command 999 lt c r gt 2 Wait 1000 ms after sending the 999 lt c r gt command before analyzing the response s Read the RS485 address of the active board Board s response x lt c r gt where x is the address of the active board x 0 means that the board has been configured as a non RS485 device Other value between 1 amp 64 specifies the RS485 address of the active board Notes 1 Wait 1 second after sending the n command 2 If no board is active there will be no response 3 In case of malfunction more than one x lt c r gt will be responded in sequence This is theoretically impossible but should be checked in order to be on the safe side Nx lt c r gt Set the required RS485 address x is between 0 and 64 Board s response OK lt c r gt x 0 sets the board as a non RS485 device this will facilitate your coding as no x lt c r gt command will be needed Notes 1 The address setting takes effect only upon board reset 2 When the RS485 address is not 0 its value is shown for a while on the LED display upon board reset 31 z lower case z Manually zero the gross weight The effect of this function is temporary it expires upon card reset Response versions 1 12 3 09 6 01 7 00 and up Z lt c r gt Z Upper case Z versions 1 12 3 09 6 01 7 00 and up Cancel the manual z
9. 1 In order to switch the active board right click the mouse You ll get a list of all existing boards with the active one dimmed and checked You may select another board to be activated by clicking its address 66 Appendix E Fill Mode E 1 Introduction The LCIC WIM supplies a Fill Mode in which it may control a filling operation using the hardware inputs section E 2 and hardware outputs section E 3 The character of the filling operation is determined by parameters section E 4 set via the Settings utility section 3 3 The filling results are shown on the LED display section E 5 The Fill Mode supports also commands section E 6 sent through the communication line USB RS232 or RS485 These commands may draw the filling results as well as send operational instructions such as start a filling operation Both the display and the communication line may indicate an error code section E 7 During the filling cycles the board learns the system in order to improve the results of the following cycles by compensating system s unavoidable inaccuracy The first cycle is split into two parts start stop start stop enabling the board to learn the system thus apply already the above compensation trying to achieve a correct result even in the first cycle 67 E 2 Hardware Inputs Input 1 Input 2 Input 3 Input 4 OFF ON Turn ON Turn N A Manual output 1 on output 2 on ON When Terminate 1n e
10. A general setpoint output is controlled by the card according to user pre defined criterion Say initially the user defined the setpoint as 10 kg then the card automatically turns the output off on when the current weight is less more than 10 kg The user cannot explicitly turn an output on or off by a command Note these general setpoints are absolutely different from the setpoints in the Fill mode section E 4 The general setpoints are inactive in the Fill mode In order to configure an output e Select output s Mode as Manual or Setpoint e Incase you selected Mode Setpoint specify the setpoint value e g 10 e Click Save to Board to validate your new configuration e You may turn each manual output on or off 23 3 3 2 Parameters The following sections describe the various parameters After changing parameter s click the Save to Board button and wait a while until the new value s are accepted by the board 3 3 2 1 Communication The Communication box refers to card s communication port either serial or USB The current Port and Baud Rate are shown They are read only that is not changeable About changing the Baud Rate for a serial port refer to section 3 3 1 2 A third item Get results immediately is a parameter controlling card s response in communication during the Fill mode 3 3 2 1 1 Port Shows port s type and number e g USB port COM4 or SCI p
11. Card does not respond after PC power on Zero amp Tare The Zero function The Auto Tare function 1 Introduction 1 1 General Description The model LCIC WIM is a very High Speed Intelligent Load Cell Interface Card with USB RS232 RS485 Besides its basic mode named below as the general mode the board includes an integral Fill Mode supplying an independent filling control The board is intelligent and powerful enough for OEM customers it is ready to accept piggy back modules and or embedded applications for OEM special requirements 1 2 Typical Applications Dynamic weighing vehicles livestock Dynamic force measurement High speed checkweighing High speed filling batching e Beltweighing e Force measurement Press Machines e WIM Monitor for analysis of dynamic systems 2 Installing the board in the PC The following description refers to Windows XP Obviously on another operating system it might be different 1 Make sure that all installation files have been copied to your hard disk to a new folder say LCIC WIM 2 Connect the LCIC WIM board to your PC 3 The Found New Hardware Wizard appears Select the last option like this Found New Hardware Wizard Click Next Welcome to the Found New Hardware Wizard Windows will search for current and updated software by looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission
12. MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the product 1 Purchase Order number to cover the COST was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2008 OMEGA ENGINEERING INC All rights reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING I
13. both full duplex RS232 and half duplex RS485 interfaces These are brought out on CONN3 a 9 way D type connector The pin out is as follows CONN3 PIN FUNCTION 1 RS485 2 RS232 TX out 3 RS232 RX in 4 NC 5 SIGNAL GROUND 6 RS485 J NC 8 NC 9 NC i e for RS232 use pins 2 3 amp 5 and for RS485 use pins 1 5 amp 6 For RS232 connection a standard direct straight through wired 9D M F cable can be used for direct connection to a standard 9 way D type PC COM port RS485 line termination placing a jumper across the two rightmost pins of LK1 puts a 120 Ohm ac coupled impedance across the RS485 data lines This should be used in single LCIC RS485 applications In applications where multiple LCIC boards reside on one RS485 bus the termination impedance should only be added on the last board on the bus D 1 Communication Parameters For both the USB the full duplex RS232 and half duplex RS485 interfaces the communications parameters are fixed as follows Data 8 bits Parity None Stop Bits 1 _ This is generally referred to as 8 N 1 55 D 2 Baud Rate For the USB the maximal baud rate is 921 600 The board responds well without a need to pre define the used b r For serial communication the required b r should be pre defined by the user via the Settings utility section 3 3 The available baud rates are between 19 200 and 115 200 The current b
14. by pressing Next or redefine it by clicking again the Zero button or leave it out by clicking Skip Please note that even if you do confirm the new zero level by pressing Next its effect is limited to the pseudo calibration stage It will be stored in the board only if the new calibration is confirmed in step 5 Note In order to know the stability watch the Stability indicator above the A D reading e g 99 977829 in the screenshot below Stability 99 977829 100 Best Stability A D EEEE In the example below the user clicked Zero Zero Clickthe Zero button below when the scale is empty amp stable NewZeroA D 3150305 Now the user has three options 1 Confirm this zero level click Next 2 Redefine the zero level click Zero once more 3 Leave out this new zero level staying with the previous zero adjustment click Skip 14 Step 4 Pseudo Calibration Weight This step enables to redefine the weight level Click Skip if the previous weight level was OK Even if there was a fixed shift in the weight which you probably corrected in step 3 you don t have to redefine the weight level just click Skip Otherwise specify the value of the weight and when the weight is stable on the scale click Ready to sample another weight level Once you clicked Ready you may eithe
15. have this display Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for x USB Serial Converter Click Finish to close the wizard Click Finish Notes 1 It might occur that the wizard will return to step 3 requiring to repeat the process This is normal just repeat steps 3 5 2 You may watch the new driver in Add Remove programs F Add or Remove Programs 1 2 hil Currently installed programs C Show updates Sort by Name a Change or F n Remove fic FTDI USB Serial Converter Drivers Programs To change this program or remove it from your computer click Change Remove Change Remove 5 3 Utilities 3 1 Setup amp Running 1 Run the setup s of the LCIC WIM utilities in the folders LCIC WIM CALIBRATION LCIC WIM SETTINGS 2 Run a utility Tf the utility reports that Net Framework is not installed then run dotnetfxV1 1 4322 exe in the Microsoft Net Framework folder on your CD Tf the utility reports LCIC driver is not installed then refer to the previous section Installing the board in the PC 10 3 2 The Calibration Utility 3 2 1 General The calibration utility LCIC WIM CALIBRATION enables to calibrate the LCIC WIM board adjusting it to your own system The utility is straightforward and is in the form of a Windows wizard It includes three main stages carried out in five steps Th
16. is less than 32 the last character is followed by roa a binary zero byte 1053 Analog Output Max Voltage Float 1054 Analog Output Min Weight Float 1055 Analog Output Max Weight Float 1059 Analog Output Mode 0 Manual 1 Auto Float Card Serial Number 12 characters max 1066 1069 Organised 3 characters per location in case the Float length is less than 12 the last character is followed by a binary zero byte 36 4 3 LCIC WIM ActiveX Unless otherwise specified a function returns a Boolean True for success or False for failure 4 3 1 Start Stop Communication Is_ LCIC_WIM_Port CommPortNumber Returns 0 if the port does not respond 1 if the port responds but not as an LCIC WIM 2 if the port responds as an LCIC WIM CommPortNumber Integer Number of communication port OpenLCIC_WIM CommPortNumber Baud_Rate Opens the specified port CommPortNumber Integer Number of communication port Baud_Rate Integer Required Baud Rate 110 300 1200 2400 4800 9600 14400 19200 28800 38400 57600 115200 230400 460800 or 921600 Refer also to sections 3 3 1 2 amp D 2 Note Using USB all these values of Baud_Rate are relevant even though usually 921600 is used However upon using serial communication board s possible b r values are limited to the range 19200 115200 please refer to section 3 3 1 2 CloseLCIC_WIM Closes the open port Get_First_Free_LCIC_WIM_PortNumber
17. is on they switch the OUTPUT x x 1 2 3 or 4 to VO VOLTAGE OV Hence the load would normally be connected between OUTPUT x and the I O VOLTAGE Digital Inputs The digital inputs are designed to work with either npn or contact input devices They are activated by an external device pulling INPUT x x 1 2 3 or 4 down to I O VOLTAGE OV To work in this way an external IO VOLTAGE in the range 10 30V must be present Analog Output The analog output signal is set by a 16 bit DAC and appears on pin12 of CONN6 The output is with respect to the LCIC_WIM board ground not the I O OV The board ground appears at pinl3 of CONN6 The analog output control is application dependent 48 Connections The following table shows the I O pinout Pin Function 1 Output 1 2 Output 2 3 Output 3 4 Output 4 5 Input 1 6 Input 2 7 Input 3 8 Input 4 9 T O Voltage 0V 10 NC 11 NC 12 Analog Out Signal 13 Analog Out Gnd 14 NC 15 I O Voltage 10 to 30V 49 A 2 Connecting External Devices to the Inputs LCIC WIM CONNG PIN 15 E EXTERNAL IO VOLTAGE 1 to 4 38VDC 2K2 OPTO ISOLATION ONBOARD ONBOARD LCIC WIM x x il EXTERNAL DEVICE INPUT PIN EITHER NPN OR CONTACT X PIN 5 INPUT1 PIN INPUT2 COUNT PIN 7 INPUT3 PIN B INPUT4 N Z i e E PIN 9 EXTERNAL IO VOLTAGE BY DC C
18. s 3 There might be four cases with the conditions of 2 1 amp 2 2 1 Both conditions are true Both responses will be transmitted first x lt c r gt and then Ax lt c r gt Old address retired and address x became active 2 None of the conditions is true There will be no response No address was active before none is active now 3 Only 2 1 is true Ax lt c r gt will be transmitted No address is active as old address retired and the new one does not exist 4 Only 2 2 is true Ax lt c r gt will be transmitted Address x became active 4 Verify normal address switching by the n command In case of unexpected response to the n command repeat the x lt c r gt command In case 1 of note 3 which is the most frequent this verification is not needed simplifying the switching procedure 59 b Hello 999 lt c r gt The hello command is like a who is alive question This is useful in order to detect which addresses exist in the system Each existing board whether active or not responds x lt c r gt where x is its address Notes 1 Wait 10 ms after sending the colon before sending the rest of the command 999 lt c r gt 2 The x lt c r gt responses will be transmitted in sequence That is if all 64 addresses exist then first 1 lt c r gt will be transmitted then 2 lt c r gt and so on and
19. the fill mode or the WIM mode caused by dust temperature etc When this feature is activated and the card is inside the special mode the board automatically clears the gross weight if some pre defined condition is satisfied All readings within some continuous duration are inside the zero range Say all readings during 3 consecutive seconds are between 1g and 2g These continuous duration amp zero range are user defined by the following parameters The auto Zero effect is temporary it expires upon the exit from the special mode or card reset 3 3 2 2 1 Activate Activates the Auto Zero feature When Activate is deselected unchecked an Auto Zero operation will never take place 3 3 2 2 2 Max Zero The upper bound of the zero range 2g in the example Note Max Zero refers to the original zero level as was defined during the calibration procedure 3 3 2 2 3 Min Zero The lower bound of the zero range 1g in the example Note Min Zero refers to the original zero level as was defined during the calibration procedure 3 3 2 2 4 Time limit The size of the continuous duration 3s in the example 26 3 3 2 3 Start Fill mode 3 3 2 3 1 Fill mode starts automatically upon card reset When this option is activated checked the card starts automatically the Fill mode upon reset Otherwise the option is unchecked the cards awakes in the upper leve
20. 0 Legend Current gross weight 17 14 Last Tare 6 65 Next Correction Value 0 00 Mode Fill mode Activity Idle or Tare Fast Slow System staus 0 0 is normal otherwise it s an error code Get parameters list small p Turn off the Get results immediately feature Turn on the Get results immediately feature Get current mode upper case V Board s response Fill mode Note This command is useful in order to find out board s mode In the general mode the response to the V command is LCIC WIM V refer to section 4 1 1 as opposed to the Fill mode response in the fill mode 78 E 7 Error Codes 101 102 103 104 105 106 107 108 109 111 112 113 115 116 117 118 119 120 121 122 123 Actual Filling Weight lt Low Limit of Valid Result Limits Actual Filling Weight gt High Limit of Valid Result Limits SetPoint lt Low Limit of Valid Result Limits SetPoint gt High Limit of Valid Result Limits High Tare Limit lt Low Tare Limit Actual Tare lt Low Tare Limit Actual Tare gt High Tare Limit Valid High Limit lt Valid Low Limit Lazy Filling Filling Timeout Low Tare Limit gt High Tare Limit SetPoint lt Stabilization Delta Weight Tare Stabilization Timeout Initial weight is too large Slow amount is too large End Stabilization Timeout Stabilization Delta Weight lt Resolution Memory Failure User Emergency Stop Stabi
21. 3 Board 3 becomes active n 3 AJ Board 3 becomes inactive in favor of board 1 Al Board 1 becomes active n 1 63 So far everything was smooth however the quality of the communication depends besides the board and the PC also on the environment Hence there might be irregular situations that the user should know to handle this is what the following two examples 2 and 3 explain Example 2 No response from the new board n a 2 Board 1 becomes inactive in favor of board 2 But the A2 response telling that board 2 became active did not arrive Where is the disorder Maybe board 2 did receive the command and is indeed active just the A response was lost and everything is OK case 1 but maybe board 2 did not receive the command and no board is active case 2 In both cases sending the 2 command again will throw light on the situation In case 1 2 will be responded telling that board 2 was already active in case 2 A2 will be responded telling that board 2 became now active In both cases everything is ok and we may proceed However if there is no response at all on the 2 command repeat it say 3 or 4 times and if there is still no response then there is some severe problem requiring a human action maybe board reset Note that theoretically the n command could be used as well but practically it is recommended to avoid using the n comm
22. As you might guess N is Filterl N is Filter2 and N is Decimator The range of Filter amp Filter2 is selectable from 2 to 256 where 2 is the lowest filtering and 256 is the highest filtering The range of Decimator is from 1 to 1000 Note As described in section 4 1 4 2 amp 4 3 2 user s application may select the filtering level it requests either only Filter1 or Filter2 both Filterl amp Filter2 However the weight on board s numeric LED display is always after Filter2 3 3 2 5 Filling Definition The Filling Definition box includes the parameters used upon a filling operation in board s Fill Mode as described in section E 4 28 4 Programming your Application The control of the board is by commands and parameters described below You may either use them directly see also section D 3 or call an ActiveX see section 4 3 that does the work 4 1 Commands _ lt c r gt signifies a carriage return Note about High Speed Commands Single character commands where no lt c r gt is required are used for quick direct access control of the card Command Action Read parameter nn All values are returned in floating point scientific format Rnan lt c r gt preceded by nn lt c r gt echo and appended by a c r E g the answer to R23 lt c r gt is 23 lt c r gt 2 560000e 02 lt c r gt indicating that the value of Filter1 is 256 Wnnxc r gt argument lt c r gt up
23. Calibration Parameters This step starts the calibration procedure It enables to change calibration parameters Whether you changed the parameters or not you may proceed to the next step by pressing the Next button Library issues 1 Alternatively you may click Library in order to access the library as described in the Calibrations Library section If there are still no calibrations in the library the Library button will be inactive 2 Normally upon confirming a new calibration it will be saved also to the calibrations library However if you want to save it only in the board uncheck the Save to Library box In the example below the user changed the Display Resolution parameter Parameters Name IMS Load Cell Output 2 v m i Unit kg Full Load Cell s Capaciy 16 kg Maximum Applied Capacity 8 kg Display Resoluton om kg Notes 1 The changed parameter Display Resolution is displayed with blue background 2 The options list of the Display Resolution depends on the value of Maximum Applied Capacity 13 Step 3 Pseudo Calibration Zero This step enables to redefine the zero level Click Skip if you are satisfied with the previous definition of the zero level Otherwise when the scale is empty and stable see note click Zero to sample another zero level Once you clicked Zero you may either confirm the new zero level
24. NC Where Do Find Everything Need for Process Measurement and Control OMEGA Of Course Shop online at omega com TEMPERATURE A Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies lA Wire Thermocouple RTD amp Thermistor Calibrators amp Ice Point References lA Recorders Controllers amp Process Monitors LF Infrared Pyrometers PRESSURE STRAIN AND FORCE 4 Transducers amp Strain Gages 4 Load Cells amp Pressure Gages 4 Displacement Transducers LF Instrumentation amp Accessories FLOW LEVEL Lf Rotameters Gas Mass Flowmeters amp Flow Computers LF Air Velocity Indicators L7 Turbine Paddlewheel Systems lA Totalizers amp Batch Controllers pH CONDUCTIVITY LF pH Electrodes Testers amp Accessories 4 Benchtop Laboratory Meters 4 Controllers Calibrators Simulators amp Pumps IF Industrial pH amp Conductivity Equipment DATA ACQUISITION IA Data Acquisition amp Engineering Software 14 Communications Based Acquisition Systems 4 Plug in Cards for Apple IBM amp Compatibles 4 Datalogging Systems lA Recorders Printers amp Plotters HEATERS 4 Heating Cable IF Cartridge amp Strip Heaters 14 Immersion amp Band Heaters LY Flexible Heaters 4 Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL Lf Metering amp Control Instrumentation 4 Refractometers 4 Pumps amp Tubing lA Air Soil amp Water Monitors L Industrial Water amp Wastewate
25. ONNEC LANG BA NAI sv LECBS dO LCIC WIM INPUTS ONLY 1 SHOWN 50 IM Anal ASLCI Note Ve show here a connection of simple leds to the outputs but of course the leds and resistors can be replaced with relay solenoids etc VExt 10 dc to 30 dc Max current 300e2A 600A option RN1 RESISTOR DIP 4 0 2 5 4 094 51 A 4 The LED Display Upon board restart the two following messages are shown on the LED display each for a while LCIC x xx x xx is board s DSP version Sb yyy yyy is current board s Serial baud rate refer to sections 3 3 1 2 amp D 2 Then the display shows the current data Notes 1 The weight on the LED display is always after Filter2 refer to section 3 3 2 4 2 In Fill mode the LED display shows additional information refer to section E 5 3 During the Fast Mode section 4 3 4 the LED display is not updated 52 Appendix B Scaling the Load Cell Input The full scale of the input coming from the load cell may be adjusted by the LK4 jumper which is next to load cell connector e Across the two leftmost pins default Load cell output is 1 2mV V e Across the two rightmost pins Load cell output is 3mV V 53 L ndix A LOAD CELL CELL CONNECTOR OB9 MALE CONNECTOR DBO MALE 4 WIRES CONNECTION CONNECTIONS 54 Appendix D USB RS232 amp RS485 In addition to USB The LCIC has an option for
26. River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk It is the policy of OMEGA Engineering Inc to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification The information contained in this document is believed to be correct but OMEGA accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for human applications Table of Contents 1 Introduction 1 1 General Description 1 2 Typical Applications 2 Installing the board in the PC 3 Utilities 3 1 Setup amp Running 3 2 The Calibration Utility 3 2 1 General 3 2 2 The Calibrations Library 3 2 3 Parameters 3 2 4 Calibration Efficiency CE 3 3 The Settings Utility 3 3 1 The Menu Bar 3 3 1 1 Tools Analog Output 3 3 1 2 Tools Baud Rate for SCI port 3 3 1 3 Tools General Setpoints 3 3 2 Parameters 3 3 2 1 Communication 3 3 2 1 1 Port 3 3 2 1 2 Baud Rate 3 3 2 1 3 RS485 Address 3 3 2 1 4 Get results immediately 3 3 2 2 Auto Zero 3 3 2 2 1 Activate 3 3 2 2 2 Max Zero 3 3 2 2 3 Min Zero 3 3 2 2 4 Tim
27. and where possible for some reasons 1 The n command is time consuming it requires waiting 1 second in order to let all potential boards respond This is unavoidable as by definition the mechanism of the n command takes into consideration also a faulty situation in which two or even more boards are active at the same time This mechanism ensures that the responses will arrive in sequence and not simultaneously therefore it consumes so much time 2 The conclusion derived according to the response on the n command is not always clear That might require sending the n command again requiring another 1 second 3 The n command is only informative it does not fix anything If it s possible as in our case to both fix a problem and get information at the same time then it is preferable 64 Example 3 No response from the old board n 1 2 A2 Board 2 becomes active But the 2 response telling that board 1 became inactive did not arrive Where is the disorder Maybe board 1 did receive the command and is indeed inactive just the 42 response was lost and everything is OK case 1 but maybe board 1 did not receive the command and both boards are active case 2 This is a dangerous situation and definitely should be avoided This problem is more complicated than the previous one in example 2 sometimes re sending the 2 command won t help I
28. ands1 Start_Fast_Mode Filter 4 In the event DataArrivalInFastMode Get current block fmCounter fmCounter 1 Fast_mode_Data fmCounter LCICwim_commands1 Get_CurrentBlock So all arrived data are stored in the array Fast_mode_Data 5 To terminate the Fast Mode Call LCICwim_commands1 Stop_Fast_Mode Except the last one each block will still cause a DataArrivalInFastMode event as described in para 3 In the DataArrivalLastInFastMode event that the last block will cause fmCounter fmCounter 1 Fast_mode_Data fmCounter LCICwim_commands1 Get_LastBlock TotalTimeInFastMode LCICwim_commands1 Get_Time_ms 46 Interpreting the data in a block Each block includes integer weight values separated by a c r In order to get the real weight values the integer values should be multiplied by the current Resolution Factor for details refer to the end of stage 3 above You may get the current Resolution Factor using the method LCICwim_commands1 Get_Resolution_Factor 4 3 5 Misc Apply_Temporary_Zero Manually zero the gross weight The effect of this function is temporary it expires upon card reset Reset_Board Resets the board Usually this function is not required 47 Appendix A I O amp the LED Display A 1 General Notes about the I O The digital I O is available on CONNG 15 pin Dsub Digital Outputs The outputs are opto isolated 300mA 50V solid state relays When activated status LED
29. e Gets the analog output voltage in Volts vx lt c r gt lower case v Sets the analog output voltage to x Volts The analog output voltage is measured at pin 12 of CONN6 with respect to pin 13 which is ground Turn on Output1 if Manual Turn off Output if Manual Turn on Output2 if Manual Turn off Output2 if Manual Turn on Output3 if Manual Turn off Output3 if Manual Turn on Output4 if Manual VIaAlOlo Wlo mH O upper case o l upper case i Turn off Output4 if Manual Card returns a string of the form xxxx lt c r gt where x is either 1 or O representing the status of the 4 output opto relays OUT4 O0UT3 OUT2 OUT1 respectively Card returns a string of the form xxxx lt c r gt where x is either 1 or O representing the digital input status of IN4 IN3 IN2 IN1 respectively Gets a 16 bit toggling counter The toggling counter increments each time when input 2 is toggled 30 x lt c r gt Activate the board addressed x x is between 1 and 64 Notes 1 Wait 10 ms after sending the colon before sending the rest of the command x lt c r gt 2 Wait 30 ms after sending the x lt c r gt command before analyzing the response s 999 lt c r gt Hello command prompt all existing boards to respond Notes 1 Wait 10 ms after sending the colon before
30. e board is available either F 7_ Dimensions mm e Standard OEM model 160 x 100pcb Eurocard e ABS cased option F 8 Misc e Powerful 32 bit 135 MIPS DSP for high speed onboard processing e 8 digit LED display e On board temperature sensor e Card includes an integral Fill Mode supplying an independent filling control 80 Appendix G Trouble shooting G 1 Card does not respond after PC power on Q Everything was OK but after PC restart the card suddenly stopped responding A As specified in section D 4 after PC power on or off the serial communication RS232 RS485 is likely to drop A card reset is needed in this case 81 Appendix H Zero amp Tare There are two functions which are similar yet actually different Zero amp Tare e The Zero function supplies both manual and automatic ways to clear the gross weight e The Auto Tare function supplies a way to define the meaning of the setpoint parameter H 1 The Zero function This function supplies both manual and automatic ways to clear the gross weight Manual Zero The manual zero is available only in the general mode not in the fill mode Its effect is temporary it expires upon card reset The manual zero is accessible via two ways Hardware input Turn on digital input 3 for two seconds Communication When accessing the communication directly Send the z command section 4 1 1 When using the LCIC WIM Activex Call the Ap
31. e calibration procedure Parameter 5 Resolution Select the Resolution value of the displayed weight in the selected unit 1g 0 05kg etc that fits your application 18 3 2 4 Calibration Efficiency CE The potential range of A D points is between 0 and near 8 400 000 The Calibration Efficiency specifies what portion of this potential range is in use The closer it is to 100 the better accuracy stability you have However in practice 100 is a theoretical number and almost not reachable The accuracy and stability will still be excellent even if Calibration Efficiency is far lower than 100 19 Th in ili The LCIC WIM SETTINGS utility gives control to card s filters analog output fill mode parameters and more The utility has three items e The Menu Bar e Current Weight Display e Parameters The Current Weight Display is rather obvious it continuously shows the actual weight The other two items are detailed below 3 3 1 The Menu Bar The Menu Bar supplies some functions e Exit An alternative way to quit the utility e Tools Analog Output Described below section 3 3 1 1 e Tools Baud Rate for SCI port Described below section 3 3 1 2 e Tools General Setpoints Described below section 3 3 1 3 20 Sst Tools Analoz Output The Settings utility gives access to the analog output mechanism Click Tools Analog Output For manual mode unchec
32. e limit 3 3 2 3 Start Fill mode 3 3 2 3 1 Fill mode starts automatically upon card reset 3 3 2 4 Filtering 3 3 2 5 Filling Definition 4 Programming your Application 4 1 Commands 4 2 Parameters 4 3 LCIC WIM ActiveX 4 3 1 Start Stop Communication 4 3 2 Variables 4 3 3 Filters 4 3 4 Fast Mode 4 3 5 Misc Appendices A TO amp the LED Display A 1 General Notes about the I O A 2 Connecting External Devices to the Inputs A 3 LCIC WIM I O amp Analog Out A 4 The LED Display B Scaling the Load Cell Input C Load Cell Connections D USB RS232 amp RS485 D 1 Communication Parameters D 2 Baud Rate D 3 General RS232 Terminal D 4 Serial Communication amp PC Power On Off D 5 RS485 E Fill Mode E 1 Introduction E 2 Hardware Inputs E 3 Hardware Outputs E 4 Filling Parameters E 4 1 Filling By Weight E 4 1 1 Filling by Weight Parameters E 4 1 2 Auto Tare E 4 1 3 Valid Results Limits E 4 1 4 Stabilization Criterion Tare amp Stop E 4 1 5 Lazy Filling E 4 2 Filling By Time E 4 2 1 Filling by Time Parameters E 4 2 2 Stabilization Criterion Stop E 4 3 Fast Speed Config E 4 4 The Filling Configurations Library E 5 LED Display Notations E 6 Commands E 7 Error Codes F Specifications F 1 Load Cell Input F 2 A D F 3 Digital Inputs F 4 Digital amp Analog Outputs F 5 Standard Interfaces F 6 Software F 7 F 8 G 1 H 1 H 2 Dimensions mm Misc Trouble shooting
33. e three stages are 1 Show Data step 1 Described below under Step 1 2 Pseudo Calibration steps 2 3 4 The calibration is called pseudo as it won t be saved in the board unless the user confirms it in the next stage As long as the user did not confirm the new pseudo calibration the previous calibration remains in effect The details are described below under Step 2 3 4 3 Save or Quit step 5 Described below under Step 5 11 The five calibration steps are Step 1 Show Data This step introduces both the parameters and the current readings as received from the board The step is passive in the sense that it only shows data passed by the board but it does not make any change in the board Some additional parameters may be displayed in the bottom of the Current Board Calibration box Type lt Ctrl gt lt I gt and as shown in the screenshot below the additional parameters will appear hiding the lower original parameters Load Cell Output Full Load Cell s Capacity Maximum Applied Capacity and Display Resolution In order to hide the additional parameters and return to all the original ones type lt Ctrl gt lt I gt again Current Board Calibration Calibraton Name IMS Calibration Date October 25 2006 Calibration Time 14 21 Calibration Counter 2 ZeroA D 1630491 ee 424 Additional Parameters Calibration Efficiency 20 22 12 Step 2 Pseudo
34. eck would do 13 E 4 2 Filling By Time E 4 2 1 Filling by Time Parameters Setpoint x The required total filling time when the user selects setpoint x x 1 2 or 3 Slow Amount The required slow filling time in of the current Setpoint a tip shows the value of Slow Amount in ms Specify 0 when only one speed is required E 4 2 2 Stabilization Criterion Stop At the end of a filling cycle the board waits for the scale to stabilize before proceeding to the next cycle The size of this waiting delay is specified by the Delta Time parameter Delta Time See the description above E 4 3 Fast Speed Config Option1 Fast Speed Output 1 Slow Speed Output 2 Option2 Fast Speed Output 1 Output 2 Slow Speed Output 2 74 E 4 4 The Filling Configurations Library There is a Filling Configurations Library in which you may save sets of filling configuration parameters This is useful in case you have more than one type of filling letting you switch easily and reliably from one configuration to another Note This library has nothing to do with the calibration library mentioned in section 3 2 2 Refer to the Library box Save If you like your configuration to be saved in the library specify a Library Name and check the option box It is recommended to specify a meaningful Library Name so that later you Il recognize the various files you created in the library Y
35. efects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESS OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product s in such a manner RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER
36. ero operation the lower case z That is return to the original calibration zero Response Z lt c r gt S upper case S System reset software reset to perform a restart as if turned off on Response versions 1 12 3 09 6 01 7 00 and up S lt c r gt possibly followed by additional binary character s Wait 6 seconds before accessing the board again Issue this command after changing any of the following parameters Auto transmit interval parameter 20 Filters amp Decimators parameters 23 25 General Setpoints parameters 101 104 Output modes parameters 111 114 F upper case F Start Fill mode V upper case V Get version no of DSP software Board s response LCIC WIM V where Version Number 32 Summary of Weight amp A D Reading Commands Reading Type Filtering Level Weight A D Sa Not Filter1 Filter2 Resolution Rounded V V Single v v Reading gt v v lt V V Fast u v y Mode U v v 33 4 2 Parameters Parameter number Parameter Description Data Type Load Cell mV V 1 2 or 3 0 unknown Float Units 0 g 1 kg 2 ton 3 0z 4 lb Float Full Load Cell s Capacity Float Maximum Applied Capacity Float O11 amp Oo Po Resolution Index 0 17 Resolution Index is actually the index to an array of 18 defi
37. finally 64 lt c r gt 3 The hello command does not change the active mode of the address it will remain the same as before 4 After sending the hello command wait 1 second to give chance to all 64 potential addresses to respond 60 c Read the RS485 address of the active board n Board s response x lt c r gt where x is the address of the active board x 0 means that the board has been configured as a non RS485 device Other value between 1 amp 64 specifies the RS485 address of the active board Notes 1 After sending the n command wait 1 second to give chance to all 64 potential addresses to respond 2 If no board is active there will be no response 3 In case of malfunction more than one x lt c r gt will be responded in sequence This is theoretically impossible but should be checked in order to be on the safe side In this case re activate the required address by the activate address command paragraph a d Set the specified RS485 address Nx lt c r gt This command sets the board s RS485 address x is between 0 and 64 x 0 sets the board as a non RS485 device this will facilitate your coding as no x lt c r gt command will be needed Note When the RS485 address is not 0 its value is shown for a while on the LED display upon board reset Board s response OK lt c r gt Normally a user application will never use this co
38. hod Get_Time_ms in order to get the time stamp Stage 3 After the last block was received and stored the weights may be processed 1 Recalling that the values are separated by Carriage Return parse the string array and keep the individual values in a numeric array One clean way to do that is write the array to file by Print and read back the file using Input Note that a value may be split between two blocks e g the value 123 may appear as 12 in the end of one block and 3 in the beginning of the next block The above way using a file handles the parsing well 2 As described in the beginning of this section the values are integers that were accepted by multiplying the actual weight by 1 10 100 1000 or 10000 You may find the actual weight by multiplying the integer weight by a Resolution_Factor which is 1 0 1 0 01 0 001 or 0 0001 respectively You may find the Resolution_Factor yourself but for your convenience there is the method Get_Resolution_Factor which returns the proper value 45 How to work with the Fast Mode in VB using the ActiveX During the Fast Mode process the board transmits mass data to the PC Therefore in order to avoid data loss all the actions on your PC should be minimized 1 Define string Array Dim Fast_mode_Data 1 to SizeOfArray as String Dim fmCounter as long Current counter index 2 Select Filter Filter Filter2 3 To start the Fast Mode Call LCICwim_comm
39. ing the Delete button CALIBRATION LIBRARY Library Parameters Library Files Name IMS Load Cell Output 2 Unit kg Full Load Cell s Capacity Maximum Applied Capacity 8 Display Resolution 0 001 1630491 CS Delete Save to Board and Exit 253 17 3 2 3 Parameters This section describes the parameters to be filled during the calibration procedure Parameter 1 Load Cell mV V The mV V output of your load cell 1 2 or 3 mV V In case the actual output is none of these values choosing a value higher than the actual will result in loss of resolution choosing a lower value may result in loss of range that is maximum smaller than the real one Refer also to Appendix B Parameter 2 Unit The desired weight unit g kg ton oz or Ib Parameter 3 Load Cells Capacity The maximum capacity of all the load cells in the scale system according to manufacturer s specifications If the scale system has more than one load cell e g four load cells of 10 kg then type in 40 Parameter 4 Maximum Load Fill in the actual full scale i e the maximum load you plan to put on the scale Note Keep the following condition true Maximum load Dead load lt Load Cells Capacity The known rated mV V value of the load cell the Maximum load and the Load Cells Capacity in whatever measuring units are required in order to calculate the optimal gain and zero thus drastically accelerating th
40. k the Activate Auto Mode box For auto mode check the Activate Auto Mode box Manual Mode On the top of the display specify a desired voltage in the Manual Mode square and click Send Auto Mode Specify the following parameters 1 Voltage Max 2 Weight Max 3 Weight Min 4 Update Frequency The Auto Mode works like this When the current weight Weight Min or less the analog output is set to 0 When the current weight Weight Max or more the analog output is set to Voltage Max When the current weight is between Weight Min and Weight Max the analog output is set between 0 and Voltage Max in the same ratio The rate of updating the analog output is depends on the Update Frequency parameter For example when Update Frequency is 4 the analog output is updated 4 times a second 21 3 3 1 2 Tools Baud Rate for SCI port Click Tools Baud Rate for SCI port to see the current baud rate for the RS232 RS485 serial port It may be changed to some values between 19 200 and 115 200 The baud rate for the USB need not be defined usually it is 921 600 The change will take effect only after card reset The current b r used by the board for the serial communication is shown for a while on the LED display upon card reset prefixed by Sb Serial baud rate Do not mix the serial b r with the b r shown in the Communication box they are not necessarily the same
41. l referred to in this document as the general mode Notes 1 In order to switch the card from Fill mode to General mode use the x command small x 2 In order to switch the card from General mode to Fill mode use the F command 3 About the x F and other commands in Fill mode refer to section E 6 27 3 3 2 4 Filtering Board s digital filtering is used to smooth the read samplings by averaging a pre set number of the internal readings It s especially essential on a noisy environment as this mechanism reduces system s susceptibility to short interferences The noise may be either mechanical e g load cell vibrations or electrical The digital filter averages the raw internal readings of the A D whose rate is 52 734 A D readings per second The behavior of the filtering mechanism is controlled by three parameters e Filteri e Filter2 e Decimator These three parameters described below are adjustable in order to make them suit best your application The filtering mechanism includes two levels Level 1 Each N successive A D readings are averaged forming the first level average Level 2 Each N first level averages are re averaged forming the second level average Unlike the N readings of level 1 the N readings of level 2 are not successive Only each N th first level average participates in the second level averaging procedure the other N 1 ones being ignored
42. lization Delta Time gt Stabilization Timeout Filling Timeout gt Stabilization Timeout 79 Appendix F Specifications F 1 Load Cell Input e 5 Volt excitation for upto 10 load cells 350 Ohm e Compatible with 1 2 amp 3 mV V load cells e Low noise wide bandwidth amplifier amp 24 bit ADC F 2 A D e Very high speed A D upto 52 000 samples per second e 24 Bit A D with 8 million counts for tension and compression applications F 3 Digital Inputs e 4 opto isolated inputs with 10 30 VDC range each with status LED e Input 2 configurable as high speed counter F 4 Digital amp Analog Outputs e 4 opto isolated solid state relays rated at 50V 300mA each with status LED Configurable as setpoints or manual outputs e Analog output of 0 to 2 5V with 16 bit resolution F 5 Standard Interfaces e USB 2 0 Full Speed compatible e Combined RS232 RS485 e Multiple boards may be connected via USB or RS232 RS485 e Ideal for PLC based applications F 6 Software e LCIC WIM Calibration Wizard software is included e Included is the LCIC WIM Monitor utility which is a vital tool for analyzing dynamic load force systems It takes full advantage of the board s speed e Also included the LCIC WIM SETTINGS utility which gives control to card s filters analog output filling parameters and other settings e An ActiveX interface is supplied for easier programming of user s application however direct conversation with th
43. mmand as the address setting is carried out using the LCIC WIM SETTINGS utility 61 RS485 Responses Most responses are already described in the Commands section Ix lt c r gt Address x is already active See Commands a 1 Ax lt c r gt Becoming inactive on behalf of address x See Commands a 2 1 Ax lt c r gt Address x becomes active See Commands a 2 2 x lt c r gt Address x is alive See Commands b x lt c r gt A x lt c r gt command was received but x is illegal That is x is neither in the range 1 64 nor 999 x lt c r gt Address x is active See Commands c 62 Examples Suppose there are 3 boards in the system addressed 1 2 amp 3 The blue text is the PC side the red text is the response from the board s and the black text is our comments Example 1 Everything goes fine 999 7 T3 n no response as no board is active 1 Al Board 1 becomes active n 1 2 2 Responded by board 1 Means I board 1 am becoming inactive in favor of board 2 even though it s unknown for me whether board 2 exists or not A2 Responded by board 2 Means I board 2 am becoming active assuming that no other board is active Note Comments analogue to the above two ones about 2 and A2 are relevant also for the other x and Ax commands however for the sake of readability the following comments are shorter n 2 N3 Board 2 becomes inactive in favor of board 3 A
44. n case 2 re sending the 2 command should be responded by 2 which indicates that everything is OK 2 will be responded as well but this does not add us any new information However if the 2 response does not arrive we have to use the n command in order to make sure that we are not in the situation of two boards active at the same time which should be avoided Therefore we should send the n command and expect to get only 2 and not 1 Although it s time consuming we have to repeat the n command at least once in order to have no doubt that board 1 is really inactive 65 Board selection by the supplied utilities The three supplied utilities LCIC WIM CALIBRATION LCIC WIM SETTINGS amp LCIC WIM MONITOR enable easy selection of the required board e Upon program start all detected addresses are reported Verify that the total number of boards detected reported at the bottom of the display corresponds the real number It might occur that the automatic detection fails to detect a board If you know that some board does exist although it was not detected click its address manually Finally select the board that will be activated first by right clicking its address or leave the default selection and click Continue or just wait e When you are accessing some board usually you may switch to another one In the LCIC WIM CALIBRATION this option is available only in step
45. n setting So although the readings are integers due to that multiplication the original precision is maintained The readings are not rounded to the resolution For example if the resolution is 0 05 then the readings transmitted by the board will be multiplied by 100 so that 123 will represent 1 23 Start_Fast_Mode Filtering_Level Starts the Fast Mode Note During the Fast Mode the LED Display is not updated Filtering_Level Integer 1 Supply readings after Filter1 2 Supply readings after Filter2 Stop_Fast_Mode Stops the Fast Mode A timer stamp is appended Its value is the time elapsed from start of transmission until end of transmission in ms 44 The mechanism to receive the data uses events and methods as described below The transmission sends blocks of information Stage 1 Except the last one each block generates the event DataArrivalInFastMode When the event occurs run the method Get_CurrentBlock to read the current block The block consists of integer weights separated by a Carriage Return At this stage just store the blocks into a string array This stage repeats until the last block arrives That is if there are 10 blocks then stage 1 occurs 9 times Stage 2 The last block generates the event DataArrivalLastInFastMode Run the method Get_LastBlock in order to read the last portion of the integer weights and store them too in the string array used in stage 1 Run the met
46. ned values 0 17 like that 0 0001 0 0002 0 0005 0 001 0 002 0 005 0 01 0 02 0 05 0 1 0 2 0 5 1 2 5 10 20 50 E g if Resolution Index 8 then system resolution 0 05 Float Calibration Date formatted as MMDDYY So 10107 lt Calibration Date lt 123199 Float 11 Calibration Time formatted as HHMM So 0 lt Calibration Time lt 2359 Float 20 Auto transmit interval 3 52734 integer How many internal adc updates 52734 Hz there are between auto transmissions This gives a theoretical reading rate from 17578 per sec to 1 per sec i e rate 52734 P20 Practically the actual rate for low values of P20 is usually less than the theoretical rate P20 stands for Parameter 20 Note that this rate relates to USB communication upon using a serial port the rate is far smaller Becomes effective only after a system reset either power off on or using the S command Float 34 23 Filter1 value 2 256 Becomes effective only after a system reset either power off on or using the S command Float 24 Filter2 value 2 256 Becomes effective only after a system reset either power off on or using the S command Float 25 Decimator 1 1000 Becomes effective only after a system reset either power off on or using the S command Float 101 General Setpoint1 Becomes effective only after a
47. o Tare The displayed weight is net Tn all other cases that is not during a Filling Cycle or even during a Filling Cycle but the user did NOT select Auto Tare The displayed weight is gross 76 E 6 Commands Enter amp Exit Fill Mode F X Enter Fill Mode from General Mode Exit Fill Mode to General Mode small x Inside the Fill Mode 8 Start filling g stands for go like input 2 does Terminate an error status like input 3 does Emergency stop like input 4 does Get filling s report Response Example 1 A 40 99 Tr 6 65 Cv 0 00 Ft 7527ms St 2554ms Cc 0 Legend Filling 1 Actual final weight 40 99 Tare 6 65 Correction Value 0 00 Fast time 7527 ms Slow time 2554 ms Completion Code 0 0 is normal otherwise it s an error code Notes 1 The actual final weight 40 99 in the example is net weight if Auto Tare is selected gross weight if Auto Tare is not selected 2 The reports are accumulated in a FIFO whose size is 30 fillings That is only up to last 30 reports are available Note The FIFO size 30 is subject to change in the various versions 3 Please refer also to section 3 3 2 1 4 Get fillings summary Number of normal fillings Number of each error type cases for each error type that occurred at least once 77 Get current status small s Response Example Current_Status W 17 14 Tr 6 65 Cv 0 00 M F A I S
48. ort COM1 SCI stands for Serial Communications Interface that is RS232 or RS485 3 3 2 1 2 Baud Rate Specifies the actual Baud Rate in which the Settings utility is communicating with the card Refer also to section 3 3 1 2 3 3 2 1 3 RS485 Address Up to 64 LCIC WIM boards may reside on one RS485 bus consuming only one PC port In case you do not need this feature specify RS485 Address 0 this will simplify the coding of your application If you do like to utilize this feature specify the required RS485 Address between 1 to 64 gt The address setting takes effect only upon board reset 24 3 3 2 1 4 Get results immediately Controls card s response in communication during a special mode such as the Fill mode When checked the card assumes that the PC or another remote computer is continuously connected and listening to the communication port Therefore the card takes the initiative and sends messages to the PC reporting the process results immediately when they are available However you might prefer the PC to poll the card from time to time drawing the results so that the PC can handle other tasks too In the latter case uncheck the Get results immediately option For example in the Fill mode use the r command as described in section E 6 25 3 3 2 2 Auto Zero The Auto Zero optional feature supplies an automatic correction to creeps in the zero level during a special mode such as
49. our filling configuration will be saved in the library only upon clicking the Save to Board button In case a library file having the name you specified already exists you ll have to select either to overwrite it or to use another name Recall or Delete a File in the Library Click the Select button in order to select a file to be recalled or deleted You may watch the various files and their contents In order to delete a file click the Delete button The procedure to recall a file has two or three steps 1 Click the Confirm button This will insert file s parameters to the Filling Definition box 2 Optionally you may modify some of the parameters thus using the library file as a draft to make your changes easier In case you want the new values to be saved in a file either the original one or another make sure to check the option in the Library box 3 Click the Save to Board button 75 E 5 LED Display Notations In Fill mode the LED display shows the current sub mode m Fill Manual Fill mode input 1 is off AutoFill Auto Fill mode input 1 is on Likewise the value shown on the LED display is prefixed by one or two letters C Current weight F Weight during a filling cycle A Actual weight the resulting final filling weight SP SetPoint The scale of the displayed weight The displayed weight is sometimes gross and sometimes net During a Filling Cycle and the user selected Aut
50. per case W u lower case u Write the value argument to parameter nn Floating point values can either be normal or scientific representation For example 0 003 could be sent as it is or as 3 0E 03 After the Wnn lt c r gt the board echoes nn lt c r gt and after the argument lt c r gt the board responds argument lt c r gt OK lt c r gt For example PC sends W23 lt c r gt the board answers 23 lt c r gt the PC then sends 123 lt c r gt and the board answers 123 lt c r gt OK lt c r gt changing Filter1 to 123 Start a Fast Mode session using Filter1 no LED update Terminated by the x command A timer stamp is appended Its value is the time elapsed from start of transmission until end of transmission in ms U upper case U Start a Fast Mode session using Filter2 no LED update Terminated by the x command A timer stamp is appended Its value is the time elapsed from start of transmission until end of transmission in ms Xx lower case x Exit Fast Mode and return to general mode In order to exit the fast mode the x command should be synchronised that is issued upon receiving a block Get weight after Filter2 not rounded to resolution Get weight after Filter2 rounded to resolution Get A D reading after Filter Get A D reading after Filter2 Sl A Vi Get temperatur
51. ply_Temporary_Zero function section 4 3 5 Auto Zero The auto zero is available only in the fill mode not in the general mode Its effect is temporary it expires upon card reset or upon exiting the fill mode The auto zero operation occurs when some user s pre defined condition is satisfied For more details refer to section 3 3 2 2 82 H 2 The Auto 7are function This function supplies a way to define the meaning of the setpoint parameter When the AutoTare option is not activated the setpoint defines the requested final gross weight That is if the setpoint is 100 kg and the starting gross weight is 90 kg the filling amount will be 10 kg When the AutoTare option is activated the setpoint defines the requested filling amount That is if the setpoint is 100 kg the filling amount will also be 100 kg regardless of the starting gross weight However the filling operation will take place only if the starting gross weight is within a user pre defined range otherwise the filling operation will be rejected and an error will be indicated The activation of the Auto Tare option as well as its parameters are described in section E 4 1 2 83 WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA s WARRANTY adds an additional one 1 month grace period to the normal one 1 year produc
52. r Treatment 4 pH Conductivity amp Dissolved Oxygen Instruments M4693 0908
53. r confirm the new weight level by pressing Next or redefine it by clicking again the Ready button or leave it out by clicking Skip Please note that even if you do confirm the new weight level by pressing Next its effect is limited to the pseudo calibration stage It will be stored in the board only if the new calibration is confirmed in step 5 In the example below the user specified the value of the weight 6 kg and clicked Ready Weight Puta known weighton the scale specify its value make surethe 8 kg scale is stable and click the Ready button below Now the user has three options 1 Confirm this weight level click Next 2 Redefine the weight level click Ready once more 3 Leave out this new weight level staying with the previous weight adjustment click Skip 15 Step 5 Save or Quit This is the final step here you decide whether to confirm the pseudo calibration or leave it out Before you decide you may watch the current readings examining whether they are satisfactory In case you do want to confirm the new pseudo calibration overwriting the previous calibration press the Save to Board button and answer Yes to the following question that pops up Attention Please note IF you save the new calibration the previous calibration will be overwritten hence will no longer exist Are you s
54. r used by the board for the serial communication is shown for a while on the LED display upon card reset prefixed by Sb Serial baud rate Refer also to sections 3 3 1 2 amp 3 3 2 1 2 D 3 General RS232 Terminal You may talk with the card either by your own application or by a general RS232 terminal One simple one called Termite is available for free at http www compuphase com software_termite htm D 4 Serial Communication amp PC Power On Off After PC power on or off the serial communication RS232 RS485 is likely to drop A card reset is needed in this case 56 D 5 RS485 Up to 64 LCIC WIM boards may be connected to one PC port In the PC side use a converter either from the RS232 port or from the USB port that is RS232 to RS485 converter or USB to RS485 converter In the board side use the serial port CONN3 refer to the table in the beginning of this appendix Using the LCIC WIM SETTINGS utility each board is assigned a unique address between 1 and 64 refer to section 3 3 2 1 3 never give the same address to more than one board An RS485 board may be either active or inactive An active board honours all commands while an inactive board honours only the RS485 address handling commands Upon board reset it wakes up inactive A board starts being active when it receives its activate board command and stops being active when an activate board command to any o
55. r2 amp Decimator to 11 22 amp 33 respectively apply Set_Filtering 11 22 33 Now in order to change Filter amp Filter2 to 10 amp 20 respectively and leave Decimator unchanged apply Set_Filtering 10 20 0 Finally in order to leave both Filter amp Decimator unchanged and set Filter2 to 2 apply either Set_Filtering 0 2 0 or Set_Variable wFilter2 2 Get_Filtering Filter1 Filter2 Decimator Filter1 Integer 2 256 Filter2 Integer 2 256 Decimator long 1 1000 Refer to the Filtering square in the variables table above The Get_Filtering is functionally equivalent to Filter Get_Variable rFilter1 Filter2 Get_Variable rFilter2 Decimator Get_Variable rDecimator and has no time advantage as the get operation does not cause board reset the Get_Filtering function has been supplied just for symmetry with Set_Filtering 43 4 3 4 Fast Mode The Fast Mode is not available with RS485 During the Fast Mode there is auto high speed transmission of weight readings to the communication About the transmission rate refer to the Fast Mode square in the variables table above At the end a timer stamp is appended Its value is the time elapsed from start of transmission until end of transmission in ms The readings that are returned in this mode are always integers and they equal the actual weight multiplied by 1 10 100 1000 or 10000 depending upon the resolutio
56. refer to Fast Speed Config in section E 4 3 69 E 4 Filling Parameters Notes 1 There is a set of three setpoints Once they are specified using the Settings utility the user may switch to another setpoint without needing a PC This gives more flexibility when several setpoints are needed For details about the switching procedure refer to section E 2 2 These setpoints are absolutely different from the four general setpoints section 3 3 1 3 The general setpoints are inactive in the Fill mode Filling By Weight Means that Setpoint is defined in weighing units Time Means that Setpoint is defined in time units E 4 1 Filling By Weight E 4 1 1 Filling by Weight Parameters Setpoint x The required total filling weight when the user selects setpoint x x 1 2 or 3 Slow Amount The required slow filling weight in of the current Setpoint a tip shows the value of Slow Amount in weight units Specify 0 when only one speed is required Filling Timeout Time limitation for the filling process in ms Note The Filling Timeout parameter is common for all the three setpoints Therefore specify a Filling Timeout value large enough to cover all the setpoints used 70 Auto Correction amp Averaging x last fillings When Auto Correction is checked the board tries to correct the filling amount based on the results of the last x fillings E 4 1 2 Auto Tare Acti
57. rror an Error status Status When ON ON Auto ON Start not Emergency in error Long ON Stop Special riot Mode during filling The Special Mode In this mode SP flashes on the left side of the LED display The three setpoints are shown in turn on the LED display In this state while input 3 is still on you have two options 1 Switch the setpoint Turn input 3 off The setpoint currently shown on the LED display becomes effective The LED display will show SUCCESS and then the board will return to regular auto mode You will be able to see the effective setpoint on the LED display prefixed by SP If the get results immediately option is selected the board reports to the PC Setpoint selected as 2 Switch to general non fill mode Turn input 2 on for 2 seconds The LED display will show Gen ModE and then the board will switch to the general mode Note When the board switches to the general mode make sure to turn input 3 off otherwise the manual zero operation will take place refer to section H 1 Manual Zero Hardware input 68 E 3 Hardware Outputs Slow Valve Output 2 only Output 1 Output 2 Output 3 Output 4 Option 1 Fast Valve Slow Valve Filling Complete Option 2 Error Only with board firmware 1 11 or Fast Valve Output 1 Output 2 higher About Options 1 and Option 2
58. system reset either power off on or using the S command Float 102 General Setpoint2 Becomes effective only after a system reset either power off on or using the S command Float 103 General Setpoint3 Becomes effective only after a system reset either power off on or using the S command Float 104 General Setpoint4 Becomes effective only after a system reset either power off on or using the S command Float 111 Output1 Mode 0 manual 1 general setpoint Becomes effective only after a system reset either power off on or using the S command Float 112 Output2 Mode 0 manual 1 general setpoint Becomes effective only after a system reset either power off on or using the S command Float 113 Output3 Mode 0 manual 1 general setpoint Becomes effective only after a system reset either power off on or using the S command Float 114 Output4 Mode 0 manual 1 general setpoint Becomes effective only after a system reset either power off on or using the S command Float 115 Baud rate for the RS232 RS485 port Possible values 19200 28800 38400 57600 115200 Note The baud rate for the USB need not be defined its upper limit is 921 600 Float 35 Calibration Name 32 characters max Organised 3 characters per location in case the 102721934 length
59. t warranty to cover handling and shipping time This ensures that OMEGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components in which wear is not warranted include but are not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the parts manufactured by it will be as specified and free of d
60. ter that Toggling_Counter increments when opto input V 2 is toggled 41 Variables Table cont d Category Variable Name Description Get Set Fast Mode FM_Updates FM_Updates Each how many internal updates there will be a Fast Mode transmission 3 52 734 integer The frequency of the internal updates is 52 734 Hz So the theoretical reading rate is from 17578 per sec to 1 per sec 52734 FM_Updates Practically the actual rate for low values of FM_Updates is usually less than the theoretical rate Notes 1 This rate relates to USB communication upon using RS232 the rate is far smaller 2 The Fast Mode is not available with RS485 Misc Version_ID LCIC WIM V Version Number Serial_ Number Card s serial number 42 4 3 3 Filters Set_Filtering Filter1 Filter2 Decimator Filter1 Integer 2 256 or 0 Filter2 Integer 2 256 or 0 Decimator long 1 1000 or 0 Refer to the Filtering square in the variables table above Set_Filtering supplies a faster way to change the filtering parameters when more that one of them has to be changed as the change operation causes board reset which is time consuming individual activations of Set_Variable would require this time more than once Specify 0 for a parameter that needs no change For example in order to set Filterl Filte
61. ther board is sent Hence only one board at most may be active at the same time About the handling of the RS485 address while coding your application please refer to the RS485 Commands and RS485 Responses sections below which expand the summary given in section 4 1 h RS485 Address selection setting amp reading gt When a board is configured as an RS485 device its address is shown for a while on the LED display upon board reset for example rS 485 18 for the board addressed 18 57 RS485 Commands Except Nx lt c r gt paragraph d these commands are available also in the fill mode a Activate address x x 1 2 3 62 63 64 gt x lt c r gt Board s response 1 If address x is already active Ix lt c r gt The board reports that it is already active and has nothing to do 2 If address x is not active 2 1 If another address is currently active Ax lt c r gt I m going to sleep The falling board reports that it received an activation command to another board then it makes itself inactive 2 2 If address x exists Ax lt c r gt I m becoming active The rising board reports that it makes itself active Please refer to the notes on the next page 58 Notes 1 Wait 10 ms after sending the colon before sending the rest of the command x lt c r gt 2 Wait 30 ms after sending the x lt c r gt command before analyzing the response
62. ure you want to save the new calibration Otherwise that is you want to stay with the previous calibration leaving out the pseudo calibration click Exit and answer Yes to the following question that pops up Attention x Please note You didn t save the changes that you made and they are going to be lost 4re you sure you want to exit Please note that after saving the calibration to the board you still may remain in the utility which will show now board s response after the calibration which is now real and not pseudo any more 16 3 2 2 The Calibrations Library Each calibration that the user applies may be saved in the Calibrations Library Later on the user may use that library as a short cut in order to restore a previous calibration quickly and reliably The procedure is very simple Save Unless the Save to Library box is unchecked each calibration is automatically saved to the library upon its saving to the board in Step 5 Its name is the Calibration Name parameter Restore In order to restore a calibration from the library to the board press Library in Step 2 and select the required calibration file e g IMS Lbr in the example below You may watch but not change the selected calibration s parameters Clicking Save to Board and Exit will restore the selected calibration to the board Unnecessary calibration may be erased by click
63. vate e When not checked the Setpoint defines the requested final gross weight That is if the setpoint is 100 kg and the starting gross weight is 90 kg the filling amount will be 10 kg The next two parameters Hi Lo Limits are irrelevant e When checked the Setpoint defines the requested filling amount That is if the setpoint is 100 kg the filling amount will also be 100 kg regardless of the starting gross weight However the filling operation will take place only if the starting gross weight as found in accordance with the Stabilization Criterion section E 4 1 4 is within the range defined by the following two parameters Hi Lo Limits Otherwise the filling operation will be rejected and an error will be reported Hi Limit When Auto Tare is activated specifies the high allowed tare limit Lo Limit When Auto Tare is activated specifies the low allowed tare limit 71 E 4 1 3 Valid Results Limits The resulting filling weight should normally be inside a user pre defined valid range In case the weight exceeds that range an error situation will occur Specify Valid Limits 0 if you don t need this check Start from filling Specifies the first filling to be checked letting you disregard some filling until the board learns the system thus gives good results For example if 7 is specified then no error situation will occur upon the first 6 fillings whatever the results will be

Omega Speaker Systems High Speed Load Cell Interface Card LCIC-WIM-BEN User's Manual

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