0822mu4X37-1 CONCTR_4 4X37 Standard Manual UK PDF
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1. Formula Value 1 2 amp xponent 127 14 Mantissa Example Bytel Byte2 Byte3 Byte4 01000000 1111 0000 0000 0000 0000 0000 Value si 2012P 4 4745 Please note that if transfer of MSB first has been selected the byte with the sign will come first in the weight indications and if LSB first has been selected default setting the byte with the sign will come last in the weight indications Version 2009 12 01 rev 1 Page 6 Eilersen Industrial Sensors 4X37 User manual 4 DATA PROCESSING 4 1 Zeroing calibration and weight calculation Calculation of system weight s is done by addition of the weight registers for the loadcells belonging to the system This is explained below Note that the result is only valid if all status registers for the loadcells in question indicate no errors It should also be noted that it is up to the master to ensure the usage of consistent loadcell data when calculating the system weight the used data should come from the same telegram 4 1 1 Zeroing of weighing system Zeroing of a weighing system all loadcells in the specific system should be performed as follows taking into account that no loadcell errors may be present during the zeroing pro cedure 1 The weighing arrangement should be empty and clean 2 The DeviceNet master verifies that no loadcell errors are present after which it reads and stores the actual weight signals for the loadcells of the act2. Status for loadcell 2 Red Bad connection loadcell not ready or other error detected 3 Status for loadcell 3 Red Bad connection loadcell not ready or other error detected 4 Status for loadcell 4 Red Bad connection loadcell not ready or other error detected Version 2009 12 01 rev 1 Page 13 Eilersen Industrial Sensors 4X37 User manual The MS and NS LED s can in conjunction with the table below be used for error finding Light Color Status Description emitting diode MS Green ON Normal Operation Communication performed normally Flashing Standby State The unit needs supervision Red ON Unrecoverable fault A timer error memory error or other system error The unit may need replacing Flashing Recoverable fault Configuration error DIP switch not set correct or similar error Correct error and restart unit OFF No power The power is disconnected or the unit is being restarted NS Green ON On Line Connection OK The unit is On Line and a connection with the master has been established Flashing On Line No Connection The unit is On Line but no connection to the master has been established Red ON Critical Communication Error The unit has detected an error that makes it impossible to communicate on the net work duplicate MAC Id or Bus Off error Flashing Communication Time Out One or more I O connections are in the
3. that the above listed status codes are valid when the 4040 communication module is equipped with standard program Version 2009 12 01 rev 1 Page 18
4. use Red Version 2009 12 01 rev 1 Page 17 Eilersen Industrial Sensors 4X37 User manual 8 APPENDIX STATUS CODES Status codes for the connected loadcells are shown as a 4 digit hex number If more than one error condition is present the error codes are OR ed together CODE CAUSE Hex 0001 Reserved for future use 0002 Reserved for future use 0004 Reserved for future use 0008 Reserved for future use 0010 Power failure Supply voltage to loadcells is to low 0020 New loadcell detected or loadcells swapped Power the system off and back on Then verify that all parameters are acceptable 0040 No answer from loadcell Bad connection between loadcell and loadcell module Bad connection between loadcell module and communication module 0080 No answer from loadcell Bad connection between communication module and master module 0100 Reserved for future use 0200 Reserved for future use 0400 Reserved for future use 0800 No loadcell answer Bad connection between loadcell and loadcell module Bad connection between loadcell module and communication module Bad connection between communication module and master module Bad setting of DIP switches on loadcell or communication module 1000 Reserved for future use 2000 Reserved for future use 4000 Reserved for future use 8000 Reserved for future use Please note
5. CENET 2 CAN_L Blue DEVICENET 3 SHIELD Grey DEVICENET 4 CAN_H White DEVICENET 5 V Red 24VDC input Version 2009 12 01 rev 1 Page 11 Eilersen Industrial Sensors 6 2 4 SW1 settings The front panel of the 4X37 system unit is equipped with a 4 pole DIP switch block named SWI1 These switches are mounted on the 4040 communication module and they are ONLY read during power on When the 4040 communication module is equipped with standard program their functionality is as follows 4X37 User manual Sw1 1 FIR Filter OFF No filter ON 30 taps SWITCH FUNCTION Swl 2 Swl 4 Reserved for future use 6 2 5 SWD settings The front panel of the 4X37 system unit is equipped with a 8 pole DIP switch block named SWD These switches allow setting of the DeviceNet communication address and De viceNet communication speed baudrate of the 4X37 DeviceNet system unit This DIP switch block has the following function SWITCH FUNCTION SWD 1 SWD 6 Selection of DeviceNet Node Address NA The address 0 63 is selected as the DIP switches are binary coded so SWD 6 is MSB and SWD 1 is LSB Note that these switches are only read during power on SWD 7 SWD 8 Selection of DeviceNet Data Rate DR The desired baudrate is set according to the table below Note that these switches are only read during power o
6. Eilersen Industrial Sensors Applies for Program no Document no Date Rev Kokkedal Industripark 4 DK 2980 Kokkedal Denmark info eilersen com Tel 45 49 180 100 Fax 45 49 180 200 4X37 DEVICE NET SYSTEM Status and weight transfer using DeviceNet CONCTR 4 080822 1 0822mu4X37 1 2009 12 01 1 Eilersen Industrial Sensors 4X37 User manual 1 CONTENTS Dy CONTENTS OR EE ER E EE hace 2 2 INTRODUC THON NN 3 d d troduction RR E Ge Be Pe EN Ge 3 2 2 DeviceNet Ped 3 IY DATA ELIA OE UIE EO ened OE N ER a EE 4 3 1 DeviceNet communication using PPO sesse ees EES RE Ee Ese Gee Rek eed ee GES se Eed 4 32 Data eu REE EEE EE RE ON NE 5 321 Ursigri d integer format 16 bi sesse ee eN Be ge ede GR NG Ge EN ee Ge 5 3 2 2 Signed integer format 32 bit esse ee AE GR Ga Ge ee ee SEG DE Ges Ge De DER Dk ee KG Rg es GR Ee Ee 5 S22 IEEE754 floating point format 32 bit sies said des ERROR eg ee 6 4 DATA PROCESS LE N EE RE EE N 7 4 1 Zeroing calibration and weight calculaHON iese se esse es see Ge ee RA GR Re ee ee RA Re ee ee 7 SEE ES SySteM ss see ERE ED aa Re De Oe RE AG Ee ES 7 4 12 Corner calibration of weighing system esse esse Gee BEKEER ceeds hae ERGER ARE GeN Ge DOEN dude 7 4 1 3 Calculation of uncalibrated system weight sesse ese EKSEGESE AE N Ee 8 4 1 4 System calibration of weighing SVSIER sessie Ek ese dee VEN eg de EES KEN Ge eg de ie 8 SJINSTALATION OF SVS EMM sees Eis eb gesus soene geed en ee
7. Time Out state OFF No power Off line The device may not be powered 6 3 Hardware Selftest During power on the 4X37 DeviceNet system unit will perform a hardware selftest The test will cause the light emitting diodes D1 MS and NS to flash shortly one at a time 6 4 Update times The 4X37 DeviceNet system unit samples the loadcell signals over a period of 200 mS The hereby found loadcell signals are used in the DeviceNet communication until new signals are achieved when the next sample period expires Update times across the DeviceNet communi cation depends on the specific DeviceNet configuration selected baudrate number of slaves scan times etc Version 2009 12 01 rev 1 Page 14 Eilersen Industrial Sensors 4X37 User manual 7 APPENDIX INTERNAL FEATURES 7 1 4037 DeviceNet module This chapter describes possible connections DIP switch settings and jumper settings that are available internally on the 4037 DeviceNet module These will normally be set from Eilersen Electric and should only be changed in special situations 7 1 1 SW3 settings The 4037 DeviceNet module is internally equipped with a 4 pole DIP switch block named SW3 This DIP switch block has the following function SWITCH FUNCTION Sw3 1 Sw3 4 Reserved for future use 7 1 2 Jumper settings The 4037 DeviceNet module is internally equipped with 5 jumpers These jumper
8. alled parameter process data object PPO consisting of 26 bytes This telegram object is only used when transferring data from the slave to the master since no data are transmitted from the master to the slave The structure for this telegram is as follows Le Le Le Le Le Register Status 0 Signal 0 Status 3 Signal 3 0 1 2 3 4 15 16 17 20 121 122 23 24 125 The byte order MSB LSB first for the individual parts of the telegram is determined by a jumper Normally this jumper is set from the factory so that LSB comes first In the fol lowing bit 0 will represent the least significant bit in a register LcRegister is a word two bytes that constitute a bit register for indication of connected loadcells detected during power on Hence bit 0 3 will be ON if the corresponding loadcell address LC1 LC4 was detected during power on LcRegister is always transferred in 16 bit unsigned integer format LcStatus X is a word two bytes that constitute a register containing the actual status for loadcell X LeStatus X is always transferred in 16 bit unsigned integer format During normal operation this register will be 0 but if an error occurs some bits in the register will be set resulting in an error code A description of the different error codes can be found in the chapter STATUS CODES LcSignal X is a double word f
9. gned integer format 32 bit The following are examples of decimal numbers represented on 32 bit signed integer for mat Decimal Hexadecimal Binary MSB first 20000000 OXFECED300 11111110 11001110 11010011 00000000 2000000 OxFFE17B80 11111111 11100001 01111011 10000000 200000 OxFFFCF2CO 11111111 11111100 11110010 11000000 20000 OxFFFFB1EO 11 10110001 11100000 2000 OxFFFFF830 11111 11111000 00110000 200 OxFFFFFF38 111 11111111 00111000 2 OxFFFFFFFE 1111111 11111111 11111111 11111110 1 OxFFFFFFFF 11111111 11111111 11111111 11111111 0 0x00000000 00000000 00000000 00000000 00000000 1 0x00000001 00000000 00000000 00000000 00000001 2 0x00000002 00000000 00000000 00000000 00000010 200 0x000000C8 00000000 00000000 00000000 11001000 2000 0x000007D0 00000000 00000000 00000111 11010000 20000 0x00004E20 00000000 00000000 01001110 00100000 200000 0x00030D40 00000000 00000011 00001101 01000000 2000000 0x001E8480 00000000 00011110 10000100 10000000 20000000 0x01312D00 00000001 00110001 00101101 00000000 Version 2009 12 01 rev 1 Page 5 Eilersen Industrial Sensors 4X37 User manual 3 2 3 IEEE754 floating point format 32 bit Representation of data on IEEF 754 floating point format is done as follows Bytel Byte2 Byte3 Byte4 bit7 bit6 bitO bit7 bit6 bitO bit7 bitO bit7 bitO Sign Exponent Mantissa Mantissa Mantissa
10. itches are ONLY read during power on This DIP switch block has the following function when the 4040 communication module is equipped with standard program Sw2 1 Sw2 2 Sw2 3 Number of loadcells OFF OFF OFF 1 ON OFF OFF 1 OFF ON OFF 2 ON ON OFF 3 OFF OFF ON 4 ON OFF ON 5 OFF ON ON 6 ON ON ON 6 SWITCH FUNCTION Sw2 4 Sw2 8 Reserved for future use 7 2 2 Jumper settings The 4040 communication module is internally equipped with 4 jumpers named P2 P3 P4 and P5 In this system these jumpers must be set as follows JUMPER POSITION P2 OFF Loadcell connected to 4040 NOT accessible using SEL1 P3 OFF Loadcell connected to 4040 NOT accessible using SEL6 P4 OFF Loadcell connected to 4040 NOT accessible using SEL1 P5 OFF Loadcell connected to 4040 NOT accessible using SEL6 Version 2009 12 01 rev 1 Page 16 Eilersen Industrial Sensors 7 2 3 Light Emitting Diodes LEDs The 4040 communication module is internally equipped with a number of status lamps light emitting diodes The lamps have the following functionality when the 4040 com munication module is equipped with standard program 4X37 User manual LED FUNCTION DIT Reserved for future use Red DI2 Reserved for future use Red DI3 Reserved for future use Red D14 Reserved for future
11. ke Gee Ed Gees es ese Ge ede Ge 9 5 1 Ch cklist during installation osse SE Es ER ee aeie Ge Ee EE ED 9 6 HARDWARE DESCRIPTION sie ese niese se ees see wees E dee SG eed de 10 SEE RE ee EG ee Ee n EG EE 10 62 4X37 fr nt Pre deseriplOm sea Re ee ae nessie wes ne Ee Dee ee Ge hes 11 621 Connection of POWER es ERA Gee RAD EES REG Gee Ene beds unde 11 0 2 2 Connection of 0 EE EEE 11 621 DeviceNet Connector eee 11 EEE AE EE OE EE E RE 12 0 2 3 SWD ie OE EE EE ER EE N OE iea tesian 12 62 6 Light Emitting Diodes LEDS ses sep ER Seed ve Ed GEE RS ER ERGE SN EG EK SE GE 13 6 Hardware SelfteSt se Ee a menus atta REG de eo EE 14 6 4 Updat MES AREA OE EE OE EE EE N DR OE N ON OE EE 14 7 APPENDIX INTERNAL PEA DURES eis ect sewes stres ies bene eten se ee Gesoek geed ben ses iet beess es ieke 15 TL D viceNet module sed 15 TL SWS SPS Aenean EE 15 7 42 Jumper seter MAER RE OR EE OE ans 15 7 2 4040 communication ARIE ale 16 Tl SWA BOUIN REE EE OE A E ED 16 T22 Jamper settings EE EE EE EE ED 16 125 Taght Emitting Diodes EDS ed Ed Re OK Eed sr Da ee ie ea Dee de ES 17 8 APPENDIX STATUS CODES 4ste iek ei Gees die bed ene Ee ese Bere eds keuses ees ak gede ERGE 18 Version 2009 12 01 rev 1 Page 2 Eilersen Industrial Sensors 4X37 User manual 2 INTRODUCTION 2 1 Introduction This document describes the use of a 4X37 DeviceNet system unit from Eilersen Electric The 4X37 system unit consists internally of a 4037 DeviceNet m
12. n SWD 8 SWD 7 4X37 DeviceNet Data Rate DR OFF OFF 125 kbps OFF ON 250 kbps ON OFF 500 kbps ON ON Not allowed Version 2009 12 01 rev 1 Page 12 Eilersen Industrial Sensors 4X37 User manual 6 2 6 Light Emitting Diodes LEDs The front panel of the 4X37 system unit is equipped with a number of status lamps light emitting diodes These have the following functionality LED FUNCTION MS Module Status LED Green Red The 4037 Module Status LED that can be lit flashing in different colors depending on the status of the module The function of the MS LED is given in the table below NS Network Status LED Green Red The 4037 Network Status LED that can be lit flashing in different colors depending on the status of the network The function of the NS LED is given in the table below TxDN Transmit DeviceNet Green The 4037 module transmits on DeviceNet CAN bus TxBB Left 4037 communication with 4040 module internal Green 4037 DeviceNet module is transmitting to 4040 module DI Reserved for future use Green TxLC 4040 communication with loadcells Yellow 4040 communication module is communicating with loadcells TXBB Right 4040 communication with 4037 DeviceNet module internal Green 4040 communication module is transmitting to 4037 DeviceNet module 1 Status for loadcell 1 Red Bad connection loadcell not ready or other error detected 2
13. odule with the program listed on the front page and a 4040 communication module The 4X37 system unit is connected to X loadcells 1 4 With the program specified on the front page the 4X37 DeviceNet unit is capable of transmitting weight and status for up to 4 loadcells in a single telegram It is possible to connect the 4X37 DeviceNet unit to a DeviceNet network where it will act as a slave It will then be possible from the DeviceNet master to read status and weight for each of the connected loadcells Functions as zeroing calibration and calculation of system weight s must be implemented on the DeviceNet master Exchange of data between master and slave takes place as described in the following 2 2 DeviceNet specification The DeviceNet unit confirms to the following DeviceNet specifications Protocol DeviceNet Communications form CAN Module type Slave Baud rates kbit sec 125 250 500 DeviceNet address 0 63 DeviceNet connection Standard 5 pin DeviceNet connector IMPORTANT Load cell modules and instrumentation must be placed outside the hazardous zone if the load cells are used in hazardous ATEX Ex area Furthermore only ATEX certified load cells and instrumentation can be used in ATEX applica tions Version 2009 12 01 rev 1 Page 3 Eilersen Industrial Sensors 4X37 User manual 3 DATA EXCHANGE 3 1 DeviceNet communication using PPO DeviceNet communication with the 4X37 DeviceNet unit uses a so c
14. our bytes constituting a register containing the actual weight signal from loadcell X Depending on a jumper LeSignal X will be in either 32 bit signed integer format or in IEEE754 floating point format This jumper is default set so transfer of LcSignal X is done in 32 bit signed integer format Note that the value is only valid if the corresponding LeStatus X register is 0 indicating no error present The resolu tion of the loadcell signal is 1 gram so that 12345 gram is represented by the number 12345 Since only status and weight for the loadcells are transmitted in the telegram functions such as status handling calculation of system weight s zeroing and calibration must be implemented on the DeviceNet master Please refer to the chapter DATA PROCESSING for an explanation on how this typically can be done Version 2009 12 01 rev 1 Page 4 Eilersen Industrial Sensors 4X37 User manual 3 2 Data formats The DeviceNet communication can transfer data in the following three data formats If necessary please refer to other literature for further information on these formats 3 2 1 Unsigned integer format 16 bit The following are examples of decimal numbers represented on 16 bit unsigned integer format Decimal Hexadecimal Binary MSB first 0 0x0000 00000000 00000000 iL 0x0001 00000000 00000001 2 0x0002 00000000 00000010 200 0x00C8 00000000 11001000 2000 0x07D0 00000111 11010000 20000 0x4E20 01001110 00100000 3 2 2 Si
15. r supply dedicated to the weighing system and not connected to any other equipment NOTE If the loadcells are to be placed inside an EX area then the 4X37 system unit itself MUST be placed outside the EX area and the 4X37 system unit MUST be supplied as fol lows 1 The 2 pole connector J3 located to the right above the 4 pole DIP switch block MUST be pow ered by a 4051A power supply 24VDC ATEX approved from Eilersen Electric 2 The 2 pole connector J2 located to the left above the 5 pole connector DEVICENET MUST be powered by a separate 24VDC that has NO connection to the ATEX approved 24VDC from the above mentioned 4051A power supply 6 2 2 Connection of loadcells The loadcells must be connected to the available BNC connectors in the front panel of the 4X37 system unit The loadcells are connected starting with the connector marked 1 and continuing onwards in rising order Thus if three loadcells are to be connected they should be connected to the BNC connectors marked 1 2 and 3 6 2 3 DeviceNet connector The front panel of the 4X37 system unit is equipped with a five pole connector with a standard DeviceNet interface This allows for direct connection to a DeviceNet network using standard DeviceNet connectors The specific terminals in the connector have the fol lowing function as described in the DeviceNet Specification Connection Function Color DEVICENET 1 V Black OVDC input DEVI
16. s have these functions JUMPER FUNCTION JUI Reserved for future use normal default factory setting is OFF JU2 Test mode JU2 OFF Normal mode default at delivery and should not be changed JU2 ON Test mode The jumper must be OFF during normal operation JU6 Test mode JU6 OFF Normal mode default at delivery and should not be changed JU6 ON Test mode The jumper must be OFF during normal operation JU7 Selection of 32 Bit Signed Integer IEEE754 data format The jumper determines if the weight indications in the telegram are in 32 bit signed integer or in IEEE754 floating point format OFF 32 bit signed integer format normal setting from factory ON IEEE754 floating point format JU8 Selection of LSB MSB data format The jumper determines the byte order in which data are transmitted received OFF LSB first normal setting from factory ON MSB first Version 2009 12 01 rev 1 Page 15 Eilersen Industrial Sensors 7 2 4040 communication module 4X37 User manual For information on jumper settings DIP switch settings LED status lamps etc on the 4040 communication module that is not covered in the above please refer to the separate docu mentation that describes the 4040 communication module and its specific software 7 2 1 SW2 settings The 4040 communication module is internally equipped with a 8 pole DIP switch block named SW2 Please note that these sw
17. ss LcGross X1 LcGross X2 or Gross LcGrossCal X1 LcGrossCal X2 P s 4 1 4 System calibration of weighing system Based on the uncalibrated system weight a system calibration can be made as follows 1 Check that the weighing arrangement is empty Zero the weighing system 2 Place a known load calLoad on the weighing arrangement 3 Calculate the calibration factor that should be multiplied on the uncalibrated sys tem weight in order to achieve correct showing as CalFactor CalLoad Actual Gross After this the determined calibration factor is used to calculate the calibrated sys tem weight as follows GrossCal CalFactor Gross If the determined calibration factor falls outside the interval 0 9 to 1 1 it is very likely that there is something wrong with the mechanical part of the system This does not however apply to systems that do not have a loadcell under each support ing point For example on a three legged tank with only one loadcell you should get a calibration factor of approximately 3 because of the two dummy legs Version 2009 12 01 rev 1 Page 8 Eilersen Industrial Sensors 4X37 User manual 5 INSTALATION OF SYSTEM 5 1 Checklist during installation During installation of the system the following should be checked 1 2 3 4 5 6 7 8 9 10 11 12 13 14 If necessary the DeviceNet master should be configured to communicate
18. tatus x Verify that every loadcell gives a signal LcSignal x by placing a load directly above each load cell one after the other possibly with a known load The system is now installed and a zero and fine calibration is made as described earlier Finally verify that the weighing system s returns a value corresponding to a known actual load Note that in the above checklist no consideration has been made on which functions are implemented on the DeviceNet master Version 2009 12 01 rev 1 Page 9 Eilersen Industrial Sensors 6 1 4X37 overview 6 HARDWARE DESCRIPTION 4X37 User manual The following figure is an overview of a 4X37 DeviceNet system unit with 4 loadcell con nections i e a 4437 system unit Version 2009 12 01 rev 1 DeviceNet u Eilersen EI a N A Page 10 Eilersen Industrial Sensors 4X37 User manual 6 2 4X37 front panel description This chapter describes the connections DIP switch settings and lamp indications that are available on the front panel of the 4X37 system unit 6 2 1 Connection of power The 4X37 system unit is powered by applying 24VDC on the green two pole connectors J2 and J3 as specified on the front panel of the 4X37 system unit This powers the entire 4X37 system unit including the loadcells IMPORTANT The used power supply must be stable and free of transients It may there fore be necessary to use a separate powe
19. ual system in corresponding zeroing registers LceZero x LcSignal x 3 After this the uncalibrated gross weight for loadcell X can be calculated as LcGross X LcSignal X LcZero X 4 1 2 Corner calibration of weighing system In systems where the load is not always placed symmetrically the same place for example a platform weight where the load can be placed randomly on the platform when a weighing is to take place a fine calibration of a systems corners can be made so that the weight in dicates the same independent of the position of the load This is done as follows 1 Check that the weighing arrangement is empty Zero the weighing system 2 Place a known load CalLoad directly above the loadcell that is to be corner cali brated 3 Calculate the corner calibration factor that should be multiplied on the uncali brated gross weight of the loadcell in order to achieve correct showing as CornerCalFactor x CalLoad LcGross x After this the determined corner calibration factor is used to calculate the cali brated gross weight of the loadcell as follows LeGrossCal x CornerCalFactor x LcGross x Version 2009 12 01 rev 1 Page 7 Eilersen Industrial Sensors 4X37 User manual 4 1 3 Calculation of uncalibrated system weight Based on the loadcell gross values LcGross x or LcGrossCall x whether they are corner calibrated or not a uncalibrated system weight can be calculated as either Gro
20. with the 4X37 DeviceNet system unit using the supplied EDS file The loadcells are mounted mechanically and connected to BNC connectors in the front panel of the 4X37 system unit The 4X37 DeviceNet system unit is connected to the DeviceNet network using the DeviceNet con nector in the front panel of the 4X37 system unit If necessary a possible termination of the De viceNet network is made at this DeviceNet slave Use SW1 in the front panel of the 4X37 system unit to select any features associated with SW1 on the 4040 communication module Use SWD 1 SWD 6 in the front panel of the 4X37 system unit to select the communication address of the 4X37 DeviceNet system unit Use SWD 7 SWD 8 in the front panel of the 4X37 system unit to select the communication speed baudrate of the 4X37 DeviceNet system unit Power 24VDC is applied at the 2 pole power connectors in the front panel of the 4X37 system unit as described in the hardware section and the DeviceNet communication is started Verify that the MS lamp and the NS lamp both end up green Verify that the TxDN lamp is lit flashes vague green Verify that the TxLC lamp yellow is lit turns on after approx 5 seconds Verify that the two TxBB lamps green are lit both lit after 10 seconds Verify that NONE of the 1 2 3 or 4 lamps red are lit Verify that the 4X37 DeviceNet system unit has found the correct loadcells LcRegister and that no loadcell errors are indicated LcS
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