1117mu4X35-0a CONCTR_4 4X35 Standard Manual UK PDF
Contents
1. 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 2011 05 17 rev 0a 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 4X35 User manual LED FUNCTION D11 Reserved for future use Red D12 Reserved for future use Red D13 Reserved for future use Red D14 Reserved for future use Red Version 2011 05 17 rev 0a Page 17 Eilersen Industrial Sensors 4X35 User manual 8 APPENDIX STATUS CODES Status codes 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 Reserv2. only ATEX certified load cells and instrumentation can be used in ATEX applica tions Version 2011 05 17 rev 0a Page 3 Eilersen Industrial Sensors 4X35 User manual 3 DATA EXCHANGE 3 1 Profibus DP communication using PPO Profibus DP communication with the 4X35 Profibus DP unit uses a so called 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 21 122 23 24 25 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 MSB 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 a
3. By use of DIP switches located internally in the 4X35 Profibus DP system unit it is possi ble to include one of 3 different FIR filters that will be used to filter the loadcell signals Thus it is possible to send the unfiltered loadcell signals achieved over the selected meas urement period through one of the following FIR filters before the results are transmitted on the Profibus 3 5 Scaling SW3 4 SW3 3 No Taps Frequency Dampin Tavg Tavg Tavg Tavg 20ms 100ms 400ms 2000ms OFF OFF 0 ON OFF 1 9 12 0 Hz 2 4 Hz 0 6 Hz 0 12 Hz 80dB OFF ON 2 21 6 0 Hz 1 2 Hz 0 3 Hz 0 06 Hz 80dB ON ON 3 85 1 5 Hz 0 3Hz 0 075Hz 0 015Hz 80dB NOTE With both switches OFF which is default setting upon delivery no filtering is performed By use of a DIP switch it is possible to select the desired scaling of the weight signals The scaling of the weight signals on the Profibus is determined by SWP 1 as follows where the table shows how a given weight is represented on the Profibus depending on switch and jumper settings JU7 OFF JU7 ON 32 bit signed integer IEEE 754 floating point Weight normal default delivery gram SWP 1 OFF SWP 1 ON SWP 1 OFF SWP 1 ON 1 gram 1 10 gram 1 gram 1 10 gram 1 0 1 10 1 000 10 000 123 4 123 1234 123 000 1234 000 Version 2011 05 17 rev 0a Page 7 Eilers
4. 2 Eilersen Industrial Sensors 6 2 4 SW1 settings 4X35 User manual The front panel of the 4X35 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 Sw1 1 FIR Filter OFF No filter ON 30 taps SWITCH FUNCTION Swl 2 Swl 4 Reserved for future use 6 2 5 SWP settings The front panel of the 4X35 system unit is equipped with a 8 pole DIP switch block named SWP These switches allow setting of the Profibus DP communication address of the 4X35 Profibus DP system unit This DIP switch block has the following function SWITCH FUNCTION SWP 1 Scaling switches are only read during power on Used to select the desired scaling as described in an earlier chapter Note that these SWP 2 SWP 8 Selection of Profibus DP communication address The address is selected as the DIP switches are binary coded so SWP 2 is MSB and SWP 8 is LSB Note that these switches are only read during power on Version 2011 05 17 rev 0a Page 13 Eilersen Industrial Sensors 4X35 User manual 6 2 6 Light Emitting Diodes LEDs The front panel of the 4X35 system unit is equipped with a number of status lamps light emitting diodes
5. 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 4X35 PROFIBUS DP SYSTEM Status and weight transfer using Profibus DP CONCTR_4 091117 0 1117mu4X35 0a 2011 05 17 0a Eilersen Industrial Sensors 4X35 User manual 1 CONTENTS Dy CONTENTS c handen 2 MEIN 3 PX troduction EE E R E R 3 2 2 Profib s DP PNL eee 3 IY DATA EXCHANGE P 4 3 1 Profibus DP communication using PPO aimemeesreermmiruesniammdeiseemidersaettsedsskpsdnderkngdekanelsdedkaetdee 4 3 2 Data TOMAS ER ENER Dc 5 321 Unsigned integer format 16 bi aaa tiep identico i cadis 5 3 2 2 Signed integer format 32 DIL Lise iere te Riva ENSE NIE LIX EE VADE ae V REP e Qu LUN de vesbevervasneyes 5 53 IEEE754 floating point format 32 DIE ee eet etus Seas pea prada etae tdem a epis t Uesa basi a 6 3 3 Measurement UNE oue oe aeui eoan epe la D a ERE EE EEEE E Nd E sd ap bDdUE 7 Tvers 7 eee EE T 7 4 DATA PROCESSING Nei 8 4 1 Zeroing calibration and weight calculation eese 8 Zl Zeroing of weighing System s ede ede rn aera Bn delig 8 4 1 2 Corner calibration of weighing system vci ccit cecssctcdcesececccsesleedeccaas ceed teas ddcediavecdeanceniedessbeds 8 4 1 3 Calculation of u
6. Profibus DP system unit from Eilersen Elec tric The 4X35 system unit consists internally of a 4035 Profibus DP module with the program listed on the front page and a 4040 communication module The 4X35 system unit is connected to X loadcells 1 4 With the program specified on the front page the 4X35 Profibus DP unit is capable of transmitting weight and status for up to 4 loadcells in a single telegram It is possible to connect the 4X35 Profibus DP unit to a Profibus DP network where it will act as a slave It will then be possible from the Profibus DP master to read status and weight for each of the connected loadcells Functions as zeroing calibration and calcula tion of system weight s must be implemented on the Profibus DP master By use of DIP switches it is possible to select measurement time select scaling include one of 3 different FIR filters Exchange of data between master and slave takes place as described in the following 2 2 Profibus DP specification The Profibus DP unit confirms to the following Profibus DP specifications Protocol Profibus DP Communications form RS485 Module type Slave Baud rates kbit sec 9 6 19 2 93 75 187 5 500 1500 3000 6000 12000 Profibus address 0 127 Profibus connection 9 pin sub D female 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
7. These have the following functionality LED FUNCTION DES Data Exchange State Yellow Exchange of data between 4X35 Profibus DP slave and master RTS RtS signal SPC3 Yellow The 4X35 Profibus DP system unit sends to the master PBE Profibus Error when initializing the SPC3 Red The 4X35 Profibus DP system unit was not initialized correctly TxBB Left 4035 communication with 4040 module internal Green 4035 Profibus DP module is transmitting to 4040 communication module DI Reserved for future use Green D2 Reserved for future use Green TxLC 4040 communication with loadcells Yellow 4040 communication module is communicating with loadcells TxBB Right 4040 communication with 4035 Profibus DP module internal Green 4040 communication module is transmitting to 4035 Profibus DP module 1 Status for loadcell 1 Red Bad connection loadcell not ready or other error detected 2 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 6 3 Hardware Selftest During power on the 4X35 Profibus DP system unit will perform a hardware selftest The test will cause the light emitting diodes D1 D2 and PBE to turn on and off shortly one at a time 6 4 Up
8. date times Please note that update times across the Profibus DP communication depends on the specific Profibus DP configuration selected baudrate number of slaves scan times etc Version 2011 05 17 rev 0a Page 14 Eilersen Industrial Sensors 4X35 User manual 7 APPENDIX INTERNAL FEATURES 7 1 4035 Profibus DP module This chapter describes possible connections DIP switch settings and jumper settings that are available internally on the 4035 Profibus DP module These will normally be set from Eilersen Electric and should only be changed in special situations 7 1 1 SW3 settings The 4035 Profibus DP 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 2 Measurement time Used to select the desired measurement time as described in an earlier chapter Note that these switches are only read during power on Sw3 3 Sw3 4 Filtering Used to select the desired filter as described in an earlier chapter Note that these switches are only read during power on 7 1 2 Jumper settings The 4035 Profibus DP module is internally equipped with 7 jumpers These jumpers have these functions JUMPER FUNCTION JUI Reserved for future use normal default factory setting is OFF JU2 JU4 Reserved for future use termination normal default factory setting is OFF JU6 Reserved for fu
9. decimal numbers represented on 16 bit unsigned integer format Decimal Hexadecimal Binary MSB first 0 0x0000 00000000 00000000 1 0x0001 00000000 00000001 2 0x0002 00000000 00000010 200 0x00C8 00000000 11001000 2000 0x07D0 00000111 11010000 20000 Ox4E20 01001110 00100000 3 2 2 Signed 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 OxFFFFB1E0 11 10110001 11100000 2000 OxFFFFF830 11111 11111000 00110000 200 OxFFFFFF38 111 11111111 00111000 2 OxFFFFFFFE JETTI TOT Vri TO 1 OxFFFFFFFF Pl TT HE a 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 2011 05 17 rev 0a Page 5 Eilersen Industrial Sensors 4X35 User manual 3 2 3 IEEE754 floating point format 32 bit Represe
10. ed 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 Noloadcell 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 that the above listed status codes are valid when the 4040 communication module is equipped with standard program Version 2011 05 17 rev 0a Page 18
11. en Industrial Sensors 4X35 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 Profibus DP master verifies that no loadcell errors are present after which it reads and stores the actual weight signals for the loadcells of the actual system in corresponding zeroing registers LeZero 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
12. ion load is at least 5096 of the system capacity Calculate the calibrationfactor 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 calibrationfactor 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 2011 05 17 rev 0a Page 9 Eilersen Industrial Sensors 4X35 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 The Profibus DP master should be configured to communicate with the 4X35 Profibus DP system unit using the supplied GSD file Using DIP switches the desired measurement time filter and scaling is selected The loadcells are mounted mechanically and connected to BNC connectors in the front panel of the 4X35 system unit The 4X35 Profibus DP system unit is connected to the Profibus DP netw
13. lways 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 four 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 scaling of the loadcell signal is determined by a DIP switch as described later 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 Profibus DP master Please refer to the chapter DATA PROCESSING for an explanation on how this typically can be done Version 2011 05 17 rev 0a Page 4 Eilersen Industrial Sensors 4X35 User manual 3 2 Data formats The Profibus DP 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
14. 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 calibrationfactor that should be multiplied on the uncalibrated 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 LcGrossCal x CornerCalFactor x LcGross x Version 2011 05 17 rev 0a Page 8 Eilersen Industrial Sensors 4X35 User manual 4 1 3 Calculation of uncalibrated system weight Based on the loadcell gross values LcGross x Or LcGrossCal x whether they are corner calibrated or not a uncalibrated system weight can be calculated as either Or Gross LcGross X1 LcGross X2 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 2 3 Check that the weighing arrangement is empty Zero the weighing system Place a known load CalLoaa on the weighing arrangement NOTE In order to achieve a correct calibration of the system it is recommended that the used cali brat
15. n has been made on which functions are implemented on the Profibus DP master Version 2011 05 17 rev 0a Page 10 Eilersen Industrial Sensors 4X35 User manual 6 HARDWARE DESCRIPTION 6 1 4X35 overview The following figure is an overview of a 4X35 system unit with 4 loadcell connections i e a 4435 system unit 6 2 4X35 front panel description This chapter describes the connections DIP switch settings and lamp indications that are available on the front panel of the 4X35 system unit Version 2011 05 17 rev 0a Page 11 Eilersen Industrial Sensors 4X35 User manual 6 2 1 Connection of power The 4X35 system unit is powered by applying 24VDC on the green two pole connectors J2 and J3 as specified on the front panel of the 4X35 system unit This powers the entire 4X35 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 power 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 4X35 system unit itself MUST be placed outside the EX area and the 4X35 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 connecto
16. ncalibrated system weight munammenspeminnmnemenebddnsuleimtij un d 9 4 1 4 System calibration of weighing HEM eee eene iri ne ie advart mme ted 8 SHINSTALATION OF SYSTEM een 10 5 l Checklist during installation eden 10 6 HARDWARE DESCRIPTION sssisisesiissesscissserriscisseidcesressissrsescssesiseides rasdsessrsedsoiaseasddssiaess 11 ERE Me EEE a AA EI VE EE 11 6 2 dX 13 Tront panel description EEE EEES 11 62 1 Connection Of power ires esrin eiai naa EETA ERE AET E 12 6 22 Connection of loadc llS srsesn rosies iesrgioeiiinsrii si esii 12 623 Profibus DP GOnne cer suu ee nane Ide E E E eared 12 024A D EE o RUE TEE E ART E RE R 13 0 253 SVP Ne 13 6 2 6 Light Emitting Diodes LEDs eeseeseesessssessesessersesresstrsrisrerserssrseresresseseresrensereresreesesee 14 bo Hardware APG 14 6 4 Update MeS EE a NE E ad E 14 7 APPENDIX INTERNAL FEATURES eeseseeseesesrerresresstseresresserstertesstestestesseeseesteeseeseeeereset 15 114035 PO eee 15 EE SE EE 15 Police Jamper settings crescit EE E M 15 7 2 4040 comm nication modul RE 16 FAE A E 16 T22 Jamper setting eee 16 123 Light Emitting Diodes LEDS acis iiie qpeenebo Eee reo uae tuo E E E ERE 17 8 APPENDIX STATUS CODES snertne s etes best pex b a Added deua bom tk aiiin 18 Version 2011 05 17 rev 0a Page 2 Eilersen Industrial Sensors 4X35 User manual 2 INTRODUCTION 2 1 Introduction This document describes the use of a 4X35
17. ntation 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 Formula Value 1 5 2 exponent 12D 14 Mantissa Example Bytel Byte2 Byte3 Byte4 01000000 1111 0000 0000 0000 0000 0000 Value 1 20220 1 21 4274 2 27 5 Please note that if transfer of MSB first has been selected default setting the byte with the sign will come first in the weight indications and if LSB first has been selected the byte with the sign will come last in the weight indications Version 2011 05 17 rev 0a Page 6 Eilersen Industrial Senso rs 3 3 Measurement time By use of DIP switches located internally in the 4X35 Profibus DP system unit it is possi ble to choose between 4 different measurement times All loadcells are sampled averaged over a measurement period determined by Sw3 1 and Sw3 2 as follows 4X35 User manual SW3 1 SW3 2 Measurement time OFF OFF 20 ms OFF ON 100 ms ON OFF 400 ms ON ON 2000 ms NOTE Upon default delivery SW3 1 is OFF and SW3 2 is ON so that 100ms measuring time is achieved The hereby found loadcell signals possibly filtered are used in the Profibus DP communica tion until new signals are achieved when the next sample period expires 3 4 Filtering
18. ork using the Profibus DP connector in the front panel of the 4X35 system unit If necessary a possible termination of the Profibus DP network is made at this Profibus DP slave Use SW1 in the front panel of the 4X35 system unit to select any features associated with SW1 on the 4040 communication module Use SWP 2 SWP 8 in the front panel of the 4X35 system unit to select the communication address of the 4X35 Profibus DP system unit Power 24VDC is applied at the 2 pole power connectors in the front panel of the 4X35 system unit as described in the hardware section and the Profibus DP communication is started Verify that the PBE lamp red is NOT lit and that the DES lamp yellow and RTS lamp yellow are lit flashing Verify that the TxLC lamp yellow is lit turns on after approx 5 seconds Verify that the two TxBB lamps green are lit Verify that NONE of the 1 2 3 or 4 lamps red are lit Verify that the 4X35 Profibus DP system unit has found the correct loadcells LeRegister and that no loadcell errors are indicated LcStatus 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 consideratio
19. r J2 located to the left above the 9 pole Sub D connector PROFIBUS 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 4X35 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 Profibus DP connector The front panel of the 4X35 system unit is equipped with a nine pole female sub D connec tor with a standard Profibus DP interface This allows for direct connection to a Profibus DP network using standard Profibus DP connectors Termination of the Profibus should take place in the sub D connector male of the cable The specific terminals in the connec tor have the following function TERMINALS FUNCTION 1 Not used Not used RS485 A positive line Siemens designation B line Request to Send RTS 0 VDC Gnd 5VDC Vout Not used RS485 B negative line Siemens designation A line Not used DOl DI SIT D TY 5 SIR Note that some companies use different designations for the RS485 A and the RS485 B lines Therefore the polarity of the lines has been listed Version 2011 05 17 rev 0a Page 1
20. ture use normal default factory setting is OFF 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 ON MSB first normal setting from factory Version 2011 05 17 rev 0a Page 15 Eilersen Industrial Sensors 7 2 4040 communication module 4X35 User manual This chapter describes possible connections DIP switch settings jumper settings and LED status lamps that are available internally on the 4040 communication module These will normally be set from Eilersen Electric and should only be changed in special situations 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 switches 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
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