2012KCI User manual
Contents
1. Spare parts ordering Spare input card 2012KCI IN Spare electronics unit including input card SP EL2012KCI RS DI8 48 230VAC or whichever supply and cards Spare ribbon cable from el unit to large digits SP CA EL1000F Spare large digit SP 100DISP 100 mm digit INSTALLING Mounting Dimensions for 1000F 1100F and 1800F 500 670 1045 120 130 7 455 625 1025 7 210 Pie 188 250 375 l 4 482 650 1030 Ta Opening the case To access the electrical connections and the small user interface used for configuring the unit the steel case has to be opened First unscrew all the screws surrounding the display then lift off the black steel frame and the red plexiglass Finally unscrew the screw that is located on the right hand side of the rightmost digit Now the display assembly may be turned away on its hinges Inside the main case Auxiliary power s Supply voltage connectors Power supply Electronics unit l Grounding 23 N en 1 Y j A V yi ry hA User interface T Ribbon cable to the digits pdi signal slot A The left picture shows the parts in models with no auxiliary power supply while the right picture shows with an auxiliary power supply Ribbon cables 2 to the digits Input signal slot A The electronics unit The electronics unit may be opened or detached from the case To open it unsc2. TO T15 Texts associated to the different sling switch positions The four digital inputs are considered as a 4 bit binary word not Gray coded forming a value of 0 15 and these correspond to texts 0 15 Configuration menu 17 the input 1 is Hi1 This may be expressed in any units kg Ibs ton If the Display Mode is set to Single only Hi 1 is shown Hi 3 is shown only when there is two 2012 cards installed Dead Dead zone around zero Smaller readings than Dead are rounded to zero on the display If Dead 0 negative readings are prevented If Dead is set negative the function is disabled and all readings are shown as are Lopass Third order lowpass filter for the inputs Removes noise and disturbances from the reading Set the time constant 63 of step change in seconds Set to 0 to disable TareEnable Defines if the tare function is used or not If switched on the inputs may be tared by giving a pulse in the digital input 4 on the 2000 DI8 card 2012KCI will then store the readings of the three inputs to a non volatile tare memory and subtract those readings from all readings after that TO is displayed when all the digital inputs are non active T1 is displayed when the lowest input is active terminal C4 T2 when the second lowest is active etc The texts may be up to 8 characters It is recommended to edit them using a serial connection and PC software although it is possible t
3. display and buttons inside the display unit to perform configuration The contents of the configuration menu is described in chapter Configuration menu The small display inside the case and the large display always show the same contents except that the large display may have less than 6 digits and then the end of the message may be cropped off Normal state After power up the unit is in the normal state displaying the input readings according to the configuration and the digital inputs The displays may be in the following states e Normal state displaying the readings or controlled externally via the serial bus e Configuration state changing the settings e Quick configuration state changing the most primary settings e Monitor state displaying the readings and other variable data for troubleshooting e Card type programming state for experts only The small indicator leds above the small display have the following meanings A1 A2 A3 A4 M1 M2 Conf Input 1 enable Input 2 enable Input 3 enable Tare switch Serial Rx Serial Tx Configuration Indicate the states of the digital inputs 1to 3 Indicates the Indicates that Indicates that Indicates that on the digital input card state of the something this unithas the displays digital input 4 happens on received a are in the the serial bus valid configuration command or monitor and is state replying to it Quick conf
4. N AA N EA AA O MAN A PN NE ANA EA Ai 3 POMS CUM aa E An DPD 4 0 21 116 p een EE EE ee ee ee oS eee IOE EEI NT ee NA eee eee 10 U Or IMON aa 12 OFT UM AO Men er a AN E a e a iea a aaa a Ea DA a AN NA PN 15 so oten os 19 NOC SO OO CO nenen tara an ana nen Maan ng beatae anu Se eaten ab aa et mann anang apa Gb an 21 AS CI OV OUO CO obi en on en ten nana Rea ob e ne aa Eno nana NAS 23 CAIN AION MENU ana NN E AN EA AN AN E PE EN AN PAN NA SA AN BAN 24 PE SCA ONS MN Maan AB NT SA AN DP NN TA TP DA 25 Quick set up For a quick set up the minimum set of information can be obtained from sections e Supply voltage and earthing on page 7 e Signal connections on page 8 e Quick configuration menu on page 12 Manufacturer Nokeval Oy Yrittajakatu 12 FIN 37100 Nokia Finland Introduction Tel 358 3 3424800 Fax 358 3 3422066 email support nokeval com WWW http www nokeval com ORDERING Ordering Example 1000F4 2012KCI RS DI8 48 230VAC The order code consists of several parts The first part describes the large display type the next parts define the card types up to three cards and the last part describes the supply voltage Large display type Nokeval has four cases for large field displays These are 575 Five 57 mm digits plastic enclosure 1000 Three to four 100 mm digits steel 1100 Five to six 100 mm digits steel 1800 Three to five 180 mm digits steel The letter F after the case size tells the
5. will produce a test pattern not until exit from the menu command for the Lo calibration item With MekuWin use the L button With buttons make sure that Lo is in display not the value and press and hold gt and then press and release them both The new value is displayed Check that it is within the limits Exit with To recalibrate the high end feed 8 000 V and do the same for the Hi item Finally exit and save Analog inputs 2012KCI Nominal signal Measmt range Calibr accuracy Thermal drift Overvolt protect Overvolt category 2 to 8 VDC 1 11 V or wider 5 mV 1 mV C 32 VDC VAC line to line Not rated analog and digital inputs must not be connected Digital inputs 2000 DI8 Input type Active low internal pull ups 10 kohm to 5 V Active state range 0 2V Passive state range 4 32 VDC Overvolt protect 32 VDC VAC Serial communications 2000 RS Buses Protocols Baud rates Parity Response time RS 232 and RS 485 Nokeval SCL Modbus RTU Ascii 1200 2400 4800 9600 19200 38400 57600 SCL 8N1 Modbus 8E1 500 ms Power supplies 24VDC model Nominal voltage Voltage range Power Pre fuse 24 VDC 20 32 VDC or 20 28 VAC lt 15 W gt 2 AT not required 48 230VAC model Nominal voltage Enclosure Dimensions Specifications 48 115 or 230 VAC See chapter Installing 25 Max cable length Sample rate Max cable length Isolation Max ca
6. AVP together CTYP A should appear in the display Select AV the slot where the card lies and push gt Check that the User interface 14 then there are no messages If happens try AV to see if there are several messages Exit with The possible diagnostic messages are AD Error A D converter is not working Needs service byte value corresponds to the card type according to the table and if not edit the value Exit with 2012 33 2000 RS 17 2000 D18 53 2000 BCD 52 CONFIGURATION MENU This chapter describes the contents of the configuration menu How to access the menu using the small display and buttons inside the case see chapter User interface How to access them using the Mekuwin software see Mekuwin user manual The configuration menu is divided into four submenus one for the display one for the analog Configuration menu 15 inputs one for the sling display and one for the serial communications How these blocks operate see chapter Operation For scaling the inputs only a Quick configuration menu can be used see chapter User interface section Quick configuration menu Display submenu Display Mode Defines how the display behaves in the normal state There are three options e Single The display shows input 1 reading and does not care about the channel select digital inputs This mode is used when there is only one input signal connected e M
7. RS card must be installed Ascii protocol Send the desired display message as is terminated with CR LF or both The display unit will never respond The message is displayed in the 6 digit small display and also in the large display If the large display has less than 6 digits the first characters will not appear in the large display CALIBRATION MENU The calibration menu is for factory calibration and settings and should be accessed only when necessary To enter the calibration menu from the small display press amp 4 one second until Conf is Contents of the menu e SN Serial number of the device Can not be altered by user May not be factory set e INTI Submenu for input channel 1 calibration e IN2 Submenu for input channel 2 calibration Calibrating the inputs Recalibration is very seldom needed If the measurement reading is significantly wrong the problem is most often somewhere else or the device is damaged In each submenu there are two items Lo and Hi The Lo value should be 0 05 0 10 and the Hi value 0 25 0 35 To recalibrate the low end feed a precise 2 000 V voltage to the appropriate input and give a Lock Calibration menu 24 displayed Select v Cal and push gt Enter code v gt v v SN should be displayed The menu can also be accessed with MekuWin e IN3 Submenu for input channel 3 requires two 2012 cards e IN4 Not used e Disptest If enabled the display
8. User manual arses E 2012KCI Weighing display Nokeval INTRODUCTION 2012KCI is an input card specially designed for Konecranes It can be placed in any of Nokeval F series large displays like 1000F4 The card provides two 2 8 V analog input channels The upper end of these can be scaled freely and independently on each channel Optionally the input card can be companioned with another input card forming a third analog input The channels can be tared with a digital input There is also one digital input that can be used to show Fit in the display A sling select switch position can be indicated with 16 freely programmable display texts The switch is read via four digital inputs Whenever the sling Table of contents switch position is changed the corresponding text is displayed for a while Each input can be enabled or disabled by a digital input and the sum of the enabled inputs is displayed The display unit can be equipped with a serial communications card providing a RS 232 anda RS 485 port Nokeval SCL and Modbus RTU protocols are supported The card allows reading the analog and digital inputs If configured so 2012KCI does not update its display at all but allows the display to be controlled over the serial bus The wide power supply range 41 265 VAC will cover most applications making ordering simpler MOCC IO Eee eee nee en eee ee ee ee eee ee ee eee ee eee eee eee eee ee eee 2 STN E ET Nat Na
9. be replaced with a minus sign When editing a string there are two modes moving mode and editing mode Button P switces between these modes In moving mode AV can be used to move the cursor The display may scroll when going beyond the ends if the string is longer than the display In editing mode the character at the cursor can be changed with buttons AV Available are Ascii characters 32 94 and a terminating character which is indicated as three stacked dashes The string is ended with a terminating character Space Ascii 32 is indicated as underscore To exit push Exiting When all settings are done exit from the configuration menu with key Two options are shown Save to keep the settings made and Undo to discard all changes Select AY Save or Undo and push Or push gt to get back to the menu User interface 13 Monitor state Monitoring can be used to examine some internal readings The built in monitoring is started by pressing and V together Select the item using AY keys and finally exit with The last item is Diag that can be used to see diagnostic messages Push If nothing happens Card type programming Each of the supported card types has one byte stored in its EEPROM chip so that the microcontroller can recognize the card These bytes are factory set and should need no attention However the method to check and edit the byte is shown In the normal state press
10. ble length Overvolt protect Isolation Voltage range Frequency Power Pre fuse Protection Protection SPECIFICATIONS to a voltage more than 50 VAC or 120 VDC with respect to ground 30 m 4 Hz each channel 30 m Isolated from the power supply but shares a common ground with the analog inputs RS 485 1000 m RS 232 10 m 15 V line to line 1 kV line to ground Isolated from the analog and digital inputs and the power supply 41 265 VAC or VDC 45 65 Hz lt 25 W gt 1 AT not required Enclosure Class 1 protective earth Inputs Class 2 reinforced insulation IP65 Regulations EMC immunity EN 61326 ESD 61000 4 2 4 kV contact criterion B EM field 61000 4 3 10 V m criterion A analog inputs may deflect 0 1 of range Burst 61000 4 4 any port 2 kV criterion B Surge 61000 4 5 power supply 1 kV line to line 2 kV line to ground criterion A Specifications 26 61000 4 5 signal ports not applied short distance wires Conducted RF 61000 4 6 any port 10 V criterion A analog inputs may deflect 0 1 of range EMC emission EN 61326 RF emissions CISPR 16 class A AC mains CISPR 16 class A Electrical safety EN 61010 1
11. closed Close with Num180 OUV00 a 1000FBAS230 V1 1 48 230V models after June 2009 at J5 J1 The DIP switch positions read from top downwards K2 2 means the second switch of K2 Displaytype K1 K22 575F 8 5V ON ON ON OFF 1000F 1100F 1800F 12V OFF ON ON ON K2 3 and K2 4 should always be ON 1000FBAS230 V1 1 does not require an auxiliary power supply even at 1800F6 The middle pins of the microcontroller programming connector ISP have to be shorted with a 2mm jumper Installing 6 Supply voltage and earthing 24VDC model Main case Earthing 9 Ia baa Electronics unit gt VAC T E Any polarity Ribbon cable to the digits Small display buttons Two cable glands Bring the supply voltage to the connector indicated in the picture It is recommended to earth the enclosure using the M4 screw provided for additional protection against disturbances A pre fuse is not necessary but if one is used it should be at least 2 AT 48 230VAC model Main case Earthing E AN an Wi u y Hectronics unit 48 115 o0r230 VAC Bring the Live and Neutral wires to the electronics unit as in picture A pre fuse is not necessary but if one is used it should be at least 1 AT Connect the Protective Earth wire to the M4 screw using the Faston connector provided a Faston crimping tool is needed For electrical safety the p
12. d C3 ChSelect3 Enables channel 3 to be calculated in the sum displayed C4 TareSw Tares the inputs Requires that configuration setting Inputs TareEnable is switched on C5 SlingSwO Lowest bit of the sling select switch C6 SlingSw1 C7 SlingSw2 Py C8 SlingSw3 Highest bit of the sling select switch These are active low inputs suitable for NPN type outputs or relay or switch contacts The display unit pulls them to 5 V and detects if they are externally pulled to 0 V The negative common end of the switches is connected in 2012KCI card terminal 3 Installing 8 Moreover the 2012KCI card in slot A has one digital input terminals 6 signal and 3 common Activating it will make the display to show Fit instead of the weighing readings Configuring The display unit may be configured either on the small display and buttons inside the main case or via a serial bus if equipped with a serial communications card It is also possible to attach a programming cable to the input card Inside buttons Open the main case as explained above Use the small display and four buttons to configure the display unit Using the buttons is explained in chapter User interface Via serial bus If the display unit is equipped with a serial communications card the configuration may be done via the RS 232 or 485 bus If the unit is configured for Nokeval SCL protocol then MekuWin software is needed available for Microsoft Windo
13. e is used for characters Within one Modbus register the data is represented the most significant byte first MSBF big endian voltatile EEPROM memory immediately The maximum Modbus frame length is 100 bytes This sets the limit to the number of registers accessed with commands 3 and 16 Holding registers Register Name Tipe vaus 10 17 Remote display contol FLOAT 2014 __ Confnputs TareEnable BOOL Modbus protocol 21 2051 2054 Conf Sling T9 STRINGZ Len 8 2079 YTE 2082 ConnSeriaAddress BYTE In the Remote mode the display may be controlled by writing Ascii characters and a terminating zero byte to holding registers 0 3 Alternatively by writing a floating point number to registers 10 11 2012KCI will format the number to the display using the number of decimals selected in the configuration menu Inputs Dec The input registers 0 11 are phantomed in holding registers 5000 5011 for applications that can not access the input registers Input registers Mon GhSelect BYTE Discrete input registers Enum explanations Table E1 Value Mode o Single Table E2 ea i o Zero oT 6 a a Modbus protocol 22 Table E3 o fsa Table E4 1200 e 57600 ASCII PROTOCOL When the display unit has been configured to use the Ascii protocol Conf Serial Protocol and Remote mode Conf Display Mode the display can be controlled with simple Ascii messages A 2000
14. ekuwin configuration software SCL protocol 20 Supported commands e 2 Read Discrete Inputs reading the digital inputs e 3 Read Holding Registers reading the configuration settings e 4 Read Input Registers reading the readings e 6 Write Single Register changing the configuration settings e 16 Write Multiple registers changing the settings e 17 Report Slave ID checking the device type e 109 Meku Mekuwin configuration software uses this This transmitter uses always even parity 8E1 Serial bus address may be selected 1 247 When the settings are changed by writing a Holding register the settings are stored to the non MODBUS PROTOCOL The command 17 will return 0x11 lt byte count gt 0x00 OxFF followed with 2012KCI V1 1 A123450 for example When the serial connection settings are changed the changes do not affect until the transmitter is powered down This is to prevent breaking the connection while making the changes Data types e BOOL Off on setting O False 1 True in the lower rightmost byte e BYTE One byte setting Only the lower rightmost byte of the Modbus register is used e WORD 16 bit setting e ENUM Option list setting The options listed in section Enum tables e FLOAT 32 bit floating point number IEEE 754 Least significant word first LSWF little endian e STRINGZ Zero terminated string The terminating character may be missing when the whole spac
15. filter reduces noise and fast fluctuations and should be used only if these are visible The filter is bypassed for a couple of seconds after power up The reading is then multiplied by a user settable Inputs Hi1 to Hi3 coefficient to get the engineering reading in desired units which may be kg tons Ibs or any If the taring function is enabled Inputs Tare Enable the Tare value is subtracted from the reading The current non tared reading can be copied to be the tare value by using digital input C4 on a digital input card 2000 DI8 Minimum pulse width needed is 100 ms and the taring is performed only once after the digital input is activated keeping the input active will not cause successive tarings The tare value is stored in an EEPROM memory and will be retained even if Operation 10 Scaling ChSelect1 ChSelect2 Input2 D ChSelect3 Input3 Dead Display a 123 4 power supply is cut off Every input channel has independent tare value memory Display There is three display modes to select of In Single mode only input channel 1 reading is displayed This mode is used when only one input is used In Multi mode three digital inputs are used to select one or more channels the sum of the selected channels is calculated and this sum is displayed The selection is done via digital inputs C1 C3 located on the optional 2000 D18 card If none of the channel select inputs is active the N
16. iguration menu Press until Mode is displayed to enter the quick configuration menu Select the item by using buttons AV To see or edit a value push P To edit the value see the subsection Editing in the section Configuration state below The items in the menu are e Mode Select Single for a single channel display or Multi for a multi channel display Configuration state Entering Press the and A keys simultaneously two seconds in the normal state to enter the configuration state When entered the Conf led will light User interface 12 e Hi 1 First input channel scaling the displayed reading at 8 V input e Hi 2 Second input channel scaling visible only in Multi mode e Dec How many digits to show after the decimal point To exit push repeatedly until Save is displayed and then once more Navigating The menu is organizated hierarchically You can move within one menu using the AV keys and enter a submenu with the P key Returning from a submenu is done with the key The menu contents is described in chapter Configuration menu Editing To see or edit a setting value press gt key Most data types are edited simply with AV keys finally exiting with key Floating point values such as scaling and the lopass filter are edited with AV keys select digit to edit blinking with gt and change it with AV When the decimal point is blinking it can be moved with AV The first digit can
17. o edit them using the pushbuttons requiring a person with good nerves Time When the switch position is changed the corresponding sling text is displayed for a while The text is also displayed after power up The display time is defined by Time setting in the Sling submenu Adjustable 0 10 seconds If the sling display is not desired at all set Time to 0 Serial Serial communications setup Visible only if a 2000 RS card is installed Display Protocol rns protocols Nokeval SCL Modbus RTU and Ascii These are described in the chapters of their own Baud Available baud rates Configuration menu 18 1200 2400 4800 9600 19200 38400 57600 Address Slave address of this device On SCL use addresses 0 123 This device will always respond in address 126 too On Modbus use 1 247 SCL PROTOCOL SCL is a protocol used in Nokeval products The commands and responses are in a human readable text format but the frames are formed using non readable bytes Commands TYPE Returns the model name and software version 2012KCI V1 1 without the quotation marks SN Returns the serial number e g A123456 MEA CH 1 Returns the scaled reading of input 1 All the registers can be read this way The response consists of characters 0123456789 The scientific notation e g 1E3 is not used The reading is represented with five significant digits except negative readings wi
18. oChs setting in the configuration menu defines what is displayed In Remote mode the display may be controlled via an RS 232 or RS 485 bus a serial communications card 2000RS is required There is a Safety timer if the display is not remotely updated every 10 seconds dots will be displayed The Dead function may be used to round the display reading to zero when the actual reading goes below a user selected threshold Sling The position of the sling switch may be wired to this display with four digital lines These form a four bit word allowing 16 different positions There is possible to program a text corresponding each position After power up and every time the switch position is changed the associated sling text is displayed for a user selectable time O to 10 seconds Using the sling requires the digital input card 2000 D18 using its terminals 4 7 The sling position inputs are debounced as a group the new position is accepted when all the Operation 11 four lines have retained the same state at least 80 ms Fit switch The input card 2012KCI has one digital input Closing a switch connected to it will make the display to show FIt except in Remote state Serial communications The RS 232 and RS 485 serial ports allow controlling the display reading the analog inputs reading the digital inputs and changing the configuration settings USER INTERFACE This chapter describes how to use the small
19. ot and a comma are adopted to the previous character where possible e g DISP 1 2 will use only 2 digit positions on the large display because the dot will be presented on the same digit position as number 1 To Know how many digits there is in the large display you may use command DISPMODE OUT CH 1 value Displays a numeric value The display unit must be in the remote mode The value is first interpreted as a 32 bit floating point value and then reformatted to the display right aligned and using the number of decimals that is selected in the configuration menu Inputs Dec This is usable if the remote device does not want to bother with formatting its reading to be displayable DISPMODE mode Selects the display mode This is the same as the setting Display Mode in the configuration mode Changing the mode with this command affects immediately but the change will not be saved in EEPROM and is not retained if power is cut off The modes available are M Description 0 Single input channel 1 always displayed Multi sum of channels selected by the 1 digital inputs are displayed Remote the display may be controlled remotely with DISP or OUT CH 1 2 commands DISPMODE Returns the selected display mode as a number and the number of digits on the large display separated by one space The response may be e g 1 4 for Multi mode and four digits MN xxxxx Commands used by the M
20. ower and signal wires must be fastened using cable ties or equivalent so that if one Signal wire is detached it can not touch any of the power supply wires or vice versa Installing 7 Signal connections Slot A sce 2012KCI ol a Fit switch D1 SlingSw3 e oO SlingSw2 2 DO Y P SlingSw1 P Input 1 2 8 V Common SlingSwO Common TxD TareSw 2 2 ChSelect3 t2 2 8 V C N kia _ 2 ChSelect2 RxD ChSelect1 2012KCI The 2 8 V analog signals are connected in slot A terminals 4 channel 1 and 2 channel 2 The negative wire is connected in terminal 3 common The third analog input is connected in slot B terminals 4 signal and 3 common if the unit is equipped with two 2012KCI cards Serial communications The RS 485 bus is connected in slot B terminals 6 D1 or or Nokeval A 5 DO or or Nokeval B and 4 common if equipped with a serial communications card See also jumpers above The D1 and DO should be of a twisted pair while the common wire may be anything The cable should be shielded and the shield earthed at one end only Digital inputs The digital input card is usually in slot C The lowest terminal nearest to the bottom of the main case is 1 The digital inputs have the following usage Terminal Name Description C1 ChSelect1 alas channel 1 to be calculated in the sum displayed Works in Multi mode only C2 ChSelect2 Enables channel 2 to be calculated in the sum displaye
21. rew the four M3 screws that are holding the cover on its corners If the unit has to be detached unscrew the other screws on its top and bottom sides Normally there is no need to open the electronics unit Caution Opening the electronics unit exposes parts carrying lethal voltages on units powered with more than 24 V supply Installing 4 Jumpers All the jumpers are factory set to serve most of the installation situations and normally need no attention 2012KCI The input card 2012KCI jumpers are factory set However their correct position is shown in the picture 2000 D18 The digital input card 2000 D18 does not have any jumpers 2000 RS The serial communications card 2000 RS has jumpers for RS 485 bus termination and fail safing The factory default is no termination no fail safe which is usable in most situations Only if the RS 485 bus is longer than 50 m the termination should be engaged 2000 RS No term no failsafe Middle of the an bus devices J3 an g Term no failsafe Last device on 7 the bus i Term and FS Last device on the bus if there is no other fail safes Installing 5 1000FBAS24 V1 0 24VDC models The electronics unit base card has jumpers for large display voltage selection They are factory set but still illustrated here Display voltage Num58 Num100 Num180 Aux power supply selection mm 8 7V 9 5V 11 7V jumpers do not matter TE T OL SU Fi soU iS Ne Always
22. th four e g pi would be represented 3 1416 The channels are Ch Description 1 Analog input 1 scaled reading Analog input 2 Analog input 3 Sum of the channels selected with the 4 digital inputs MEA SCAN 1 4 Returns the readings on channels 1 4 separated by one space See MEA CH for channels and data representation DI CH 1 Returns the state of the digital input 1 O if not active 1 if active The digital inputs are numbered SCL protocol 19 SCL uses always 8 data bits none parity and 1 stop bit A more detailed description of the Nokeval SCL protocol can be downloaded from the Nokeval WWW site Ch Terminal Description 1 C1 Channel 1 select 2 C2 Channel 2 select 3 C3 Channel 3 select 4 C4 Tare switch 5 C5 Sling O 6 C6 Sling 1 T C7 Sling 2 8 C8 Sling 3 9 A6 Fit switch In the remote mode the digital inputs may be used for any purpose If the 2000 DI8 card is not installed then only digital input 9 FIt is available DI SCAN 1 9 Returns the states of the digital inputs 1 to 9 separated by one space e g 100010100 DISP text Displays any text The display unit must be in the remote mode The string is displayed starting from the leftmost digit If less characters are sent that there is in the large display the rest of the display is blanked If more is sent the extra characters are abandoned A d
23. type of the internal electronics The number after the letter F defines the number of display digits Input card type These large displays use Nokeval 2000 series input cards A custom input card 2012KCI has been designed for KCI In addition two older cards 2011KCI and 2211KCI have been used Other cards 2000 D18 card provides eight digital inputs They are used to select input channel to be displayed to tare the inputs and to read the sling switch In the order code this card is expressed as DI8 only 2000RS is a serial communications card allowing RS 232 and RS 485 communication with the display unit In the order code it is expressed RS If three analog inputs are desired the display unit can be equipped with two 2012KCI cards The order code is then 1000F4 2012KCI 2012KCI DI8 230VAC for example Ordering Power supply options The large field displays are available with two power supply options Name Voltages 24VDC 24 15 VDC or VAC 48 230VAC 41 265 VDC or VAC In some cases the internal electronics unit is not capable of powering the large digits In this case there is an auxiliary power supply fitted inside the case This does not affect the order code Most common models 1000F4 2012KCI RS DI8 48 230VAC four 100mm digits 2 inputs serial comms digital inputs power 48 to 230 VAC 1000F4 2012KCI 2012KCI DI8 48 230VAC four digits 3 inputs digital inputs power 48 to 230 VAC
24. ulti The display shows the sum of the selected channels The selection is made via three digital inputs on the 2000 DI8 card Configuration menu 16 e Remote The display is controlled via a serial bus If the display contents is not updated within 10 seconds via the serial bus points are displayed Digits The number of digits in the large display Selectable between 3 and 6 NoChs What is displayed in Multi mode when no channels are active This setting is visible only when Mode Multi e Zero Displays the sum of the selected channels which is always zero e Dot One decimal point is displayed otherwise the display is empty e Dashes is displayed e Blank The display is totally blank Inputs submenu Dec Defines how many digits after the decimal point should be displayed If set negative the corresponding number of digits before the decimal points is rounded to Zero TareEnable The table below shows how a reading of 123 45678 is displayed on various Dec values Dec Display Notes 3 0 Rounded to nearest 1000 2 100 Rounded to nearest 100 1 120 Rounded to nearest 10 0 123 Integer 1 123 5 One digit after point 2 123 46 3 123 457 Hi1 Hi2 Hi3 Scalings for the analog inputs When the input signal is at its maximum 8 volts the reading for Sling The Sling menu is visible only when a 2000 DI8 card is installed
25. ws Select the same protocol baud rate and address in both MekuWin and the display unit Installing If the unit is configured for Modbus protocol then the configuration may be changed using Modbus Holding register functions or alternatively with Mekuwin again Via a programming cable If the display unit is not equipped with a serial communications card a programming cable may be used The cable is attaced to a pin header marked POL on the input card in slot A To access It both the main case and the electronics unit cover have to be opened Removing the electronics unit cover exposes parts carrying lethal voltages on units with supply voltage more than 24 volts Nokeval provides two alternative programming cables POL RS232 for RS 232 port and DCS772 for USB port In addition an adapter for the pin header called POL 3PIN is required A free software MekuWin is used Select SCL protocol 9600 baud and address 0 or 126 OPERATION A D conv Calibr Lowpass Input SlingO Sling1 Sling Sling2 logic Sling3 FitSw Fit Input processing The two or three inputs are measured using an analog to digital converter The reading is scaled to O 1 using factory adjusted calibration values so that O corresponds to the lowest input signal 2 V and 1 corresponds to 8 V This reading is lowpass filtered on each channel independently if the lowpass filter is enabled in the Conf menu Inputs Lopass The lowpass
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