user`s manual programmable digital panel indicator
Contents
1. 14 Table 1 continuation LEd1 Support of the alarm signalling On support switched on LEd2 nthe situation when the function OFF support switched off of support is switched on after the with drawal of the alarm state the signalling diode is not blank It signals the alarm state till the moment of its blanking by means of the combination of keys This function only and exclusivey con cerns the alarm signalling and then the relay contacts will act without support according the chosen alarm type tYPA Type of analogue output PrAd current nAP voltage AnL Lower threshold of the analogue In the 4 digit execution output 1999 9999 It is the parameter defining the value In the 5 digit execution on the display for which we want 19999 99999 obtain 0 on the analogue output AnH Upper threshold of the analogue In the 4 digit execution output 1999 9999 It is the parameter defining the value In the 5 digit execution on the display for which we want 19999 99999 obtain the max value 20 mA or 10 V on the analogue output bAuD Baud rate of the RS 485 interface 2400 2400 bps 4800 4800 bps 9600 9600 bps trYb Kind of transmission through the OFF interface switched off RS 485 interface A8n1 ASC 8N1 ATE1 ASCII 7E1 701 ASCII 701 r8n2 RTU 8N2 r8E1 RTU 8E1 r801 RTU 801 Adr Device address 0 247 15 Table 1 continuation Par2. 16 Table 1 continuation FFOr Format of the transmitted register by Where 32b 16b 325 320 the MODBUS protocol 3210 as the first oldest byte is sent or the byte including the character and exponent 1032 words with exchanged places 0123 float transmitted in inversed sequence 2301 returned bytes in words Where TrEJ 16U or 16S 0010 as first the oldest byte is transmitted 0001 as first the youngest byte is transmitted SEt Writing down of manufacturers A pressure of the key settings causes the writing down of standard Parameter values set up by the manu parameters into the meter The exe facturer are shown in the table 2 cution of this operation is signalled by the inscription End SEC Introduction of a new password In the 4 digit execution 1999 9999 In the 5 digit execution 19999 99999 tst Display test The test consists on the The pressure of the key consecutive switching of digital display causes the test switching on The segments on Alarm diodes and key ends the test highlighting diodes of the unit should flicker The continuous lighting of the alarm diodes signals that the relay is switched on JEd Unit highlighting switching on On highlighting switched on OFF highlighting switched off Exit from the parameter group of the chosen level The pressure of the key causes the exit from the parameter group of the chosen
3. 43 SALES PROGRAMME MEASUREMENT DIGITAL and BARGRAPH PANEL METERS CONTROL MEASURING TRANSDUCERS ANALOG PANEL METERS DIN INSTRUMENTS RECORDING ANALOG and DIGITAL CLAMP ON METERS PROCESS and HOUSEHOLD CONTROLLERS CHART AND PAPERLESS RECORDERS POWER CONTROL UNITS and SOLID STATE RELAYS AUTOMOTIVE DASHBOARD INDICATORS 1 PHASE AND 3 PHASE WATT HOUR METERS NUMERICAL AND ALPHANUMERICAL LARGE SIZE DISPLAYS ACCESSORIES FOR MEASURING INSTRUMENTS SHUNTS AND MODULES MEASURING SYSTEMS ENERGY HEAT CONTROL CUSTOM MADE ELECTRONIC SUBASSEMBLIES ACC TO ORDERS WE ALSO OFFER OUR SERVICES IN THE PRODUCTION OF W ALUMINIUM ALLOY PRESSURE CASTINGS PRECISION ENGINEERING AND THERMOPLASTICS PARTS PRESSURE CASTING DIES AND OTHER TOOLS W CUSTOM MADE ELECTRONIC SUB ASSEMBLIES QUALITY PROCEDURES According ISO 9001 and ISO 14001 international requirements All our instruments have CE mark For more information please write to or phone our Export Department LUMEL Lubuskie Zaktady Aparat w Elektrycznych LUMEL S A ul Sulechowska 1 65 022 Zielona G ra Poland Tel 48 68 329 51 00 exchange Fax 48 68 329 51 01 e mail lumel lumel com pl http www lumel com pl Export Department Tel 48 68 329 53 02 or 04 Fax 48 68 325 40 91 e mail export lumel com pl N12 07C 4
4. PrH parameter and introduce the value 199 pass on the tYP parameter and choose the function nor Example 4 Programming of an alarm operating in the given interval with delay If we want that the alarm 1 is to be switched on in the interval from 100 up to 300 and is to operate only after 10 transmitted values one must e enter into the programming mode and choose the ALr1 level pass on the PrL parameter and introduce the value 100 39 pass on the PrH parameter and introduce the value 300 passon the tYP parameter and choose the On function passon the dLY parameter Assuming that the Cnt parameter has not been changed and is equal 1 acc the manufacturer setting after the dLY parameter we must introduce the value 10 If e g Cnt 2 then dLY 5 e introduce the value 10 under the dLY parameter exit from the programming mode In case of the alarm state duration for a time longer than 10 transmitted values the indicator will switch the alarm relay on and the alarm diode will be lighted Example 5 Programming of an analogue output If we want to program so that to the 0 00 value is to correspond the 4 mA value on the current analogue output whereas to the 20 00 value is to correspond the 20 mA value one must e enter into the programming mode and choose the tYPA parameter responsible for the type of the analogue output Choose the PrAd current output pass on the tYPA parameter responsible for
5. e vesc Jo Aejdsiq 11 Item InP d P Cnt Ind H1 Y1 H2 Y2 No Input Decimal Number of Linear E parameters point averagings characte ristic 1 1 1 1 ALr1 PrL1 PrH1 tYP1 dLY1 LEd1 2 Alarm 1 Lower Upper Alarm Alarm Signal po threshold threshold type delay support ALr2 PrL2 PrH2 tYP2 dLY2 LEd2 3 Alarm 2 Lower Upper Alarm Alarm Signal threshold threshold type delay support Out tYPA AnL AnH bAud trYb Adr toUt 4 Output Kind of Lower Upper Baud Kind of Device Time output threshold threshold rate transmis address limit 77 volt cur analog analog sion outpu output OPt sour dAdr drEJ trEJ FFOr 5 Options Kind of Device Register Register Register ___ indicator address address type format work SEr SEt SEC tSt JEd 6 Service Writing of Password Display High ae standard introduct test ligted parameters unit 2 Concerns only SOUr bUS or nnAS 1 Exists only when the individual characteristic is attached Ind 0 2 Exists only in the 5 digit executions 12 Fig 5 Transition matrix into the programming mode Way of changing the value of the chosen parameter In order to increase the value of the chosen parameter one must press the 4 Asingle pressure of this key causes a value increase of 1 The hold of the pressed key causes continuous in
6. of alarm 1 sig nalling no occurs 1 w t 19999 99999 Value 0 Support switc ed off Support switcl ed on Lower threshold of alarm 2 w t 19999 99999 Change of range as for the H1 arameter Upper threshold of alarm 2 Change of range as for the H1 Type of alarm 2 arameter 0 99999 Normal Switched on Switched off Manually swi ched on Manually swi Delay of alarm 2 ched off Value 0 9999 4 digit 0 99999 5 digit Support of alarm 2 sig no occurs 1 no occurs 1 no occurs 1 Value 0 Support switc ed off 1 Support switc ed on Type of analogue output 28 Value 0 Current 1 Voltage 19999 99999 Lower threshold of the analogue output w t 19999 99999 Change of range as for the H1 parameter Upper threshold of the analogue output no occurs 1 Change of range as for the H1 parameter Switching on or switching off on the unit highlighting Del_min Value 0 Highlighting switched off 1 Highlighting switched on Occurs only in 5 digit meters Erasing in of the minimal value Del_maks Value 0 Lack of operation Erasing of the minimal 1 value Erasing in of the maksimal value Synoptic no occurs 1 no oc
7. 9999 5 digits execution Individual characteristic Value 0 Character switched off 1 Character switched on Parameters of the individual characteristic 19999 99999 Value 1999 9999 4 digit indicators 19999 99999 5 digit indicators The range of H1 H2 Y1 Y2 PrL1 PrH1 PrL2 PrH2 AnL AnH parameters depends only the set up decimal point d P The writing of the value with a higher number of significant places after the decimal point will cause its round off Values beyond the range cause the return of the error code 03 not allowed data value Parameters of the 19999 99999 individual characteristic Value 1999 9999 4 digit indica 19999 99999 5 digit indical Change of range as for the H1 Parameters of the individual characteristic Change of range as e H1 paramel 9999 99999 Parameters of the individual characteristic Change of range as for the H1 paramel 9999 99999 ccurs 1 9999 99999 Lower threshold of alarm 1 Change of range as for the H1 paramel 9999 99999 Upper threshold of al Change of range as for the H1 Type of alarm 1 Norma Switched on Switched off Manually switched on Manually switched off 0 99999 Delay of alarm 1 Value 0 9999 4 digit 0 99999 5 digit Support
8. PROGRAMMABLE DIGITAL PANEL INDICATOR N12B TYPE USER S MANUAL PROGRAMMABLE DIGITAL PANEL INDICATUR N12B TYPE USER S MANUAL CONTENTS 1 APPLICATION eene 5 2 BASIC REQUIREMENTS OPERATIONAL SAFETY 6 3 FITTING 6 4 CONNECTION neni ass 7 5 OPERATION ii nine HE e ents 7 6 PROGRAMMING sssse e 10 7 RS 485 INTERFACE sse 20 7 1 Connection way of the serial interface 20 7 2 Description of the MODBUS protocol implementation 22 7 3 Description of used functions 22 7 4 Register map of the N12B 25 7 5 Registers for writing and 26 7 6 Registers only for 32 8 TECHNICAL DATA iio 35 9 BEFORE A FAILURE WILL BE DECLARED 37 10 PROGRAMMING EXAMPLES OF N12B INDICATORS 38 11 EXECUTION CODES eee 41 12 MAINTENANCE AND 42 1 APPLICATION N12B programmable digital panel indicators are destined to be installed in synoptic panel boards and display the value transmitted by the RS 485 interface The 5 or 4 digit read out field 14 or 20 mm high digits in red or green colour ensure
9. X Introduce the unit symbol which is to be highlighted The code number is established by the manufacturer 41 Order example N12B 4 1 1 0 00 7 means a N12B indicator for synoptic panels with 4 displays in green colour voltage supply 230 V a c d c kind of terminal socket plug with screw con nection standard execution with a quality acceptance test In case of any meter failure one must contact the nearest authorized service workshop 12 MAINTENANCE AND GUARANTEE The N12B indicator does not require any periodical maintenance In case of some incorrect unit operations 1 From the shipping date during the period given in the annexed guarantee card One should take the instrument down from the installation and return it to the Manufacturer s Quality Control Dept If the instrument has been used in compliance with the instructions the Manufacturer guarantees to repair it free of charge 2 After the guarantee period One should turn over the instrument to repair in a certified service workshop The disassembling of the housing causes the cancellation of the granted guarantee Spare parts are available for the period of ten years from the date of purchase The Manufacturer s policy is one of continuous improvement and we reserve the right to make changes in design and specifica tions of any products as engineering advances or necessity requires and revise the above specification without notice 42
10. ameter E symbol Description Range of changes ToUt Waiting time limit to obtain information In the 4 digit execution in seconds after which have to be displayed on the display The write of the 0 value will cause the switching parameter action off In case when SOUr nnAS the write of the 0 value will cause the index operation switching as master off Choice of indicator kind of work 0 999 9 In the 5 digit execution 0 9999 9 SOUr Syn display of value transmitted through the interface to the register 7648 BUS interception and display of the register value from the device connected to the bus interception parameters are set in ToUt Dadr DrEJ TrEJ FFOr nnAS indicator work as master Pa rameters of the questioned device are set in ToUt Dadr DrEJ TrEJ FFOr DAdr Device address from which the regi 1 247 this address must be diffe ster value has to be intercepted or the rent from the indicator address itself address of the questioned device DrEJ Register address to intercept or In the 4 digit option 1 9999 question In the 5 digit option 1 65535 TrEJ Type of intercepted or questioned 32b 32 bit registers of float type register 16b 2x16 bit registers of float type 32S 32 bit registers of signed long type 32U 32 bit registers of unsigned long type 16S 16 bit registers of signed int type 16U 16 bit registers of unsigned int type
11. bus protocol Value For trEJ 0 1 2 3 0 3210 as the first the oldest byte or the byte including the character and exponent is sent in case of float type 1032 words changed in places 0123 float sent in inversed sequence 2301 bytes inversed in words Dla 4 or 5 10 as the first the most significant byte to sent 01 as the first the less significant byte to sent For SoUr 0 or 1 The waiting time limit to obtain information in seconds after which 0 9999 9 are displayed For SoUr 2 Interval time between asking frames sent from the device in Master mode Value 0 999 9 4 digit indicators 0 9999 9 5 digit indicators Caution For SoUr 0 or 1 The write of 0 value will cause the switching of the parameter operation off For SoUrz2 The write of 0 value will cause the switching of master device off In case of registers no occurring the indicator their values are equal 1E 20 31 7 6 Registers only for read out cas e 5 5 E Name Unit Quantity name 22248 e 5 S 2990 ag S8 pm eB Esess 2 2 7000 7500 Identifier Constant identifying the device 0x65 N12B 7002 7501 Status E Status is the register descri ing the current state of the indicator It is the register describing the 7004 1502 Contro
12. cally carry out the change into the minimal value Similarly in case when the introduced value exceeds the lower range of changes given in the table 1 the indicator will automatically carry out the change into the maximal value Standard parameters of the indicator Table 2 Parameter symbol Level in the matrix Standard value dP 0 00 Cnt Ind H1 Y1 H2 Y2 PrL1 PrL2 19 99 or 199 99 PrH1 PrH2 99 99 or 999 99 tYP1 tYP2 OFF dLY1 dLY2 0 LEd1 LEd2 OFF tYPA PrAd AnL 19 99 or 199 99 AnH 99 99 or 999 99 bAud 9600 trYb r8n2 Adr 1 toUt 10 0 19 Standard parameters of the indicator Table 2 continuation Parameter symbol Level in the matrix Standard value SOUr SYn dAdr 2 drEJ 7505 trEJ 32b FFOr 3210 7 RS 485 INTERFACE N12B programmable digital indicator series have their serial link in the RS 485 standard to communicate in computer systems and with other devices fulfilling the Master function The MODBUS asynchronous charac ter communication protocol has been implemented on the serial link The transmission protocol describes the ways of information exchange between devices through the serial link 7 1 Connection way of the serial interface The RS 485 standard enables the direct connection to 32 devices on a single serial link of 1200 m long For the connection of a greater quantity of devices it is necessary to apply additional inter
13. crease of the value down to the display of the 0 value The jump to the next digit follows after this value The further change is similar In any moment the key release causes a jump to the first digit It is similarly in case of the value decrease A single pressure of the key causes a value decrease of one The hold of the key pressure down causes a continuous decrease of the value down to the display of the O value The jump to the next digit follows after this value The further change is similar The key release in any moment causes a jump on the first digit In order to accept the set up parameter one must press the key Then the writing of the parameter and display of its symbol follows alternately with the new value The pressure of the key during the change of the parameter causes the resignation of the saving Table 1 Description Range of changes Setting of the decimal point This Optional setting acts both when the individual characteristic is switched off and when the characteristic is switched on Number of averages of transmitted In 4 digit execution 0 9999 values In 5 digit execution 0 99999 The inscription of 0 cause the blanking of the display Switching off or on of the user s ON Characteristic switched on individual linear characteristic OFF Characteristic switched off 13 Table 1 continuation Parameter inf symbol Description Range of changes H1 Y1 Paramet
14. curs 1 no occurs 1 no occurs 1 no occurs 1 no occurs 1 Value 0 Lack of operation Erasing of the maximal 1 value Value to display on the display 7649 no occurs 1 The range of this parameter only depends on the set up decimal point d P The writing of the value with a greater number of significant places after the decimal point will cause its round off Values beyond the range cause the return of the error code 03 not allowed data value The number value for this register must be included in the interval from 8388608 to 8388608 Choice of kind of indicator work Value 0 Display of transmitted value hrough the interface into he register 7648 nterception and display of he register value from the device connected to the bus Caution he indicator intercepts response frames code 03h transmitted to the master device he indicator works as Master Device address from which the register value is to be intercepted or the device address to ask Caution The address must be different from the indicator address Register address to intercept Value 1 9999 igit indicator 1 65536 igit indicator Type intercepted or asked address Value 32 bit float type 2x16 bit float type 32 bit signed long 32 bit unsigned long 16 bit signed int it unsigned int 30 Format of sent register by the Mod
15. duced security code Exceeding of the upper measuring range A Exceeding of the lower measuring range Exceeding of the waiting limit time for information 6 PROGRAMMING The key pressure and its holding down during ca 3 seconds causes the display of the security code symbol SEC alternately with the O value set up by the manufacturer The writing of the correct code causes the entry into the programming matrix The transition matrix into the programming mode is shown on the fig 5 We choose the level by means of the key whereas the entry and moving through parameters of the chosen level is carried out by means of the CY and keys Parameter symbols are displayed alternately with their actual values In order to change the value one must use the key To resign of the parameter change one must press the key To exit from the chosen level one must select the symbol and press the key In order to exit from the programming matrix into measurement one must press the key The inscription HEY occurs and after ca 5 sec the indicator will automati cally enter into the displaying mode of the value transmitted by the RS 485 interface 10 EZLN 40 uonesado py Big Bulwwes6old 1294102 uonduosul 29 Jo ejdsig uiu uononpojjul uueje jo Buise3 jo Buiser3 jo Buisei3 piomssed ejdsiq INIINIANSVIIN C gt
16. e program version are displayed on the display After ca 10 sec the indicator transits automatically into the measuring mode and the input signal value is displayed The indicator blanks automatically insignificant zeros The exceeding of the alarm threshold is signalled by means of alarm diodes 1 and 2 The basic unit of the measured value is automatically highlighted by the indicator a Unit CCEC Ca me Erasing Alarm key Cs CJ E diodes Key to Key to Acceptance decrease increase key the value the value b 1 F a Alarm diodes Erasing key EN C Key to Key to Acceptance decrease increase key the value the value Fig 3 Description of the indicator faceplate a 5 digit execution b 4 digit execution 1 No exist in the 4 digit 20 mm execution 8 Key functions acceptance key entry into the programming mode hold down during ca 3 seconds moving through the menu choice of the level entry into the change mode of the parameter value acceptation of the changed parameter value 4 key to increase the value display of the maximal value entry to the parameter group level moving through the chosen level change of the chosen parameter value increase of the value successive parameter in the monitoring mode Lv key to decrease the value display of the minimal value entry to the parameter
17. e type Description 7000 7200 float 32 bits The value is placed in two successive 16 bit registers Registers include the same data as 32 bit registers from the 7500 area Registers are only for read out 7200 7400 float 32 bits The value is placed in two successive 16 bit registers Registers include the same data as 32 bit registers from the 7600 area Registers can be read out and written in 7500 7600 float 32 bits The value is placed in a 32 bit register Registers are only for read out 7600 7700 float 32 bits The value is placed in a 32 bit register Registers can be read out and written in 25 7 5 Registers for writing and read out N12B indicators ve 16 bit registers Registers include the same data as 32 bit register from The value is placed in two successi the 7600 area The value is placed in 32 bit registers Table 5 Description e e Identifier 0x6504 6505 Device identifer 4 digit execution 5 digit execution no occurs 1 no occurs 1 no occurs 1 no occurs 1 no occurs 1 no occurs 1 no occurs 1 no occurs 1 no occurs 1 no occurs 1 Decimal point 0 99999 4 digits execution 5 digits execution Number of measurements 26 Value 0 9999 4 digits execution 0 9
18. ers of the individual In 4 digit execution H2 Y2 characteristic 1999 9999 On the base of co ordinates of two In 5 digit execution points given by the user the indicator 19999 99999 assigns coefficients of the individual E characteristic a and b Y aH b where H1 and H2 value transmitted by the RS 485 interface Y1 and Y2 expected value on the display PrL1 Alarm lower threshold In 4 digit execution PrL2 1999 9999 In 5 digit execution 19999 99999 PrH1 Alarm upper threshold In 4 digit execution PrH2 1999 9999 In 5 digit execution 19999 99999 tYP1 Alarm type nor normal tYP2 The fig 6 shows the graphical On switched on illustration of alarm types OFF switched off H_On manually switched on till the time of the alarm type change the alarm output is switched on for good H_OF manually switched off till the time of the alarm type change the alarm output is switched off for good dLY1 Delay of alarm operation In 4 digit execution dLY2 The parameter is defined in number of 0 9999 received values i e one must give after m In 5 digit execution how many values from the RS 485 0 99999 interface the alarm operation follows The alarm switching off follows without delay The parameter takes in account the number of averages of Cnt values i e the whole averaging cycle is treated as a single value The introduction of 0 causes the operation at the moment of alarm occurrence
19. group level moving through the chosen level change of the chosen parameter value decrease of the value successive parameter in the monitoring mode resignation key m entry to the menu of parameter monitoring hold down during ca 3 seconds exit from the monitoring menu resignation of the parameter change m absolute exit from the programming mode The pressure of the key combination causes the erasing of alarm signalling This operation exclusively acts when the support function is switched on The pressure of the key combination causes the erasing of all minimal values The pressure of the key combination causes the erasing of all maximal values The pressure and holding down of the key during ca 3 sec causes the entry into the programming matrix The programming matrix is secured by the safeguard code 9 The pressure and holding down of the key during ca 3 sec causes the entry into the previewing menu one must move through the previewing menu by means of keys In this menu all programmable indicator parameters except service parameters are only accessible to the read out The exit from the previewing menu takes place by means of the key On the previewing menu parameter symbols are alternately displayed together with their values The fig 4 shows the operation algorithm of the indicator The appearance of the following symbols on the digital displays means E rr Incorrectly intro
20. ice Function Number Value from the register Value from the register address code of bytes 1DBD 7613 1DBE 7614 01 03 08 Caution It is possible to readout simultaneously up to 28 registers Write of values in the register code 06h The function is accessible in the publication mode Example record of the register of 1DBDh 7613 address Request Register Register address address Value from the register Device Function address Hi Lo 1DBD 7613 01 06 1D BD 3F 80 00 00 Response Register Register Device Function address address Value from the register address Hi Lo 1DBD 7613 01 06 1D BD 3F 80 00 00 Record into n registers code 10h The function is accessible in the publication mode Example write of 2 registers beginning from the register with 1DBDh 7613 address Request Register Number of registers Number Value for the register Value for the register Hi Lo Hi Lo fbytes 1DBD 7613 1DBE 7614 08 Device address 01 3 Function Response Register Register Number of Number of Device Function address address registers registers address Hi Lo Hi Lo 01 10 1D BD 00 02 Caution It is possible to readout simultaneously up to 28 registers 23 Report identifying devices code 11h Example Data readout identifying the device for NA5 with a universal input Request Device Function Check
21. l control of the analogue output rzeczywista jest tylko w zakresie 0 120 7006 7508 Minimum d Minimal value of the currently displayed value m Maximal value of the currently 7008 7504 Maximum displayed value 7010 7505 Displayed value Currently displayed value 7012 7506 No occurs 1 7014 7507 No occurs 1 7016 7508 No occurs 1 7018 7096 7509 7548 No occurs 1 1 n case of registers no occuring in the given series of meters their value are equal 1E 20 Ca ution e Atthe moment of the upper or lower range exceeding minimum maximum and Displayed value parameters are 1E 20 unbelievable measurement result e For the parameter Cnt 0 blanking of the displays parameters minimum maximum and displayed value are set up on the value 32 1E 20 Description of the status register JO 98 10 onsuejoe1euo uueje eyejs z eyejs y BureuBiS XXX Jaddn eBuei ay juoid ay jo uonisod pneg yun pue 1ndino jo eouejsiseJ pea JO JOE e dsip X X X X XIX X X X X X Xx X 0 LSB 1 bits 15 14 13 1211 109 8 76 5 4 3 2 MSB Bit 15 Kind
22. ld introduce the indicator from the front 96 ofthe panel when the supply circuit is turned off After introducing the indica tor fasten it by means of holders max 93 ed 67 Fig 1 Overall dimensions 6 4 CONNECTION N At the rear side of the indicator there are two terminal strip seats A connector with screw terminals or a self locking connector is added to the meter depen ding on the indicator type chosen in the ordering code The fig 2 shows the connection way of external signals The description of the connector is also printed on the indicator housing Current Voltage RS 485 analogue analogue output output A 17 18 19 20 21 22 23 24 25 26127 28 29 30 31 32 11213415 6178910111 12 13 14 15 16 Alarm 1 Alarm 2 N L Supply Fig 2 Connection ways of the N12B indicator It is recommended to use screened leads on the indicator input As a feeder cable one must use a two wire cable and choose the lead cross section such that in case of a short circuit from the device side the protection of the cable was ensured by means of the electric installation fuse Requirements related to the feeder cable are regulated by the EN 61010 1 standard 5 OPERATION After switching the indicator on its type and next th
23. level 17 Contact 8 nor state 1 Relay switched on 0 Relay 1 Switched off t gt Measured quantity PrL PrH PrH gt PrL Contact b nor state 1 Relay switched off Relay switched on t PrH PrL PrH lt PrL Measured quantity c OFF state Relay Relay switched on switched on Relay switched off PrH Measured quantity Contact Relay Relay i Relay switched off switched off switched on T T gt PrL PrH Measured quantity Fig 6 Alarm type a and b normal c switched off d switched on 18 CAUTION A e Incase of On and OFF alarm types the writing down of PrL gt PrH will cause an automatic transcription of the value from the threshold PrL into PrH and from PrH into PrL The alarm type will not change e Incase of a measuring range exceeding the relay reaction is concordant with written down PrL PrH and tYP parameters In spite of displaying the exceeding the indicator will carry out the measurement as before e Incase of an individual characteristic switching on Ind On the measurement result is transformed linearly in accordance with introduced H1 Y1 H2 Y2 parameters e The indicator currently checks up the value of the actually introduced parameter In case when the introduced value exceeds the upper range of changes given in the table 1 the indicator will automati
24. measu The indicator works in the previewing mode rement result the indicator displays the parameter sym bol alternately with its value despite we were not entered into the programming mode A delay of the alarm operation The lasting alarm state was shorter than the has been introduced e g programmed e g during the lasting time of the 30 averages however after alarm the state of alarm withdrawal has occurred this time the alarm has not In that case the indicator starts counting the operate measurements from the beginning The indicator does not estab Check if the interface leads A B GND have lish the communication with been correctly connected Then check in the the computer programming matrix the interface setting trYb bAud Adr These parameters must be the same as in the used software 10 PROGRAMMING EXAMPLES OF N12B METERS Example 1 Programming of an individual characteristic If we want to programme so that to the value 4 00 is to correspond the value 0 00 on the display whereas to the value 20 00 is to correspond the value 100 00 one must e enter to the programming mode and choose the d P parameter responsible for the decimal point Set up the point on the 000 00 position choose the Ind parameter and switch the individual characteristic on 38 choose the parameter H1 and introduce the value 4 00 pass on the Y1 parameter and introduce the value 0 00 pass on the H2 parameter and in
25. mediate separating systems The lead out of the interface line is given in the paragraph 4 To obtain a correct transmission it is necessary to connect lines A and B in parallel with their equi valents in other devices The connection must be carried out with a screened lead The screen must be connected to the protective grounding in a single point The GND line serves to an additional protection of the interface line for long connections One must connect it to the protective grounding this is not necessary for the interface correct work In order to obtain the connection with an IBM PC computer an RS 485 interface card or a RS 232 RS 485 converter is indispensable On the Fig 7 and Fig 8 the device connection is shown 20 Maximum 1200 m Tx A Optional device with MODBUS protocol in slave mode e g N12P N12B indicator in the master mode B Rx Fig 7 Way of the RS 485 interface connection in the master mode AX Maximum 1200 m A 28 indicator Computer in the slave mode or optional ES B Rx 1 N12 meter N12B indicator in the slave mode or optional N12 meter N12B indicator in the slave mode or optional N12 meter Fig 8 Way of RS 485 interface connection in the slave mode The marking of the transmission line for the card in the PC computer depends on the card producer 21 7 2 Description of the MODBUS protocol implementation The implemented protocol is c
26. ments according EN 61010 1 standard installation category level of pollution 2 maximal voltage in relation to the earth 300 V a c Protection level ensured by the housing IP 50 ensured by the terminals IP 20 Weight 200 g Time of the display restoring programmed min 20 ms 36 9 BEFORE A FAILURE WILL BE DECLARED A SYMPTOMS PROCEDURE 1 The indicator does not operate Check the connection of the feeder cable 2 Only the diodes are lighting The number of transmitted averaged values which has been introduced 0 The indicator operates in the SLEEP mode The display is blanked 3 Only the horizontal dashes are displayed on the display Transmitted values are beyond the indicator range 4 Lack of possibility to enter into the programming mode The inscription Err is displayed The programming mode is protected by the password If the user forgets which password has been introduced one must contact the nearest authorised service workshop 5 Lack of certainty if all display segments are efficient Enter into the service mode and switch on the display test Simultaneously the same segments should be lighted on all displays The state with blanked displays does never occur Otherwise submit the defect to the nearest authorised service workshop 6 During operations in the pro gramming mode parameter values inconsistent with the range of changes given in the table 1 appear
27. of display 0 meter or indicator with a 4 digit display 1 meter or indicator with a 5 digit display Bit 14 Reserved Bit 13 Kind of output voltage current 0 current 1 voltage 33 Bit 12 10 Working mode and information unit 000 interface switched off 001 8N1 ASCII 010 7E1 ASCII 011 701 ASCII 100 8N2 RTU 101 8E1 RTU 110 801 RTU Bit 9 8 Baud rate 00 2400 bit s 01 4800 bit s 10 9600 bit s Bit 7 5 Position of the decimal point 000 lack 001 0 0 010 0 00 011 0 000 100 0 0000 only for 5 digit meter or indicator executions Bit 4 Signalling of the range upper overrunning 0 normal work 1 range overruning Bit 3 Signalling of the range lower overrunning 0 normal work 1 range overrunning Bit 2 Relay state alarm 2 0 switched off 1 switched on Bit 1 Relay state alarm 1 0 switched off 1 switched on Bit 0 Individual characteristic 0 Individual characteristic switched off 1 Individual characteristic switched on 34 8 TECHNICAL DATA Panel indicator dimensions Protection index ensured by the housing front Protection index ensured from the terminal side Rated operating conditions e supply voltage depended on the execution code e supply voltage frequency e ambient temperature e relative air humidity Power consumption Storage temperature Display field N12B4 indicator N12B5 indicator Indication range of the digi
28. ompatible with the PI MBUS 300 Rev G Modicon Company Setting up of meter serial link parameters in the MODBUS protocol meter address 1 247 baud rate 2400 4800 9600 bps Working modes ASCII RTU information unit ASCII 8N1 7E1 7O1 RTU 8N2 8E1 801 The parameter configuration of the serial link is described in the further parts of this service manual It consists on the settlement of the baud rates bAud parameter device address Adr parameter and the information unit type trYb parameter Notice Each indicator or meter connected to the communication network must have a unique address different from addresses of other devices connected in the network an identical baud rate and information unit type 7 3 Description of used functions Following functions of the MODBUS protocol have been implemented in meters of N12 series and in N12B indicators Code of functions Table 3 Code Meaning 0x03 Read out of n register 0x06 Writing of a single register 0x10 Writing of n registers 0x11 Identification of the slave device Read out of n registers code 03 h The function is inaccessible in the publication mode Example readout of 2 registers beginning from the register with 1 DBDh 7613 address Request Register Register Number of Number of Device Function address address registers registers address code Hi Lo Hi Lo 01 03 1D BD 00 02 Response Dev
29. on the display Enter into the service mode and accept the SEt parameter The indicator will introduce values in accordance with the table 2 7 A result inconsistent with our expectations appears on the display Check if the individual characteristic is not switched on In case of necessity enter into the service mode and accept the SEt parameter The indicator will introduce parameters in accordance with the table 2 8 H1 Y1 H2 Y2 d P parame ter symbols are not displayed in the programming mode In case of switched individual characteristic off mentioned symbols are omitted 9 Despite of the alarm threshold exceeding neither the alarm relay nor the signalling diode is switched on Check the introduced delay of the alarm opera tions into the indicator If need be correct the dLY parameter 37 Despite of the relay switching Check if the alarm signalling support is not off the alarm diode does not switched on LEd parameter In case of need go out switch it off When the parameter of the The alarm still lasts The erased diode is imme alarm signalling support is diately re lighted switched on lack of possi bility to erase the signalling diode by means of the key combination Fig 4 Despite the fact that the alarm Check if a delay of the alarm operation has not still remains the signalling been introduced dLY parameter diode does not light up Instead to display the
30. s a good readability at a long distance They realise other additional functions as signalling of the set alarm value overrunning signalling of the measuring range overrunning re calculation of the measuring quantity into an optional quantity on the base of an individual linear characteristic programming of the indication resolution programming of the averaging number of transmitted values saving of maximal and minimal values monitoring of set parameter values blocking of the parameter introduction by means of a password highlighting of any optional measuring unit as per the order servicing of the interface with a MODBUS protocol both ASCII and RTU conversion of the measured quantity into a standard programmable current or voltage signal interception and display of the register value from the device connected to the bus Master asking of the device connected to the bus With the meter we deliver a guarantee certificate 2 holders to fix the indicator on a panel a connector with screw or self locking connections as per order a service manual a set of stickers with units After unpacking the indicator please check whether the type and execution code on the data plate correspond to the order Symbols located in this service manual mean these symbols can occasion the damage of the meter One must take note of this when the meter is working inconsi Especially impor
31. sum address code CRC 01 11 CO 2C Response Device Function Quantity Device Device Field depending Control address code of bytes identifier state on the device type total Po fn Jo 6 e 3 Device address depending on the set value Function function No 0x11 Number of bytes 0x08 Device identifier 0x65 N12B Device state OxFF Field depending on the device type XXXXXX Device name transmitted as ASCII character and defines the indicator type 0x42 42 XXX XX Number of display Field depending on the number of indicator display digits 0x04 4 digit indicators X 04 X X X X 0x05 5 digit or indicators X05 X X X X No of the program ming version programming version implemented in the meter or indicator X X _ 4 byte variable of float type Control total 2 bytes in the case of work in the RTU mode 1 byte in the case of work in the ASCII mode 24 Example Working in the mode e g trYb r8n2 N12B indicator Execution with a 4 digit display No of the programming version 1 00 Device address set on Adr 0x01 For this type of meter the frame will have the following shape Device Number Device Device Field depending Control ofbytes identifier state on the device type total CRC address Function 01 11 08 60 FF 42 04 3F 80 00 00 CF B1 7 4 Register map of N12B indicators Register map of the N12B indicators Table 4 Address range Valu
32. tal display N12B4 indicator N12B5 indicator Servicing Relay outputs programmable alarm thresholds three types of alarms see chapter 6 96 x 48 x 93 mm IP 50 IP 20 85 253 V a c d c 20 40 V a c d c 40 440 Hz 0 50 C lt 75 water vapour condensation inadmissible max 5 VA 20 C 85 C four 7 segment LED displays and two alarm diodes five 7 segment LED displays two alarm diodes and two diodes to the unit highlighting 1999 9999 19999 99999 cztery przyciski Le yv j a hysteresis defined by means of the lower and upper alarm threshold signalling of alarm action by means of diodes programmable delay of the alarm operation two relay outputs voltageless make contacts maximal load capacity voltage 250 V a c 150 V d c 35 current 5A 30 V d c 250 V a c resistance load 1250 VA 150 W Analogue output current programmable 0 4 20 mA load resistance lt 500 voltage programmable 0 10 V load resistance 2 500 Q galvanic insulation resolution 0 0196 of the range basic error 0 2 of the range Digital output RS 485 interface MODBUS transmission protocol ASCII 8N1 7E1 701 RTU 8N2 8E1 801 Baud rate 2400 4800 9600 bauds Maximal response time for query frame 600 ms Electromagnetic compatibility immunity acc EN 61000 6 2 emission acc EN 61000 6 4 Safety require
33. tant one must acquaint with this before con N necting the meter The non observance of notices marked by stently to the expectations 2 BASIC REQUIREMENTS OPERATIONAL SAFETY N N12B indicators are destined to be mounted into panels and cubicles In the range of operational safety they are in conformity with the EN 61010 1 standard requirements e The installation and indicator connection should be operated by a qualified personnel e One must take into consideration all accessible protection requirements e Before switching the instrument on one must check the correctness of the network lead connection Requirements in respect to the main lead must be in accordance with the EN 61010 1 standard There must be a cut off installed in the building This cut off should be installed near the device and easy accessible for the operator e Incase of the protection terminal connection with a separate lead one must remember to connect it before the connection of network leads e Do not connect the instrument to the network through an auto transformer e Before taking the indicator housing out one must turn the supply off e The removal of the indicator housing during the warranty contract period may cause its cancellation 3 FITTING N Prepare 92 x 45 mm hole e e ad d a in the panel The thickness of the material from which the panel is made UU Ce can not exceed 15 mm One shou
34. the analog output type Choose the PrAd current output e under the AnL parameter one must write down the value for which we want 0 mA on the analogue output For this reason one must calculate the AnL parameter 20 0 20 4 1 25 gt 0 4 1 25 5 choose the AnL parameter and introduce the value 5 00 choose the AnH parameter and introduce the value 20 00 40 11 EXECUTION CODES N12 DIGITAL METERS XX X XXX Inputs unit temperature programmable input sym 1V d c 10 V d c 20 mA d c 200 mA d c bol 600 V d c 1A d c 5 H rotations frequency period pulse number single phase parameters indicator for synoptic pannel e rinm A Number of digits on the display 4 digits digit height 20 mm 5 digits digit height 14 mm Display colour Supply voltage 230 V a c d c 24 V a c d c Kind of terminals socket plug with screw connections socket plug with self locking connections Execution standard execution 00 custom made execution ssssssssseeees XX Acceptance tests without a quality inspection 8 with a quality inspection certificate acc customer s agreement Unit SYM OM sec intei a er Reno crate Dee XX
35. troduce the value 20 00 pass on the Y2 parameter and introduce the value 100 00 Example 2 Programming of an inverse individual characteristic If we want to programme so that to the value 4 00 is to correspond the value 120 50 on the display whereas to the value 20 00 is to correspond the value 10 80 one must e enter to the programming mode and choose the d P parameter responsible for the decimal point Set up the point on the 000 00 position choose the Ind parameter and switch the individual characteristic on choose the H1 parameter and introduce the value 4 00 pass on the Y1 parameter and introduce the value 120 50 pass on the H2 parameter and introduce the value 20 00 pass on the Y2 parameter and introduce the value 10 80 Example 3 Programming of the alarm with hysteresis If we want to programme the alarm 1 operation so that the alarm will be switched on at the value 850 whereas switched off at the value 100 and the alarm 2 so that at the value 1000 the alarm will be switched off whereas switched on at the value 199 one must e enter into the programming mode and choose the level with the ALr1 symbol e enter on the level Alr1 choose PrL parameter and introduce the value 100 pass on the PrH1 parameter and introduce the value 850 pass on the tYP parameter and choose the function designed as nor exit from the ALr1 level and pass on the ALr2 level choose the PrL parameter and introduce the value1000 pass on the
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