Multifunction Electric. Power Meter (LCD type J) USER S MANUAL

Transcription

1 Ordering statement when Signing the ontrat, please delare suh information as produt model, input signal, wiring mode and so on. The series of produts have a default prefatory setting and without standard funtion of four quadrant energy. Please speify in other item if user needs the funtion of four quadrant energy or have speial requirement. Examples of order produt name: multifuntion eletri meter outline dimension 0*0*90 mm input 0KV/00V 00/5 grid three-phase three-line ommuniation interfae RS485/MODUS-RTU produt name: multifuntion eletri meter outline dimension 0*0*90 mm outline dimension 96*96*90 mm input 380V 00/5 grid three-phase four-line ommuniation interfae RS485/MODUS-RTU Multifuntion Eletri Power Meter (LD type J) USER S MNUL Version.0 May/0

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3 ommon prolems and Solutions out ommuniation ) The meter has not sent data ak Reply: Make sure ommuniation setting information of the meter suh as suordinate mahine address, aud rate, heking mode and so on orrespond with the requirements of upper motion first; hek whether the ommuniation us on spot is onneted orretly and RS485 onverter is in normal operation or not if many meters have not sent data ak. Related ommuniation us shall also e heked if only signal or a few meters ommuniate anormally. Modify suordinate mahine address y exhanging that of anormal and normal meter to exlude or onfirm whether there is something wrong with the software of upper motion, or exhange installation site of anormal & normal meter to exlude or onfirm whether there is something wrong with the meter. )The data sent ak y the meter is not orret. Reply: The data of multifuntion eletri meter opening to ustomers are primary grids float type and seondary grids int/long type. Please read the instrution aout data storing address & format in ommuniation address tale arefully and make sure that transformation is arried out aording to relative data format. It is suggested to download MODUS-RTU protool testing software MODSN whih onforms to standard MODUS-RTU protool from the ompany homepage, and the data of the software an e display in int/long, float and hexadeimal, whih an e ompared with data displayed on meters diretly. Measurements aout U, I and P are not orret Reply: First make sure that the meter has een input right voltage and urrent, multi-meter is used for measuring voltage and lip-on ammeter for urrent if neessary. Then ensure signal line is onneted orretly, for example, hek whether the orresponding terminal (i.e. leading-in terminal) and eah phase sequene is orret. Oserve interfae display for multifuntion eletri meter, its symol is displayed positive under normal ondition and negative only when it is under reverse transmission whih is aused y wrong onnetion of inlet-outlet lines or wrong phase sequene onnetion. What is more, eletri quantity displayed y the meter is the value of primary grids; it may lead to wrong eletri quantity display if the ratio of voltage and urrent transformer does not onform with that of transformer in-servie. The default voltage and urrent range is not allowed to modify after delivery. onnetion network is availale to modify aording to atual onnetion on spot, ut the onnetion mode set in programming shall orrespond with the atual, otherwise it may lead to wrong display. 3 Power running is not orret. Reply: Power aumulates on the asis of measurement; hek whether value displayed is onsistent with atual loading. s multi-funtion meter supports ilateral measurement, will e aumulated to reverse ative instead of forward one if lines are not onneted properly or total ative is negative. The most ommon prolem on spot is inlet and outlet line of urrent transformer are in reverse onnetion. For multi-funtion meter, it is availale to oserve ative in split phase with symol, it may e negative eause of wrong onnetion, and what is more, wrong phase sequene may lead to wrong running. 4 Meter does not work. Reply: Ensure proper auxiliary /D80-70V is linked to the auxiliary terminal, as the meter may e damage y auxiliary voltage eyond regulation and an not reovery. Use multi-meter to measure the voltage of auxiliary, and nondisplay on the meter if it is all right, it is possile to eletrify again; if the meter an not display normally, please ontat with our tehnial servie department. atalogue summary tehnial parameter. auxiliary. input signal program and operation 3. definition of press key 3. measurement display page display diagram program & operation leakage urrent detetion instrution menu struture diagram programming menu struture diagram 0 e xample d iagram o f d eugging - digital ommuniation 3 4. message format ommand 5 4. pulse output 6 MODUS-RTU address message tale 7-0 wiring diagram 4 square 96 square ommon prolems and Solutions 3 3

4 multifuntion eletri meter summary Multifuntion eletri meter an omplete eletriity measuring, energy metering, data display, aquisition and transmission with funt ions of programmale measurement, display, digital ommuniation, energy pulse output and transmission output and so on. They are widely used in sustation automation system, distriution automation, intelligent uilding and enterprise for energy measuring, management and assessment, and an display on spot and remote Rs485 digital ommuniation interfae whih used MODUS-RTU protool. Measuring preision is 0.5 magnitude. Outline 4square 96square Name Measurement Display standard funtion multifuntion eletri meter Three-phase U I P Q EP+ EP- EQ+ EQ- SP F PF or part of them LD pagination display Rs485 ommuniation energy pulse output 96 square outline dimension mm ut-out size mm mm 9.00mm tehnial parameters Performane Input measurement display Power Output Environment Seurity Voltage urrent Network Rate value Overload Power onsumption Inpedane uray Rate value Overload Power onsumption Frequeny Power Energy Harmoni Working sope Power onsumption Digital interfae Working environment Storage Inpedane uray Resist pressure Insulation Energy measuring range 5-500V ontinuous:.times 5(speify when ordering) ontinuous:.times instantaneous:0times/0s instantaneous:0times/0s tive &apparent is 0.5 reative is.0 Four quadrant metering ative energy auray is.0,reative energy is.5 Total harmoni ontent :-3times RS-485 Parameters Three-phase three-line <V(eah phase) >500k MODUS-RTU protool three-phase four-line RMS measuring auray lass is 0.5 <0.4V(eah phase) <m RMS measuring auray lass is ~55Hz /D 85~70V 5V -way pulse output pulse onstant 5000imp/h -0~55-0~75 Input/ >kv input/output>kv /output>kv Input, output or hassis>50m tive or reative energy measuring range is 0~ Mwh, energy data ount from 0 when exeeding the data value N outline dimension RO RP O P GND OMM urrent input Ia Ia* I I* RO RP O P GND OMM urrent input Ia Ia* 5 4 I I* 9 8 I I* 9 8 Voltage input Ua U U Un 3 4 Voltage input Ua U U 3 4 N ut-out size 9 9 optional RO RP O P GND OMM urrent input Ia Ia* I I* I I* 9 8 RO RP O P GND OMM urrent input Ia Ia* I I* Voltage input Ua U U Un phase 4-line urrent input through t voltage input diretly 3-phase 4-line urrent input through t voltage input through PT Voltage input Ua U U phase 3-line urrent input through t voltage input diretly 3-phase 3-line urrent input through t voltage input through PT

5 N RO RP O P GND OMM Leakage urrent input Voltage input detetion Ia Ia* I I* I I* Ua U U Un wiring diagram RO RP O P GND OMM physial wiring prevail 4 square outline dimension mm ut-out size mm N RO RP O P GND OMM mm outline dimension ut-out size optional 3-phase 3-line urrent input through t voltage input diretly Leakage detetion RO RP O P GND OMM 07.00mm urrent input Voltage input Ia Ia* I I* I I* Ua U U Un phase 4-line urrent input through t voltage input diretly 3-phase 4-line urrent input through t voltage input through PT 3-phase 3-line urrent input through t Leakage urrent input Voltage input Leakage urrent input Voltage input detetion Ia Ia* I I* Ua U U detetion Ia Ia* I I* Ua U U voltage input through PT. auxiliary Multifuntion eletri meter has ommon (/D) input interfae programming and usage 3. definition of press key enter key onfirming for password and numerial value modifying menu key used for hosing menu interfae, exiting funtion and returning last level menu right key used for shifting funtion when measuring display plus numer when modifying data from0 to 9999 in irle left key used for shiftingfuntion when measuring display minus numer when modifying data from0 to 9999 in irle 3. measuring display an measure parameters in grid: Ua,U,U,(phase voltage); Ua,U,Ua(line voltage); Ia,I,I(urrent)), Ps( total ative ), Qs(total reative ). Pf( total fator);ss(total apparent ); FR( frequeny), EP (ative energy), and EQ(reative energy). ll measurement parameters are saved in internal message tale whih an aquire through digital ommuniation interfae devie. For different types of meters, its display ontent and type may e inonsistent, please refer to the speifi details. The numerial method of all parameters use following formula of digitized disrete method. if no speial statement provide standard /D85 70V interfae Guarantee that the is applied in the series of produts to prevent damage. note when using, it is reommended to install fuse on the side of firewire. Poor quality, it is reommended to install surge suppressor to prevent lightening,and install rapid urst suppressor in the iruit.. input signal The produt adopts numerial method of separate olletion for eah measurement hannel to ensure onsistent symmetry when using. Its onnetions with a variety of ways are for different load forms... voltage input input voltage should e elow rated input voltage 00V or 400V otherwise it is onsidered to d use PT and need to install fuse of on the side of voltage input... urrent input: standard rated input urrent of 5, should use the external T when aove 5. If you use T with other meters, wiring should e onneted in series mode, e sure to disonnet T of primary iruit or short seondary iruit efore removing the urrent input onnetion. It is reommended to use terminal row, do not onnet T diretly for easy disassemly...3 Ensure that input voltage and urrent are in the same sequene, in-line and out-line are in the same diretion, or there would e value and sign error!( and energy)..4 The onfiguration of the meter input network is deided y the T numer of system, in the situation of T, selet two omponents mode of 3-phase 3-line; in the situation of 3 T, selet three omponents mode of 3-phase 4-line.meter wiring and input net in program set should orrespond to wiring mode of measured overload, or it an lead to measuring voltage or inorretly. Voltage measurement and display is line voltage in 3-phase 3 line; ut voltage measurement and display is phase voltage in 3-phase 4-line.

6 tive energy, reative energy, four quadrant display 3.3 page display diagram a a orresponding measuring item resptively three-phase voltage three-phase urrent ative, reative, apparent ative energy, reative energy, fator, frequeny, voltage total harmoni ontent, urrent total harmoni ontent, voltage unalane degree, urrent unalane degree, leakage urrent, split phase ative, split phase reative, Split phase fator Multifuntion eletri meter has 7 eletrial parameters display pages an e set for automati swithing display also an e set for manual swithing through Formula Page ontent Instrution Page Notes Voltage effetive value urrent effetive value Single-phase ative Periodi average value Total ative Periodi average value Formula Keys to omplete page swithing. Notes Single-phase apparent Periodi average value Power fator Reative Energy P<0 Q>0 P<0 Q<0 Respetively display voltage Ua, U and U three-phase four-line and Ua, U and Ua three-phase three-line s left piture, Ua=36.70V, U=36.7V, U=36.70V, EP=6.00kWh The meter displays line voltage when Three-phase three-line wiring It displays phase voltage when Three-phase four-line wiring. P>0 Q>0 P>0 Q<0 P>0 umulative ative energy is ative energy asorption P<0 umulative ative energy is ative energy release Q>0 umulative reative energy is reative energy indutive Q<0 umulative reative energy is reative energy apaitive. 4keys are used for display,withing or program setting are swithing keys, Menu is ak key is seleting&onforming key. ddress HEX 0x00~0x09 0~9 0x0E~ 0xF 0x 0xD 0xE 58~ 69 0xF 303 urrent ratio T= x30 0x3 0x3 0x33 0x34 0x3E8 0x3E9 0x3E 0x3E 0x3E 0x3ED 0x3EE 0x3EF 0x3F0 MODUS-RTU ommuniation address information tale ddress De 70~ 87 88~ Data ontent H-I Data format Length word instrution Seondary grid data(int/long integral data) set password Meter om address Voltage ratio om aud rate om data format Wiring mode Voltage range urrent range ll parameters setting address(write) set password Meter om. address Voltage ratio urrent ratio om aud rate om data format Wiring mode Voltage range urrent range Setting parameter phase urrent -5 times harmoni total ontent PT= data f orma t 0-N.8. -O.8. -E.8. 0-three-phase four-line; -three-phase three-line 0-00V -0V -380V PT=-5000 T= data f orma t 0-N.8. -O.8. -E.8. 0-three-phase four-line; -three-phase three-line 0-00V -0V -380V

7 ddress HEX 0x00~0x09 0x6 0x63 0x65 MODUS-RTU ommuniation address information tale ddress Data Data Length Instrution De ontent ontent word 0~9 Seondary grid data(int/long integral data) Eq+ Eqlong long Indutive reative energy, unit is varh apaitive reative energy, unit is varh 0 Umax Voltage maximum demand 0.V Page Page a ontent Instrution Display three-phase urrent Ia I I,with unit of. s left piture, Ia=8.770, I=8.77, I= EP=-0.668kWh 0x66 0 Imax urrent maximum demand x67 0x68 0x69 0x6E 0x6F 0x ~09 0 Pmax Qmax Id Retain THD-Ua THD-U THD-U tive maximum demand W reative maximum demand Var Zero sequene urrent or leakage urrent, 0.00 phase voltage total harmoni ontent phase voltage total harmoni ontent phase voltage total harmoni ontent Page 3 Display ative W,reative var and apparent V. s left piture, PS=.4553KW QS=4.476KVar SS=4.9059KV EQ=5.44MVarh 0x7 0x7 0x73 0x74 0x75 0x78~0x ~ 9 0~ 37 38~ 49 THD-Ia THD-I THD-I vg vg H-Ua phase urrent total harmoni ontent phase urrent total harmoni ontent phase urrent total harmoni ontent Three-phase voltage unalane 0.0% Three-phase urrent unalane 0.0% phase voltage -5 times harmoni ontent Page 4 Display apparent fator s left piture, PF), frequeny (F) the st row: PF is 0.5; the nd row 50.00Hz. EQ=-5MVarh frequeny is 0x96~ 0x7 0x4~ 0x5 0xD~ 0xE3 50~ 67 68~ 79 80~ 97 98~ 09 0~ 7 8~ 39 H-U H-U H-Ia phase voltage -5 times harmoni ontent phase voltage -5 times harmoni ontent phase urrent -5 times harmoni ontent Page 5 a Display,, threephase ative. s left piture Pa=864W P=887W P=800W Ep=-0.668KWh 0xF0~ 0x0 40~ 57 H-I phase urrent -5 times harmoni ontent 9 4

8 Page a ontent Instrution Display,, threephase reative. ddress HEX 0x00~0x09 MODUS-RTU ommuniation address information tale ddress De 0~9 Data ontent Data ontent Length word instrution Page 6 s left piture, Qa=.449kvar Q=.459kvar Q=.466kvar EQ=5.44Mvarh 0x46 0x47 0x48 0x49 Seondary grid data(int/long integral data) Ua U U Ua Three-phase phase-vlotage data,unit 0.V NO it is valid only in three-phase four-line onnetion mode, and invalid in three-phase three-line onnetion mode. Page 7 Page 8 a THD a PF Display,, threephase fator. s left piture, PFa=0.449 PF=0.5 PF=0.499 EQ=-5Mvarh Display three-phase voltage total harmoni ontent(, and respetively) Ep=6.0KWh 0x4 0x4 0x4 0x4D 0x4E 0x4F 0x50 0x5 0x5 0x53 0x54 0x55 0x U Ua Ia I I Pa P P P Qa Q Q Q Three-phase phase-vlotage data, with unit of 0.V Three-phase urrent data, with unit of 0.00 Split phase and total ative with unit of W NO ative data marked with +, means load eletri energy, and - means load generation. Generally, when the wiring is improper, the ative is -. Split phase and total reative with unit of var NO reative data marked with + means indutive load and - means apaitive load. 0x57 87 Sa page 9 THD a Display three-phase urrent total harmoni ontent(, and respetively) EQ=-0.668KWh 0x58 0x59 0x5 0x5 0x5 0x5D S S S osq F Ep+ long Split phase and total apparent with unit of V Power fator 0~.000 fixed format.000 Frequeny with unit of 0.0Hz Positive ative energy, unit is wh 0x5F 95 Ep- long Reverse ative energy, unit is wh 5 8

9 ddress HEX ddress De Data ontent 0x00~0x09 0~9 0x0 0x0 0x0E 0x0 0x 0x4 0x6 0x8 0x 0x 0xE 0x0 0x 0x4 0x6 0x8 0x 0x 0xE 0x30 0x3 0x34 0x36 0x38 MODUS-RTU ommuniation address information tale ~69 Ua U U Ua U Ua Ia I I Pa P P P Qa Q Q Q S osq FR Ep+ Eq+ Ep- Ep- Retain Data format Length word Primary grid data(float) Foat instrution Three-phase phase-vlotage data,unit 0.V NO it is valid only in three-phase four-line onnetion way, and invalid in three-phaase three-line onnetion way. Three-phase phase-vlotage data, with unit of 0.V Three-phase urrent data, with unit of 0.00 Split phase and total ative with unit of k NO ative data marked with +, means load eletri energy, and - means load generation. Generally, when the wiring is improper, the ative is -. Split phase and total reative with unit of kvar NO reative data marked with + means indutive load and - means apaitive load. Total apparent KV Power fator 0~.00 Voltage frequeny Hz Positive ative energy with unit of kwh Reverse ative energy (i-diretional metering) Indutive ative energy with unit of kvarh apaitive reative energy Page ontent Instrution page 0 page Page page 3 Max Display three-phase voltage total unalane degree. Left piture displays voltage unalane degree 0.5%. EQ=5.44Mvarh Display three-phase urrent total unalane degree. Left piture displays urrent unalane degree 0.0%. EQ=-5Mvarh Display leakage urrent or zero line urrent. Left piture displays leakage urrent EQ=6.0Mvarh Only 96*96 outline has the funtion. Display max voltage, urrent demand (aquisition data every 5 minutes s left piture, Umax=0.5V Imax=4.863 Ep=.3kWh 7 6

10 Page ontent Instrution 4. energy pulse Page 4 Max Display max ative, reative demand(aquisition data every 5 minutes s left piture, Pmax=374W Qmax=508var Ep=-.36kWh Multifuntion eletri meter an i-diretional ative and i-diretional reative eletri energy metering, -hannel eletri energypulse output and the digital interfae of RS485 to omplete display & remote transmission Of the eletri energy data. Realize the ative eletri energy and reative eletri energy remote transmission through the eletri energy pulse of the optially oupled relay of the open olletor as well as adopt the remote omputer terminal and the pulse sum for the olletion instrument of PL, DI swith olletion module to realize the eletri energy umulative metering. dopt the pulse output mode to inspet the preision of the eletri energy national Metro logial regulation: the omparative method for pulse error of the standard 3.4 program and operate Under programming operation the meter provides 4 asi menu items whih are password verifing and hanging(ode), system setting SET, display setting DIS and ommniation setting ONN and 8 expansive menu items whih are 4-way analog setting O-//3/4 4-way swith output setting Do-//3/4 it uses layer menu struture management mode of LED display. the st row LED displays st layer menu information the nd row LED displays ndt layer menu information the 3rd row LED displays 3rd layer menu information tive reative Use layer menu struture management mode programming items as left piture The st layer SEt parameter setting The nd layer net wiring system mode The 3rd layer n.3.4 three-phase four-line Using 4 keys to programming operation left-right key akspae key menu entering / onfirming key to omplete all aove funtional operation. dereasing. left right shifting key to omplete menu item shifting or numer inreasing or seleting/onfirming key if present normal display is voltage interfae press this key, an shift phase voltage/line voltage under programming mode press the key to enter next level menu ontrol ursor move to next harater or next layer seleting item. Under the situation of programming mode returning to measuring mode the meter will indiates SVE-YES selet means no saving and exit selet save and exit. If present normal display is voltage interfae, press this key to enter programming mode. Press the key to return to last level menu in programming mode. if present display is the st layer menu, press the key to enter to parameter saving interfae, repress it to anel saving, and return to normal display interfae. Eletri energy pulse output diagram () Eletrial harater: in the shemati diagram for the iruit of the pulse olletion interfae V 48V,Iz 50m. () Pulse onstant: 5000 imp/kwh (all measuring range), The meaning is: when the meter umulates KWh, the numer of the output pulse is It must e emphasized that kwh is the seondary measured data of eletri energy. Under the ondition of PT and T, the 5000 pulse data orresponding to primary measured eletri energy is kwh voltage transformation ratio Pt urrent transformation ratio T. (3) ppliation example: the pulse ounting devie is used for PL terminal. Suppose during the period with the length of t, the numer of olleted pulse is N; the input of meter is: 0kV/00V 400/5, thus the eletri energy aumulation Of meter during the time period is: N/ degrees eletri energy. 7 6

11 4. message format ommand read data register value funtion ode 0x03/0x04 Frame struture ddress ode Funtion ode Initial register address Data ode Register numer hek ode 3.5 leakage urrent deteting instrution(only 0*0 outline has the funtion) 3.5. display interfae as following Host Oupy ytes inquiry Slave response Data sope Example of Message Frame struture Oupy ytes Example of Message yte yte ytes ytes ytes ~47 0x0 ddress ode yte 0x0 0x03/ 0x04 0x03 Funtion ode yte 0x03 Instrution register address requested y host is inquiry initial address of primary grid or seondary grid inquiry register numer is inquiry data length as aove example, initial register address 0x00 0x3D means the eginning address of three-phase phase-voltage float data register numer 0x00 0x03 means data length (3Word data). Please refer to appendix for the detailed information of MODUS-RTU ommuniation address I. 5 0x00 0x3D Register yte numer yte 0x06 write seting register ommand funtion 0x0 Slave response Frame struture Oupy ytes Host Data sope inquiry Example of Message Frame struture ddress ode yte ~47 0x0 ddress ode 0x0 Funtion ode 0x0 0x0 Funtion ode Oupy ytes yte yte Example of Message 0x0 Initial relay address 0x00 0x07 Data ode 0x00 0x0 0x00 0x07 Data ode Relay numer Max 5 0x00 0x03 Register value N ytes (6 ytes data) Data yte numer Max 5 Max *5 0x04 Relay ation value yte yte yte ytes ytes Start relay address ytes Data ode 0x00 0x64 0x00 0x0 Numer of relay ytes 0x00 0x0 R 0x79 0x9 hek ode ytes (R) hek ode ytes R 0x73 0x9 hek ode ytes 0xF0 0x09 Instrution in order to ensure normal ommuniation arry on a host inquiry register numer is limit to 5.in aove example, initial register address 0x00 0x07 means starting address of voltage ratio setting register numer 0x00 0x0 means total Words data of voltage and urrent ration setting writting numer 0x00 0x64 0x00 0x0 means voltage ratio was set for 00, urrent ratio 0. Please refer to appendix for the detailed information of MODUS-RTU ommuniation address. DO: 3.5. funtion instrution Residual urrent deteting part inluding zero sequene urrent transformer(zt) and measuring iruit zero sequene urrent indutane deteting. When ZT detet s to exist over-limit residual urrent whih an set etween3m to 500m in eletriity lines, displaying residual urrent of eletri iruit through displaying interfae having passed 485 ommuniation interfae using MODUS protool to upload leakage urrent data department an timely maintain the iruit reakdown. nd also an ontrol node through multi-hannel for ontrolling alarm,tripout and so on internal zero sequene urrent transformer wiring diagram Ia I I In Under normal situation, vetor sum of Ia,I and I urrent is equal to zero line urrent In(Ia+I+I=In), ut diretion is opposite thus they anel out zero sequene urrent transformer detets urrent, Id=0. Show as following Ia ut if load or leakage urrent in wire that is zero sequene urrent In<Ia+I+I leakage urrent deteting urrent transformer an detets leage urrent through away leakage urrent magnitude Id=(Ia+I+I)-In. DI: zero sequene urrent transformer 8

12 3.6 menu struture as following user an set parameter aording to atual situation. Data frame struture: the message format. First layer Seond layer Third layer Desription ddress ode One Y Funtion ode One Y Data ode N Y aliration ode Two Y Password ODE System setting Set Display setting DIS om parameter ONN Verify Password Put hange password Set Net NET Voltage ratio PT.U urrent ratio T.I lear energy E.LE Display DISP.E Display page turning DIS.P right degree.led ddress dd om hek it dt Password data Password data( N.3.4 and N YES/no an hange the password after It verify suessfully If hose"yes" exit programmale menu press enter key, energy lear press ak key, energy do not lear hose"no" do not lear an set LD sleep time at will uto/hnd N.8./o.8./E.8. When input password is orret, an enter pragram default password:000 Selet input network of measuring signal Set voltage signal ratio=st sale/ nd sale, eg.0kv/00v=00 Set urrent signal ratio=st sale/ nd sale,eg.00/5=40 uto: turn page automatially every S Hand turn page y hand djust right degree of digital tue "0" is the darkest "6" is the rightest. (This item is meaningless.) The meter address sope 47 N.8.: no hek it o.8.od d hek E.8. even hek ddress ode : eginning part of the frame, a yte (8-it inary ode), with a deimal system from 0 to 55, ut in our system to 47 is used only with, other address remained. These its indiate the terminal equipment address designated y the user, the equipment will reeive the host data whih has een onneted with it. ddress of eah terminal unit must e unique, and the terminal only whih is addressed will respond to the inquiry to this address. When the terminal sends ak a response, the suordinate address data whih is in response will tell the main mahine whih terminal is ommuniating with it.. Data ode inludes the required data for the terminal to arry out the speifi funtions or the olleted data when the terminal responds to the inquiry. The ontents of these data may e the value, referene address or set value. For example: the funtion ode tells the terminal to read a register, data field need to indiate that start from whih register and read how muh data, while the loop ak ontent of slave data ode inludes data length and orresponding data. aliration ode The error hek field oupies two ytes, whih inludes a 6-it inary value. R value will e alulated y the transmission equipment and then added to the data frame, esides, the reeiving equipment will realulate R value when reeiving the data and then ompare the value with the reeived value in R field; if the two values are not equal, it shows that there is error. The proess of forming a R: () Preset a 6-it register as OFFFFH (full ) and all it as R register. () Make the nonequivalene operation etween the 8-it of the first yte in the data frame with the low yte in R register, and store the results into R register. (3) Move R register rightward for one it, and fill in the highest it with 0, while the lowest it shall e moved out and deteted. (4) If the lowest-order it is 0: repeat the third step (the next displaement); if the lowest-order it is : make the nonequivalene operation etween R register and a preset fixed value (000H). (5) Repeat the third step and the fourth step until there are eight times of displaement, thus it handles a omplete eight-it. (6) Repeat the seond step and handle the next eight-it in the fifth step until all the treatments for ytes are ompleted. (7) The R value is the final value of R register. funtion ode tells the seleted slave equipment to operate what funtion. Supported funtion y the meter in th following tale,and their meaning and funtion. ode meanings 0x03/0x04 meaning Read data register value om speed rate UD aud rate x0 write settng i register ommand 9 4

13 digital ommuniation Multifuntion eletri meter provides asynhronous half-duplex mode of RS485 ommuniation interfae, using Rs485 MOD-US-RTU protool, all data are availale on ommuniation transmission line. In a 485 us an onnet simultaneously up to 3 intelligent energy meter, eah intelligent energy meter an set its ommuniation address (ddress NO.). ommuniation terminal numers of different series meters may e different, ommuniation onnetion should e used with unshielded twisted-pair of opper network whih diameter is not less than 0.5mm. When Wiring,you should use ommuniation line away from the strong eletrial ales or other strong eletri field environment, reommend to use T-type network onnetion, do not use star type or other onnetions. Note ground MODUS protool is that a method to onnet ommuniations uses the method of prinipal and suordinate response on one ommuniation line. First, signal of main omputer address to a terminal unit with the unique address(suordinate omputer), then the terminal unit sends a response signal is transformed to the main omputer in the opposite diretion, that is: signal on one independent ommuniation line is transformed all ommuniation data low along two opposite diretions (semi-duplex working mode). MODUS protool only allows the ommuniation etween the main (P, PL, et.) and the terminal unit, do not allow to exhange data etween independent terminal unit, so that all terminal units do not oupy ommuniation line when they are initialized, ut only limited to response to reah inquiry signal of its own ompute.r Host inquiry: Inquiry message frame inludes equipment address ode, funtion ode, data information ode and hek ode. The address ode indiates the slave equipment needed to selet; funtion ode tells the seleted slave equipment to operate what funtion, for example, funtion ode 03 or 04 requires slave equipment to read register and return their ontents; data information ode inludes additional information of funtion exeuted y slave equipment. e.g. in the reading ommand, the additional information of data segments inludes whih register is the first to read and the numers of the register to e read; the hek ode is used to test the orretness of a frame information and provides a way to hek whether the message ontents are orret. It adopts R6 aliration rules. Slave response: If the slave equipment responses normally, the address ode, funtion ode, data ode and R6 aliration ode appear in response message. The data information ode inludes the data olleted y slave equipment suh as register value or state. If there is any error, we promise no response from slave. Transport mode refers to a series of independent data struture and limited regulation used for transporting data in a data frame, the following defines the ompatile transmission mode with MODUS protool- RTU mode. Every yte it: one start it, eight data its, (even -odd hek it), one stop it (if even-odd hek it exists) or two stop its (if no parity hek it) programmale menu struture user an set parameters aording to atual situation Program menu struture diagram password set display omm Note exit menu setting when appear SVG YES press key to save and exit press key, exit ineffetively. Numer displaement Numer up Numer down Return key 0 press 3 times modify password input setting password note: Do not need to press enter key, setting password 000 press Menu key diretly to return to last layer Note modify password 000(numer sope -9999).Do not need to press enter key, press Menu key diretly to return to last layer. input signal network urrent ratio sope: voltage ratio sope: energy lear sope:no/yes LD sleep mode an set sleep time at will Display page turning sope:manual/automati LED right degree This item is meaningless ommuniation address sope:-47 ommuniation speed rate 00/400/4800/9600 ommuniation hek it n.8./o.8./e.8.

14 E.g voltage ratio modifying e.g 0KV/00V E.g urrent ratio modifying e.g 50/5 Press 3 times Press 3 times The unit flashing K it flashing he unit flashing Press times Press times Kit flashing Hundred it flashing Press times Press times Press 5 times K it flashing Ten it flashing Press times The unit flashing The unit flashing Press 3 times to exit page saving Save Nominal value 00V onfirming Pt hanging value as following PT=0kV/00=00 6kV/00=60 Press 3 times to exit page saving Save onfirming Nominal value 5 t hanging value as following T=50/5=50 500/5=00 note when transformer is / t value is diaplay. Password Input Set Phase-line network Voltage ratio Save Password Input Set Phase-line network urrent ratio Save