Tsim kev tswj tsis siv neeg batching system raws li plc thiab multihead weigher

Author: Smartweigh-Multihead Weighter

1 Cov lus qhuab qhia Hauv kev ua haujlwm ntawm Zhongshan Smart hnyav kev tsim khoom, seasoning feem ntau yog kev sib xyaw ntawm cov khoom siv raw hauv ib qho kev faib ua feem los tsim cov khoom siv tshiab. Yog li ntawd, seasoning yog ib qho tseem ceeb ntawm kev tsim khoom hauv daim teb no. Nyob rau hauv tus txheej txheem ntawm kev ua, ntau yam raw cov ntaub ntawv yuav tsum uniformly tov nyob rau hauv nruj raws li qhov kev faib ua feem, thiab yuav tsum tau nqa tawm los ntawm seasoning machinery. Nyob rau theem no, kev ua cov nroj tsuag feem ntau siv ob txoj hauv kev. Thawj txoj kev siv phau ntawv hnyav, thiab tom qab ntawd yuav dhau los ua Kev faib ua feem ntawm ntau yam khoom siv raw yog cais rau hauv lub tshuab batching thiab sib xyaw. Lwm txoj kev yog tsis siv neeg hnyav, tag nrho tsis siv neeg sib xyaw.

Vim tias muaj ntau yam khoom siv raw khoom yog hmoov lossis granules, thaum manpower seasoning, lub cev yooj yim heev rau nqus plua plav thiab lwm yam av, ua rau muaj kev phom sij rau kev ua haujlwm, ua rau muaj kev pheej hmoo ntau lawm thiab tib neeg cov nqi peev. Yog li ntawd, manpower seasoning tsis tuaj yeem tswj hwm ntawm qhov chaw tsim kho, thiab nws yog qhov ua rau tsis sib haum, tsis tsuas yog qhov zoo tsis tuaj yeem lav, tab sis kuj yog tus nqi tswj tau nce ntxiv. Txhawm rau kom ntseeg tau cov khoom zoo thiab txhim kho cov khoom tsim tau zoo, nws tau teev tseg tias qhov tseeb thiab txhim khu kev qha tsis siv neeg batching system software yuav tsum raug xaiv. 2 Raws li qhov tsis siv neeg batching system ntawm PLC, muaj kev tswj xyuas lub computer thiab multihead weigher Nyob rau hauv lub tam sim no tsis siv neeg batching system ntawm Zhongshan Smart luj, cov neeg ua hauj lwm thawj thauj cov ntaub ntawv raw mus rau lub rhiav hnyav. Tom qab qhov hnyav tiav lawm, cov ntaub ntawv raw yog manually xa mus rau lub tshuab batching. Txhawm rau ua kom tiav cov txuj lom, lub tshuab ua haujlwm hnyav siv lub tshuab hnyav hnyav ntawm Hangzhou Sifang los ua qhov hnyav. Raws li qhov chaw nres nkoj RS232, nws txuas nrog rau kev lag luam automation server. Lub tshuab hluav taws xob muaj hluav taws xob nyob hauv chav tswj hwm lub luag haujlwm yog lub luag haujlwm rau kev sau cov txiaj ntsig ntawm qhov hnyav thiab nthuav tawm cov ntaub ntawv hnyav. , Tsis tas li ntawd, tus neeg teb xov tooj tuaj yeem tswj qhov pib thiab nres ntawm tag nrho cov txheej txheem ntawm seasoning nyob rau hauv lub ntsiab tswj chav raws li kev tswj Circuit Court.

Txoj kev zoo li no tsis muaj txiaj ntsig. Tsis tas li ntawd, cov txheej txheem DOS tau tsim thiab tsim hauv hom lus C yog khiav ntawm lub server [1], uas muaj qhov tsis zoo scalability thiab nyuaj rau tib neeg-lub computer kev sib cuam tshuam technology, thiab tsis tuaj yeem ua tiav tag nrho cov kev cai rau kev siv batching tsis siv neeg. Txhawm rau txhawm rau txhim kho kev tsim khoom kom zoo dua qub thiab tswj cov nqi, yuav tsum xaiv qhov tsis siv neeg batching system. Cov txheej txheem tshiab tau txais cov qauv kev sib raug zoo ntawm tus tswv- qhev.

Lub khoos phis tawj muaj kev lag luam yog siv los ua tus neeg rau zaub mov sab saud, thiab Siemens PLC PLC [2], soft starter thiab multihead weighter yog siv los ua cov qhev sab saud thiab qis. Cov neeg rau zaub mov yog nyob rau hauv lub luag haujlwm tseem ceeb, ua tiav kev tswj hwm kev sib txuas lus thiab kev ua haujlwm ntawm txhua tus qhev, thiab txuas RS-232 asynchronous kev sib txuas lus chaw nres nkoj ntawm lub computer tswj kev lag luam nrog PLC tom qab hloov pauv cov teeb liab mem tes, tsim kom muaj kev nyab xeeb ntawm lub cev rau kev sib txuas lus ntawm lub computer sab sauv thiab qis; Txuas lwm qhov chaw nres nkoj RS-232 ntawm tus neeg rau zaub mov mus rau qhov chaw sib txuas lus ntawm multihead hnyav los tsim ib qho kev ruaj ntseg ntawm lub cev thib ob. Lub khoos phis tawj sab saud xaiv txoj kev xaiv tsa los sib txuas lus nrog cov qhev noj ib los ntawm ib qho.

Lub khoos phis tawj sab saud xa cov txiaj ntsig ntawm kev npaj tag nrho ntawm cov haujlwm niaj hnub mus rau PLC. Thaum lub sij hawm tag nrho cov txheej txheem ntawm PLC kev ua haujlwm, lub khoos phis tawj sab saud siv cov lus qhia kev sib txuas ntawm lub khoos phis tawj sab saud los saib xyuas cov haujlwm ntawm lub khoos phis tawj qis thiab cov ntsiab lus ntawm cov ntaub ntawv cov ntaub ntawv cheeb tsam, thiab thauj cov ntaub ntawv PLC tam sim ntawd. Cov ntaub ntawv ntawm lub sijhawm tiag tiag ntawm qhov xwm txheej sab hauv thiab nws cov khoom siv ntau lub taub hau yog tso tawm rau ntawm tus tswv tsev computer software. Ntawm tag nrho, lub kaw lus software muaj cov haujlwm hauv qab no: ① Tsis siv neeg batching tag nrho. Tom qab daim ntawv qhia zais cia tau teeb tsa, lub kaw lus software cia li hnyav cov khoom xyaw raws li daim ntawv qhia zais cia yam tsis muaj kev cuam tshuam ntawm cov neeg ua haujlwm tiag tiag; ② Nws muaj cov haujlwm ntawm daim ntawv, uas tuaj yeem tsim cov ntawv tshaj tawm txhua hnub thiab cov ntaub ntawv ntawm lub sijhawm. thiab cov ntawv ceeb toom txhua hli, cov ntawv qhia txhua xyoo, thiab lwm yam.; ③ Dynamic txhim khu kev qha thiab kev hloov kho ntawm lub rooj, qhov system software pub rau cov kws tshaj lij thiab cov neeg ua haujlwm los yog cov neeg ua haujlwm ua haujlwm tiag tiag los hloov kho raws li cov txheej txheem tswj hwm, txhim kho kev tswj hwm ntawm daim ntawv qhia zais cia, thiab sau cov sijhawm thiab kev ua haujlwm tiag tiag ntawm kev hloov kho. Cov neeg ua haujlwm serial tooj; 4. Fais fab-tawm kho muaj nuj nqi, lub kaw lus software tuaj yeem kho cov ntaub ntawv ntsuas kom raug ua ntej lub hwj chim yuav raug tua thaum lub hwj chim yog tam sim ntawd tua; 5. Hauv cheeb tsam network sib koom ua haujlwm, tus neeg rau zaub mov tuaj yeem sib qhia cov ntaub ntawv cov ntaub ntawv hauv cheeb tsam hauv cheeb tsam network, thiab kev cob qhia ntau lawm yog lub luag haujlwm Cov neeg ua raws li kev tsim kho thiab lwm yam kev mob. 2.1 Kev sib xyaw ntawm lub cev Txhua qhov tsis siv neeg batching mixers yog tsim los ntawm kev siv computer, PLC, kev tsim khoom ntau lub taub hau hnyav, mos pib, vibration motor, tov khoom, sensor, conveyor siv, thiab lwm yam.

Lub khoos phis tawj tswj hwm kev lag luam sab saud qhia txog tib neeg-khoos phis tawj thev naus laus zis thev naus laus zis nplooj ntawv, thiab ua haujlwm xws li kev tswj cov ntaub ntawv cov ntsiab lus nkag, tswj cov ntaub ntawv, cov ntaub ntawv cov ntaub ntawv tso saib cov ntaub ntawv, khaws cia, txheeb xyuas cov ntaub ntawv thiab cov ntaub ntawv. Lub khoos phis tawj sab saud siv IPC810 muaj kev tswj hwm lub computer. Nws cov dej num tseem ceeb yog raws li hauv qab no: Cov neeg ua haujlwm automation ua ntej thauj cov ntawv qhia zais cia ntawm qee tus lej raws li qhov kev txiav txim ntawm cov neeg ua haujlwm ua haujlwm tiag tiag, thiab tom qab ntawd, raws li kev faib ua feem thiab kev txiav txim ntawm seasoning hauv daim ntawv qhia zais cia, xa mus rau hais kom pib lub caij rau PLC, kom PLC tuaj yeem pib cov software tshwj xeeb. Launcher. Nyob rau hauv tag nrho cov txheej txheem ntawm seasoning, muaj automation neeg rau zaub mov siv txoj kev xaiv los thauj cov lus raws li txoj cai ntawm PLC nyob rau hauv lub sij hawm ntawm lub sij hawm los ua tus tswv lub lag luam ntawm PLC thiab nws subordinate tshuab; Cov ntaub ntawv hnyav cov ntaub ntawv, raws li lub tswv yim seasoning, thaum qhov hnyav yog ze rau tus nqi preset hauv daim ntawv qhia tsis pub lwm tus paub, tus neeg rau zaub mov xa cov lus txib mus rau PLC kom xaus cov seasoning. Thaum tag nrho cov ntaub ntawv raw ntawm daim ntawv qhia tsis pub lwm tus paub tau npaj, tag nrho cov txheej txheem ntawm tag nrho cov seasonings raug tshem tawm, tos rau qhov kev txiav txim ntawm cov neeg ua haujlwm tiag tiag.

Thaum lub sijhawm tag nrho cov txheej txheem ntawm kev ua haujlwm software, PLC sib txuas lus nrog tus tswv lub khoos phis tawj software hauv lub sijhawm tiag tiag los xyuas kom meej qhov sib xws ntawm cov ntaub ntawv cov ntaub ntawv tso tawm ntawm nplooj ntawv thiab cov ntaub ntawv tshwj xeeb ntawm qhov chaw. Txhua tus tuaj yeem xa mus rau PLC tam sim ntawd. Lub luag haujlwm tseem ceeb ntawm PLC suav nrog: ① Txais cov lus qhia thawb los ntawm software ntawm lub khoos phis tawj sab saud, thiab tswj kev pib, nres thiab ceev ntawm lub vibration lub cev muaj zog raws li lub tshuab muag muag; ②Load lub lag luam raws li txoj cai ntawm lub mos oob khab ua haujlwm nyob rau hauv lub sij hawm ntawm lub cim xeeb ntaub ntawv cov ntaub ntawv cheeb tsam yog loaded los ntawm lub industrial tswj lub computer; ③ Npaj ntau yam xwm txheej ntawm nws tus kheej nyob rau hauv daim ntawv ntawm cov lus raws li txoj cai, thiab lub computer tswj kev lag luam tuaj yeem thauj khoom tam sim ntawd. 2.2 Cov txheej txheem tswj thiab tag nrho cov txheej txheem ntawm seasoning Raws li kev soj ntsuam ntawm cov yam ntxwv ntawm tag nrho cov txheej txheem ntawm seasoning, nws tau txais tias tag nrho cov txheej txheem ntawm seasoning muaj cov yam ntxwv hauv qab no: (1) Lub hom phiaj ntsuas yog unilateral irreversible system software . Tsis muaj txoj hauv kev rau cov khoom siv raw rov qab mus rau txoj siv conveyor dua los ntawm lub tshuab batching.

(2) Nws muaj lub sijhawm lag luam tseem ceeb. Thaum cov seasoning ncav cuag tus nqi preset, PLC tswj lub cev muaj zog kom tsis txhob kis cov khoom siv raw. Lub sijhawm no, muaj qee cov ntaub ntawv raw ntawm txoj siv conveyor uas tsis tuaj yeem yuav, yog li software system muaj lub sijhawm tseem ceeb. (3) Cov yam ntxwv tswj tau yog tias lub zog hluav taws xob hloov tau.

Qhov pib thiab nres kev ua haujlwm ntawm qhov system software yog txhua qhov hloov pauv ntau. (4) Tsis siv neeg batching system yog linear hauv txhua qhov chaw ua haujlwm. Yog li ntawd, peb coj mus rau hauv tus account kev siv cov kev tswj xws li ceev ceev, qeeb qeeb, thiab thaum ntxov kis tau tus mob ntawm qhov kev txiav txim pub mis, thiab kev siv PLC tus kheej-locking thiab interlocking tshuab los xyuas kom meej tus du txoj kev loj hlob ntawm lub seasoning.

Tom qab lub kaw lus software tau pib, lub khoos phis tawj tswj kev lag luam xa cov ntaub ntawv teeb liab ntawm qhov pib pub mis rau PLC, thiab PLC tswj cov pib mos los tsav lub cev muaj zog pib noj sai. Tsis tas li ntawd, cov neeg rau zaub mov muaj automation txuas ntxiv thauj cov ntaub ntawv hnyav ntawm cov khoom siv ntau lub taub hau raws li kev sib txuas lus serial. Thaum tus nqi net hnyav nyob ze rau tus nqi preset, muaj automation neeg rau zaub mov xa cov cai tswj kev txiav txim pub rau PLC. Nyob rau lub sijhawm no, PLC tswj qhov muag muag kom ua tiav kev pub mis qeeb, thiab tus nqi preset thiab kev pub mis tshwj xeeb yuav raug txiav txim siab raws li cov khoom siv raw ntawm cov khoom sib txuas ua ntej. Thaum qhov kev ua yuam kev thiab cov khoom seem seem ntawm cov qauv sib kis yog qhov txawv txav, PLC tau xa tawm cov lus txib txiav tawm, uas yog ua tiav los ntawm lub tshuab hluav taws xob, thiab tom qab ntawd tswj lub cav kom kaw. Cov kauj ruam yog qhia nyob rau hauv daim duab 1. Tsis siv neeg batching system software 3 Industrial automation server software kev loj hlob Cov hauj lwm tseem ceeb niaj hnub ntawm lub computer tswj kev lag luam yog raws li nram no: (1) Qhia cov animation tso saib cov ntaub ntawv ntawm tag nrho cov txheej txheem ntawm seasoning.

(2) Xa tawm cov cai tswj rau PLC thiab thauj cov haujlwm ntawm PLC. (3) Thauj cov ntaub ntawv hnyav ntawm lub tshuab hnyav ntau lub taub hau, tso saib tus nqi hnyav ntawm lub vijtsam zaub, thiab thawb cov lus txib mus rau PLC raws li cov ntaub ntawv hnyav. (4) Cov ntaub ntawv nug thiab daim ntawv, khaws cov ntaub ntawv qhia caij nyoog, luam daim ntawv.

(5) Kev txhim kho thiab hloov kho ntawm daim ntawv qhia zais cia. (6) Lwm lub luag haujlwm xws li lub tswb nrov rau kev ua yuam kev hauv cov khoom noj. 3.1 Cov nplooj ntawv tsim ntawm lub caij nplooj ntoos hlav xov tooj software Cov kev lag luam tswj lub computer daim ntawv thov Longchuanqiao configuration design scheme industrial touch screen, industrial control system configuration yog tiag tiag kev txhim kho software kev pab cuam platform uas tuaj yeem tsim los ntawm cov neeg siv khoom raws li lawv tus kheej xav tau.

Peb tuaj yeem tsim thiab tsim ib tus phooj ywg kev lag luam kov npo rau txhua qhov kev soj ntsuam video ntawm cov kev pabcuam platform raws li cov txheej txheem thev naus laus zis, thiab tus neeg teb xov tooj tuaj yeem cuam tshuam nrog cov tshuab thiab khoom siv hauv lub sijhawm tiag tiag raws li nplooj ntawv no. Longchuanqiao lub xov tooj ntawm tes software yog HMI / SCADA kev lag luam tswj automation configuration, uas muab cov cuab yeej txhim kho nrog kev sib xyaw ua ke thiab cov ntaub ntawv pom. Cov software no muaj cov yam ntxwv hauv qab no: (1) Ntau yam kev sib txuas lus.

Longchuan Choj configuration [3] yog haum rau cov kev sib txuas lus hauv qab no functions: 1) Nws yog haum rau serial kev sib txuas lus txoj kev xws li RS232, RS422, thiab RS485, raws li zoo raws li txoj kev xws li repeater, xov tooj hu, xov tooj xaiv thiab hu. 2) Ethernet interface kev sib txuas lus kuj tseem siv tau rau cable TV Ethernet interface thiab wireless network Ethernet interface. 3) Tus tsav tsheb software ntawm txhua lub tshuab thiab cov cuab yeej siv tau rau GPRS, CDMA, GSM thiab lwm yam tshwj xeeb hauv Internet.

(2) Kev txhim kho yooj yim thiab tsim qauv software. Ntau yam khoom siv thiab kev tswj hwm tsim muaj HMI kev txhim kho muaj zog thiab tsim qauv software; kev txhim kho kev sib txuas xim thiab asymptotic xim los daws qhov teeb meem los ntawm qhov chaw uas ntau lub xov tooj zoo sib xws software siv ntau cov xim sib txuas thiab asymptotic xim, uas yog ib qho kev hem thawj loj rau kev hloov kho interface Qhov teeb meem ntawm kev kub ceev thiab kev ua haujlwm siab ntawm kev ua haujlwm software; ntau cov ntaub ntawv ntawm vector khoom sub-graphs ua kom yooj yim dua los ua engineering project interface; qhia txog hom kev xav txog kev xav, embedded indirect ywj pheej variables, intermediate variables, database query ywj variables, Muaj feem xyuam rau kev cai functions thiab kev cai txiav txim. (3) Qhib.

Qhov qhib ntawm Longchuan Choj configuration yog mas tshwm sim nyob rau hauv cov nram qab no yam: 1) Siv Excel los xauj cov database query nrog VBA. 2) Lub xov tooj ntawm tes software yog qhib qhov system architecture, uas muaj feem xyuam rau DDE, OPC, ODBC / SQL, AcTIveX, thiab DNA specifications. Nws muab cov kev tshawb nrhiav sab nraud hauv ntau hom ntawv xws li OLE, COM / DCOM, dynamic link tsev qiv ntawv, thiab lwm yam, uas yooj yim rau cov neeg siv khoom siv ntau yam kev loj hlob ib puag ncig (xws li VC ++, VB, thiab lwm yam) kom ua tiav qhov tob. kev loj hlob theem nrab.

3) Lub system architecture ntawm Longchuan Choj configuration I/O tsav software yog ib tug qhib qauv, thiab ib feem ntawm lub hauv paus code ntawm nws lub qhov (sockets) tau luam tawm tag nrho, thiab cov neeg muas zaub muaj peev xwm tsim tsav tsheb software ntawm nws tus kheej. (4) Database query function. Lub Longchuan Choj configuration yog embedded nrog ib tug lub sij hawm series databases, thiab ntau yam functional blocks yog embedded nyob rau hauv lub sij hawm series database rau cov ntaub ntawv ua txoj kev thiab cia, uas muaj peev xwm ua kom tiav summarization, statistical tsom xam, manipulation, thiab linearization. lwm yam muaj nuj nqi. (5) Muaj feem xyuam rau ntau lub tshuab thiab khoom siv thiab cov tsheb npav.

Nws yog tsim rau PLC, xws li, ntau yam twj paj nruag, mobile ntse davhlau ya nyob twg thiab ntse tswj module tsim los ntawm cov tuam txhab nto moo tshaj plaws thoob plaws ntiaj teb; Tsis tas li ntawd, nws kuj tseem tsim nyog rau cov txheej txheem computer interfaces xws li Profibus, Can, LonWorks thiab Modbus. 3.2 Qib I / O ntawm lub kaw lus Longchuan Choj teeb tsa siv lub sij hawm series cov ntsiab lus los qhia txog I / O cov ntsiab lus. Tom qab kev tshuaj xyuas, cov software system yuav tsum muaj peb lub ntsiab lus I / O, thiab ob lub ntsiab lus siv cov ntaub ntawv siv los tswj kev pib thiab nres ntawm lub cev muaj zog raws li PLC. Yog li ntawd, cov ntaub ntawv xov xwm kev sib txuas ntawm ob lub ntsiab lus no raug xaiv los ua ob cov ntaub ntawv ntim I/Os ntawm PLC. Tawm.

Ib qho simulation point yog siv los sawv cev rau cov ntaub ntawv ntawm lub sijhawm tiag tiag uas tau thauj khoom los ntawm multihead weighter, yog li cov ntaub ntawv cov ntaub ntawv ntawm qhov taw tes txuas nrog rau qhov ntsuas qhov tseeb ntawm multihead weighter. 4 Kev sib txuas lus programming tsim Kev sib txuas lus programming tsim muaj peb ntu, thawj ntu yog kev sib txuas lus ntawm server thiab PLC; qhov thib ob yog kev sib txuas lus ntawm tus neeg rau zaub mov thiab lub multihead weighter; qhov thib peb yog kev sib txuas lus ntawm PLC thiab cov pib muag muag. 4.1 Kev sib txuas lus ntawm tus neeg rau zaub mov thiab PLC feem ntau yog embedded nrog nrov PLC tsav software. Ua ntej, lub tshuab tshiab PLC virtual yog tsim nyob rau hauv Longchuan Choj teeb tsa. Cov qauv thiab cov lus qhia ntawm lub tshuab virtual yuav tsum ua raws li kev siv tiag tiag. PLC qauv thiab specifications yog tib yam. Yog tias qhov yuav tsum tau muaj PLC qauv specifications tsis tuaj yeem pom nyob rau hauv kev teeb tsa, lub xov tooj ntawm tes software chaw tsim khoom tuaj yeem raug tso cai los tsim thiab tsim tus tsav tsheb PLC tshiab ntawm hom no thiab cov lus qhia tshwj xeeb dawb xwb.

Lub tshuab virtual yog siv los tsim lub tshuab tiag tiag. Ntawm no, PLC siv los ntawm txhua tus yog SimensS7-300, thiab cov neeg rau zaub mov tau teeb tsa los sib txuas lus nrog PLC raws li kev sib txuas lus sib txuas 1. 4.2 Kev sib txuas lus ntawm cov neeg rau zaub mov thiab cov khoom siv ntau lub taub hau rau lub multihead weigher, peb siv lub multihead weighter los ntawm Hangzhou Sifang. . Txhawm rau ua kom muaj kev sib txuas lus ntawm lub ntsuas vaj huam sib luag thiab kev teeb tsa zoo heev, peb tshwj xeeb tshaj yog tso cai rau Longchuanqiao Enterprise los tsim cov ntsuas vaj huam sib luag. Tus tsav tsheb software yog tsim. Ua ntej tshaj plaws, peb xaiv hom khoom siv tshuab tsim nyog los ntawm cov ntawv teev npe tsav teeb tsa, thiab rau hom no, tsim cov khoom siv tshuab virtual rau kev ua haujlwm ntawm cov khoom siv lub taub hau tiag tiag, thiab tom qab ntawd teeb tsa qhov chaw nres nkoj sib txuas lus ntawm lub dashboard thiab lub computer thiab kev sib txuas lus. cov txheej txheem.

4.3 Kev sib txuas lus ntawm PLC thiab cov pib muag muag Vim tias muaj ntau yam khoom siv raw hauv kev cob qhia kev tsim khoom, peb tau teeb tsa ob peb txoj hlua conveyor kom zoo dua seasoning. Yog li ntawd, ib qho PLC ntawm qhov tsis siv neeg batching system yuav tsum tau txuas nrog ntau lub pib muag muag. Yog li ntawd, peb siv Profibus system tsheb npav nruab nrab ntawm PLC thiab cov pib muag muag kom ua tiav kev sib txuas lus, ntxig rau Profibus tshwj xeeb kev sib txuas lus tswj module rau hauv qhov muag muag, thiab teeb tsa cov ncauj lus kom ntxaws chaw nyob ntawm tus qhev chaw nres tsheb ntawm lub mos pib, thiab tom qab ntawd txuas raws li. mus rau Profibus xov tooj cua zaus. Tus maub los txuas nrog PLC, thiab PLC ua tiav lub laub thiab txais tos ntawm hom lus mus rau qhov pib mos raws li qhov programming, xa cov lus ua haujlwm mus rau qhov pib mos, thiab thauj cov lus raws li txoj cai los ntawm lub tsev muag muag. CPU315-3DP yog siv los ua Profibus sau npe, thiab txhua tus pib muag muag uas sib txuas lus nrog lub npe sau tuaj yeem suav tias yog Profibus qhev chaw nres tsheb.

Thaum lub sij hawm kev sib txuas lus, lub npe sau npe xaiv lub chaw nres tsheb qhev kom xa cov ntaub ntawv raws li cov ncauj lus kom ntxaws chaw nyob hauv cov lus sib txuas lus. Lub chaw nres tsheb qhev nws tus kheej tsis tuaj yeem xa cov ntaub ntawv nquag, thiab txhua lub chaw nres tsheb qhev tsis tuaj yeem ua tam sim ntawd xa cov ntaub ntawv cov ntsiab lus. Cov qauv pib muag muag thiab cov lus qhia tshwj xeeb siv hauv cov software software yog tag nrho Siemens MicroMaster430 series khoom [4].

Tus yuam sij kev sib txuas lus tseem ceeb ntawm PLC thiab tus pib muag muag muaj ob lub ntsiab lus. Qhov thib ib yog cov ntaub ntawv xov xwm, thiab qhov thib ob yog lo lus manipulation thiab lo lus xwm txheej. (1) Kev sib txuas lus hom ntawv.

Cov hom ntawv ntawm txhua cov lus pib nrog tus cim STX, tom qab ntawd qhov ntev qhia LGE thiab tus lej ntawm bytes ntawm cov ncauj lus kom ntxaws chaw nyob ADR, ua raws li cov ntaub ntawv xaiv cov ntaub ntawv txheeb xyuas. Cov lus hom ntawv xaus nrog lub ntes BCC ntawm cov ntaub ntawv xov xwm thaiv. Cov npe tseem ceeb Field tau qhia raws li hauv qab no: STX teb yog ib-byte ASCII tus cim (02hex) uas qhia txog qhov pib ntawm cov ntsiab lus. LGE cheeb tsam yog ib byte, qhia tus naj npawb ntawm bytes ua raws li cov ntsiab lus ntawm cov ntaub ntawv no. ADR cheeb tsam yog ib byte, uas yog cov ncauj lus kom ntxaws chaw nyob ntawm qhov chaw nres tsheb node (piv txwv li, lub soft starter).

BCC cheeb tsam yog checksum nrog qhov ntev ntawm ib byte, uas yog siv los xyuas seb cov ntsiab lus ntawm cov ntaub ntawv puas tsim nyog. Nws yog tag nrho cov lej ntawm bytes ua ntej BCC hauv cov ntsiab lus“XOR”qhov tshwm sim ntawm kev suav. Yog tias cov ntaub ntawv cov ntsiab lus tau txais los ntawm tus pib muag tsis raug raws li qhov txiaj ntsig ntawm kev txheeb xyuas, nws yuav pov tseg cov ntaub ntawv cov ntsiab lus, thiab yuav tsis xa cov ntaub ntawv teb rau lub npe sau npe.

(2) Manipulation lo lus thiab xwm txheej lo lus. Lub PLC tuaj yeem nyeem thiab sau tus nqi sib txawv ntawm tus pib muag muag raws li PKW thaj tsam ntawm qhov pib muag muag, thiab tom qab ntawd hloov lossis tswj lub xeev khiav ntawm qhov muag muag. Hauv qhov system software no, PLC nyeem cov ntaub ntawv cov ntaub ntawv hauv cheeb tsam no thiab muab tso rau hauv ib qho chaw tshwj xeeb cov ntaub ntawv xov xwm rau lub computer tswj kev lag luam kom pom, thiab cov txiaj ntsig pom qhia cov ntaub ntawv ntawm lub computer tswj kev lag luam.

5 Cov txiaj ntsig Lub kaw lus software ua tiav qhov yuav tsum tau ua haujlwm tsis siv neeg txhua hnub raws li kev sib koom tes ntawm kev tswj hwm kev lag luam, PLC thiab cov pib muag muag. Lub kaw lus software tau raug xa thiab siv txij li lub Tsib Hlis 2008. Qhov hnyav txhua hnub yog 100 tons, thiab 10 daim ntawv qhia tsis pub lwm tus paub. nce thiab nqis, nws tuaj yeem tsis tsuas yog tso saib cov xwm txheej ua haujlwm ntawm cov ntaub ntawv hauv lub sijhawm tiag tiag, tab sis kuj qhia cov haujlwm ntawm daim ntawv qhia zais cia hloov pauv thiab hloov kho dua tshiab; cov lus qhia ua haujlwm tshwj xeeb, lub kaw lus software ua haujlwm zoo thiab ntseeg tau, kev lag luam kov lub vijtsam zoo nkauj thiab muaj kuab heev, thiab kev ua haujlwm tiag tiag yog yooj yim. Tsis tas li ntawd, lub kaw lus software txais kev tsim kho kev tsim kho, Nws tuaj yeem muab kev yooj yim rau kev hloov kho tom ntej.

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