Plc kev tswj hwm, IE programramy logic maub cia (kev tswj hwm cov txheej txheem siab, yog ib hom kev tswj hwm siab thiab muaj peev xwm paub txog kev tswj hwm cov cuab yeej siv txhua yam thiab cov txheej txheem ntau lawm.
Ua ntej, tus txheej txheem yooj yim ntawm PLC tswj
1.1 PLC muaj pes tsawg
PLC yog mas tsim ntawm kev ua haujlwm hauv nruab nrab (CPU), cov lus qhia / tso tawm module (I / O Module), hluav taws xob muab tshuaj), cov phiaj xwm fais fab thiab kev sib txuas lus thiab kev sib txuas lus. Ntawm lawv, CPU yog cov tseem ceeb tivthaiv ntawm PLC, uas yog lub luag haujlwm rau kev ua haujlwm thiab ua cov ntaub ntawv; Kuv / o module yog siv los txuas cov khoom siv sib txuas thiab cov teeb liab uas pom tau cov cim thiab cov zis; Fais fab muab hluav taws xob module muab cov fais fab ruaj khov rau PLC; tus programmer yog siv los sau thiab debug cov kev pab cuam; Thiab kev sib txuas lus sib txuas lus yog siv los paub qhov kev sib txuas lus ntawm PLC thiab lwm yam khoom siv lossis cov tshuab.
1.2 Cov ntsiab cai ua haujlwm ntawm PlC
Tus txheej txheem tseem ceeb ntawm PLC kev tswj hwm yog los txiav txim siab cov haujlwm tswj tau rau hauv cov lus qhia no rau hauv ib qho programmer, uas tau khaws cia hauv lub cim xeeb ntawm PLC. Thaum lub PLC tau khiav, CPU yuav ua rau cov lus qhia ib qho los ntawm kev txiav txim ntawm cov phiaj xwm kev tswj hwm, yog li kom paub cov cuab yeej siv kho tshuab lossis cov txheej txheem ntau lawm.
1.3 PLC cov lus programming
Plc cov kev pab cuam feem ntau siv ntaiv Daj Daim Duab (Daim Duab Qhia Ntawv, SFC) thiab cov ntawv sau ua ke (txheej txheem txheej txheem (cov lus txheej txheem txheej txheem (ST) thiab lwm yam lus programming. Ntawm lawv, ntaiv daim duab yog cov feem ntau siv cov lus programming, uas yog sawv cev rau txoj kev sib raug zoo, yooj yim to taub thiab kev pabcuam.
Thib ob, cov yam ntxwv ntawm PLC tswj
2.1 siab siab yooj yim
PLC tswj tau muaj qib siab ntawm kev hloov pauv thiab tuaj yeem siv los paub cov tswv yim tswj sib txawv los ntawm kev hloov kho txoj haujlwm raws li kev tswj hwm kev sib txawv. Qhov kev hloov pauv no tso cai plc kom yoog rau ntau yam kev lag luam ib puag ncig thiab cov txheej txheem ntau lawm.
2.2 Kev ntseeg tau
Plc adopts modular tsim, txhua qhov module yog ywj siab ntawm txhua lwm yam, muaj kev ntseeg siab. Ib qho ntxiv, plc kuj muaj tus kheej - kev kuaj mob, tuaj yeem tshawb pom tiag tiag {2} Nrhiav nws tus kheej ua haujlwm, kom paub raws sijhawm thiab daws teeb meem.
2.3 Tiag -} Sijhawm
Plc tswj tau muaj qhov zoo heev - lub sijhawm, tuaj yeem sai sai teb cov teeb liab kev hloov pauv ntawm cov txheej txheem kev tsim khoom. Qhov no tiag {- sijhawm rau kev txhim kho kev ua tau zoo thiab ua kom cov khoom lag luam zoo yog qhov tseem ceeb.
2.4 Kev Tu Kom Yooj Yim thiab nthuav dav
Caws Adc qauv tsim qauv thiab interface, uas ua rau kev saib xyuas thiab nthuav dav yooj yim heev. Cov neeg siv tau ntxiv lossis hloov I / O Modules, nthuav dav, thiab lwm yam raws li xav tau kom tau raws li kev xav tau sib txawv.
2.5 Tus phooj ywg tus phooj ywg - tshuab interface
PLC feem ntau nruab nrog kov cov screen lossis saib xyuas, uas tuaj yeem intuitidly qhia cov khoom ua haujlwm thiab cov ntaub ntawv ua txhaum, uas yooj yim rau cov neeg siv ua haujlwm thiab saib xyuas.
Thib peb, daim ntawv thov ntawm PLC tswj
3.1 machinery manufacturing
PlC tau dav siv nyob rau hauv thaj teb ntawm kev tsim khoom machinery ntawm kev tsim khoom, xws li cov kab hauv cnc, cov xaim hluav taws xob, thiab lwm yam khoom siv, txhim kho cov khoom siv ntau lawm thiab cov khoom lag luam zoo.
3.2 lub zog hluav taws xob
PLC yog tsuas yog siv nyob rau hauv lub zog hluav taws xob kom paub txoj kev soj ntsuam thiab kev tiv thaiv ntawm cov tshuab hluav taws xob, hloov pauv, kis cov kab thiab lwm yam khoom siv. Los ntawm PLC tswj, tiag {{1} Kev tshuaj xyuas thiab kev txhaum kev kuaj mob tuaj yeem txhim kho kev ntseeg tau thiab kev nyab xeeb ntawm lub system.
3.3 Petrochemical
Nyob hauv lub tshav pob ntawm petrochemical kev lag luam, feem ntau yog siv los paub kev tswj tsis siv neeg, tshuaj lom neeg ntawm cov txheej txheem ntau lawm, txo kev siv tshuaj lom neeg thiab ib puag ncig cov pa paug.
3.4 Automation tshuab
Plc hauv kev ua vaj tse yog siv los paub txog kev tswj hwm lub tsev thiab kev tswj hwm ntawm cov khoom siv tsev (xws li cov cua tshuab, huab cua txias, thiab lwm yam). Los ntawm PLC tswj, lub zog - txuag cov haujlwm thiab cov khoom siv ntse ntawm cov cuab yeej tsim tsev yuav raug pom tau.
3.5 Tsheb Thauj Mus Los
Plc hauv kev thauj mus los ntawm kev thauj mus los feem ntau yog siv los ua kom tiav kev tswj hwm cov teeb liab, tsheb ciav hlau ciav hlau, tshav dav hlau nqa khoom thiab lwm lub tshuab. Los ntawm PLC kev tswj hwm, ua haujlwm thiab kev nyab xeeb ntawm kev thauj mus los tuaj yeem hloov kho.
Plaub, kev txhim kho txoj kev loj hlob ntawm PLC tswj
4.1 Kev Sib Tw
Nrog rau kev txhim kho kev muaj kev lag luam automation technology, plc kev tswj tau yooj yim me ntsis hauv kev coj ua kev sib koom ua ke. Kev sib xyaw PLC tswj cov txheej txheem tuaj yeem sib xyaw ntau yam, xws li cov lus tsa suab, sib txuas lus, thiab lwm yam.
4.2 Network
Plc kev tswj hwm yog maj matched, los ntawm ethernet, wireless kev sib txuas lus thiab lwm yam kev sib txuas lus kom ua tiav kev sib txuas ntawm PLC thiab lwm yam khoom siv lossis cov tshuab. Networked Plc tswj system tuaj yeem yooj yim kev tshuaj xyuas cov chaw taws teeb, kev kuaj mob thiab txij nkawm, txhim kho kev pab cuam thiab kho kev ua haujlwm.
4.3 Ntse
Nrog rau kev txhim kho kev txawj ntse thev naus laus zis, plc kev tswj tau yooj yim maj hauv kev coj ua ntawm kev txawj ntse. Txawj Ntse Plc tswj tau tuaj yeem siv tshuab kev kawm, sib sib zog nqus thiab lwm cov thev naus laus zis kom ua tiav kev tswj hwm kev yoog thiab ua kom zoo ntawm cov txheej txheem ntau lawm.
4.4 Greening Greening
Nrog kev txhim kho ntawm kev paub txog ib puag ncig, plc tswj tau yooj yim maj hauv kev coj ntawm greening. Kev tswj hwm Greening Plc tuaj yeem siv zog siv zog - Kev siv tshuab ntxhua khaub ncaws thiab lwm yam kev ua paug thiab ua kom muaj kev txhim kho ib puag ncig thiab ua tiav kev loj hlob.