I. TXHAIS LOS NTAWM PLC
Programmable Logic maub los (programmolable logic maub los) raug hais raws li cov ntawv thov hauv cov kev lag luam digital thiab cov kev siv tshuab hluav taws xob. Nws siv chav kawm ntawm Programmable concenations, kev tswj hwm kev tswj hwm thiab cov kev tswj hwm cov neeg siv khoom lag luam, suav nrog cov cuab yeej siv hluav taws xob lossis cov khoom siv sib xyaw ua ke thiab cov khoom siv sib xyaw ua ke los tswj cov khoom siv. Plc yog ib qho kev tswj hwm dav dav raws li microprocessor thiab kev sib xyaw ua ke thev naus laus zis thiab kev sib txuas lus thev naus laus zis. Nrog rau kev kawm ntawm science thiab thev naus laus zis thiab kev txhim kho kev txuas ntxiv ntawm cov kev tswj hwm kev txhim kho, cov haujlwm txuas ntxiv ntxiv, cov lus txhais yuav hloov.
Ii. Tus qauv ntawm PLC muaj pes tsawg
Programmable mactionly ib lub khoos phis tawm tshwj xeeb rau kev tswj hwm kev lag luam, feem ntau muaj cov microcomputer yog ib qho zoo ib yam, feem ntau muaj tsib ntu hauv qab no:
1. Kev ua haujlwm hauv nruab nrab.Cov kev ua raws li thiab lej ua haujlwm, tswj tag nrho cov kab ke, kom nws ua haujlwm hauv kev sib koom tes;
2. Nco.Siv los khaws cov txheej txheem kev soj ntsuam, cov kev pab cuam neeg siv, cov qauv kev sib tw thiab lwm cov ntaub ntawv;
3. Interface circuitfation.Nws yog PLC thiab teb cov khoom siv thiab cov khoom siv hluav taws xob sib chwv, cov khoom siv / cov khoom siv sib txuas / chaw sib txuas lus sib cuam tshuam, thiab lwm yam;
4. Tawm tswv yim thiab tso zis tawm.Inputor Circuit Court yog siv los cais cov teeb liab cov teeb liab thiab qib hloov dua siab tshiab; Cov zis hluav taws xob yog siv los ua kom ua kom muaj txiaj ntsig ntawm PLC thiab qib hloov dua siab tshiab, tsav tsheb teb;
5. Khoom Siv Hluav Taws Xob.Suav nrog lub system hluav taws xob muab, standby hwj chim thiab lub zog tiv thaiv kev tiv thaiv fais fab mov.
III. Tus qauv ua hauj lwm ntawm PlC
Plc siv ib txoj kev sib txawv ntawm kev ua haujlwm los ntawm cov microcomputer - scanning Technology. Thaum lub PLC tau muab tso rau hauv kev ua haujlwm, nws txoj haujlwm tiav rau hauv hom cyclic, feem ntau faib ua peb theem Kev ua tiav ntawm peb theem saum toj no yog hu ua kev ua voj voog scanning. Thaum lub sijhawm ua haujlwm tag nrho, PLC CPU rau qee qhov kev ntsuas nrawm dua cov ntsiab lus saum toj no, cov ntsiab lus ntawm tus kheej)
Cov neeg siv yuav tsum tau teeb tsa qhov ntau ntawm voltage, zaus ntawm lub hom phiaj hloov chaw digital teev cov hom phiaj no. Tus neeg siv tau nce ncaj qha lossis txo qis kev ua haujlwm ntawm cov pob tes hloov kom tau txais cov hom phiaj xav tau. Tom qab teeb tsa ntawm DIP hloov, nyem rau "Ok" khawm, tus nqi yog xa mus rau cov nqi hauv PlC, thiab cov nqi ntawm tus nqi hauv lub PLC tau teeb tsa hauv cov khoom ntawm cov pob tes hloov. Cov hmoov ntau, qhov tseeb thiab qhov chaw nyob ntawm tus nqi hauv chav tsev sab hauv ntawm PLC tau teeb tsa hauv cov khoom ntawm cov pob tes.
Raws li cov txheej txheem ua haujlwm, lub vijtsam kov tau muab faib ua plaub ntu, kev ua haujlwm zoo nkauj, pom qhov tseeb thiab ua haujlwm ib puag ncig ntawm kov cov vijtsam. Nyob rau txawv teb chaws lub teb chaws, kov tshuaj ntsuam kov tau ntev heev, xws li: micro kov, elo thiab lwm cov tuam ntxhab muaj ze li ntawm ob xyoos ntawm kev tsim keeb kwm; Nyiv Nisha, Gunze thiab yog li muaj ntau tshaj 10 xyoo ntawm kev ua haujlwm. Hauv kev txhim kho cov khoom siv thev naus laus zis, Sab Hnub Tuaj thiab Sab Hnub Poob yog txawv, Europe thiab Asmeskas actic hom kev txhim kho, cov khoom lag luam rau feem ntau ntawm cov khoom loj; Nyiv lub vijtsam kov yog yog plaub-hlau tiv taus raws li lub ntsiab kev coj ntawm kev loj hlob, cov khoom mus rau qhov me me thiab nruab nrab raws li lub hom phiaj tseem ceeb; Taiwan thiab Kaus Lim Qab Teb, feem ntau ntawm cov tuam ntxhab yog ze rau cov taw ntawm Japanese rau kev txhim kho ntawm plaub-xaim tiv taus feem ntau.
Kov yog ib qho yooj yim thiab muaj peev xwm tshaj plaws ntawm tib neeg ntawm tib neeg. Muaj ntau cov laj thawj los siv cov kev siv tshuab kov, suav nrog cov ntawv thov mus txwv thiab kev nkag tau ntawm ob qho kev lag luam tawm ntawm qhov chaw hnyav. Kov ntxaij vab tshaus ua haujlwm los ntawm kev faib cov duab duab duab ua ntej rau kev sib tw ua ntej (kev sib raug zoo ntawm kev daws teeb meem thiab kev daws teeb meem). Kov ib tug quadrant ntawm cov ntawv qhia zaub mov txiav txim siab ib tug subroutine nrog tib cov nyhuv uas siv tus nas lossis ntaus ib qho lus txib ntawm cov kab kom sai. Muaj tsib feem nrog rau hauv touchscreen thev naus laus zis: tus coj LED, tus maub los, tus neeg tsav tsheb, thiab CPU hauv lub touchscreen. TouchScreens yog qhov yooj yim tshaj plaws thiab tshaj plaws txoj kev ncaj qha kom ua tiav kev sib cuam tshuam ntawm tus neeg siv thiab lub computer. Txawm hais tias kov tau cov thev naus laus zis yog cov neeg siv khoom tshiab nrog cov touchscreens tau nyob rau hauv lub sijhawm ntev heev: koj txhais tes ncav tes tau yuav luag txhua tus menyuam yaus thiab cov neeg laus. Cov tuam txhab ua ntau yam kev lag luam tau ua tiav cov nqi hluav taws xob ntawm cov touchscreens hauv lawv tus kheej cov ntawv thov.
Airlines siv nws los simulate lub txee thiab cov tsheb ciav hlau ya dav hlau; touchscreens ntawm cov locomotives yog siv los tso cov xwm txheej ntawm kev ua haujlwm qhia hauv txhua qhov kev qhia; Tuam txhab tuam vaj muaj tsev siv nws kom pab tau cov neeg yuav khoom hauv tsev kom pom cov xim muaj zog ntawm cov khoom ntiag tug ntawm cov ntiv tes ntawm cov ntiv tes; Cov khw noj mov siv nws mus rau hauv cov khw hauv khw POS TERTINALS; Thiab bank ATMs siv nws los ua kom yooj yim rau kev ua haujlwm ntawm cov neeg siv 'kev tshem tawm thiab cov nyiaj tso cia.
Hla txhua qhov kev lag luam, cov txiaj ntsig ntau ntawm cov neeg siv thev naus laus zis ua haujlwm zoo li qub: thiab tsis muaj kev kawm tshwj xeeb hauv cov khoos phis tawj. Kev siv cov touchscreens zoo tshem tawm kev tshem tawm cov neeg tsav tsheb yuam kev vim yog cov ntawv qhia zaub mov tseeb muaj rau tus neeg siv khoom. Kov npo nyob rau hauv qhov tseeb kev nkag ntawm cov tswv yim thiab cov zis siv los ntawm cov keyboard thiab nas muaj zog, tuaj yeem tiv thaiv txhua hom digital media, tuaj yeem tiv thaiv txhua hom kev sib xyaw ntawm cov ntawv nyeem, yuav tsis cuam tshuam los ntawm cov ntawv sau ua ke; Kev siv cov tshuaj ntsuam kov kom ntseeg tau tias qhov chaw yuav tsis nkim vim tias cov cuab yeej tawm tswv yim tau muab tso rau hauv cov zaub.