I-PLC luhlobo lwekhompyuter elisebenza kwiindawo ezithile zeshishini, ukuba unomdla wokwazi ukuba isebenza njani kwaye zithini Iindidi ze-PLC kubiza kakhulu kunokuba ungangena kuzo, ke qiniseka ukuba ufunda inqaku lethu apho siza kukunika lonke ulwazi olubalulekileyo.
Iindidi ze-PLC
I-PLC imele uMlawuli oCwangcisiweyo weLogic, ikhompyuter esebenza kwindawo ezinobungozi obukhulu okanye itekhnoloji ukuze isebenze njengekhonkco kwiinkqubo ezahlukeneyo zeshishini. La macandelo okwangoku asemarikeni ngolu hlobo lulandelayo:
- Iimodyuli.
- Icwecwe
- Ukubeka intaba.
- Ngepaneli yomqhubi.
- Ikhompyuter yemizi-mveliso.
- Umjelo.
- Uhlobo lweSoftware.
- Ibhendi emxinwa.
- Ibhendi ephantsi.
Idinomineyitha eqhelekileyo kuzo kukusebenza njengolawulo lokulandelelana ngokulandelelana, ukulawula intshukumo, iinkqubo, inkqubo yolawulo oluhanjisiweyo kunye nonxibelelwano kwinethiwekhi. Isakhono se-PLC sokukhohlisa, ukugcina, ukusebenza kunye nokunxibelelana kufezekisa imisebenzi elingana naleyo yekhompyuter yedesktop. Yazi nokuba yintoni i- Imbali yeeprosesa kwiNzululwazi yeSayensi yeKhompyutha.
Ikhompyuter enjalo inekhono lokufumana imiqondiso yegalelo ngokulandelelana okuthile. Baqala ukusetyenziswa ngee-1960s njengenye indlela yokusebenzisa iindlela zakudala zokuhambisa, basebenzise ulwimi lokudwelisa ulwimi kwaye kamva ujongano lomzobo obizwa ngokuba yiLadder okanye ileli yolwimi.
Okwangoku, ii-PLCs azigcini ngokulawula ukusebenza komatshini, izityalo kunye neenkqubo zorhwebo, kodwa zikwasetyenziswa kwiinkqubo zokusebenza kwezibalo, ukuphathwa kweempawu ze-analog ukwenza iindlela ezahlukeneyo zolawulo ezinje ngee-PIDs (Ngokulinganayo, ngokudibeneyo kunye nokuDalwa) ).
Iimpawu zeentlobo ze-PLC
Ukuba yinto eluncedo kakhulu kwizicelo ezahlukeneyo, ikwazile ukugcina ukumelana kwayo nokusetyenziswa kwiindawo ezahlukeneyo zeshishini, ithatha ulawulo lwazo zonke iinkqubo ezilandelelanayo kunye notshintsho olunokuthi luveliswe kwizithuba okanye kwinkqubo yoomatshini efuna uviwo lwenkqubo esembindini. . Iimpawu zayo eziphambili zezi zilandelayo:
- Bafunda imiqondiso evela kwiisenzi ezisasaziweyo.
- Benza unxibelelwano nawo onke amaqela ngexesha lokwenyani.
- Isinxibelelanisi esivumela ukusetyenziswa kunye nencoko yabasebenzi.
- Unxibelelwano lunokwenziwa kwinkqubo yokongamela eyenza umsebenzi wojongano kunye nenkqubo yokubeka iliso lula.
- Inesakhono sokuzicwangcisa kwakhona kwiindidi ezahlukeneyo zeelwimi.
- Banokufumana kwaye benze ii-odolo ngokuqhubekayo ngokuhamba kwexesha.
- Balawula amagalelo kunye neziphumo ezisasazwayo nangaphandle kwekhabinethi ye-automaton esembindini ngentambo yenethiwekhi.
Imbali yeePLC
Ekupheleni kweminyaka yama-1960, amashishini ayefuna indlela yokufumana itekhnoloji entsha ye-elektroniki eya kuthi ibonelele ngezisombululo ezingcono zokukwazi ukwenza ukutshintshwa kweenkqubo zolawulo ezazisekwe kwimijikelezo yombane ngokudlulisela, ukutshintsha kunye nezinye izinto ezazisetyenziswa. kwiinkqubo zokudibanisa uLogic weLogic. Omnye umba ekufuneka uyazi ukuba kubaluleke ngantoni Ifayibha Optical yeplastikhi.
Ngo-1968 iGeneral Motors Hydramatic, icandelo elaliphethe ukuhambisa ngokuzenzekelayo kule nkampani, lenza isicelo sezindululo zokutshintshwa kwe-elektroniki yeenkqubo zokuhambisa ngocingo. IBedford Associates ibiphumelele kwiprojekthi kwaye ibiphethe ekuphuhliseni inkampani ezinikele kuphuhliso, ukuvelisa, ukuthengisa kunye nokugcinwa kweemveliso ezintsha: iModicon (Modular Digital Controler).
UDick Morley ngomnye wabantu abebesebenza kule projekthi intsha kwaye uthathwa ngokuba ungumdali weePLCs, imveliso yeModicon yathengiswa de kwaba ngu-1977 kuGould Electronics eyathi kamva yafunyanwa yi-AEG, inkampani yaseJamani eyathi emva kweminyaka yathengiswa. Inkampani yaseFrance iSchneider Electric Global, okwangoku ezizezayo iimveliso.
Izibonelelo kunye nezinto ezingalunganga kwiindidi zePLC
Olona ncedo lukhulu kwesi sixhobo kukugcina ixesha xa kulungiswa iiprojekthi ezahlukeneyo, kunye nokuvumela ukulungiswa ukuba kwenziwe ngaphandle kweendleko ezongezelelweyo. Ii-PLCs zincinci ngobukhulu kwaye zigcinwa ngexabiso eliphantsi, zisindisa iindleko zabasebenzi kwaye zibonelela ngesakhono sokugcina ulawulo loomatshini abaliqela kwizixhobo ezifanayo.
Ezi zixhobo zinokumelana neentshukumo zoomatshini ezenziwa ngoomatshini, kwaye nasiphi na esinye isixhobo sinokuba buthathaka kangangokuba asinakuhlala ixesha elide kuzo kuba zithambekele ekusileleni okanye ekonakaleni. Akufanele uphoswe kukwazi ukuba yintoni Ubungozi beTekhnoloji.
Njengaso nasiphi na isixhobo se-elektroniki, eyona nto ingalunganga kukuba bafuna inkonzo yamagcisa ngokukodwa afanelekileyo kubo ukuba bakhathalele ukusebenza kwawo ngokufanelekileyo kunye nokugcinwa kwawo ngokufanelekileyo.
https://www.youtube.com/watch?v=-6oG7QMmLwA