PLCS (Programmable Logic Controllers) thiab Industrial PCS (tswj cov khoom siv hauv tshav pob, tab sis muaj qee qhov sib txawv ntawm lawv. Nov yog qee qhov sib txawv ntawm lawv:
Ua ntej, txoj haujlwm thiab lub hom phiaj:
Plc yog cov qauv tshwj xeeb digital, feem ntau yog siv rau kev tswj hwm thiab tiav kev ua haujlwm hauv kev muaj tshuab automation. Nws yog ib qho tseem ceeb piav qhia cov ncauj lus thiab cov zis tawm, cov haujlwm logic, cov ntaub ntawv tau txais thiab tswj kev ua tiav.
Ib qho kev lag luam tswj lub computer yog ib qho khoom siv dav dav dav dav siv nyob rau hauv ntau hom teb xws li kev lag luam automation tswj, kev tswj neeg hlau, thiab kev kuaj xyuas cov neeg hlau. Los ntawm kev ua haujlwm pub dawb, nws tuaj yeem paub ntau yam ntawm cov haujlwm tswj tau.
Thib ob, programmanity:
Plc Programmability yog feem ntau tau cuam tshuam hauv kev siv cov lus tshwj xeeb ua haujlwm, xws li ntaiv cov duab kos (ntaiv ntaiv) lossis cov ntawv sau (txheej txheem txheej txheem). Cov lus programming no yooj yim los kawm thiab siv, tab sis kuj tsawg.
Muaj cov tuam txhab muaj peev xwm siv ntau hom lus programming, xws li c {{0} {{0} {0} {0 tab sis cov chaw ua haujlwm siab dua, tab sis nyuaj tej zaum yuav nyuaj.
Thib peb, cov kho vajtse thiab interface:
Plc cov ntawv cog lus feem ntau yog suav nrog RS485 thiab ETHNET cuam tshuam nrog CPU thiab cov neeg sib txuas nrog cov chaw nres tsheb sib txuas lus rau cov ntaub ntawv sib txuas lus.
Kev tswj cov khoos phis tawm, ntawm qhov tod tes, feem ntau muaj ntau yam kev sib txuas lus, xws li PCI, Ethernet chaw nres nkoj, USB, thiab lwm yam nrog lwm cov khoom siv.
Plaub, kev ruaj khov thiab ntseeg tau:
Plc yog tsim tshwj xeeb rau ib puag ncig kev lag luam, nws cov khoom siv thiab kev pom zoo, muaj qhov kev ntseeg siab, haum rau cov haujlwm muaj kev lag luam ntev.
Txawm hais tias lub computer industrial muaj ib co degree ntawm kev ruaj ntseg thiab kev ntseeg tau, tab sis vim tias ntawm ib puag ncig muaj kev lag luam yuav tsis ruaj khov li PLC.
Thib tsib, tus nqi:
Vim hais tias ntawm cov kev ua haujlwm zoo thiab kev ua haujlwm siab ntawm kev lag luam tswj cov khoos phis tawm, nws tus nqi kuj yog siab.
Plc kev ua tau yog txwv, tab sis tus nqi kuj yog tsawg, haum rau kev siv hauv cov ntaub ntawv thov kev lag luam.