(Programmable Logic Controller, PLC luv luv), lub tshuab hluav taws xob digital nrog lub microprocessor, lub tshuab hluav taws xob digital logic rau kev tswj tsis siv neeg, uas tuaj yeem thauj cov lus qhia tswj rau hauv lub cim xeeb rau kev khaws cia thiab ua tiav txhua lub sijhawm. Programmable maub los yog tsim los ntawm CPU sab hauv, kev qhia thiab cov ntaub ntawv nco, lub tswv yim thiab tso zis, lub zog module, digital simulation thiab lwm yam units. PLCs tuaj yeem tau txais (cov tswv yim) thiab xa tawm (tso tawm) ntau hom hluav taws xob lossis hluav taws xob thiab siv los tswj lossis saib xyuas yuav luag txhua yam ntawm cov tshuab thiab hluav taws xob.
Tus thawj programmable logic maub los tsuas muaj kev ua haujlwm ntawm kev tswj xyuas Circuit Court, yog li nws tau hu ua programmable logic controller. Tom qab ntawd, nrog rau kev txhim kho tas mus li, cov khoos phis tawj no nrog cov haujlwm yooj yim thaum pib tau suav nrog kev tswj hwm kev tswj hwm, kev tswj hwm ntu ntu, thiab kev tswj hwm analog. , ntau lub khoos phis tawj sib txuas lus thiab ntau lwm yam haujlwm, lub npe kuj tau hloov mus rau Programmable Controller (Programmable Controller), tab sis vim nws cov ntawv luv kuj yog cov ntawv luv ntawm PC thiab Personal Computer (Personal Computer) tsis sib haum xeeb, thiab vim yog siv ntau xyoo, tib neeg Lub sij hawm programmable logic maub los tseem siv tau ntau zaus, thiab cov acronym PLC tseem siv nyob rau hauv cov ntsiab lus.
Tam sim no kev siv cov programmable logic controllers nyob rau hauv kev lag luam yog heev ze rau ntawm lub teeb yuag lub computer, thiab txawm lub programmable automation maub los (Programmable Automation Controller, hu ua kev sib txuas ntawm tus kheej lub computer (siv lub embedded operating system) thiab PLC. Architecture tau tshwm sim. Programmable logic controllers yog siv dav hauv kev lag luam kev lag luam tam sim no. Hauv kev tswj hwm kev lag luam, daim ntawv thov ntawm PLC tswj tshuab tau dhau los ua tus tswv cuab tseem ceeb ntawm kev lag luam.