Tsev > Exhibition > Ntsiab lus

Programmable logic controller Overview

Mar 11, 2019

PLCs tau los ntawm cov khoom me me uas muaj kaum tawm ntawm cov khoom siv thiab kev tawm (I / O), nyob hauv ib qho vaj tse nrog tus processor, rau cov khib nyiab loj sib txuas nrog cov suav ntawm ntau txhiab tus I / O, thiab feem ntau sib tshua lwm yam PLC thiab SCADA.


Lawv tuaj yeem tsim kom muaj ntau cov kev sib tham ntawm digital thiab analog I / O, qhov ntev ntawm kev kub ntxhov, kev tiv thaiv rau cov hluav taws xob, thiab tsis kam ua rau kev vibration thiab kev cuam tshuam. Cov kev zov me nyuam los tswj cov kev lag luam hauv tshuab yog feem ntau muab khaws cia rau hauv cov roj teeb-backed-up lossis tsis nco lub cim xeeb.


Nws yog los ntawm kev lag luam tsheb hauv Tebchaws Meskas tias PLC yug. Ua ntej PLC, kev tswj, qhov sib lawv liag, thiab kev nyab xeeb ntawm kev lag luam rau kev tsim tsheb tau tsim los ntawm kev sib tshuam, cov sijhawm tim ntsej tim muag, kev nruas sequencers, thiab kev sib koom ua haujlwm rau kev sib tsoo. Vim tias cov no muaj ntau pua pua lossis txhiab txhiab tus, cov txheej txheem rau kev hloov kho rau cov tsev kawm ntawv no yog siv sij hawm ntau thiab kim heev, raws li cov neeg xav tau hluav taws xob yuav tsum tau ua tib zoo xaiv cov kev sib tshuam los hloov lawv txoj kev ua haujlwm.


Thaum cov tshuab computer ua kom muaj, yog cov cuab yeej hom phiaj tsim kho, lawv tau siv sij hawm los tswj cov kev sib tw thiab sib txuas hauv cov zauv muaj sib xyaw. Txawm li cas los xij cov computers no yuav tsum tau muaj cov kws pabcuam tshwjxeeb thiab muaj kev tswjfwm kev tswjhwm rau kev tswjhwm kub ntxhov, kom huv, thiab muaj lub zog zoo. Yuav kom ua tau li cov teeb meem no PLC tau tsim muaj ntau yam tseem ceeb. Nws yuav zam rau thaj chaw hauv khw, nws yuav txhawb kev cais tawm (ntsis-daim ntawv) tawm tswv yim thiab kev tsim tawm raws li yooj yim, nws tsis tas yuav siv ntau xyoo los siv, thiab nws yuav tso cai rau nws cov kev khiav hauj lwm. Vim tias muaj ntau yam kev xyuam xim muaj sij hawm yooj yim los ntawm millisecond cov lus teb, niaj hnub (yoo, me, txhim khu) electronics heev pab txhim tsa lub tuam txhab txhim khu kev lag luam, thiab kev ua haujlwm yuav raug xa tawm ntawm kev ntseeg.