Dab tsi yog qhov txawv ntawm HMI thiab lub vijtsam kov
Tso lus
Dab tsi yog qhov txawv ntawm tib neeg-tshuab interface thiab dab tsi feem ntau hu ua "kov screen"? Technically hais lus, muaj qhov sib txawv ntawm ob qho tib si. Vim hais tias "kov screen" tsuas yog cov khoom siv kho vajtse ntawm HMI cov khoom uas yuav siv tau, nws yog ib qho kev hloov rau tus nas thiab cov keyboard ib feem ntawm kev ua haujlwm, ntsia rau pem hauv ntej ntawm cov khoom nkag; thaum HMI cov khoom lag luam yog tib neeg-khoos phis tawj cuam tshuam nrog cov khoom siv kho vajtse thiab software. Hauv kev lag luam, tib neeg feem ntau xa mus rau tib neeg-tshuab interface cov khoom lag luam nrog kov cov tswv yim ua haujlwm li "kov cov ntxaij vab tshaus", tab sis qhov no tsis yog kev tshawb fawb.
Kov npo yog lub npe nrov rau "tib neeg-tshuab interface nrog kov muaj nuj nqi"! Lub vijtsam kov tiag tiag yog "ib daim iav pob tshab uas tuaj yeem ua haujlwm ntawm tes".
1, tib neeg-tshuab interface thiab tib neeg feem ntau hais tias "kov screen" qhov txawv yog dab tsi?
Hauv kev txiav txim siab nruj, muaj qhov sib txawv ntawm ob qho tib si. Vim hais tias "kov screen" tsuas yog ib feem ntawm cov khoom siv kho vajtse uas yuav siv tau rau hauv tib neeg-tshuab interface cov khoom, yog lwm txoj hauv kev rau nas thiab keyboard ib feem ntawm kev ua haujlwm, ntsia rau pem hauv ntej ntawm cov khoom siv nkag; thiab tib neeg-tshuab interface cov khoom yog ib yam ntawm tib neeg-khoos phis tawj cov khoom siv sib txuas nrog cov khoom siv kho vajtse thiab software. Hauv kev lag luam, tib neeg feem ntau kov cov tswv yim ua haujlwm ntawm tib neeg-tshuab interface cov khoom hu ua "kov screen", tab sis qhov no tsis yog kev tshawb fawb.
2, Qhov txawv ntawm HMI thiab kev teeb tsa software yog dab tsi?
HMI cov khoom, feem ntau hu ua "kov screen", suav nrog HMI kho vajtse thiab cov khoom siv tshwj xeeb kev teeb tsa software, feem ntau, cov tuam txhab sib txawv ntawm HMI kho vajtse siv cov khoom siv sib txawv ntawm qhov screen configuration software, txuas cov khoom tseem ceeb yog PLC. Cov kev teeb tsa software feem ntau txhawb nqa ntau yam khoom siv, xws li PLCs, PC boards, meters, inverters, modules thiab lwm yam khoom siv. Kev soj ntsuam loj loj.
3. Puas muaj kev ua haujlwm hauv HMI cov khoom?
Txhua yam khoom siv HMI muaj qhov system software, qhov system software khiav hauv HMI processor, txhawb kev ua haujlwm ntau, tus processor xav tau qhov kev ua haujlwm me me los tswj kev ua haujlwm ntawm qhov system software. Cov khoom ua tau zoo HMI raws li cov khoos phis tawj tiaj tus feem ntau siv WinCE, Linux thiab lwm yam kev ua haujlwm sib txuas.
4, HMI puas tuaj yeem txuas nrog PLC?
Tsis yog li ntawd. HMI cov khoom tsim los daws cov teeb meem ntawm tib neeg-tshuab sib cuam tshuam nrog PLC, tab sis nrog kev txhim kho ntawm cov tshuab computer thiab digital circuit technology, ntau cov khoom siv tswj kev lag luam muaj peev xwm sib txuas lus, tsuav yog muaj kev sib txuas lus sib txuas ntawm cov cuab yeej tswj kev lag luam. , xws li kev hloov pauv zaus, DC tus thawj tswj hwm, ntsuas ntsuas kub, cov khoom siv digital, thiab lwm yam tuaj yeem txuas nrog HMI cov khoom kom ua tiav tib neeg-tshuab sib cuam tshuam kev ua haujlwm.
5, HMI puas tuaj yeem txuas nrog lwm yam khoom siv los ntawm qhov chaw nres nkoj sib txuas lus tus qauv?
Feem ntau qhov no yog qhov teeb meem. Txawm li cas los xij, nrog kev txhim kho ntawm computer thiab digital circuit technology, lub peev xwm interface ntawm HMI cov khoom tau dhau los ua kom muaj zog thiab muaj zog. Ntxiv nrog rau cov kev sib txuas lus ib txwm muaj (RS232, RS422 / RS485) kev sib txuas lus, qee cov khoom siv HMI muaj lub network chaw nres nkoj, chaw nres nkoj sib txuas, USB chaw nres nkoj thiab lwm yam ntaub ntawv cuam tshuam, lawv tuaj yeem txuas nrog cov cuab yeej tswj kev lag luam nrog lub network chaw nres nkoj, chaw nres nkoj sib txuas, USB chaw nres nkoj thiab lwm yam interfaces kom ua tiav tib neeg-tshuab sib cuam tshuam ntawm cov khoom siv.
6, Puas muaj tseeb tias cov khoom siv nrog kev sib txuas lus tuaj yeem txuas nrog HMI cov khoom?
Qhov no yuav tsum yog li cas. Feem ntau, ntev npaum li tus tsav tsheb sib txuas lus sib txuas nrog cov cuab yeej txuas tau raug xaiv hauv qhov screen teeb tsa software ntawm HMI, kev sib txuas lus ntawm HMI thiab lub cuab yeej tuaj yeem ua tiav. Yog tias qhov kev xaiv HMI cov khoom teeb tsa software tsis muaj tus tsav tsheb sib txuas lus rau cov khoom siv sib txuas, tus neeg siv tuaj yeem qhia rau cov chaw tsim khoom ntawm HMI cov khoom ntawm qhov chaw nres nkoj sib txuas lus thiab cov ntsiab lus ntawm cov khoom sib txuas, thiab nug HMI cov chaw tsim khoom los npaj kev sib txuas lus. tsav tsheb rau lub cuab yeej.
7, Lub PC nrog lub vijtsam kov puas tuaj yeem sib txuas lus ncaj qha nrog PLC kom ua tiav cov haujlwm ntawm HMI?
Tau kawg koj ua tau. Txawm li cas los xij, qhov sib thooj HMI software yuav tsum tau npaj ua kom lub PC ua HMI khoom tiag.
8, Kev txhim kho yav tom ntej ntawm HMI yog dab tsi?
Nrog rau kev txhim kho digital circuitry thiab computer technology, kev faib nruab nrab ntawm qhov siab, nruab nrab thiab qis hauv kev ua haujlwm ntawm HMI cov khoom lag luam yav tom ntej yuav dhau los ua tsawg thiab tsis pom tseeb, thiab cov haujlwm ntawm HMI yuav dhau los ua nplua nuj thiab nplua nuj; tag nrho cov khoom HMI siab tshaj 5.7 ntiv tes yuav yog xim xim, thiab lub neej ntawm lub vijtsam yuav ntev dua. Raws li tus nqi ntawm lub khoos phis tawj kho vajtse txo qis, HMI cov khoom lag luam yuav yog cov khoom lag luam siab kawg nrog cov khoos phis tawj tiaj tus PC raws li HMI kho vajtse, vim tias cov khoom siv high-end muaj qhov zoo dua hauv processor ceev, cia muaj peev xwm, kev sib txuas lus interface hom thiab tus lej, muaj peev xwm sib txuas lus. thiab software kev sib koom, uas yog kev txhim kho yav tom ntej ntawm HMI cov khoom. Tau kawg, qhov me me (qhov loj me me dua 5.7 ") HMI cov khoom, vim lawv qhov zoo ntawm qhov loj thiab tus nqi, yuav tau siv dav hauv tib neeg-tshuab sib cuam tshuam kev siv ntawm cov cuab yeej siv me me raws li lawv txoj haujlwm tau txhim kho ntxiv (xws li ntxiv IO functions).
