PLC tswj txee feem ntau suav nrog tsib ntu hauv qab no:
Cua Hloov: Ib lub ntsiab cua hloov, uas tswj lub hwj huam mov rau tag nrho lub txee. Qhov no yog ib qho tseem ceeb ntawm txhua lub txee.
PLC: Qhov no nyob ntawm seb qhov project yuav tsum tau ua. Piv txwv li, ib txoj haujlwm me me yuav siv tau ib qho kev sib koom ua ke PLC, thaum lub phiaj xwm loj dua yuav xav tau cov qauv lossis daim npav -raws li PLCs, thiab rov ua dua (piv txwv li, ob lub teeb siv sib hloov).
Fais fab mov: A 24VDC hloov fais fab mov. Feem ntau PLCs muaj qhov ua tau - nyob rau hauv 24VDC fais fab mov; seb puas yuav tsum tau siv hluav taws xob ntxiv no nyob ntawm nws cov kev xav tau tshwj xeeb.
Relays: Feem ntau, PLC tuaj yeem xa cov lus txib ncaj qha mus rau kev tswj xyuas hluav taws xob, tab sis cov relays yuav raug siv los ua tus neeg nruab nrab. Piv txwv li, yog tias koj lub PLC tso zis yog 24VDC, tab sis koj qhov kev tswj Circuit Court daim duab xav kom lub PLC muab 220VAC, ces koj yuav tsum ntxiv ib tug relay rau PLC tso zis. Thaum ib qho kev hais kom ua, lub relay qhib, thiab cov tswj Circuit Court node txuas nrog lub relay feem ntau qhib los yog kaw kev sib cuag. Seb puas siv lub relay nyob ntawm qhov xwm txheej tshwj xeeb.
Terminal blocks yog qhov tseem ceeb rau txhua lub txee tswj. Lub configuration nyob ntawm tus naj npawb ntawm cov teeb liab. Yog tias nws tsuas yog ib qho yooj yim PLC tswj txee, cov no yog txhua yam koj xav tau. Yog tias koj lub txee tswj xav tau muab lwm yam khoom, koj yuav tsum tau ntxiv ntau ntxiv. Piv txwv li, yog tias koj xav tau cov cuab yeej siv hluav taws xob lossis cov thawv tswj me me, koj yuav tsum tau nce cov hluav taws xob hluav taws xob. Lossis yog tias koj xav tau txuas lub PLC rau lub khoos phis tawj tswj hwm, koj yuav xav tau ntxiv qhov hloov pauv, thiab lwm yam. Nws nyob ntawm qhov xwm txheej.
