Ulwazi olubalulekileyo lwe-plc lwe-Automation

Ulwazi olubalulekileyo lwe-plc lwe-Automation

Kwindawo yokuqhubela phambili kwemveliso kunye nokuhambela phambili kwezobuchwephesha, ii-PLCs (i-Plcs (i-SPCs (i-Loogic eququzelayo) idlala indima ebalulekileyo kulawulo lwe-automation. I-PLC inokuqondwa ngokubanzi njengephaneli yolawulo oluchaziweyo. Kwiinkqubo ezisebenzayo, ii-PLCs zinciphisa iindleko zokulawula umzi-mveliso kunye nokonyusa ulawulo lwezixhobo kunye nokuzenzekelayo. Ukuya kwii-PARCs ze-PARC, umntu kufuneka aqonde ulwazi lwesiseko.

Izinto ze-PLC kunye nemisebenzi yazo

Ukongeza kwi-CPU, imemori, kunye nonxibelelwano lwezonxibelelwano, ii-PLCs zinegalelo kunye nokuphuma ezinxulumene nokuphuma ngqo kwiziza zemveliso.

1. Isinxibelelanisi sokufaka: Fumana imiqondiso evela kwizixhobo ezilawulwayo kwaye uqhuba iisekethe zangaphakathi nge-optocouplers kunye nesekethe.

2. Isinxibelelanisi sokuphuma: sidlulisela iziphumo zokuphucula inkqubo ngokusebenzisa ama-Optocouplers kunye nezinto zokuphumeza (zidlulise, zidluliselwa, i-hispootiles, abathuthuzelayo) ukulawula imithwalo yangaphandle.

Icandelo elisisiseko le-plc kunye nezinto zayo

Icandelo le-PLC elisisiseko linamacandelo aliqela aphambili:

1. I-CPU: Eyona nto iphambili kwi-PLC, yazisa imisebenzi eyahlukeneyo efana nokufumana iinkqubo zabasebenzisi kunye nedatha, ukuxilongwa, kunye nokusetyenziswa kwenkqubo.

2. Imemori: ivenkile yenkqubo kunye neenkqubo zomsebenzisi kunye nedatha.

3. I / O Umnxibelelanisi: Inxibelelana ne-PLC kwizixhobo zomsebenzi, ukufumana imiqondiso kunye neziphumo zenkqubo yokuphuhlisa.

4. Isinxibelelanisi soNxibelelwano: Yenza ukuba utshintshiselane ngolwazi nezinye izixhobo ezinjengeendawo zokubeka iliso kunye nabashicileli.

5. Ukuhanjiswa kwamandla: Inika amandla kwinkqubo ye-plc.

Ukutshintsha unxibelelwano lwe-PLC kunye neempawu zazo

I-PLC yokutshintsha i-Intanethi

1. Uhlobo lwemveliso ye-Quirilotor Uhlobo: Ngokwesiqhelo isetyenziselwa imithwalo ye-AC, ebonisa impendulo ekhawulezileyo kunye nokusebenza okuphezulu.

2. Uhlobo lwemveliso yeTransferistor

3. Uhlobo lwemveliso yokudlulisela: Ihambelana nemithwalo ye-AC kunye ne-DC, kodwa ngexesha elide lokuphendula kunye nexesha eliphantsi lokusebenza.

Iindidi zodwa ze-PLC kunye neempawu zabo

Ii-Pluc zingahlelwahlulwahlulwahlulwa kwiintlobo ezintathu zesakhiwo:

1. Uhlobo olubalulekileyo: nge-CPU, ukuBonelwa kwaMandla, kunye ne-I / I-O / O I-I / O / O

2. Uhlobo lwemodyuli: Faka iimodyuli ezahlukileyo zemisebenzi eyahlukeneyo, ukuhambisa ubumbeko oluguqukayo kunye nokwandiswa ngokulula kunye nolondolozo. Ihlala isetyenziswa kwii-PPCs eziphakathi kunye ne-PlCs ezinkulu kwaye iqulethe isakhelo okanye iplate yesiseko kunye neemodyuli ezahlukeneyo.

3. Uhlobo olukhoyo: ludibanisa iimpawu ezibalulekileyo kunye neentlobo zemodyuli. I-CPU, ukuBonelwa kweMibane, kunye ne / O

I-PLC Scan Cipect kunye neZinto zayo eziPhakamisayo

Umjikelo weskena plc unokubangela amanqanaba amahlanu: Ukulungiswa ngaphakathi, inkonzo yonxibelelwano, ukuqhutywa kwenkqubo, ukwenziwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphuculwa kwenkqubo, kunye nokuphucula inkqubo. Ixesha elifunekayo lokugcwalisa la manqanaba amahlanu kanye obizwa ngokuba ngumjikelo weskena. Iphenjelelwa yisantya sokusebenza kwe-CPU, ubumbeko lweHardware, kunye nobude beNkqubo yomsebenzisi.

Indlela yokuphucula inkqubo ye-plc kunye nenkqubo

I-PLCs iphumeza iinkqubo zomsebenzisi usebenzisa indlela yokuskena yeCyclic scan. Inkqubo yokuphunyezwa ibandakanya amanqanaba amathathu: isampulu yegalelo, ukwenziwa kwenkqubo, kunye nokuhlaziywa kwemveliso.

Izibonelelo zeeNkqubo zokuLawula i-PLC kwiiNkqubo zokuLawula eziTheleleyo zoLawulo

1. Indlela yokulawula: Ii-PlCs zisebenzisa ulawulo olunokufakwa endaweni, zivumela utshintsho olulula okanye ukuphuculwa kweemfuno zolawulo, kunye nonxibelelwano olungenamda.

2. Imowudi yokusebenza: Ii-PPCs zisebenza kwimodi ye-serial, ekwaziyo amandla okuphazamiseka.

3. Isantya sokulawula: Abafowunelwa be-PLC babalulekile ngamaxesha okuphunyezwa kwemisebenzi emalinganiswe kwii-microsecond.

4. Ixesha lokugcina ixesha kunye nokubala: Ii-PLCs zisebenzisa iisekethe ezihlanganisiweyo ze-semiconductor njengamaxesha, kunye neetshizi ezinikezelwa yi-crystators ye-crystal, ukuhambisa amandla okuphezulu kwexesha kunye nokubonisa ixesha eliphezulu. Banemisebenzi yokubala ayifumaneki kwiinkqubo ezahlukileyo.

5. Ukuthembeka nokuzilolonga: Ii-PLCs zisebenzisa itekhnoloji ye-vaedecticmics kwaye zibonisa imisebenzi yokuqonda isiphoso sempazamo yexesha elifanelekileyo.

Izizathu zeNkqubo yokuphendula ye-plc kunye nezisombululo

Ii-PlCs ziqesha isampulu ye-Sampling kunye nePikethi yeCyckic Scanning. Isimo segalelo sifundwe kuphela ngexesha lesigaba sesampulu yegalelo ngalinye, kunye neziphumo zokwenza inkqubo zithunyelwa kuphela ngexesha lesigaba sokuhlaziya. Ukongeza, igalelo kunye nokulibazisa ukulibaziseka kunye nobude benkqubo yomsebenzisi kunokubangela i-Lag yokuphendula yemveliso. Ukuphucula isantya sempendulo, umntu unokwandisa i-frequency yesampulu yokufaka kunye nokuhlaziywa kwesampulu, kusetyenziswa igalelo legalelo lesampunzi kunye ne-Invelomet i / O

Ukudluliselwa okuthambileyo okuthambileyo kwi-plm ye-plc uthotho

I-SEEmens ibonisa i-PLCs ezahlukeneyo zangaphakathi zokudlulisela ngaphakathi, kubandakanya ukunxibelelana, zidluliselo, iirejista zomncedisi, izinto zokubala, kunye neerejista zedatha.

Ukuqwalaselwa kokukhetha i-PLC

1. Imodeli yokhetho: Cinga ngezinto ezinje ngememo, indlela yokufaka, iimfuno zomsebenzi, isantya sokuphendula, ukuthembeka okuthembekileyo, kunye nemodeli yokufana.

2. Ukukhetha umthamo

3. I / Ow Ordle Codle: I-I / I-ANAGN I / O / O Imodyuli kunye neemodyuli ezizodwa zomsebenzi.

4. Imodyuli yoNcedo lwaMandla kunye nolunye ukhetho lwezixhobo: ezinje ngezixhobo zenkqubo.

Iimpawu ze-PLC ye-PLC ye-Sampling kunye neNdlela yokuSebenza

Kwisampulu esecaleni, imeko yokufaka isampulu yesampulu kuphela ngexesha lokufaka isampulu yomjikelo weskena, kunye nokuphela kokuphela kuvaliwe ngexesha leSigaba seNkqubo. Kwimveliso esembindini, isigaba sokuhlaziya iziphumo kuphela kwexesha apho inqanaba kwirejista yemifanekiso idluliselwa kwi-latch ye-Latch ukuhlaziya unxibelelwano oluphumayo. Le ndlela yokusebenza iphucula inkqubo yokuphazamiseka kwenkqubo yokuphazamiseka kunye nokuthembeka kodwa kunokubangela igalelo / impendulo yempendulo kwi-PLCS.

Imowudi yokusebenza ye-PLC kunye neempawu

Ii-PLCs zisebenza kusetyenziswa isampulu ye-Samited, ukuphuma kwephakathi, kunye nokuskena kweSyclic. Isampulu ye-Intanethi kuthetha ukuba imeko yegalelo ipelisile kuphela kwisigaba sesampulu yegalelo lomjikelo weskena, kunye nesiphelo sokufaka sivinjelwe ngexesha lokuphunyezwa kwenkqubo. Iziphumo eziphakathi zibhekisa ekudlulisweni kwemveliso enxulumene nemveliso kwirejista yemifanekiso kwi-latch kuphela ngexesha leSigaba sokuHlaziya. Ukuskena kweCycclic kubandakanya ukwenza imisebenzi emininzi kumjikelo weskena ngokuhamba kwexesha - ukuskena kweCandelo ngokulandelelana.

Ubume kunye nomgaqo wokusebenza we-electromagnetic

Abanxibelelanisi be-Electromagnetic baqulunqli beendlela ze-electromagnetic, abafowunelwa, izixhobo zokucima ii-ARC, khupha iindlela zentwasahlobo, kunye nezinto ezikhulayo. Xa i-elektromagnetic Coilness inamandla, ivelisa i-magnetic suble, ibangela intsimbi yentsimbi ephambili yokuvelisa i-arherromagnetic etsala i-Armature kwaye ithathe abafowunelwa. Oku kubangela ukuba abafowunelwa abaqhelekileyo bavale kwaye bavule abafowunelwa ukuba basondele. Xa i-COIL i-De-Innegy, amandla e-electromagnetic anyamalale, kwaye i-marmare ikhutshelwe ngentwasahlobo, ukubuyisela abafowunelwa ukuya kwilizwe labo lasekuqaleni.

Inkcazo yoLawulo lweLogic eququzelelweyo (ii-PLCs)

I-PLC sisixhobo se-elektrong se-elenzelwe indawo yemveliso yemizi-mveliso. Isebenzisa inkumbulo enokufikeleleka ukugcina imiyalelo yokwenza intsingiselo, ilandelelana, ixesha, ukubalwa, kunye nokusebenza kwezikolo ze-arithmetic. Ilawula iinkqubo ezahlukeneyo zemveliso okanye iinkqubo zokuvelisa ngokusebenzisa igalelo ledijithali okanye i-analog / iziphumo.

Ii-PlCs kunye nezixhobo ezihambelana neziqulatheneyo zenzelwe ukuba zidibane ngokulula neenkqubo zokulawula imizi-mveliso kunye nokwenza lula ukwanda komsebenzi.

Umahluko phakathi kwe-PLC kwaye udluliselwe-ngokudluliselwa-zezomsebenzi

Umahluko phakathi kwe-PLC kwaye udluliselo lwenkqubo yentsebenzo ulele kwizixhobo zabo eziqhelekileyo, inani labafowunelwa, kunye neendlela zokulawula.