Uyini umehluko phakathi kwesilawuli sokunyakaza ne-plc

Uyini umehluko phakathi kwesilawuli sokunyakaza ne-plc?

Isilawuli sokunyakaza siyisilawuli esikhethekile sokulawula imodi yokusebenza kwenjini: isibonelo, injini ilawulwa yi-AC contactor ngesishintshi sokuhamba futhi injini ishayela into ukuze igijime ifike endaweni ecacisiwe bese igijima phansi, noma isebenzise. i-relay yesikhathi yokulawula i-motor ukuthi iphenduke ibe yi-positive ne-negative noma ijike isikhashana ukuze ime bese ijika isikhashana ukuze ime.Ukusetshenziswa kokulawula ukunyakaza emkhakheni wamarobhothi kanye namathuluzi omshini we-CNC kuyinkimbinkimbi kakhulu kunaleyo emishinini ekhethekile, enendlela elula yokunyakaza futhi evame ukubizwa ngokuthi i-general motion control (GMC).

Izici zesilawuli sokunyakaza:

(1) Ukwakheka hardware ilula, faka isilawuli motion ebhasini PC, xhuma umugqa signal kungenziwa yakhiwa uhlelo;

(2) Ingasebenzisa i-PC inokuthuthukiswa kwesofthiwe ecebile;

(3) Ikhodi yesofthiwe yokulawula ukunyakaza inokuvumelana okuhle nokuphatheka kahle;

(4) Kukhona onjiniyela abaningi abangakwazi ukwenza umsebenzi wokuthuthukisa, futhi ukuthuthukiswa kungenziwa ngaphandle kokuqeqeshwa okuningi.

Yini i-plc?

Isilawuli se-Programmable logic (PLC) siwuhlelo lwe-elekthronikhi lwe-arithmetic oluklanyelwe ukusetshenziswa endaweni yezimboni.Isebenzisa inkumbulo ehlelekayo lapho kugcinwa khona iziqondiso zokwenza imisebenzi efana nokusebenza okunengqondo, ukulawula ukulandelana, isikhathi, ukubala nokusebenza kwe-arithmetic, futhi izinhlobo ezihlukahlukene zemishini yokusebenza noma izinqubo zokukhiqiza zilawulwa ngokufaka nokuphumayo kwedijithali noma kwe-analog.

Izimpawu ze-plc

(1) Ukwethembeka okuphezulu.Ngoba i-PLC ngokuvamile isebenzisa i-chip microcomputer eyodwa, ukuhlanganiswa okuphezulu kakhulu, okuhambisana nesekhethi yokuvikela ehambisanayo nomsebenzi wokuzihlola, kuthuthukisa ukwethembeka kwesistimu.

(2) Ukuhlela okulula.Ukuhlelwa kwe-PLC kusebenzisa umdwebo weladi lokulawula i-relay kanye nesitatimende somyalo, inombolo incane kakhulu kunomyalo wekhompyutha encane, ngaphezu kwe-PLC yebanga eliphakathi neliphezulu, i-PLC encane evamile cishe engu-16. Ngenxa yesithombe somdwebo weladi futhi kulula, kulula kakhulu. ukuze balukhulume, kulula ukuyisebenzisa, ngisho awudingi ubuchwepheshe bekhompyutha, ingahlelwa.

(3) Ukucushwa okuguquguqukayo.Ngenxa yokuthi i-PLC yamukela isakhiwo sebhulokhi yokwakha, umsebenzisi udinga kuphela ukuhlanganisa, khona-ke angashintsha ngokuguquguqukayo umsebenzi kanye nesilinganiso sohlelo lokulawula, ngakho-ke, lungasetshenziswa kunoma yiluphi uhlelo lokulawula.

(4) Qedela amamojula omsebenzi wokufaka/okukhiphayo.Enye yezinzuzo ezinkulu ze-PLC ukuthi kumasiginali wensimu ahlukene (njenge-DC noma i-AC, inani lokushintsha, ubuningi bedijithali noma ubuningi be-analog, i-voltage noma yamanje, njll.), kukhona izifanekiso ezihambisanayo ezingaxhunywa namadivayisi ensimu yezimboni (afana njengezinkinobho, amaswishi, izithumeli zamanje zokuzwa, iziqalisi zezimoto noma amavalvu okulawula, njll.) ngokuqondile, futhi exhunywe ne-motherboard ye-CPU ngebhasi.

(5) Ukufakwa kalula.Uma kuqhathaniswa nesistimu yekhompyutha, ukufakwa kwe-PLC akudingi ikamelo elikhethekile, futhi akudingi izinyathelo eziqinile zokuvikela.Uma isetshenziswa, idivayisi kuphela yokuthola kanye netheminali ye-I/O ye-actuator ne-PLC exhunywe ngendlela efanele, bese ingasebenza ngokujwayelekile.

(6) Isivinini sokugijima esisheshayo.Ngoba ukulawulwa kwe-PLC kulawulwa ukwenziwa kohlelo, ngakho-ke noma ukwethembeka noma isivinini sokugijima, ukulawulwa kwe-relay logic akukwazi ukuqhathaniswa.Eminyakeni yamuva nje, ukusetshenziswa kwe-microprocessor, ikakhulukazi ngenani elikhulu le-chip microcomputer eyodwa, kuthuthukise kakhulu ikhono le-PLC, futhi umehluko phakathi kwe-PLC nohlelo lokulawula amakhompiyutha amancane uya uba mncane futhi ube mncane, ikakhulukazi i-PLC yezinga eliphezulu injalo.

Umehluko phakathi kwesilawuli sokunyakaza ne-plc:

Ukulawula ukunyakaza kufaka phakathi ukulawula kwe-stepper motor kanye ne-servo motor.Isakhiwo sokulawula ngokuvamile siyi: idivayisi yokulawula + umshayeli + (i-stepper noma i-servo) motor.

Idivayisi yokulawula ingaba uhlelo lwe-PLC, ingaba idivayisi ekhethekile ezenzakalelayo (njengesilawuli sokunyakaza, ikhadi lokulawula ukunyakaza).Uhlelo lwe-PLC njengedivaysi yokulawula, nakuba inokuguquguquka kwesistimu ye-PLC, ukuguquguquka okuthile, kodwa ngokunemba okuphezulu, njengokuthi - ukulawula ukuhumusha, izidingo ezibucayi uma kunzima ukwenza noma ukuhlela kunzima kakhulu, futhi izindleko zingase zibe phezulu. .

Ngokuqhubeka kwezobuchwepheshe kanye nokunqwabelana, isilawuli sokunyakaza sivela ngesikhathi esifanele.Iqinisa imisebenzi ethile evamile nekhethekile yokulawula ukunyakaza kuyo - njengemiyalelo yokuhumusha.Abasebenzisi badinga kuphela ukulungisa nokubiza la mabhulokhi asebenzayo noma imiyalelo, okunciphisa ubunzima bokuhlela futhi kunezinzuzo ekusebenzeni nasezindlekweni.

Kungaqondwa futhi ukuthi ukusetshenziswa kwe-PLC kuyithuluzi elivamile lokulawula ukunyakaza.Isilawuli sokunyakaza siyi-PLC ekhethekile, isikhathi esigcwele sokulawula ukunyakaza.