Ingabe I-PLC Isofthiwe Yemikhiqizo Ehlukene Ingashintshaniswa? Lesi sihloko Sinazo Zonke Izimpendulo!
Ingabe I-PLC Isofthiwe Yemikhiqizo Ehlukene Ingashintshaniswa? Lesi sihloko Sinazo Zonke Izimpendulo!
Ingabe isofthiwe ye-PLC evela kubakhiqizi abahlukene iyashintshana? Kulesi sihloko, sihlolisisa udaba futhi sinikeze impendulo ebanzi.
Isoftware ye-PLC evela kumikhiqizo emikhulu ngokuqinisekile ayinakushintshwa. Umkhiqizi ngamunye uthuthukisa izici zakhe ezihlukile ukuze ahehe abasebenzisi futhi akanikezi isofthiwe yakhe ethuthukiswe ngokucophelela ukuze isetshenziswe mahhala ngabanye.
Abakhiqizi abakhulu ngokuvamile abavumeli ihadiwe yezinye izinkampani ukuthi ihambisane nesofthiwe yabo. Ngisho nochungechunge oluhlukile lwama-PLC avela kumkhiqizi ofanayo, njenge-Siemens, ngokuvamile aluhambisani nomunye nomunye.
Naphezu kokuhluka kwesofthiwe, kukhona ukufana ezinhlelweni ezithuthukiswe abakhiqizi abahlukahlukene. Iningi lisekela izilimi ze-IEC ezijwayelekile ze-PLC. Izinga lamazwe ngamazwe le-IEC 61131-3 lichaza izilimi ezinhlanu zokuhlela ze-PLC:
Uhlu Lwemiyalo (IL)
Umbhalo Osakhiwe (ST)
Umdwebo Wesitebhisi (LD)
I-Function Block Diagram (FBD)
Ishadi Lokusebenza Okulandelanayo (SFC)
Lokhu kwenza onjiniyela baqonde kalula izinhlelo eziyisisekelo zama-PLC ahlukene. I-IEC yenze elikhulu iqhaza ekuthuthukisweni kwe-PLC.
I-IEC - izinhlelo ezithobelayo zingathuthwa kalula phakathi kwamapulatifomu esofthiwe ahlukene. Kuzinhlelo ze-ST ezisekelwe embhalweni, ukukopisha (noma ukuthumela) kusuka kusofthiwe yokuhlela eyodwa nokunamathisela kwenye, okulandelwa ukuguqulwa kwe-syntax okuncane, kungase kwanele ukuqalisa uhlelo. Ezinhlelweni zegraphical ezifana ne-LD ne-FBD, ukukopisha okuqondile akwenzeki, kodwa ukuzidweba kabusha ku-software eqondiwe kungafeza ukusebenza okufanayo, okuphinde kube uhlobo lokuthuthwa.
Emkhakheni wokulawulwa kwezimboni, ukuqonda izimiso ze-PLC kanye nokuba nekhono kwe-IEC - izilimi ezijwayelekile ze-PLC kuvumela onjiniyela ukuthi basebenze nama-PLC avela kubakhiqizi abahlukahlukene kalula. Ukuzijwayeza nezici zamapulatifomu e-software ahlukene kubalulekile. Phela, izinhlelo ze-PLC zenzelwe ukukhonza izinjongo zokulawula, futhi lo mgomo oyinhloko uhlala ungashintshiwe.