Urujijo kubyerekeye inkomoko nubwoko bwa sink muri PLC? Dore ibisobanuro byoroshye:
Urujijo kubyerekeye inkomoko nubwoko bwa sink muri PLC? Dore ibisobanuro byoroshye:
Inkomoko vs Sink: Kumuzunguruko wa tristoriste, isoko (PNP) bisobanura imiyoboro ya IO itanga amashanyarazi, mugihe sink (NPN) bivuze ko ikurura amashanyarazi.
KORA (Ibisohoka bya Digital):
Ibisubizo bya PNP (isoko) birasanzwe muri Siemens 300/400 hamwe na PLC yu Burayi. Bafite imbaraga zimbere, bityo ikigezweho kinyura muri DO, cyemerera gutwara relay itaziguye idafite imbaraga zo hanze.
Ibisubizo bya NPN (sink) birasanzwe mubuyapani, Tayiwani, Siemens 200, hamwe na PLC nyinshi zo murugo. Bakenera insinga zo hanze kuri 24V yamashanyarazi, hamwe nubu biva mubikoresho byo hanze mubisohoka module.
DI (Iyinjiza rya Digital):
Itandukaniro riterwa nubu icyerekezo cyerekezo ugereranije na DI terminal.
Mubisanzwe, niba DI ya COM ihujwe na 24V kandi ibyinjijwe bifite agaciro kuri 0V, ibiva hanze (isoko). Niba COM ihujwe na 0V kandi ibyinjijwe bifite agaciro kuri 24V, ibyinjira muri (sink).
Icyitonderwa cyihariye kubuyapani PLCs: Bimwe (nka Mitsubishi) bisobanura DI ukurikije ubwoko bwemewe busohoka. DI ishobora kwakira isoko DO yitwa "isoko yinjiza"; imwe ishobora kwemera kurohama DO ni "icyinjijwe".
DIDO Kuringaniza: Inkomoko DI irashobora guhuza kurohama KORA, nibindi. Ubwoko bumwe DI / DO ihuza irashobora gukenera gukururwa cyangwa izindi ngamba zo gukumira polarite.
Siemens PLCs:
Kurohama Logic: Ikimenyetso ON mugihe ikigezweho gisohoka hanze yinjiza.
Inkomoko Logic: Ikimenyetso ON mugihe ikigezweho cyinjira muri terminal.
Hamwe n'amashanyarazi meza, voltage ntoya (0V) kumurongo winjira mugihe ikimenyetso "ON" cyerekana logique; umuyaga mwinshi (mubisanzwe 24V) werekana logique yinkomoko.
Inkomoko yinjiza ni murwego rwohejuru rwemewe (urujya n'uruza muri), mugihe ibyinjira byinjira ni bike-byemewe (ibyasohotse hanze).
Mitsubishi FX3U:
Inkomoko: Ibiriho bisohoka, hamwe na PNP transistor isohoka.
Kurohama: Ibiriho byinjira, hamwe na NPN transistor isohoka.
Ibyifuzo by'akarere:
S7-200 PLC irashobora gukemura ubwoko bwamazi ninkomoko, mugihe S7-300 PLC isanzwe ikomoka. Uburayi bwiburengerazuba bukunze gukoresha ubwoko bwinkomoko hamwe na PNP ihinduranya murwego rwohejuru. Ubuyapani na Koreya yepfo bikunda ubwoko bwa sink, ukoresheje NPN ihinduranya murwego rwo hasi.
Inkomoko yasohotse nibyiza DC inkingi, ibisubizo bya sink nibibi. Siemens PLCs isanzwe ifite byombi, ariko isoko irasanzwe. Mitsubishi PLCs ishyigikira ibyinjira byombi, ariko sink irasanzwe, ihuye nubwoko bwa NPN.