Iyo RS485 yekutaurirana chiteshi itsanangudzo yehardware yekutaurirana ports.Iyo wiring mode yeRS485 port iri mubhazi topology, uye inokwana makumi matatu nembiri node inogona kubatanidzwa kune rimwe bhazi.MuRS485 network yekukurukurirana kazhinji inotora iyo tenzi-nhapwa yekutaurirana modhi, kureva, muenzi ane nhapwa dzakawanda.Muzviitiko zvakawanda, rS-485 kutaurirana zvinongedzo zvinongobatanidzwa kune "A" uye "B" magumo ega ega interface neA peya yetambo dzakamonyoroka.Iyi data yekufambisa yekubatanidza ihafu - duplex yekutaurirana modhi.Mudziyo unogona chete kutumira kana kugamuchira data panguva yakatarwa.Mushure mekunge iyo hardware yekutaurirana interface yatangwa, data protocol inoda kubvumirana pakati pezviridzwa zvekufambisa data kuitira kuti magumo ekugamuchira agone kuburitsa data yakagamuchirwa, inova pfungwa ye "protocol".Iyo yekutaurirana protocol ine yakabatana yakajairika protocol fomati, uye zvigadzirwa zvedu zvese zvinoshandisa yakajairwa Modbus-RTU protocol.Rs-485 kureba kwekutaurirana kureba kunosvika 1219m, mukumhanya kwakaderera, chinhambwe chipfupi, hapana nguva dzekuvhiringidza dzinogona kushandisa yakajairika yakamonyoroka-peya mutsara, pane zvinopesana, mukumhanya kukuru, mutsara wakareba wekufambisa, unofanirwa kushandiswa impedance kuenzanisa (kazhinji 120 ω ) RS485 yakakosha tambo, uye munzvimbo ine hutsinye yekukanganisa inofanirwa kushandiswawo yakamonyoroka-yakadzivirirwa tambo.
Nguva yekutumira: Jul-22-2022