Chiteshi chekutaurirana cheRS485 itsananguro yemidziyo yekutaurirana. Nzira yekubatanidza waya yechiteshi cheRS485 iri muchikamu chebhazi, uye ma node anosvika makumi matatu nemaviri anogona kubatanidzwa kubhazi rimwe chete. MuRS485 network yekutaurirana inowanzo tora nzira yekutaurirana yemaster-slave, kureva, host ine slave yakawanda. Kazhinji, rS-485 communication links dzinongobatanidzwa kumagumo e "A" ne "B" einterface yega yega netambo mbiri dzakamonyoroka. Iyi link yekutumira data imodhi yekutaurirana yehafu - duplex. Mudziyo unogona kutumira kana kugamuchira data panguva yakatarwa. Mushure mekunge interface yekutaurirana yehardware yagadzwa, protocol yedata inofanirwa kubvumirana pakati pezvishandiso zvekutumira data kuitira kuti mugumo wekugamuchira ugone kutsanangura data rakagamuchirwa, inova pfungwa ye "protocol". Protocol yekutaurirana ine fomati yakabatana yeprotocol, uye zvigadzirwa zvedu zvese zvinoshandisa standard Modbus-RTU protocol. Kureba kwekukurukurirana kweRs-485 kunosvika 1219m, mukumhanya kwakaderera, daro pfupi, pasina kupindira kunogona kushandiswa mutsetse wakajairika we twisted-pair, pane kudaro, mukumhanya kwakakwirira, mutsetse murefu, inofanira kushandiswa impedance matching (kazhinji 120 ω) RS485 tambo yakakosha, uye munzvimbo dzakaoma dzekuvhiringidza dzinofanirawo kushandiswa tambo yakachengetedzwa yakakomberedzwa yakakomberedzwa.
Nguva yekutumira: Chikunguru-22-2022