Ibhasi le-CAN vs RS-485 Yisiphi Isimiso Sokuxhumana Esingcono

Ukuqonda i-CAN Bus

Ukubuka konke

I-CAN Bus imnandi ngoba iyisistimu enama-multi-master. Lokhu kusho ukuthi amadivayisi amaningi angakhuluma ngaphandle kokudinga isilawuli esisodwa esikhulu. Isebenzisa ukuhlola amaphutha okuhlakaniphile ukuthumela idatha ngokwethembeka. Esikhundleni sokugxila ekutheni imiyalezo ivela kuphi noma iya kuphi, ibheka ukuthi umlayezo uthini. Lokhu kuyenza ibe yinhle kakhulu emisebenzini yesikhathi sangempela.

Uhlelo lwe-CAN lunesakhiwo esihleliwe. Lusebenzisa ozimele bedatha abanezingxenye ezifana nama-ID nezinkambu zedatha. Lezi zingxenye zisiza ekuhleleni imiyalezo nasekugcineni izinto zihamba kahle. Selokhu lwaqala ngo-1993, uhlelo luthuthuke kakhulu. Ngo-2018, inguqulo ye-CAN XL yaphuma, yafinyelela isivinini esingu-10 Mbps.

Izici Eziyinhloko

I-CAN Bus inezici ezithile ezikhethekile. Isebenzisa uhlelo lokusakaza, ukuze wonke amadivayisi akwazi ukuzwa imiyalezo. Lokhu kusiza amadivayisi ukuthi asebenze ndawonye kalula. Iphinde ilungise amaphutha ngokwayo, okubalulekile ekuphepheni.

Enye into enhle ukuguquguquka kwayo. Ungaxhuma amadivayisi ambalwa noma amaningi, futhi isebenza kahle. Iphinde yonge amandla ngokuvusa amadivayisi athile kuphela uma kudingeka. Lezi zici ziyenza ibe ukukhetha okuqinile kwezinhlelo eziyinkimbinkimbi.

Izicelo

Ibhasi i-CAN laqale lenzelwe izimoto kodwa manje lisetshenziswa yonke indawo. Ungalithola ezimbonini, ezibhedlela, nasezakhiweni. Isibonelo, lisiza ama-lifti ukuthi asebenze ngokuphepha nangokushelela. Amandla alo okuzilungisa alenza lifanelekele imisebenzi yokuphepha. Kungakhathaliseki ukuthi kusezimotweni, emishinini, noma ezakhiweni, ibhasi i-CAN libonisa ukuthi liwusizo kangakanani.

Ukuqonda i-RS-485

Ukubuka konke

I-RS-485 inamandla futhi isebenza kahle emabangeni amade. Ibeka imithetho yokuthi idatha ihamba kanjani kanye nezimpawu zikagesi ezisebenza kanjani. Lolu hlelo luphatha izindawo ezinomsindo ngokusebenzisa izimpawu ezilinganiselayo ukunciphisa umsindo. Luthumela idatha ngokuthembeka ngokuguqula izimpawu zikagesi zibe ezedijithali. I-RS-485 isebenzisa i-voltage encane engu-+/- 200 mV, okwenza iguquguquke ekusethweni okuhlukile. Lezi zici ziyenza ibe ukukhetha okuhle ezindaweni ezinzima.

Izici Eziyinhloko

I-RS-485, ebizwa nangokuthi i-TIA-485 noma i-EIA-485, inezici eziwusizo. Izimpawu zayo ezilinganiselayo zivimba umsindo, okusiza ezindaweni ezinomsindo. Ivumela amadivayisi amaningi ukuthi ahlanganyele inethiwekhi eyodwa, njengezinhlelo ze-Modbus noma ze-Profibus. I-RS-485 ivumela ukuxhumana okubili emgqeni ofanayo, obizwa ngokuthi i-half-duplex. Isebenza kahle emabangeni amade, okwenza kube kuhle kakhulu ezimbonini. Lezi zici zenza i-RS-485 ibe uhlelo oluwusizo noluthembekile.

Izicelo

I-RS-485 ilungele izindawo ezidinga ukuxhumana okude. Isetshenziswa emafektri, ezinhlelweni zokwakha, kanye namathuluzi kagesi. Uzoyithola nasezitimeleni nasemishinini yezokwelapha. Ixhuma amadivayisi amaningi kunethiwekhi eyodwa, ngisho nasezindaweni ezinomsindo. Isibonelo, emafektri, ixhumanisa izinzwa nabalawuli ukuze izinto ziqhubeke zisebenza. I-RS-485 isebenza nezinhlelo ezindala, okwenza kube lula ukuyisebenzisa ezimbonini eziningi.

Ukuqhathanisa i-CAN Bus ne-RS-485

Amanani Edatha

I-CAN Bus kanye ne-RS-485 zinesivinini sedatha esihlukile. I-CAN Bus ingafinyelela ku-1 Mbps. Lokhu kushesha ngokwanele ezimotweni nasezinhlelweni zefektri. I-RS-485 ingafinyelela ku-40 Mbps, okushesha kakhulu. Kodwa i-RS-485 yehlisa ijubane ebangeni elide. Isibonelo, ihlala ku-35 Mbps amamitha ayi-10. Ebangeni elide, yehla iye ku-1 Mbps. Isivinini kanye nebanga kubalulekile lapho ukhetha phakathi kwazo.

Ibanga Lokuxhumana

I-RS-485 isebenza kangcono emabangeni amade. I-CAN Bus ingathumela idatha engaba amamitha angu-40 kuphela ngesivinini esingu-1 Mbps. Lokhu kulungile ezinhlelweni ezincane ezifana namanethiwekhi ezimoto. I-RS-485 ingathumela idatha kude ngamamitha angamakhulu. Lokhu kuyenza ibe yinhle kakhulu ekusethweni okukhulu njengezimboni noma izinhlelo zokwakha. Uma ngidinga ukuxhuma amadivayisi aqhelelene, ngikhetha i-RS-485.

Iphutha Lokuphatha

Ukuphathwa kwamaphutha kubaluleke kakhulu ezindaweni ezinomsindo. I-CAN Bus inamathuluzi akhelwe ngaphakathi okuthola nokulungisa amaphutha. Isingatha izinkinga ezifana nokungqubuzana kwemiyalezo noma idatha embi ngokwayo. I-RS-485 ayinawo la mathuluzi. Ukuze i-RS-485 ibe nokwethenjelwa, kudingeka ihadiwe noma isofthiwe eyengeziwe. Nasi isiqhathaniso esilula:

Ukuze uthole izinhlelo eziphephile nezithembekile, ngithanda i-CAN Bus.

Ukusabalala

Ukusabalala kusho ukuthi uhlelo lukhula kahle kangakanani ngamadivayisi amaningi. I-RS-485 ivumela amadivayisi amaningi ukuthi abelane ngenethiwekhi eyodwa. Lokhu kusebenza kahle ngezinhlelo ezifana ne-Modbus ne-Profibus. I-CAN Bus isebenzisa ukusethwa kwe-multi-master, ngakho amadivayisi amaningi angakhuluma ngesikhathi esisodwa. Iphinde igweme ukungqubuzana kwemiyalezo kalula. Womabili akhula kahle, kodwa i-CAN Bus ingcono ezinhlelweni eziyinkimbinkimbi ezidinga ukusebenzisana ngesikhathi sangempela.

Izindleko

Izindleko zibaluleke kakhulu kumaphrojekthi. I-RS-485 ishibhile futhi kulula ukuyisetha. Isebenza kahle nezinhlelo ezindala, isonga imali. I-CAN Bus ibiza kakhulu ngenxa yezici zayo ezithuthukisiwe. Lokhu kufaka phakathi ukulungisa amaphutha nokuphatha amadivayisi amaningi. Kumaphrojekthi anesabelomali esiphansi, i-RS-485 iyisinqumo esihle. Kodwa ngezinhlelo ezithembekile nezisheshayo, i-CAN Bus ifanele izindleko ezengeziwe.

Ukukhetha Iphrothokholi Efanele

Amathiphu Okusebenzisa Ibhasi le-CAN

Uma usebenzisa Ibhasi le-CAN, ngilandela izinyathelo ezilula ukuze ngikwenze kusebenze kahle:

• Gcina i-transceiver iseduze nesixhumi: Ibanga elifushane lithuthukisa ikhwalithi yesignali ngokunciphisa izinkinga.

• Sebenzisa izimpawu zebhasi ze-CAN eceleni: Izimpawu zobude obufanayo zisiza ekugwemeni ukuphazamiseka nokugcina ukuxhumana kuzinzile.

• Engeza izingxenye zokuvikela kumasekethe: I-diode ye-TVS ivikela uhlelo ekukhuphukeni kwamandla kagesi ezimweni ezinzima.

• Sebenzisa ama-resistor afanele ekugcineni komugqa: Lokhu kuvimbela ukuzwakala kukagesi futhi kugcine izimpawu zicacile.

Lawa macebiso enza Ibhasi le-CAN iqinile futhi ithembekile, ngisho nasezimisweni ezinzima.

Amathiphu Okusebenzisa i-RS-485

Ngoba I-RS-485, Ngisebenzisa izindlela ezilula ukuthuthukisa ukusebenza kwayo ezinhlelweni ezinomsindo noma ezifinyelela kude:

• Khetha izintambo ezisontekile: Lezi zintambo zinciphisa umsindo kagesi, zigcina izimpawu zicacile emabangeni amade.

• Setha ukubandlulula okuphephile: Lokhu kugcina uhlelo luzinzile uma kungekho madivayisi athumela idatha.

• Funda ngezinhlobo zomsindo: Ukwazi umehluko phakathi komsindo wokwehluka nomsindo wemodi kusiza ukulungisa izinkinga ezithile.

Lezi zinyathelo ziyasiza I-RS-485 hlala uthembekile, ngisho nasezindaweni ezinzima. Ukulandela lawa macebiso kuqinisekisa uhlelo lokuxhumana oluqinile.

Amacala Okusetshenziswa Kahle Kakhulu Ebhasini Le-CAN

Ngiphakamisa ukusebenzisa Ibhasi le-CAN ezimweni ezidinga ukuxhumana okusheshayo nokungenamaphutha. Kusebenza kahle kakhulu ku:

• Izimoto nezimoto: Ixhumanisa izinzwa nabalawuli ukuze kube nokuxhumana okusheshayo nokuthembekile.

• Imishini yasefektri: Kuhle kakhulu ekuhlanganiseni imishini edinga isikhathi esinembile.

• Amathuluzi ezokwelapha: Kuqinisekisa ukuthi amadivayisi abalulekile abelana ngedatha enembile ngokushesha kwezempilo.

Ikhono layo lokulungisa amaphutha nokusingatha imiyalezo kahle lenza ifaneleke kakhulu emisebenzini egxile ekuphepheni.

Amacala Okusetshenziswa Kahle Kakhulu e-RS-485

I-RS-485 ilungele izindawo ezidinga ukuxhumana okude kanye nezindleko eziphansi. Iwusizo kakhulu ku:

• Izinhlelo zokwakha: Ixhumanisa izinto ezifana nokushisa nokukhanyisa ezindaweni ezinkulu.

• Amathuluzi wamandla: Ixhuma amamitha kanye nabalawuli kumagridi kagesi kanye nokusetha kwelanga.

• Izinhlelo ezindala: Isebenza nemishini emidala, okwenza kube lula ukuthuthukisa.

Idizayini yayo elula neqinile yenza I-RS-485 ukukhetha okuhlakaniphile kwezimboni eziningi.

Ukuqonda Kochwepheshe be-BSLBATT

Kwa-BSLBATT, ngisebenzise kokubili Ibhasi le-CAN futhi I-RS-485 kumaphrojekthi amaningi. Ngayinye inamandla ayo. Ukukhetha efanele kungathuthukisa indlela uhlelo olusebenza ngayo. Nanka amanye amathiphu engiwatholile.

Icebiso: Khetha iphrothokholi efanela izidingo zephrojekthi yakho. Lokhu kusiza ukonga imali futhi kuthuthukisa ukusebenza.

Kungani i-CAN Bus ikhethekile

ngicabanga Ibhasi le-CAN kwezinhlelo ezidinga ukuxhumana okusheshayo nokuthembekile. Amakhono ayo okulungisa amaphutha ayenza ibe yinhle kakhulu emisebenzini yokuphepha. Isibonelo, ezimotweni zikagesi, Ibhasi le-CAN ixhumanisa uhlelo lwebhethri nezinye izingxenye. Lokhu kuqinisekisa ukwabelana ngedatha okuphephile nokunembile, okubaluleke kakhulu.

Kungani i-RS-485 Iwusizo

I-RS-485 kungcono kakhulu ekuthumeleni idatha emabangeni amade. Ngikusebenzisile ku izinhlelo zelanga ukuxhumanisa ama-inverter nama-monitor ezindaweni ezinkulu. Kulula futhi kushibhile, okwenza kube kuhle kakhulu ngesabelomali esincane.

Ngokwami ​​umsebenzi, ukwazi ukuthi inqubo ngayinye yenzani kangcono kusiza kakhulu. Kwa-BSLBATT, ngihlala ngihlose ukudala izixazululo ezifanelana nephrojekthi ngayinye. Lokhu kuqinisekisa ukuthi izinhlelo zithembekile futhi zisebenza kahle ngaso sonke isikhathi.

Ukukhetha phakathi Ibhasi le-CAN futhi I-RS-485 kuncike kulokho uhlelo olukudingayo. Ibhasi le-CAN kuhle kakhulu ekuxhumaneni okusheshayo nokungenamaphutha. I-RS-485 isebenza kahle kakhulu uma uhamba ibanga elide futhi ishibhile.

Ithiphu: Sebenzisa Ibhasi le-CAN ngemisebenzi ebalulekile njengezinhlelo zezimoto. Khetha I-RS-485 kumanethiwekhi alula ahlanganisa izindawo ezinkulu.

Imibuzo Evame Ukubuzwa

Uyini umehluko omkhulu phakathi kwe-CAN Bus ne-RS-485?

Umehluko oyinhloko usezikhwepheni zabo. Ibhasi le-CAN kuhle kakhulu ekuxhumaneni kwesikhathi sangempela futhi okungenamaphutha. I-RS-485 isebenza kangcono uma uhamba ibanga elide futhi ishibhile.

Ngingazisebenzisa zombili izindlela zohlelo ohlelweni olulodwa?

Yebo, kokubili kungasebenza ndawonye. Isibonelo, ngisebenzisa Ibhasi le-CAN ngemisebenzi ebalulekile kanye I-RS-485 yokuthumela idatha kude ohlelweni olufanayo.

Iyiphi iphrothokholi elula ukuyisetha?

I-RS-485 kulula ukukusetha. Idinga ihadiwe nesofthiwe eyinkimbinkimbi kakhulu kune Ibhasi le-CAN, okwenza kube ngcono ezinhlelweni eziyisisekelo.

Ithiphu: Sebenzisa I-RS-485 ukuze kube lula ukusethwa kanye Ibhasi le-CAN kwezinhlelo ezithuthukisiwe ezidinga ukuphepha kanye nesivinini.