CAN bas fasali:
1. International misali matakin masana'antu filin bas, abin dogara watsa, high real-lokaci;
2. Tsawon watsawa mai nisa (har zuwa 10km), saurin watsawa (har zuwa 1MHz bps);
3. Bus guda ɗaya na iya haɗawa har zuwa 110 nodes, kuma ana iya fadada adadin nodes cikin sauƙi;
4. Multi master tsarin, daidai matsayi na duk nodes, dace sadarwar yanki, babban amfani da bas;
5. High real-lokaci, bas-lalacewa bas fasaha fasaha, babu jinkiri ga nodes tare da babban fifiko;
6. Kullin CAN ɗin da ba daidai ba zai rufe ta atomatik kuma ya yanke haɗin tare da bas, ba tare da shafar sadarwar bas ba;
7. Saƙon na ɗan gajeren tsari ne kuma yana da kayan aikin CRC, tare da ƙananan yuwuwar tsangwama da ƙarancin kuskuren bayanai;
8. Gano kai tsaye ko an aika saƙon cikin nasara, kuma kayan aikin na iya sake aikawa ta atomatik, tare da babban amincin watsawa;
9. Aikin tace saƙon kayan masarufi na iya karɓar mahimman bayanai kawai, rage nauyin CPU, da sauƙaƙe shirye-shiryen software;
10. Za'a iya amfani da nau'i-nau'i na yau da kullum, na USB na coaxial ko fiber na gani azaman hanyar sadarwa;
11. Tsarin bas na CAN yana da tsari mai sauƙi da babban farashi.
Bayani na RS485
1. Lantarki halaye na RS485: dabaru "1" da aka wakilta + (2-6) V irin ƙarfin lantarki tsakanin layi biyu;Logic "0" yana wakilta ta bambancin ƙarfin lantarki tsakanin layi biyu kamar - (2-6) V. Idan matakin siginar siginar ya kasance ƙasa da RS-232-C, ba shi da sauƙi don lalata guntu na kewayawa, kuma wannan matakin ya dace da matakin TTL, wanda zai iya sauƙaƙe haɗin kai tare da kewayen TTL;
2. Matsakaicin adadin watsa bayanai na RS485 shine 10Mbps;
3. RS485 dubawa shine haɗuwa da daidaitaccen direba da mai karɓa na daban, wanda ke haɓaka ikon tsayayya da tsangwama na yau da kullum, wato, tsangwama mai kyau;
4. Matsakaicin madaidaicin ƙimar watsa nisa na RS485 shine ƙafa 4000, wanda a zahiri zai iya kaiwa mita 3000.Bugu da kari, transceiver daya ne kawai aka yarda a haɗa shi zuwa RS-232-C interface a cikin motar bas, wato ƙarfin tashar guda ɗaya.Motar RS-485 tana ba da damar har zuwa 128 transceivers don haɗawa akan bas ɗin.Wato tana da ikon tashoshi da yawa, don haka masu amfani za su iya amfani da hanyar sadarwa ta RS-485 guda ɗaya don kafa cibiyar sadarwar na'urar cikin sauƙi.Koyaya, mai watsawa ɗaya ne kawai ke iya watsawa akan bas ɗin RS-485 a kowane lokaci;
5. RS485 dubawa shine mafi kyawun ƙirar siriyal ɗin da aka fi so saboda kyakkyawan rigakafin amo, nesa mai nisa mai nisa da ƙarfin tashoshi da yawa .;
6. Domin rabin duplex cibiyar sadarwa hada da RS485 musaya gabaɗaya na bukatar wayoyi biyu kawai, RS485 musaya ana daukar kwayar cutar ta garkuwa Twisted biyu.
Bambance-bambance tsakanin CAN bas da RS485:
1. Gudun gudu da nisa: Tazarar da ke tsakanin CAN da RS485 da ake watsawa a cikin babban gudun 1Mbit/S bai wuce 100M ba, wanda za a iya cewa ya yi kama da babban gudun.Duk da haka, a cikin ƙananan gudu, lokacin da CAN ya kasance 5Kbit/S, nisa zai iya kaiwa 10KM, kuma a mafi ƙanƙanci gudun 485, zai iya kaiwa kusan 1219m kawai (ba gudun ba da sanda).Ana iya ganin cewa CAN yana da cikakkiyar fa'ida a cikin watsawa mai nisa;
2. Amfani da Bus: RS485 tsarin bawa ne guda ɗaya, wato masters ɗaya ne kawai ke iya kasancewa a cikin bas ɗin, kuma ana fara sadarwa da shi.Ba ya bayar da umarni, kuma nodes masu zuwa ba za su iya aika shi ba, kuma yana buƙatar aika amsa nan da nan.Bayan karbar amsa, mai gida ya tambayi kumburi na gaba.Wannan shine don hana nodes da yawa aika bayanai zuwa bas, haifar da rudani.Bus ɗin CAN tsarin bawa ne da yawa, kuma kowane kumburi yana da mai sarrafa CAN.Lokacin da nodes da yawa suka aika, za su daidaita kai tsaye tare da lambar ID da aka aiko, ta yadda bayanan bas ɗin su kasance masu kyau da ɓarna.Bayan kumburi ɗaya ya aika, wani kumburi zai iya gano cewa bas ɗin kyauta ne kuma aika shi nan da nan, wanda ke adana tambayar mai masaukin, inganta ƙimar amfani da bas, da haɓaka saurin sauri.Don haka, ana amfani da bas ɗin CAN ko wasu irin waɗannan bas ɗin a cikin tsarin da manyan buƙatun aiki kamar motoci;
3. Tsarin gano kuskure: RS485 kawai yana ƙayyade Layer na zahiri, amma ba Layer mahada ba, don haka ba zai iya gane kurakurai ba sai dai idan akwai gajerun hanyoyin da sauran kurakurai na jiki.Ta wannan hanyar, yana da sauƙi don lalata kumburi da aika bayanai zuwa bas ɗin da matsananciyar wahala (aika 1 koyaushe), wanda zai gurgunta duka bas ɗin.Don haka, idan kumburin RS485 ya gaza, hanyar sadarwar bas zata mutu.Bus ɗin CAN yana da mai sarrafa CAN, wanda zai iya gano kowane kuskuren bas.Idan kuskuren ya wuce 128, za a kulle ta atomatik.Kare bas din.Idan an gano wasu nodes ko nasu kurakurai, za a aika da firam ɗin kurakurai zuwa bas don tunatar da sauran nodes cewa bayanan ba daidai ba ne.Yi hankali, kowa da kowa.Ta wannan hanyar, da zarar shirin CPU na bus ɗin CAN ya gudu, mai kula da shi zai kulle kuma ya kare bas ɗin ta atomatik.Saboda haka, a cikin hanyar sadarwa tare da manyan bukatun tsaro, CAN yana da karfi sosai;
4. Farashin farashi da horo: Farashin na'urorin CAN kusan ninki biyu na 485. Ta wannan hanyar, sadarwar 485 yana da matukar dacewa dangane da software.Muddin kun fahimci sadarwar serial, za ku iya tsarawa.Yayin da CAN na buƙatar injiniyan ƙasa don fahimtar hadadden Layer na CAN, kuma babbar manhajar kwamfuta ita ma tana buƙatar fahimtar ka'idar CAN.Ana iya cewa kudin horon yana da yawa;
5. An haɗa bas ɗin CAN zuwa motar bas ta jiki ta hanyar CANH da CANL na tashoshin fitarwa guda biyu na CAN mai sarrafa guntu guntu 82C250.Tashar ta CANH na iya kasancewa a cikin babban matakin ko dakatarwa kawai, kuma tashar CANL na iya kasancewa a cikin ƙananan matakin ko dakatarwa.Wannan yana tabbatar da cewa, kamar yadda yake a cikin hanyar sadarwa ta RS-485, lokacin da tsarin yana da kurakurai kuma nodes masu yawa suna aika bayanai zuwa bas a lokaci guda, bas ɗin zai zama ɗan gajeren kewayawa, don haka yana lalata wasu nodes.Bugu da kari, kumburin CAN yana da aikin rufewa ta atomatik lokacin da kuskuren ya yi tsanani, ta yadda aikin sauran nodes a cikin motar bas din ba zai yi tasiri ba, don tabbatar da cewa ba za a sami matsala a cikin hanyar sadarwa ba, kuma bas din zai kasance a cikin yanayin "kulle" saboda matsalolin kowane nodes;
6. CAN yana da cikakkiyar ka'idar sadarwa, wanda CAN mai sarrafa guntu zai iya gane shi da guntuwar haɗin gwiwarsa, don haka yana rage wahalar ci gaban tsarin da rage ci gaba da ci gaba, wanda ba zai iya kwatantawa da RS-485 ba kawai tare da ka'idar lantarki.
Shenzhen Zhongling Technology Co., Ltd., tun lokacin da aka kafa shi a cikin 2013, ya himmantu ga masana'antar sarrafa mutum-mutumi, haɓakawa, samarwa da sayar da injunan servo da direbobi tare da ingantaccen aiki.Babban aikinta na servo hub direban direbobi, ZLAC8015, ZLAC8015D da ZLAC8030L, sun ɗauki sadarwar bas na CAN/RS485, bi da bi suna tallafawa CiA301 da CiA402 ƙananan ka'idojin CANopen yarjejeniya/modbus RTU;Yana goyan bayan kula da matsayi, sarrafa saurin gudu, sarrafa wutar lantarki da sauran hanyoyin aiki, kuma ya dace da mutummutumi a lokuta daban-daban, yana haɓaka haɓakar masana'antar robot.
Lokacin aikawa: Nuwamba-29-2022