CAN Bus vs RS-485 Ndeipi Nzira Yekutaurirana Iri Nani?

Kunzwisisa Bhazi reCAN

Pfupiso

Bhazi reCAN rakanaka nekuti isystem ine mamaster akawanda. Izvi zvinoreva kuti michina yakawanda inogona kutaura pasina kuda main controller imwe chete. Rinoshandisa smart error-checking kuti ritumire data zvakavimbika. Pane kutarisa kuti meseji inobva kupi kana kuti inoenda kupi, rinotarisa kuti meseji yacho inoti chii. Izvi zvinoita kuti ive yakanaka pamabasa chaiwo.

Sisitimu yeCAN ine chimiro chakarongwa. Inoshandisa ma data frames ane zvikamu zvakaita seIDs neminda yedata. Zvikamu izvi zvinobatsira kuronga mameseji uye kuita kuti zvinhu zvifambe zvakanaka. Kubva payakatanga muna 1993, sisitimu iyi yave nani zvikuru. Muna 2018, CAN XL version yakabuda, ichisvika kumhanya kwe10 Mbps.

Zvinhu Zvikuru

Bhazi reCAN rine zvimwe zvinhu zvakakosha. Rinoshandisa sisitimu yekutepfenyura, kuitira kuti zvishandiso zvese zvigone kunzwa mameseji. Izvi zvinobatsira michina kushanda pamwe chete zviri nyore. Rinogadzirisawo zvikanganiso roga, izvo zvakakosha pakuchengetedza.

Chimwe chinhu chakanaka ndechekuti inochinjika. Unogona kubatanidza zvishandiso zvishoma kana zvakawanda, uye zvinoshanda zvakanaka. Inochengetedzawo simba nekumutsa zvishandiso zvimwe chete kana zvichidikanwa. Izvi zvinoita kuti ive sarudzo yakanaka kune masisitimu akaomarara.

Mashandisirwo

Bhazi reCAN rakatanga kugadzirwa remotokari asi ikozvino rave kushandiswa kwese kwese. Unogona kuriwana mumafekitori, muzvipatara, uye muzvivakwa. Semuenzaniso, rinobatsira maelevator kuti afambe zvakachengeteka uye zvakanaka. Kugona kwaro kuzvigadzirisa kunoita kuti rive rakakwana pamabasa ekuchengetedza. Ingave iri mumotokari, mumichina, kana muzvivakwa, CAN Bus inoratidza kuti rinobatsira sei.

Kunzwisisa RS-485

Pfupiso

RS-485 yakasimba uye inoshanda zvakanaka pakufamba kwedata uye masaini emagetsi. Sisitimu iyi inobata nzvimbo dzine ruzha nekushandisa masaini akaenzana kuderedza ruzha. Inotumira data nenzira yakavimbika nekushandura masaini emagetsi kuita edhijitari. RS-485 inoshandisa voltage shoma ye +/- 200 mV, zvichiita kuti ive inochinjika kune dzakasiyana siyana. Izvi zvinoita kuti ive sarudzo yakanaka kune nzvimbo dzakaoma.

Zvinhu Zvikuru

RS-485, inonziwo TIA-485 kana EIA-485, ine zvinhu zvinobatsira. Masaini ayo akaenzana anovhara ruzha, izvo zvinobatsira munzvimbo dzine ruzha. Inobvumira zvishandiso zvakawanda kushandisa network imwe chete, senge Modbus kana Profibus systems. RS-485 inobvumira kutaurirana kwenzira mbiri pamutsetse mumwe chete, unonzi half-duplex. Inoshanda zvakanaka padaro refu, zvichiita kuti ive yakanaka kumafekitori. Izvi zvinoita kuti RS-485 ive sisitimu iri nyore uye yakavimbika.

Mashandisirwo

RS-485 yakakwana kunzvimbo dzinoda kutaurirana kure. Inoshandiswa mumafekitori, masisitimu ekuvaka, uye maturusi emagetsi. Uchaiwanawo muzvitima nemumichina yekurapa. Inobatanidza zvishandiso zvakawanda pane network imwe chete, kunyangwe munzvimbo dzine ruzha. Semuenzaniso, mumafekitori, inobatanidza masensa nemacontroller kuti zvinhu zvirambe zvichifamba. RS-485 inoshanda nemasisitimu ekare, zvichiita kuti zvive nyore kushandisa mumaindasitiri mazhinji.

Kuenzanisa CAN Bus neRS-485

Mitengo yeData

CAN Bus neRS-485 dzine kumhanya kwakasiyana kwedata. CAN Bus inogona kusvika 1 Mbps. Izvi zvinokurumidza zvakakwana kumota nemafekitori. RS-485 inogona kusvika 40 Mbps, izvo zvinokurumidza zvikuru. Asi RS-485 inononoka pakufamba kwenguva refu. Semuenzaniso, inoramba iri pa35 Mbps kwemamita gumi. Pakufamba kwenguva refu, inoderera kusvika 1 Mbps. Kumhanya uye daro zvakakosha pakusarudza pakati pazvo.

Rudzi rweKutaurirana

RS-485 inoshanda zvirinani padaro refu. CAN Bus inogona kutumira data riri kure nemamita makumi mana chete pa1 Mbps. Izvi zvakanaka kune masisitimu madiki akadai semanetiweki emota. RS-485 inogona kutumira data kure nemazana emamita. Izvi zvinoita kuti ive yakanaka kune magadzirirwo makuru akadai semafekitori kana masisitimu ekuvaka. Kana ndichida kubatanidza zvishandiso zviri kure, ndinosarudza RS-485.

Kugadzirisa Zvikanganiso

Kugadzirisa zvikanganiso kwakakosha zvikuru munzvimbo dzine ruzha. CAN Bus ine maturusi akavakirwa mukati ekutsvaga nekugadzirisa zvikanganiso. Inobata matambudziko akadai sekusangana kwemashoko kana data rakaipa pachayo. RS-485 haina maturusi aya. Kuti RS-485 ive yakavimbika, zvinodiwa hardware kana software yekuwedzera. Heino kuenzanisa kuri nyore:

Kuti ndiwane masisitimu akachengeteka uye akavimbika, ndinoda CAN Bus.

Kukwanisa kukura

Kukwanisa kukura kunoreva kuti sisitimu inokura zvakanaka sei nemidziyo yakawanda. RS-485 inobvumira michina yakawanda kugovana network imwe chete. Izvi zvinoshanda zvakanaka nemasisitimu akaita seModbus neProfibus. CAN Bus inoshandisa multi-master setup, saka michina yakawanda inogona kutaura panguva imwe chete. Inodzivirirawo kusawirirana kwemashoko zviri nyore. Ose ari maviri anokura zvakanaka, asi CAN Bus iri nani kune masisitimu akaomarara anoda kushanda pamwe chete panguva chaiyo.

Mutengo

Mutengo unonyanya kukosha mumapurojekiti. RS-485 yakachipa uye iri nyore kuisa. Inoshanda zvakanaka nemasystem ekare, zvichichengetedza mari. CAN Bus inodhura zvakanyanya nekuda kwezvinhu zvayo zvepamusoro. Izvi zvinosanganisira kugadzirisa zvikanganiso uye kubata zvishandiso zvakawanda. Kune mapurojekiti asina mari yakawanda, RS-485 isarudzo yakanaka. Asi kune masisitimu akavimbika uye anokurumidza, CAN Bus yakakodzera mutengo wekuwedzera.

Kusarudza Protocol Yakakodzera

Mazano Ekushandisa Bhazi reCAN

Paunenge uchishandisa Bhazi reCAN, ndinotevera matanho ari nyore kuti zvishande zvakanaka:

• Chengeta transceiver iri pedyo nechinobatanidza: Kufamba chinhambwe chipfupi kunovandudza kunaka kwechiratidzo nekuderedza matambudziko.

• Mhanya zviratidzo zvebhazi reCAN padivi nepadivi: Zviratidzo zvehurefu hwakafanana zvinobatsira kudzivirira kukanganiswa uye kuchengetedza kutaurirana kwakasimba.

• Wedzera zvikamu zvekudzivirira kumasekete: TVS diode inodzivirira sisitimu kubva pakukwira kwemagetsi kana mamiriro ezvinhu akaoma.

• Shandisa zvinodzivirira zvakakodzera pamagumo emutsetse: Izvi zvinomisa manzwi emagetsi uye zvinoita kuti masaini arambe akajeka.

Mazano aya anoita kuti Bhazi reCAN yakasimba uye yakavimbika, kunyangwe mumamiriro ezvinhu akaomarara.

Mazano Ekushandisa RS-485

Zve RS-485, Ndinoshandisa nzira dziri nyore kuti ndivandudze mashandiro ayo mumasisitimu ane ruzha kana kuti anosvika kure:

• Sarudza tambo dzakamonyoroka: Tambo idzi dzinoderedza ruzha rwemagetsi, zvichiita kuti zviratidzo zvirambe zviri pachena pakufamba kwenguva refu.

• Gadzirisa bias yakachengeteka yekukundikana: Izvi zvinoita kuti system igare yakasimba kana pasina michina iri kutumira data.

• Dzidza nezvemhando dzeruzha: Kuziva musiyano uripo pakati peruzha rwe differential ne mode kunobatsira kugadzirisa matambudziko chaiwo.

Matanho aya anobatsira RS-485 ramba wakavimbika, kunyangwe munzvimbo dzakaoma. Kutevedzera mazano aya kunovimbisa nzira yekutaurirana yakasimba.

Mabhokisi Akanakisisa Ekushandisa Bhazi reCAN

Ndinokurudzira kushandisa Bhazi reCAN mumamiriro ezvinhu anoda kutaurirana nekukurumidza uye pasina zvikanganiso. Inoshanda zvakanyanya kune:

• Mota nemota: Inobatanidza masensa nemacontroller kuti ikurukure nekukurumidza uye zvakavimbika.

• Michina yefekitori: Yakanakira kubatanidza michina inoda nguva chaiyo.

• Zvishandiso zvekurapa: Inoita kuti zvishandiso zvakakosha zvigovane ruzivo rwakarurama nekukurumidza muhutano.

Kugona kwayo kugadzirisa zvikanganiso uye kubata mameseji zvakanaka kunoita kuti ive yakakwana pamabasa anotarisa kuchengetedzeka.

Mabhokisi Akanakisisa Ekushandisa eRS-485

RS-485 Yakanakira nzvimbo dzinoda kutaurirana kure uye dzinoda mari shoma. Inonyanya kubatsira mu:

• Masisitimu ekuvaka: Inobatanidza zvinhu zvakaita sekupisa nemwenje munzvimbo dzakakura.

• Zvishandiso zvesimba: Inobatanidza mamita nemidziyo inodzora magetsi mumagridi emagetsi uye magadzirirwo ezuva.

• Masisitimu ekare: Inoshanda nemidziyo yekare, zvichiita kuti kugadziridzwa kuve nyore.

Dhizaini yayo iri nyore uye yakaoma inoita kuti RS-485 sarudzo yakangwara yemaindasitiri mazhinji.

BSLBATT Nyanzvi Yekunzwisisa

PaBSLBATT, ndakashandisa ese ari maviri Bhazi reCAN uye RS-485 mumapurojekiti akawanda. Rimwe nerimwe rine simba raro. Kusarudza rakakodzera kunogona kuvandudza mashandiro ehurongwa. Heano mamwe mazano kubva pane zvakaitika kwandiri.

Zano: Sarudza nzira inoenderana nezvinodiwa neprojekiti yako. Izvi zvinobatsira kuchengetedza mari uye zvinosimudzira mashandiro.

Nei bhazi reCAN rakakosha?

Ndinokurudzira Bhazi reCAN kune masisitimu anoda kutaurirana nekukurumidza uye kwakavimbika. Kugona kwayo kugadzirisa zvikanganiso kunoita kuti ive yakanaka pamabasa ekuchengetedza. Semuenzaniso, mumotokari dzemagetsi, Bhazi reCAN inobatanidza sisitimu yebhatiri nezvimwe zvikamu. Izvi zvinoita kuti pave nekugovaniswa kwedata kwakachengeteka uye kwakarurama, izvo zvakakosha zvikuru.

Nei RS-485 Ichishanda

RS-485 ndiyo yakanakira kutumira data kure kure. Ndakamboishandisa mu masisitimu ezuva kubatanidza ma inverter nema monitor munzvimbo huru. Zviri nyore uye zvakachipa, zvichiita kuti zvive zvakakwana kune vane mari shoma.

Kubva pabasa rangu, kuziva zvinonyatsoita protocol yega yega kunobatsira zvikuru. KuBSLBATT, ndinogara ndichiedza kugadzira mhinduro dzinoenderana neprojekiti yega yega. Izvi zvinoita kuti masisitimu avimbike uye ashande zvakanaka nguva dzese.

Kusarudza pakati Bhazi reCAN uye RS-485 zvinoenderana nezvinodiwa nesystem. Bhazi reCAN yakanaka pakutaurirana nekukurumidza uye pasina zvikanganiso. RS-485 inoshanda zvakanyanya pakufamba kure uye inodhura zvishoma.

ZanoShandisa Bhazi reCAN pamabasa akakosha akaita semasisitimu emota. Sarudza RS-485 kune network dziri nyore dzinofukidza nzvimbo dzakakura.

Mibvunzo Inowanzo bvunzwa

Ndeupi musiyano mukuru uripo pakati peCAN Bus neRS-485?

Musiyano mukuru uri mukusimba kwavo. Bhazi reCAN yakanaka pakutaurirana panguva chaiyo uye pasina zvikanganiso. RS-485 inoshanda zviri nani pakufamba kure uye inodhura zvishoma.

Ndingashandisa maprotocol ese ari maviri musystem imwe chete here?

Ehe, zvese zvinogona kushanda pamwe chete. Semuenzaniso, ini ndinoshandisa Bhazi reCAN pamabasa akakosha uye RS-485 yekutumira data kure mune imwe system.

Ndeipi protocol iri nyore kuisa?

RS-485 zviri nyore kuisa. Inoda hardware nesoftware zvisina kuoma kupfuura Bhazi reCAN, zvichiita kuti zvive nani kune masisitimu ekutanga.

ZanoShandisa RS-485 kuti zvive nyore kugadzirisa uye Bhazi reCAN kune masisitimu epamusoro anoda kuchengetedzeka nekukasira.