Chii chinonzi RS 422? Kunzwisisa Seri Yekutaurirana Standard
Iyo RS-422 standard, inozivikanwawo seTIA/EIA-422, chikamu chakakosha chekutaurirana. Inoshandiswa zvakanyanya mumaindasitiri uye otomatiki minda. Iyo inoshandisa kusiyanisa kusaina uye yakaenzana voltage dhijitari interface yekuvimbika kuendesa data.
Iyi chiyero yakagadzirwa neElectronic Industries Alliance (EIA). Yakakurumbira nekuti yakanakira kutumira data pamusoro pemadaro marefu.
Iyo RS-422 chiyero ine akakosha maficha. Kusiyanisa kwayo kusaina uye yakaenzana voltage digital interface inoita kuti ive yakakwana yekukurumidza uye yakavimbika kuendesa data. Inowanzo shandiswa mukutaurirana, uko kutumira data kwakakosha.
Muindasitiri uye otomatiki, RS-422 inobatsira zvishandiso kutaura kune mumwe nemumwe. Yakanakira kuendesa data kure kure. Inoshandiswawo mukutaurirana kwe serial, uko kuendesa data kwakakosha.
Zviri Mukati
Key Takeaways
Iyo RS-422 yakajairwa ndeye serial yekutaurirana chiyero chinoshandisa musiyano wechiratidzo uye yakaenzana voltage digital interface.
Chiyero chacho chinoshandiswa zvakanyanya mumaindasitiri uye otomatiki maapplication nekuda kwekugona kutsigira kufambisa kwedata kureba.
Iyo RS-422 yakajairwa yakanakira zvikumbiro zvinoda kukurumidza-kumhanya uye kwakavimbika kufambisa data.
Chiyero chinowanzoshandiswa mumashandisirwo ekutaurirana, uko kufambiswa kwedata kwakakosha.
Iyo RS-422 chiyero inozivikanwa zvakare seTIA/EIA-422.
Chiyero chinotsigira kufambiswa kwedata pakati pemidziyo mumaindasitiri uye otomatiki maapplication.
Mamiriro ehunyanzvi eRS-422
RS-422 ndiyo yakakurumbira protocol ye serial kutaurirana. Iyo inozivikanwa nekuve yakavimbika uye inoshanda. Inoshandisa chiratidzo chakasiyana, chinorwisa ruzha zvakanaka. Iyi nzira inotumira data pamusoro petambo dzakamonyoroka, dzinosvika pamamita 1,200 kana 3,900 tsoka.
RS-422 inoshanda nezvose zviri zviviri point-to-point topology uye unidirectional multidrop mabhazi setups. Mukunongedza-ku-point, mumwe mutyairi anotaura kune mumwe anogamuchira. Mubhazi remultidrop, mutyairi mumwe anotaura nevazhinji vanogamuchira. Kusvikira kumidziyo makumi matatu nembiri inogona kubatana mubhazi remultidrop, riine mutyairi mumwechete uye 31 vanogamuchira.
Iyi tafura inotevera inopfupisa iyo yakakosha tekinoroji yakatarwa yeRS-422:
| Parameter | Value |
| Maximum Distance | 1,200 mamita(3,900 tsoka) |
| Maximum Devices | 32 (1mutyairi, 31 vanogamuchira) |
| Cable Type | Matambo maviri akamonyoroka |
| Topology | Point-to-point, unidirectional multidrop bhazi |
Kuziva aya mafungidziro ndiko kiyi yekumisikidza RS-422 masisitimu. Inobatsira kuona kuti data inofamba zvakavimbika uye zvinobudirira pamadaro marefu.
Network Topology uye Device Configuration
Electronic Industries Alliance (EIA) yakaunza RS-422 muna 1975. Yakatsiva RS-232C, ichipa kumhanya kuri nani, kusadzivirira ruzha, uye kureba kwetambo. Iyi chiyero inotsigira yakazara duplex kutaurirana, ichibvumira panguva imwe chete yekufambisa data uye kugamuchira.
Iyo network topology yeRS-422 inowanzo sanganisira imwechete master mudziyo uye akawanda evaranda zvishandiso. Iwo akabatana achishandisa marudzi akasiyana-siyana ekubatanidza, akadai seDB-25 uye DC-37.
Imwe yemabhenefiti akakosha eRS-422 kugona kwayo kutsigira kureba kwetambo. Izvi zvinoita kuti ive yakanaka kune maindasitiri ekushandisa uko michina inowanzo kupatsanurwa nemafaro makuru. Iyo yakajairwa ruzha kusadzivirirwa zvakare inovimbisa yakavimbika data kutapurirana, kunyangwe munzvimbo dzine akakwira mazinga ekukanganiswa kwemagetsi.
Device Configuration
Kugadziriswa kwemudziyo kwakakosha muRS-422 network. Inotarisa kuyerera kwe data pakati pemidziyo. Iyo tenzi mudziyo unowanzo kudzora maitiro ekutaurirana, kutumira mirairo kumidziyo yevaranda uye kugamuchira data mukupindura.
Iko kushandiswa kweakazara duplex kutaurirana kunogonesa kuendesa data panguva imwe chete uye kugamuchira. Izvi zvinowedzera kushanda kwese kwetiweki.
Network Topology
Iyo network topology yeRS-422 inogona kugadzirwa nenzira dzakasiyana, zvichienderana neiyo chaiyo application. Mamwe akajairika topology anosanganisira point-to-point, point-to-multipoint, uye multipoint.
Sarudzo yetopology inoenderana nehuwandu hwemidziyo, chinhambwe chiri pakati pavo, uye inodiwa yekumhanyisa data. Nekunzwisisa iyo network topology uye kumisikidzwa kwechishandiso, vashandisi vanogona kukwidziridza yavo RS-422 network kuti ivimbike uye inoshanda kufambisa data.
Ndeupi musiyano uripo pakati peRS-232 neRS-422
RS-232 uye RS-422 zvinosiyana zvakanyanya mumatumire avanoita masaini. RS-232 inoshandisa siginecha imwe chete. Kune rimwe divi, RS-422 inoshandisa kusiyanisa kusaina. Shanduko iyi inokanganisa mitengo yedata, mhando yechiratidzo, uye kuti chiratidzo chinogona kufamba kusvika papi.
RS-232C, kuwedzera kweRS-232, inoshandisawo siginecha imwe chete. Izvi zvinodzikamisa mareti ayo data uye chiratidzo chemhando zvichienzaniswa neRS-422. RS-422 yekusiyanisa kusaina, zvisinei, inotsigira yakakwirira data mareti uye nani chiratidzo chemhando pamusoro pemadaro marefu.
Kuenzanisa kweSignal Characteristics
Heino misiyano mikuru pakati peRS-232 neRS-422:
RS-232: siginecha imwe chete, yakaderera data data, uye yakaderedzwa chiratidzo chemhando pamusoro pehurefu hwetambo.
RS-422: masiginecha akasiyana, mareti akakwira data, uye yakagadziridzwa chiratidzo chemhando pamusoro pehurefu hwetambo.
Kuenzanisa kweCable Specifications
Cable specifications dzinosiyanawo pakati pezviviri izvi. RS-422 tambo dzinogona kubata hurefu hurefu nekuda kwekusiyanisa kusaina. Izvi zvinochengeta kunaka kwechiratidzo kuri nani. RS-232 tambo, zvisinei, dzine hurefu hupfupi nekuda kwekusaina-kunopera-kunopera.
Muchidimbu, kusarudza pakati peRS-232 neRS-422 zvinoenderana nezvaunoda. RS-422 iri nani kune maapplication anoda yakakwirira data mareti uye kureba kwetambo kureba. RS-232 yakanaka kune mapfupi madaro uye yakaderera data data zvinodiwa.
Ndeupi musiyano uripo pakati peRS-422 neRS-485
RS-422 uye RS-485 zvinosiyana zvakanyanya mukuseta kwavo uye kuti zvishandiso zvinobatana sei. RS-485 inoshandisa chivakwa chebhazi, ichibvumira michina yakawanda kugovera mutsara mumwe. Izvi zvakanakira setups inoda akawanda ekubatanidza. RS-422, zvisinei, yakagadzirirwa kubatanidza zvakananga pakati pemapoinzi maviri.
RS-485 iri nani kumapurojekiti anoda akawanda maturusi kuti ataure kune mumwe nemumwe. Inokutendera kuti ubatanidze madhiraivha akawanda kumutsara mumwe. Izvi zvakanakira zvigadziriso zveindasitiri uko michina yakawanda inofanirwa kutaurirana. RS-422, ine mutyairi mumwe chete uye vaviri vanogamuchira, iri nani kune yakananga, inonongedza-ku-point yekubatanidza.
Network topology: RS-485 chivakwa chebhazi, nepo RS-422 iri point-to-point topology.
Device configuration: RS-485 inobvumira vatyairi vakawanda uye vanogamuchira, nepo RS-422 ine mutyairi mumwe chete uye inogamuchira peya.
Rodha mwero: RS-485 ine 12-kΩ chiyero chemutoro, nepo RS-422 ine chiyero chakasiyana chekuremerwa.
Kuziva mutsauko uripo pakati peRS-422 neRS-485 kiyi yekutora iyo yakakodzera yeprojekti yako. Funga nezvemhando yetiweki, kuti zvishandiso zvinobatana sei, uye chiyero chekuremerwa. Izvi zvinokubatsira kuti usarudze mwero wakanakisa pane zvaunoda, ingave iri RS-422 kana RS-485.
Zvakanakira RS-422 Pamusoro pemamwe Matemo
RS-422 ine zvakawanda zvakanaka, kunyanya mumaindasitiri uye otomatiki minda. Inogona kubata nhamba huru yezviteshi, yakakwana kune makuru masisitimu. Iyo zvakare ine yakakwirira mitoro kuramba, kuve nechokwadi kuti data inotumirwa zvakavimbika.
Zvakanakira mune Industrial Applications
Mune zvigadziriso zvemaindasitiri, RS-422 inopenya neyakaenzana-voltage digital interface. Iyi ficha inorwisa ruzha uye inochengetedza kutapurirana data kwakadzikama. Kumiswa kwetambo uye hunhu impedance inoitawo basa rakakura mukuita kwesystem. RS-422 inobvumira anosvika makumi matanhatu nemana kubatana, zvichiita kuti ive inogoneka kune akawanda mashandisiro.
Zvakanakira mune otomatiki Zvishandiso
Mune otomatiki, RS-422 inoshandisa 0.5-ul transceivers yekukurumidza kuendesa data uye kwakavimbika kutaurirana. Yakanaka zvakare pakurwisa ruzha, inova yakakosha munzvimbo dzine ruzha. RS-422 isarudzo yepamusoro yekuvimbika kwayo uye kugona mune otomatiki, inofarirwa nevazhinji vagadziri uye vanobatanidza.
Zvakajairwa Zvishandiso zveRS-422
RS-422 inoshandiswa mumaindasitiri mazhinji nekuti yakavimbika uye inochinjika. Chishandiso chayo chinoenderana nedhizaini inoita kuti ive yakakwana kune zvakasiyana zvinodiwa. Inogona kubata hurefu hwetambo hunosvika 1 km, iyo yakanaka kune zvishandiso zviri kure.
Mune zvigadziriso zveindasitiri, RS-422 ndiyo kiyi kune 1 km masisitimu anoda kukurumidza kufambisa data. Yayo 100 kbps yekusaina mareti akakwana kune nekukurumidza uye yakavimbika data. Uyezve, yayo ± 20% kushivirira inobatsira zvishandiso kutaura kunyangwe neruzha kana kukanganisa.
Industrial Applications
RS-422 isarudzo yepamusoro yekushandiswa kwemaindasitiri sekugadzira, kudzora maitiro, uye otomatiki. Kugona kwayo kubata madaro marefu uye data inokurumidza inoita kuti ive yakanaka kune zviri kure-kure zvishandiso.
Automation Applications
Mune otomatiki, RS-422 inodzora uye inotarisisa zvishandiso semotor, pombi, uye mavharuvhu. Kuvimbika kwayo uye kuchinjika kwakaringana kune chaiyo-nguva kutonga uye kutarisa.
| Application | Tsanangudzo |
| Industrial Automation | RS-422 inoshandiswa kudzora uye kutarisa zvishandiso mumaindasitiri otomatiki maapplication |
| Process Control | RS-422 inoshandiswa kudzora uye kutarisa zvishandiso mumaitiro ekudzora maapplication |
| Automation | RS-422 inoshandiswa kudzora uye kutarisa zvishandiso mune otomatiki maapplication |
Kuisa uye Maintenance Kufunga
Paunenge uchiseta RS-422 zvishandiso, funga nezvehurefu hwetambo uye nemhedzisiro yayo pakumhanyisa data. Tambo yakareba inogona kuderedza kutapurirana kwedata. Semuenzaniso, 500 m tambo inongotsigira 200 kbps, iyo inogona kunge isingakwane kune zvese zvinodiwa.
Kusarudza kureba kwetambo kwakakosha pakufambisa data kwakavimbika. Mhepo yemutyairi inobuda uye magetsi ekupinda emutyairi anofanira kuenderana. Izvi zvinodzivirira kurasikirwa nedata kana huwori. Netambo chaiyo uye kuseta mudziyo, vashandisi vanogona kudzivirira zvikanganiso uye kuona kutaurirana kwakanaka.
Cable Installation
Kuisa tambo nemazvo kwakakosha kudzivirira kukanganisa uye kuve nechokwadi chemhando yedata. Matambo maviri akamonyoroka akanakira kuderedza ruzha nekuvandudza simba rechiratidzo. Kutevera nhanho idzi kunobatsira mukumisikidza kwakabudirira uye kuchengetedza kuita kwakakwira.
Device Configuration
Kugadzirisa zvishandiso nemazvo kwakakoshawo kune RS-422 setup. Vatyairi nevagamuchiri vanofanira kugadzirwa kuti vashande pamwe chete zvakanaka. Nekutarisa kumhanya kwedata uye kureba kwetambo, vashandisi vanogona kuwana kuita kwakanyanya kubva kumidziyo yavo.
Mhedziso
Iyo RS-422 chiyero ndeye yakavimbika uye inosiyana-siyana yekutaurirana protocol. Inoshandiswa zvakanyanya mumaindasitiri uye otomatiki minda. Tsigiro yayo yetambo refu, yakakwirira data mareti, uye nani ruzha kusadzivirirwa kunoita kuti ive sarudzo yepamusoro.
Sezvo tekinoroji ichifambira mberi, tichaona zvimwe budiriro muRS-485 yakajairwa nenzvimbo dzine hukama. Izvi zvingangounza zvakatowanda mabhenefiti kune vashandisi.
Pfupiso Yepfungwa Dzakakosha
Chinyorwa chakafukidza RS-422's tekinoroji ruzivo, senge chiratidzo chezviratidzo uye zvinodiwa netambo. Yakataurawo nezve network topology uye kuseta mudziyo. Uyezve, yakaenzanisa RS-422 neRS-232 uye RS-485 zviyero.
RS-422's mabhenefiti ekushandiswa kwemaindasitiri uye otomatiki akaiswa pachena. Zvishandiso zvakajairika uye mazano ekuisa zvakakurukurwa zvakare.
Kubudirira Kweramangwana
Kutarisa kumberi, kubatanidza rs-485 transceivers uye kugadzirisa yekupinza impedance kunogona kuvandudza RS-422. Inogona kutsigira kusvika makumi matatu nemaviri ULS uye inobata 8x mamwe ma node kupfuura RS-232.
Analog zvishandiso uye akajairwa rs-485/rs-422 transceivers ari kubuda. Izvi zvinoratidza ramangwana rakajeka reRS-422, kusangana nezvinodiwa zvemaindasitiri uye otomatiki zvikamu.
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