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Chii chinonzi serial RS232 Port?
2024-11-06 10:52:21
Iyo RS232 serial port ndeye yakakurumbira yekutaurirana interface chiyero inobvumira serial data kutamiswa pakati pemidziyo. Iyo RS232 standard, yakatanga kukurudzirwa neElectronic Industries Association (EIA) muma1960s, yakaratidza kukosha kwekubatanidza akasiyana Data Terminal Equipment (DTE), senge makomputa, kune Data Communication Equipment (DCE), senge modem. Iyi protocol yaive yakakosha mukutanga komputa network uye ichiri kushandiswa mune mamwe maindasitiri uye akamisikidzwa masisitimu maapplication nhasi.
Zviri Mukati
- 1. Kukosha Kwenhoroondo
- 2. Sei RS232 Inoramba Iine Basa?
- 3. Nheyo dzeSerial Communication
- 4. RS232 Protocol Inotsanangurwa
- 5. Inoshanda sei RS232?
- 6. Zvakajairwa Zvikumbiro zveRS232 Ports
- 7. Musiyano Pakati peRS232, RS485, uye RS422 Serial Ports
- 7. Musiyano Pakati peRS232, USB, uye Ethernet Ports
- 8. Zvakanakira uye Zvinogumira zveRS232 Ports
Kukosha Kwenhoroondo
Pamberi pe USB uye mamwe ekumhanya-mhanya, ma RS232 madoko aive akakosha pakubatanidza makomputa emunhu kune maperipherals semaprinta, mbeva, uye kunze kwekuchengetera. Iyo RS232 dhizaini inogashira yakazara-duplex kutaurirana, ichibvumira data kutumirwa uye kugamuchirwa panguva imwe chete pamusoro pekubatana kumwe chete.
Sei RS232 Inoramba Yakakodzera?
Kunyangwe kusimuka kwezvitsva zvinosangana, RS232 inoramba yakakosha nekuda kwekureruka kwayo, kuvimbika, uye kuenderana nemasisitimu enhaka. Semuyenzaniso, maindasitiri emuchina nemidziyo yekurapa ichiri kuvimba neRS232 zvinobatanidza seDB9 neDB25 nekuda kwekusimba kwavo uye nyore kugadzirisa matambudziko.
Nheyo dzeSerial Communication
Seri yekukurukurirana inzira yakakosha yekufambisa data pakati pemidziyo, uko ruzivo rwunotumirwa zvishoma nezvishoma kuburikidza nechiteshi chedata chimwe. Iyi nzira inosiyana nekutaurirana kwakafanana, iyo inofambisa akawanda mabhiti panguva imwe chete mumatanho akawanda. RS232 serial kutaurirana inonyanya kufarirwa nekuda kwekureruka kwayo, kuvimbika, uye kugona kuvhara madaro marefu pane kuwirirana kutaurirana.
RS232 Protocol Inotsanangurwa
Iyo RS232 protocol chiyero chinoshandiswa zvakanyanya kune serial data kutaurirana. Inotsanangurwa neElectronic Industries Association (EIA), inotsanangura mashandiro emuchina, magetsi, uye mashandiro eiyo interface pakati peData Terminal Equipment (DTE), sekombuta, uye Data Communication Equipment (DCE), yakadai semodemu. Iyi protocol inogonesa kufambiswa kwedata pane imwe chiteshi, ichitsigira yakazara-duplex kutaurirana uko data rinogona kutumirwa uye kugamuchirwa panguva imwe chete.
RS232 Inoshanda Sei?
Iyo RS232 yakajairwa inoshandisa yakatwasuka nzira yekuburitsa serial data. Dhata inofambiswa zvishoma nezvishoma kubva kune imwe mudziyo kuenda kune imwe kuburikidza neinopera-inopera siginecha ine yakafanotsanangurwa voltage mazinga uye kubata maoko mapuroteni. Chimiro cheRS232 chinoita kuti ive yakakodzera kune kure-kure, yakaderera-kumhanya kutaurirana pakati pemidziyo inoda inowirirana, yakavimbika data kuyerera.
Iyo RS232 protocol inoshanda kuburikidza neyakatsanangurwa-inotsanangurwa mazinga echiratidzo, mapini masisitimu, uye nzira dzekudzora kuyerera. Kushandisa kwayo kwekutanga uye kumisa mabheti mune asynchronous modhi inovimbisa huchokwadi, nepo Hardware uye software kubata maoko kunodzivirira data kufashukira. Iko kugona kutumira dhata kune yakatsanangurwa baud mazinga ane akajeka voltage zviyero zvinoita kuti RS232 ive yakavimbika, yakasimba sarudzo ye serial kutaurirana mune zvese nhaka uye maindasitiri masisitimu.
Zvakajairwa Zvishandiso zveRS232 Ports
Iyo RS232 port inoramba ichishandiswa zvakanyanya mumaindasitiri akasiyana siyana, ekutengesa, uye akamisikidzwa masisitimu kunyangwe mitsva yekutaurirana. Kuvimbika kwayo, kureruka, uye tsigiro yekutaurirana kureba kunoita kuti RS232 ive yakakosha mumashandisirwo uko kugadzikana uye nyore kwekugadzirisa matambudziko kwakakosha.
Zvishandiso zveMaindasitiri uye Zvekutengesa
Munzvimbo dzemaindasitiri, RS232 ports yakakosha pakubatanidza programmable logic controllers (PLCs), sensors, uye zvishandiso zvekushandisa. Iyo serial port inogonesa yakagadzikana kuendesa data pakati pemidziyo pamusoro pemafaro akareba, izvo zvakakosha mumafekitori, mitsetse yegungano, uye maitiro ekudzora masisitimu. Mienzaniso inosanganisira:
PLC kutaurirana: Inobvumira kudzora otomatiki kwemichina.
SCADA masisitimu: Supervisory Control uye Data Acquisition masisitimu anotsamira paRS232 yekuvimbika kufambisa data kubva kumidziyo iri kure.
Industrial sensors uye zviyero zvekuyera: RS232 inova nechokwadi chekutora data kwakaringana kwenguva yakareba.
RS232 mune Networking uye Modem Kukurukurirana
Mamodemu nemidziyo yetiweki yaive pakati pevakatanga kugamuchira RS232. RS232 inogonesa yakazara-duplex kutaurirana, ichibvumira data kuti riyerere mumativi ese panguva imwe chete, izvo zvakakosha mukufambiswa kwemashoko.
Zvishandiso zvakakosha muchikamu ichi zvinosanganisira:
Kubatana kweModem: RS232 inofambisa kutaurirana kwakavimbika pakati pemakomputa nemamodemu ekufambisa data pamitsara yefoni.
Router console ports: Marouters mazhinji achiri kushandisa RS232 yekutanga kumisikidza uye kugadzirisa matambudziko kuburikidza nekoni yekuwana.
RS232 muEmbedded Systems
Iko kureruka kweRS232 kunoita kuti ive yakanaka kune mamicrocontrollers uye akadzamidzirwa midziyo mumashandisirwo akaita serobhoti, otomatiki, uye zvemagetsi prototyping. Mune aya marongero, RS232 inopa yakatwasuka nzira yekufambisa dhata pakati peakamisikidzwa masisitimu nemaperipheral.
Microcontroller interfaces: Microcontrollers inowanzo sanganisira RS232 ports kuti itaurirane nemakombiyuta ekuronga uye kugadzirisa.
Robhoti yekudzora masisitimu: RS232 inoshandiswa kudzora madhiraivha emota, masensa, uye actuators mumarobhoti.
Diagnostic equipment: Zvishandiso zvekurapa uye zvemotokari zvekuongorora zvinowanzo shandisa RS232 kudzosera data rakakosha.
Musiyano Pakati peRS232, RS485, uye RS422 Serial Ports
Kuenzanisa Tafura: RS232 vs. RS485 vs. RS422| Attribute | RS232 | RS485 | RS422 |
| Signal Type | Single-end | Differential | Differential |
| Max Distance | Kusvika ku15 metres | Kusvika ku1200 metres | Kusvika ku1200 metres |
| Data Rate | Kusvikira ku115.2 kbps | Kusvikira ku10 Mbps | Kusvikira ku10 Mbps |
| Connection Type | Point-to-point | Multi-drop (kusvika 32 zvishandiso) | Point-to-point kana multi-drop |
| Noise Immunity | Low | High | High |
| Applications | Legacy systems, modem | Industrial automation | Medical, instrumentation |
Misiyano mikuru pakati peRS232, RS485, uye RS422 iri mune yavo mhando dzechiratidzo, huwandu, mitengo yedata, tsigiro yemidziyo yakawanda, uye maapplication.
RS232 inoshandisa single-end kuisa chiratidzo, izvo zvinoita kuti zvive nyore kuita ruzha uye kukanganisa, nepo RS485 neRS422 dzinoshandisa kusaina mutsauko, kutumira masaini semapeya emagetsi anopindirana kuti ape huru kusadzivirirwa kweruzha, kunyanya pamusoro pemadaro marefu.
Pane zve siyana uye kumhanya, RS232 inoshanda kune mapfupi-renji maapplication, anogumira kumamita gumi nemashanu uye yakaderera data data. RS485, zvisinei, inogona kushanda madaro anosvika zana nemakumi maviri emamita, kunyangwe ichimhanya yakaderera, ichiita kuti ive yakakodzera kune akawedzera maindasitiri network. RS422 inogona zvakare kusvika ku1200 metres uye, yakagadzirirwa nzvimbo-kune-poinzi kana mashoma akawanda-anodonha setups, inopa yakakwirira data mareti kupfuura RS232.
For multi-device kutaurirana, RS485 inomira pachena nekutsigira zvishandiso zvinosvika makumi matatu nemaviri pabhazi rimwe chete, zvichiita kuti ive yakakodzera kune akawanda-anodonhedza network. Kusiyana neizvi, RS232 inongobvumira kunongedzera-kune-inongedzo, ichiimisa kumidziyo miviri, nepo RS422 ichigona kubata akawanda anogashira asi mutyairi mumwe chete, zvichiita kuti zvive zvakakosha mumaseti anoda kutaurirana nemidziyo inosvika gumi.
About applications, RS232 inoshandiswa zvakanyanya mumidziyo yenhaka uye zvemagetsi zvevatengi. RS485 inosarurwa kune maindasitiri otomatiki kudzora akawanda maturusi pamusoro pemadaro akareba, nepo RS422 ichiwanzo shandiswa mumidziyo yekurapa uye yakakwirira-kumhanya, inodzivirira-ruzha-inopokana-ku-point kutaurirana.
Musiyano Pakati peRS232, USB, uye Ethernet Ports
| Attribute | RS232 | USB | Ethernet |
| Data Rate | Kusvikira ku115.2 kbps | Kusvikira ku20 Gbps | Kusvikira ku10 Gbps uye mberi |
| Distance | Kusvika ku15 metres | Kazhinji kusvika ku5 metres | Kusvika ku100 metres (mhangura) |
| Connection Type | Point-to-point | Hub-based, multi-device | Networked, multi-device |
| Connectors | DB9, DB25 | USB-A, USB-B, USB-C | RJ45 |
| Applications | Industrial, legacy | Consumer electronics | Networking, internet |
Misiyano yakakosha pakati peRS232, USB, uye Ethernet ndiyo yavo mareti e data, marenji ekubatanidza, marudzi ekubatanidza, uye akajairwa maapplication. RS232 inoshanda nekumhanya kwakaderera, nehupamhi hwe115.2 kbps, ichiita kuti ive yakanaka kune nyore kuchinjanisa data. USB, kune rumwe rutivi, inopa zvakanyanya kukurumidza data mazinga, ne USB 2.0 inosvika 480 Mbps uye USB 3.x inotsigira kusvika ku20 Gbps, ichibvumira michina kutumira data nekukurumidza. Ethernet inodarika zvese mukumisikidzwa kwebhizinesi, nekumhanya kwe10 Gbps kana kupfuura, zvichiita kuti ive yakakodzera kune networked nharaunda inoda kukurumidza uye kusingapindiki kuyerera kwedata.
Kana zvasvika range, RS232 inogumira kumamita gumi nemashanu uye inotsigira michina miviri chete, ichiiganhurira kushandiswa kwepfupi-renji. USB, inowanzovharwa pamamita mashanu, inogona kubatanidza michina yakawanda kuburikidza nemahubs. Ethernet, zvisinei, inotsigira kusvika mamita 100 pamusoro petambo dzemhangura, ichienderera mberi nefiber optics, zvichiita kuti ive yakanakira kubatanidza kure-kure muhofisi nemaindasitiri network.
Pane zve mhando dzekubatanidza, RS232 inongotsigira kutaurirana-ku-ku-point, iyo inogumira kune maviri-madhivhisi kumisikidzwa. USB inopa hub-based connections, iyo inobvumira michina yakawanda kutaurirana kuburikidza nechiteshi chimwe chete. Ethernet inobvumira kune akawanda-zvishandiso network, sezvo ma routers uye ma switch anobatanidza akawanda maturusi mukati metiweki.
RS232 inonyanya kushandiswa munhaka uye midziyo yemaindasitiri inoda nyore, yakavimbika data kutaurirana. USB inoshandiswa zvakanyanya mumagetsi evatengi, kunyanya kune maperipherals akadai sekiyibhodhi, maprinta, uye ekunze madhiraivha. Ethernet yakakosha munzvimbo dzakatenderedzwa, ichigonesa yakakwirira-kumhanya internet uye LAN yekubatanidza mune zvese zvekugara uye zvekutengesa marongero.
Zvakanakira uye Zvinogumira zveRS232 Ports
Zviteshi zveRS232 zvave zvakanyanya mukukurukurirana kwemakumi emakore, zvakanyanya kushandiswa mumasisitimu enhaka, industry pc China midziyo, uye midziyo yakaiswa mukati. Kunyangwe nekukwira kwezviyero zvitsva se USB neEthernet, RS232 inoramba iine basa mune chaiyo maapplication nekuda kweyakasarudzika mabhenefiti uye zvimwe zvipimo.
Zvakanakira zveRS232 Ports
Kureruka: RS232 iprotocol yakatwasuka, yakanakira maapplication ayo anoda basic, yakaderera-kumhanya kutaurirana pasina kwakaoma kuseta. Izvo hardware uye software zvinodiwa zvishoma, zvichiita kuti zvive nyore kushandisa uye kushandisa.
Noise Resistance: RS232 inoshanda nehupamhi voltage renji (-3V kusvika -15V kune zvine musoro "1" uye +3V kusvika +15V kune zvine musoro "0"), iyo inopa buffer kurwisa kuderedzwa kwechiratidzo uye kukanganisa. Iyi ficha inonyanya kubatsira munzvimbo dzeindasitiri umo ruzha runowanzo. Iyi ficha inonyanya kubatsira mune mapiritsi ekugadzira pasi, uko kune ruzha.
Kuvimbika: kushandiswa kwenguva refu kweRS232 mumasisitimu enhaka kunoratidza kusimba kwayo uye kuvimbika. Iyo inotaridzirwa zvakanyanya seyakagadzikana uye inofanotaurwa, ine mishoma yekukanganisa mitengo, ichiita kuti ive yakakodzera kumidziyo yakafanana malaptop echiuto ari kutengeswa uko kutendeseka kwedata kwakakosha.
Mutengo-Unoshanda: RS232-inoenderana midziyo uye tambo zvinogara zvisingadhure uye zvinowanikwa zvakanyanya. Izvi zvinodhura-zvinoita kuti RS232 ive sarudzo inoshanda yezvikumbiro zvisingade mareti e data akakwira kana madaro marefu.
Kukurukurirana kwePoint-to-Point: RS232's point-to-point yekubatanidza inobvumira kutaurirana kwakatsaurirwa pakati pezvishandiso zviviri, izvo zvinogona kuderedza kuoma kwetiweki uye zvingangoita kudhumhana kwedata kunowanikwa mumatanho emidziyo yakawanda.
Kuganhurirwa kweRS232 Ports
Low Data Rate: RS232's maximum data rate inosvika 115.2 kbps, iyo inononoka zvakanyanya pane yemazuva ano zviyero se USB (kusvika 20 Gbps) uye Ethernet (10 Gbps kana kupfuura). Iyi yakaderera data reti inoganhura kukodzera kweRS232 kune zvikumbiro zvinoda kumhanyisa data data, senge. industrial pc ine gpu.
Yakaganhurirwa Distance: RS232 inoganhurirwa kumamita gumi nemashanu pasi pemamiriro akanaka, zvichiita kuti isakodzere kutaurirana kureba. Ichi chinomanikidza chinodzikamisa kushandiswa kwayo mumasisitimu makuru kana akaparadzirwa zvakanyanya, senge advantech rackmount pc installations.
Single Device Kukurukurirana: RS232 inotsigira point-to-point kutaurirana chete, zvichireva kuti inogona kubatanidza michina miviri chete. Kusiyana neRS485, iyo inobvumira akawanda madivayiri pamutsetse mumwe chete, RS232 haina kunaka kune maapplication anoda kuwanda-kudonhedza kana kutaurirana netiweki, senge ayo anosanganisira. 2u maindasitiri pc.
Bulky Connectors: RS232 inowanzo shandisa DB9 kana DB25 zvibatanidza, izvo zvakakura uye zvishoma zviri nyore zvichienzaniswa nekombuta USB neEthernet zvibatanidza. Izvi zvinogona kuita kuti RS232 inonetsa kushandisa mune compact, nzvimbo-inogumira zvishandiso, senge lunchbox pc setups.
Simba Rinodiwa: RS232 inoshaya kugona kuendesa simba pamusoro peiyo data mutsara, kusiyana ne USB, iyo inogona kuita magetsi akabatana. Uku kudzikisira kunoda imwe sosi yemagetsi, ichiwedzera kuomarara mumamiriro ezvinhu apo kuendesa magetsi pamusoro petambo yekutaurirana kungave kwakanakira industrial panel pc odm zvishandiso.
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