[Aipa-Waton] Kodi pali kusiyana kotani pakati pa RS232 ndi RS45?

Pulogalamu yolumikizirana yolumikizirana imachita mbali yolumikizana mu zolumikizira zida ndikuthandizira kusinthana kwa deta. Miyezo iwiri yogwiritsidwa ntchito kwambiriRs232ndiRS45. Tiyeni tisanthule munjira zawo.

· Rs232Plapulocol

ARs232mawonekedwe (omwe amadziwikanso kuti TIA / EIA-232) adapangidwa kuti azithana ndi kulumikizana kwachipembedzo. Imathandizira kuyenda kwa deta pakati pa zida zamagetsi (Dte), monga madera kapena zotumiza, ndi zida zolumikizana ndi data (DCE). Nazi mfundo zazikuluzikulu za Rs232:

1. Njira Yogwirira Ntchito:

   • Rs232amathandizira onsedreplexnditheka-duplexmitundu.
   • Munjira yonse ya Duplex, deta imatha kutumizidwa ndikulandila nthawi yomweyo pogwiritsa ntchito mawaya olekanitsidwa pofalitsa ndi phwando.
   • Mu theka-dupplex, mzere umodzi umakhala wonse ukutumiza uku kufalikira ndi kulandira ntchito, kulola kamodzi.

2. Kulankhulana moyankhulana:

   • RS232 ndi yoyeneramtunda waufupiChifukwa cha zoperewera pazithunzi.
   • Kutalitali kumatha kuwononga zikwangwani.

3. Malire:

   • Rs232 amagwiritsa ntchitoMitundu yabwino komanso yoyipaKwa zikwangwani.

4. Chiwerengero cha Olumikizana:

   • Chingwe cha RS232 chimakhala9 mawaya, ngakhale zolumikizira zina zitha kugwiritsa ntchito mawaya 25.

Protocol

ARS45 or Eia-485Protocol amakhazikitsidwa kwambiri m'mabuku ogulitsa mafakitale. Imapereka zabwino zambiri pa RS232:

1. Pulogalamu zambiri:

   • RS45amalolaOlandila angapo ndi otumizakulumikizidwa pa basi yomweyo.
   • Kutumiza kwa data kumathandizaMaineZosasinthika.

2. Njira Yogwirira Ntchito:

   • RS45mawonekedwe ndi2 kulumikizanagwira ntchitoMakina a theka, kutumiza kapena kulandira deta nthawi imodzi.
   • RS45mawonekedwe ndi4 Zolumikizanaamatha kuthamangamode-duplex, kupangitsa kufalikira kwakanthawi ndi phwando.

3. Kulankhulana moyankhulana:

   • RS45envelllKulankhulana Kwakutali.
   • Ndi bwino kugwiritsa ntchito komwe zida zimafalikira pamatalikidwe ofunikira.

4. Malire:

   • RS45amagwiritsa ntchitoMagetsi osiyanasiyana, kukulitsa matenda osachiritsika.

Mwachidule, RS232 ndi yosavuta yolumikizira zida zapafupi, pomweRS45Imalola zida zingapo pa basi yomweyo patali kwambiri.

Kumbukirani kuti madoko a RS232 amakhala okhazikika pama PC ambiri ndi ma plcs, pomweRS45Madoko angafunike kugulidwa payokha.