[AIPU-WATON] Ni irihe tandukaniro riri hagati ya RS232 na RS485?

Porotokole y'itumanaho ikurikirana igira uruhare runini muguhuza ibikoresho no gufasha guhanahana amakuru. Ibipimo bibiri bikoreshwa cyane niRS232naRS485. Reka tumenye itandukaniro ryabo.

· RS232Porotokole

UwitekaRS232Imigaragarire (izwi kandi nka TIA / EIA-232) yagenewe kugenzura itumanaho rikurikirana. Yorohereza amakuru gutembera hagati yamakuru ya Terminal (DTE), nka terefone cyangwa imiyoboro, hamwe nibikoresho byitumanaho (DCE). Dore ingingo zimwe zingenzi kuri RS232:

1. Uburyo bwo gukora:

   • RS232ishyigikira byombibyuzuyenaigice cya kabiriuburyo.
   • Muburyo bwuzuye-duplex, amakuru arashobora koherezwa no kwakirwa icyarimwe ukoresheje insinga zitandukanye zo kohereza no kwakira.
   • Muri kimwe cya kabiri-duplex, umurongo umwe ukora byombi byohereza no kwakira imirimo, byemerera kimwe icyarimwe.

2. Intera y'itumanaho:

   • RS232 irakwiriyeintera ngufikubera imbogamizi mubimenyetso byimbaraga.
   • Intera ndende irashobora kuvamo ibimenyetso bitesha agaciro.

3. Urwego rwa voltage:

   • RS232 ikoreshaurwego rwiza kandi rutari rwizakubimenyetso.

4. Umubare w'itumanaho:

   • Umugozi wa RS232 mubisanzwe ugizweIntsinga 9, nubwo abahuza bamwe bashobora gukoresha insinga 25.

· Porotokole ya RS485

UwitekaRS485 or EIA-485protocole yemewe cyane mubikorwa byinganda. Itanga inyungu nyinshi kurenza RS232:

1. Topi-Ingingo Topologiya:

   • RS485ikwakira byinshi no koherezaguhuzwa kuri bisi imwe.
   • Kohereza amakuru bikoreshaibimenyetso bitandukanyekubwo gushikama.

2. Uburyo bwo gukora:

   • RS485Imigaragarire hamweGuhuza 2ikoreigice cya kabiri, kohereza gusa cyangwa kwakira amakuru mugihe runaka.
   • RS485Imigaragarire hamweGuhuza 4irashobora kwinjirauburyo bwuzuye, gushoboza icyarimwe kwanduza no kwakira.

3. Intera y'itumanaho:

   • RS485indashyikirwa muriitumanaho rirerire.
   • Nibyiza kubisabwa aho ibikoresho bikwirakwizwa intera igaragara.

4. Urwego rwa voltage:

   • RS485ikoreshaibimenyetso bya voltage itandukanye, kongera ubudahangarwa bw'urusaku.

Muncamake, RS232 iroroshye guhuza ibikoresho mumwanya muto, mugiheRS485yemerera ibikoresho byinshi kuri bisi imwe hejuru yintera nini.

Wibuke ko ibyambu bya RS232 bikunze kuba bisanzwe kuri PC nyinshi na PLC, mugiheRS485ibyambu birashobora gukenera kugurwa ukundi.