Nga Tohutohu Whakawhiti Pahi
Ko te 485 he momo pahi rangatū e whakamahia nuitia ana i roto i te whakawhitiwhiti korero ahumahi.Ko te whakawhitiwhiti 485 anake e hiahia ana kia rua nga waea (raina A, raina B), ka tūtohuhia te whakawhiti tawhiti ki te whakamahi i te takirua whiri kua parea.Ko te tikanga, ko te tawhiti nui o te tuku 485 he 4000 putu me te reiti tuku teitei ko 10Mb/s.Ko te roa o te takirua takahuri taurite he taurite ki te tere tuku, kei raro iho i te 100kb/s kia eke ki te tawhiti o te tuku.Ko te tere tere o te tuku ka taea anake te whakatutuki i nga tawhiti poto.Ko te tikanga, ko te 1Mb/s anake te reiti tuku i runga i te waea takirua whiria 100 mita.
Mo nga hua korero 485, ko te tawhiti o te whakawhiti ka whakawhirinaki ki te raina tuku i whakamahia, ko te pai ake o te taarua marumaru, ko te tawhiti atu te tawhiti o te tuku.
Kotahi noa te rangatira i roto i te pahi 485, engari he maha nga taputapu pononga e whakaaetia ana. Ka taea e te rangatira te korero ki tetahi pononga, engari kaore e taea te korero i waenga i nga pononga.Ko te tawhiti o te whakawhitinga korero kei raro i te paerewa 485, e pa ana ki nga taputapu waea korero i whakamahia, te taiao ara korero, te tere o te whakawhitiwhiti korero (te reiti baud) me te maha o nga taurekareka e hono ana.I te wa e tawhiti ana te tawhiti o te whakawhitiwhiti korero, ka hiahiatia he aukati 120-ohm hei whakapai ake i te kounga o te korero me te pumau. Ko te aukati o te 120 ohm te nuinga o te waa e hono ana i te timatanga me te mutunga.
Ko nga tikanga hono o te kaikawe pahi me te rūnanga whakahaere pahi e whai ake nei:
Whakaahua 1: Ko te hononga whakawhiti pahi te tikanga hononga rūnanga whakahaere pahi
Pūoko: ko te hau paitini he hiko, ko te hau ngiha he ngingiha whakakorikori, ko te waro waikura he infrared
Wā whakautu: ≤40s
Aratau mahi: mahi tonu
Ngaohiko mahi: DC24V
Aratau Putanga: RS485
Awhe pāmahana: -20 ℃ ~ 50 ℃
Awhe haumākū: 10 ~ 95% RH [kare he tōhau]
Tiwhikete pahū-kore no.: CE15.1202
Tohu pahū: Exd II CT6
Tāutatanga: whakairihia ki te pakitara (note: tirohia te tuhi whakauru)
Te ahua o te ahua: ka mau te anga whakawhiti i te anga konumohe mate-maka i hangaia me te hanganga mura, ko te hoahoa haehae o te uhi o runga he pai ki te kati i te anga, ko te mua o te pukoro kua hangaia me te hanganga whakararo hei whakarite i te whakapiri pai i waenga i te puoro. me te hau, me te kokoru ka tango i te hononga parewai pahū-kore.
Nga rahi o waho: 150mm×190mm×75mm
Taumaha: ≤1.5kg
Ripanga1:Tawhā hau whānui
| hau | ingoa hau | Taupū Hangarau | ||
| Awhe ine | Whakatau | Tohu whakaoho | ||
| CO | waro haukura | 0-1000pm | 1ppm | 50ppm |
| H2S | Hauwai sulfide | 0-100ppm | 1ppm | 10ppm |
| EX | hau mura | 0-100%LEL | 1%LEL | 25%LEL |
| O2 | hāora | 0-30%vol | 0.1%vol | Iti 18%vol Teitei 23%vol |
| H2 | hauwai | 0-1000pm | 1ppm | 35ppm |
| CL2 | māotao | 0-20ppm | 1ppm | 2ppm |
| NO | waikura hauota | 0-250pm | 1ppm | 35ppm |
| SO2 | Te whanariki hauhā | 0-100ppm | 1ppm | 5ppm |
| O3 | Ozone | 0-50ppm | 1ppm | 2ppm |
| NO2 | hauota hauhā | 0-20ppm | 1ppm | 5ppm |
| NH3 | Hamoni | 0-200ppm | 1ppm | 35ppm |
| CO2 | hauhā | 0-5%vol | 0.01%vol | 0.20%vol |
Tuhipoka: ko te ripanga 1 i runga ake nei ko nga tawhā hau noa.Tena koa whakapā atu ki te kaihanga mo nga whakaritenga hau me te awhe motuhake.
Ko te punaha tuku pahi he punaha tirotiro whatunga (hau) e whakauru ana i te kaiwhakawhiti hau me te tuku tohu 485, ka kitea tika, ka whakahaeretia e te rorohiko manaaki PC, rūnanga whakahaere ranei.Ma te whakaputanga rei, ka kati te rei i te wa e noho ana te kukū hau ki te awhe whakaoho.Ko te punaha whakawhiti pahi i hangaia i runga i nga whakaritenga hoahoa o te whatunga pahi 485, a ka whakamahia ki te whakawhitiwhiti korero whatunga pahi 485 paerewa.
Whakaatu 2: Hoahoa o roto o te kaiwhakawhiti
Ko te whakaritenga waea mo te punaha whakawhiti pahi he rite ki tera o te pahi 485 paerewa.Heoi, ka whakauru ano hoki i etahi ahuatanga i hangaia e ia ake, penei:
1. Kua whakauruhia a roto me te 120 ohm offset resistance, i tohua ma te whakawhiti.
2. I te nuinga o te waa, ko te kino o etahi pona ka kore e pa ki te mahi noa o te kaikawe pahi.Heoi, me tohu mena ka tino pakaru nga waahanga matua kei roto i te node, ka pararutiki te katoa o te kaikawe pahi.Tena koa whakapā atu ki te kaiwhakanao mo nga otinga motuhake.
3. He ahua pumau te mahi a te punaha, tautoko i nga haora 24 o te mahi tonu.
4. Ko te nui rawa o te tahua ariā he 255 node.
Tuhipoka: kaore te raina tohu e tautoko i te mono wera.E taunaki ana kia whakamahia: hono tuatahi te raina tohu pahi 485, katahi ka whakakaha te node ki te mahi.
Tikanga whakapuru i runga i te pakitara: tuhia he kohao whakapuru ki runga i te pakitara, whakamahia nga pou roha 8mm×100mm, whakatikahia nga pou roha ki runga i te pakitara, whakaurua te kaiwhakawhiti, katahi ka whakatika ki te nati, te papa rapa me te papa papatahi, pera i te ahua 3.
I muri i te whakatika o te kaitahuri, tangohia te taupoki o runga ka whakauru i te taura mai i te kokoru.Tirohia te hoahoa hanga mo nga pito hononga me te polarity pai me te kino (Ex momo hononga), ka raka i te hononga parewai, whakamauhia te uhi o runga i muri i te tirotiro.
Kia mahara: me heke iho te pūoko ina whakauruhia
Whakaahua 3: Nga rahi o waho me te mapi moka kohao o te kaiwhakawhiti
1. E rua nga taura e taunaki ana mo te taura hiko me te tohu.E WHAKAMAHI ana te raina hiko i te PVVP, a me tango e te raina tohu te taarua takai kua whakaaetia e te ao (RVSP takirua takirua).Ko te whakamahi i nga waea takirua kua marumaru ka awhina ki te whakaiti me te whakakore i te kaha tohatoha i hangaia i waenga i nga raina korero 485 e rua me te pokanoa aratau noa i hangaia huri noa i nga raina korero.He rereke te tawhiti o te tuku 485 i runga i te waea kua tohua, me te nuinga o te waa kaore e eke ki te tawhiti o te tuku morahi.E taunaki ana kia kaua e whakamahi i te taura matua 4, te hiko me te tohu ma te whakamahi i te taura kotahi.Ko te ahua 4 te raina tohu, ko te ahua 5 te raina hiko.
Whakaatu 4: Raina Tohu
Whakaahua 5: Raina hiko
2. Whakawhiti waea i roto i te hanga ki te karo i te takanga o te koropiko, ara, te hanganga o te maha - koropiko pōkai.
3. I te wa e wehea ai te hanga i roto i te ngongo, kia matara rawa atu i te waea ngaohiko teitei, kia kore ai e tata ki te hiko kaha, nga tohu tohu kaha.
485 pahi ki te whakamahi i te hanganga-a-ringa-a-ringa, ka tino whakakorehia te hononga whetu me te hononga bifurcation.Ko te hononga whetu me te hononga rua ka puta te tohu whakaata, na reira ka pa ki te whakawhitiwhiti 485.Ka hono te whakangungu rakau ki te whare tuku.Kei te ahua 6 te hoahoa raina.
Whakaatu 6: Tutohi rarangi taipitopito
Ko te hoahoa waea tika e whakaatuhia ana i te ahua 7, ko te hoahoa waea he kei te ahua 8.
Whakaahua 7: He hoahoa waea tika
Whakaahua 8: He hoahoa waea he
Mena he roa rawa te tawhiti, ka hiahiatia he kaitahuri, ka whakaatuhia te tikanga hononga tukurua i te ahua 9. Kaore i te whakaatuhia te waea hiko.
Whakaatu 9: Tikanga hononga tukurua
4. Ka oti te waea waea, honoa nga wahanga o nga kaiwhakawhiti i te tuatahi, tapahia te aho hiko me te raina tohu, ka mutu te hononga ki te kaiwhakawhiti, penei i te ahua 2. Whakamahia te mita maha hei whakamatautau mena he ara iahiko poto kei waenganui i nga tohu. me nga raina hiko.Ko te uara parenga i waenga i te raina tohu A me B he 50-70 ohms.Tena koa tirohia mena ka taea e te kaihautu te korero ki ia kaiwhakawhiti ka hono atu i nga toenga mo te whakamatautau.Tautuhia te pana whakawhiti whakamutunga e hono ana i tenei wa, Ko etahi atu pana whakawhiti kua whakaritea ki te 1.
Tuhipoka: Ko te mutunga mo te hononga waea pahi anake.Ko etahi atu tikanga hononga waea kaore e whakaaetia.
Mena he maha nga waahanga tuku me te tawhiti tawhiti, me aro mai ki raro:
Mena ka kore e whiwhi raraunga nga pona katoa, a ka kore e mahi te rama tohu i roto i te kaiwhakawhiti, e tohu ana kaore e taea e te hiko hiko te whakarato i te nui o naianei, ka hiahiatia tetahi atu hiko whakawhiti, na reira ka tūtohu kia whakamahia he hiko hiko teitei. .I te tuunga i waenganui i nga hiko whakawhiti e rua, momotuhia te 24V+, 24V- hono ki te karo i te pokanoa i waenga i te tuku hiko whakawhiti e rua.
B.Mehemea he kino te mate o te node, na te mea he tawhiti rawa te tawhiti o te whakawhitiwhiti korero, kaore i te pumau nga raraunga pahi, me whakamahi te tukurua ki te whakawhānui i te tawhiti korero.
5. Ko te kaikawe waea pahi he kotahi noa te relay hāngū tuwhera noa. Ina neke ake te kuhanga hau i te tohu whakaoho kua katia te reera, kei raro iho i te tohu whakaoho, ka momotu te reera me hanga waea te kaiwhakamahi kia rite ki nga whakaritenga.Mena kei te pirangi koe ki te whakahaere i te powhiriwhiri, i etahi atu taputapu o waho ranei, honoa nga taputapu o waho me te atanga relay i roto i nga raupapa ki te tuku hiko tika (penei i te ahua 10 te hoahoa waea o te relay)
Fwhakaahua 10 te hoahoa waea o te rei
RS485 te punaha whakawhiti pahi e pa ana ki nga raru me nga otinga
1. Karekau he raraunga i etahi o nga pito: i te nuinga o te wa kare te pona e whakakahahia na runga i etahi take o waho, ko te huarahi ki te tirotiro mena kei te kanapa te rama tohu i runga i te papa taiawhio.Ki te kore te rama tohu e ka ana, ka taea te whakakii ano te node. wehe ke.
2. Ka whiti noa te rama tohu, engari kaore he raraunga.He mea tika kia tirohia mena he hono noa nga waea A me te B me te hono whakamuri ranei. Momotuhia te hiko o tenei node katahi ka mono ano i te taura raraunga kia kite mena ka taea e koe te tiki i tenei raraunga node. He korero motuhake: kaua e hono te taura hiko ki te tauranga taura raraunga, ka tino kino te taputapu RS485.
3. Kei te hiahiatia te hononga tauranga.Mena he roa rawa te waea pahi 485 (neke atu i te 100 mita), e taunaki ana kia mahia he hononga mutunga. Ko te nuinga o te waa ka hiahiatia te hononga mutunga i te mutunga o te RS485, penei i te ahua 2. Mena he roa rawa te waea pahi, ko te tukurua. Ka taea te whakamahi hononga ki te whakaroa i te tawhiti tuku.(Tuhipoka: Ki te whakamahia te tukurua RS485, karekau he hiahia mo te hononga tauranga ki te tukurua ka oti te whakaurunga o roto.
4. Haunga nga raruraru o runga ake nei, mena ka whiti noa te rama tohu (1 rama mo ia hekona) ka kore te korero, ka taea te whakatau kua pakaru te pona (mehemea he mea noa te korero o te raina). ka whakarite kei te pai nga raina hiko me te whakawhitiwhiti korero, katahi ka toro atu ki nga tautoko hangarau e tika ana.
Ko te wa whakamana mo te taputapu whakamatautau hau i hangaia e ta maatau kamupene he 12 marama, ka timata mai i te ra o te tukunga. te kino, kaore i te hipoki i roto i te raihana.
Tena koa panuihia nga tohutohu i mua i te whakamahi i te taputapu.
Ko te mahi o te taputapu me whai i nga ture kua tohua i roto i nga tohutohu.
Ko te tiaki i nga taputapu me te whakakapi i nga waahanga ka whakahaerehia e ta maatau kamupene, i nga teihana tiaki rohe ranei.
Mena kaore te kaiwhakamahi e whai i nga tohutohu i runga ake nei, tiimata, whakakapi ranei i nga waahanga, ko te pono o te taputapu ma te kaiwhakahaere.
Ko te whakamahinga o te taputapu me whai ano ki nga ture me nga ture a nga mana whakahaere o te kaainga me te whakahaere taputapu i roto i te wheketere.
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