Bhazi transmitter Mirayiridzo
485 imhando ye serial bhazi iro rinoshandiswa zvakanyanya mukutaurirana kwemaindasitiri.485 kutaurirana kunongoda waya mbiri (mutsetse A, mutsetse B), kureba kwekufambisa kunokurudzirwa kushandisa shielded twisted pair.Tichifunga, kureba kwekutapurirana kure kwe485 i4000 tsoka uye iyo yakanyanya kutapurirana mwero i10Mb/s.Kureba kweiyo yakaenzana yakamonyoroka peya inopesana nechiyero chekutapurirana, chiri pasi pe100kb/s kuti isvike kureba kwekufambisa.Mwero wepamusoro wekutapurirana unogona kuwanikwa chete panhambwe pfupi.Kazhinji, mwero wekutapurirana wepamusoro unowanikwa pawaya yakamonyoroka yemamita zana ingori 1Mb/s.
Kune 485 zvigadzirwa zvekutaurirana, kureba kwekufambisa kunonyanya kuenderana netambo yekufambisa inoshandiswa, kazhinji zviri nani iyo yakadzivirirwa yakamonyoroka peya, kure kure kureba kwekufambisa kunenge kuri.
Pane tenzi mumwe chete mubhazi re485, asi michina yakawanda yevaranda inobvumirwa.Tenzi anogona kutaurirana nemuranda chero upi zvake, asi haagoni kutaurirana pakati pevaranda.Nharaunda yekukurukurirana inoiswa pasi pe485 chiyero, icho chine hukama newaya yekutaurirana yakashandiswa, nzira yekutaurirana nharaunda, chiyero chekukurukurirana (baud rate) uye huwandu hwevaranda vakabatana.Kana kureba kwekutaurirana kuri kure, 120-ohm terminal resistance inodiwa kuti uvandudze hutano hwekukurukurirana uye kugadzikana.Kupikisa kwe120 ohms kunowanzobatanidzwa pakutanga nekuguma.
Nzira dzakabatana dzechifambiso chebhazi uye bhazi rekutonga kabati ndeaya anotevera:
Mufananidzo 1: Bhazi transmitter yekubatanidza bhazi kutonga kabati yekubatanidza nzira
Sensor: gasi rine muchetura is electrochemical, gasi rinopisa rinopisa rinopisa, kabhoni dhaibhoni iri infrared.
Nguva yekupindura: ≤40s
Kushanda mode: kuenderera mberi basa
Kushanda magetsi: DC24V
Kubuda mode: RS485
Tembiricha renji: -20 ℃ ~ 50 ℃
Humidity renji: 10 ~ 95% RH [hapana condensation]
Chitupa chekuputika-chisina.: CE15.1202
Kuputika-chiratidzo chiratidzo: Exd II CT6
Kuiswa: kumadziro-akaiswa (chinyorwa: tarisa kudhirowa yekuisa)
Chimiro chechimiro: iyo transmitter shell inotora iyo die-cast aluminium shell yakagadzirwa ine flameproof dhizaini, iyo groove dhizaini yevhavha yepamusoro inobatsira kukiya ganda, kumberi kwe sensor kwakagadzirwa neinodzika dhizaini kuti ive nechokwadi chekubatana kwakanyanya pakati pe sensor. uye gasi, uye chinopinda chinotora chinoputika-chisingapindi mvura.
Zviyero zvekunze: 150mm×190mm×75mm
Kurema: ≤1.5kg
Tafura1: General gasi parameter
| Gasi | Zita regesi | Indekisi yehunyanzvi | ||
| Chiyero chiyero | Resolution | Alarm point | ||
| CO | Carbon monoxide | 0-1000pm | 1ppm | 50ppm |
| H2S | Hydrogen sulfide | 0-100ppm | 1ppm | 10ppm |
| EX | Gasi rinopisa | 0-100% LEL | 1%LEL | 25%LEL |
| O2 | Okisijeni | 0-30%vol | 0.1%vol | Low 18%vol High 23%vol |
| H2 | Hydrogen | 0-1000pm | 1ppm | 35ppm |
| CL2 | Chlorine | 0-20ppm | 1ppm | 2ppm |
| NO | Nitric oxide | 0-250pm | 1ppm | 35ppm |
| SO2 | Sulfur dioxide | 0-100ppm | 1ppm | 5ppm |
| O3 | ozoni | 0-50ppm | 1ppm | 2ppm |
| NO2 | Nitrogen dioxide | 0-20ppm | 1ppm | 5ppm |
| NH3 | Ammonia | 0-200ppm | 1ppm | 35ppm |
| CO2 | Carbon dioxide | 0-5%vol | 0.01%vol | 0.20%vol |
Ongorora: iyo tafura yepamusoro 1 ndiyo chete yakajairika gasi paramita.Ndapota taura nemugadziri kune yakakosha gasi uye siyana zvinodiwa.
Bhazi transmitter system inetiweki (gasi) yekutarisa sisitimu inosanganisa gasi transmitter uye 485 chiratidzo chekufambisa uye inoonekwa uye inodzorwa nePC host komputa kana control cabinet.Nekubuditswa kwerelay, relay inovhara kana gasi rekuisa riri mu alarm range.Iyo bhazi transmitter system yakagadzirirwa zvinoenderana nedhizaini ye485 bhazi network, uye inoshandiswa kune yakajairwa 485 bhazi network network.
Mufananidzo 2: Dhiagiramu yemukati yekutumira
Iyo wiring inodiwa yebhazi transmitter system yakafanana neyeiyo standard 485 bhazi.Nekudaro, inobatanidzawo zvimwe zvinozvigadzira, senge:
1. Internal yakabatanidzwa ne 120 ohm offset resistance, yakasarudzwa nekuchinja.
2. Kazhinji, kukuvadzwa kune dzimwe node hakuzokanganisa mashandiro akajairika emutakuri webhazi.Nekudaro, zvinofanirwa kutaurwa kuti kana zvikamu zvikuru mukati menode zvakakuvadzwa zvakanyanya, iyo yese bhazi inofambisa inogona kuoma mitezo.Uye Ndokumbira ubate mugadziri kune chaiwo mhinduro.
3. Basa rehurongwa rakagadzikana, rinotsigira maawa makumi maviri nemana ekuenderera mberi kwebasa.
4. Iyo yakawanda theoretical allowance ndeye 255 nodes.
Cherechedza: mutsara wechiratidzo hautsigiri plug inopisa.Inokurudzirwa kushandiswa: tanga wabatanidza 485 bhazi chiratidzo mutsara, wozopa simba node kushanda.
Nzira yekuisa madziro: dhirowa maburi pamadziro, shandisa 8mm × 100mm mabhaudhi ekuwedzera, gadzirisa mabhaudhi ekuwedzera pamadziro, isa transmitter, wozoigadzirisa nenati, elastic pad uye flat pad, sezvakaratidzwa mumufananidzo 3.
Mushure mekunge iyo transmitter yagadziriswa, bvisa chivharo chepamusoro uye suma tambo kubva pakupinda.Ona dhiyagiramu yemagadzirirwo ezviteshi zvekubatanidza zvine positive uye negative polarity (Ex type connection), wozokiya mubatanidzwa usingapindi mvura, simbisa chivharo chepamusoro mushure mekutarisa.
Cherechedza: sensor inofanira kunge iri pasi kana yaiswa
Mufananidzo 3: Zviyero zvekunze uye inokwirisa gomba bitmap yetransmitter
1. Tambo mbiri dzinokurudzirwa kune tambo yemagetsi uye chiratidzo.Iyo tambo yemagetsi USES PVVP, uye mutsara wechiratidzo unofanirwa kutora iyo inogamuchirwa pasi rose shielded twisted pair (RVSP twisted pair).Kushandiswa kweakavharidzirwa akamonyoroka waya kunobatsira kuderedza uye kubvisa iyo yakagoverwa capacitance inogadzirwa pakati pemitsara miviri ye485 yekutaurirana uye kupindira kwakajairwa kwakagadzirwa kwakatenderedza mitsara yekutaurirana.485 kureba kwekufambisa kwakasiyana zvichienderana newaya yakasarudzwa, uye kazhinji haisviki padanho repamusoro rekutapurirana.Inokurudzirwa kusashandisa 4 core cable, simba uye chiratidzo uchishandisa iyo imwechete tambo.Mufananidzo 4 ndiyo mutsara wechiratidzo, uye nhamba yechishanu ndiyo tambo yemagetsi.
Mufananidzo 4: Mutsara Wechiratidzo
Mufananidzo 5: Mutsara wemagetsi
2. Transmission wire mukuvaka kudzivisa kuitika kwechiuno, kureva, kuumbwa kwe-multi-loop coil.
3. Apo kuvakwa kunofanira kuparadzaniswa kuburikidza nechubhu, sezvinobvira kure nepamusoro-soro waya, kudzivisa pedyo nemagetsi ane simba, zviratidzo zvakasimba zvemagineti.
485 bhazi rekushandisa ruoko-mu-ruoko chimiro, zvakatsiga kubvisa nyeredzi kubatana uye bifurcation yekubatanidza.Iyo nyeredzi yekubatanidza uye bifurcated yekubatanidza inoburitsa chiratidzo chekuratidzira, nekudaro ichikanganisa kutaurirana kwe485.Iyo shield yakabatana kune transmitter imba.Mutsara dhayagiramu inoratidzwa mumufananidzo 6.
Mufananidzo 6: Detailed line chart
Iyo chaiyo wiring dhayagiramu inoratidzwa mumufananidzo 7 uye isiriyo wiring dhayagiramu inoratidzwa mumufananidzo 8.
Mufananidzo 7: Yakarurama wiring diagram
Mufananidzo 8: Dhiyagiramu yewaya isina kunaka
Kana kureba kwakareba, kudzokorora kunodiwa, uye nzira yekubatanidza inodzokorora inoratidzwa mumufananidzo 9. Simba rekupa wiring harina kuratidzwa.
Mufananidzo 9: Repeater yekubatanidza nzira
4. Mushure mekunge wiring yapera, batanidza zvikamu zvezvinotumira kutanga, cheka tambo yemagetsi uye mutsara wechiratidzo, uye ita kuguma kwekubatanidza kune transmitter, sezvinoratidzwa mumufananidzo 2. Shandisa multimeter kuti uone kana pane pfupi pfupi pakati pezviratidzo. uye mitsara yemagetsi.Kupikisa kukosha pakati pechiratidzo mutsara A uye B inenge 50-70 ohms.Ndokumbira utarise kuti mugamuchiri anogona here kutaurirana nematransmitter ega ega obva abatanidza mamwe ese kuti ayedze.Seta yekupedzisira transmitter switch parizvino yakabatana pairi, Imwe transmitter switch yakaiswa ku1.
Ongorora: iyo yekupedzisira kumisa ndeye chete bhazi waya yekubatanidza.Imwe nzira yekubatanidza waya haitenderwe.
Kana paine akawanda zvidimbu zvevatambi uye kure kure, ndapota teerera pazasi:
Kana node dzese dzatadza kugashira data, uye mwenje wechiratidzo mune inotapurirana ukasashanda, inoratidza kuti magetsi haagone kupa yakakwana ikozvino, uye imwe switching magetsi inodiwa, saka zvinokurudzirwa kushandisa yakakwirira-simba magetsi. .Panzvimbo pakati pemagetsi maviri ekuchinja magetsi, bvisa 24V+, 24V- yakabatana kuti udzivise kukanganisa pakati pemagetsi maviri ekushandura magetsi.
B.Kana iyo node kurasikirwa kwakakomba, imhaka yekuti kureba kwekutaurirana kuri kure, data yebhasi haina kugadzikana, inoda kushandisa inodzokorora kuti iwedzere kureba kwekutaurirana.
5. Iyo bhazi waya inotumira ine imwe chete yakajairika yakavhurika passive relay.Kana gasi rekuisa rakapfuura preset alarm point iyo relay inovharwa, pazasi pearamu point, iyo relay ichabvisa mushandisi ichaita wiring zvinoenderana nezvinodiwa.Kana iwe uchida kudzora feni kana zvimwe zvekunze zvekushandisa, ndapota batanidza iyo yekunze midziyo uye relay interface munhevedzano kune yakakodzera magetsi magetsi (sezvinoratidzwa mumufananidzo 10 iyo wiring diagiramu yeiyo relay)
Figure 10 iyo wiring diagram ye relay
RS485 bhazi transmitter system ine chekuita nematambudziko uye mhinduro
1. Mamwe materminals haana data: kazhinji node haina kusimba nekuda kwechimwe chikonzero chekunze, nzira ndeyekutarisa kana chiratidzo chechiedza pabhodhi redunhu chiri kupenya.Kana chiratidzo chemwenje chisipo, iyo node inogona kubhadharwa. zvakasiyana.
2. Chiedza chechiratidzo chinopenya kazhinji, asi hapana data.Izvo zvinodiwa kuti utarise kana waya A neB akabatana zvakajairika uye kana akabatana mune reverse.Dhimbura simba rekupa iyi node wobva waisa tambo yedata zvakare kuti uone kana iwe uchigona kuwana iyi node data.Special note: usabatana tambo yemagetsi kune data cable port, ichakuvadza zvakanyanya mudziyo weRS485.
3. Terminal connection inodiwa.Kana 485 bhasi wiring yakarebesa (kupfuura 100 metres), inokurudzirwa kuita magumo kubatana.Kubatana kwekupedzisira kunowanzo kudiwa pakupera kweRS485, sezvakaratidzwa mumufananidzo 2.Kana iyo wiring yebhazi yakarebesa, iyo inodzokorora kubatana kunogona kushandiswa kuwedzera kureba kwekutapurirana. (chinyorwa: Kana RS485 inodzokorora ichishandiswa, hapana chikonzero chekubatanidza terminal pane inodzokorora uye kubatanidzwa kwemukati kwapera.
4. Kunze kwezvinetso zviri pamusoro apa, kana chiedza chechiedza chinopenya kazhinji (1 flash pasekondi) uye kukurukurirana kunokundikana, node inogona kutongwa yakakuvadzwa (inopa mutsara wekukurukurirana kwakajairika) Kana nhamba huru ye node isingagoni kutaurirana, tapota kutanga inoita shuwa kuti simba uye mitsara yekutaurirana zvakanaka, uye wobva wabvunza kwakakodzera rubatsiro rwehunyanzvi.
Nguva yewaranti yechishandiso chekuongorora gasi chakagadzirwa nekambani yedu mwedzi gumi nemiviri, iyo inotanga kubva pazuva rekutumira.Mukushandiswa kwekushandiswa, mushandisi anofanira kutevedzera mirairo yekushanda, nekuda kwekushandisa zvisina kunaka, kana mamiriro ekushanda akakonzera chiridzwa. kukanganisa, haina kuvharwa muwaranti.
Ndapota verenga mirayiridzo zvakanyatsonaka usati washandisa chiridzwa.
Kushanda kwechiridzwa kunofanira kutevera mitemo inotsanangurwa mumirairo.
Kugadziriswa kwezviridzwa uye kutsiviwa kwezvikamu kuchabatwa nekambani yedu kana zviteshi zvekuchengetedza zvemuno.
Kana mushandisi asingateveri mirairo iri pamusoro, tanga kana kutsiva zvikamu, kuvimbika kwechiridzwa kunofanirwa kunge kuri basa remushandisi.
Kushandiswa kwechiridzwa kunoenderana nemirairo nemitemo yezviremera zvemumba zvine chekuita uye manejimendi emidziyo mufekitori.
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