RS-485 (atanga converter): Ko te hoahoa me te whakamārama

RS-485 - ko te momo o te transducer whakamahia e te i roto i whatunga ahumahi. Kei te whakamahia hoki te reira i roto i te rārangi pārōnaki. Nuinga o ngā wā i reira he whakarerekē o te USB-tūhono. hanga te parau tumu o te mahi o te pūtau kei i runga i te whakawhitinga raraunga mā te tuku i te ngātere auau iti.

rerekē pūtahuri i waenganui i te tawhā tuatahi o te parenga putanga. kia hoki kia whanau te reira i roto i te ngakau e kua hanga nga tauira ki te rerekē auau raraunga. I roto i te tikanga ki te mahino i atu taipitopito i roto i a ratou, kia whakaaro koe te whakakē i te waea.

pūtahuri hononga Paerewa

Mua iahiko inverter hononga ngā te parenga whaiaro-ture me te expander. Ko te thyristor Ko tino noa whakamahia momo waea-ake. I roto i te tikanga ki te karo ngāwari o te whatunga, whakamahia papa paraharaha. I roto i ētahi wā, eke tuku hiko momo takirere ngongo. I roto i te katoa, ka taea e te mekameka e ki runga ki te rima ngā pūnga. I te toharite, te parenga ia putanga he iti iho i te 5.5 ohms. Ki te whakaaro tatou he atanga ahumahi RS-485 ki te wehe galvanic, i reira te whakamahia he extender pini.

Tauira i 100 moka ia hekona

RS-232 Converter / 485 atanga o tenei momo hono te anake mā te transceiver. I roto i tenei take, e kore e te roa mōrahi o tetahi wāhanga nui 1200 nm. I te toharite, he rite ki te 130 mA tawhā kohi nāianei. Ki te whakaaro tatou i te atanga pūtahuri Itarangi RS-485 kahore expanders, ka whakamahia e ia he tīwerawera moka.

hangaia Pūrere ki te hono i te mōrahi o e rima transceivers. I roto i tenei take, tei te kaha tohu i runga i te kaha puta o nāianei. RS-485 atanga taura whakarato he arorau-kore taumata 200 mV. Tei anake aau mahora Niniiraa i runga i te momo o te transceiver.

Pūrere 300 moka ia hekona

E hangaia whakarerekētanga o tenei momo, rite ki te tikanga, i runga i te tautoko o kore transceivers neke atu i rima. Hoki te hawhe-Matarua pūrere utu raraunga ko te pai hāngai. āhuatanga tūhono te nuinga i roto i te tīwerawera matua. I roto i te katoa, e kore te te mekameka whakamahia hoki neke atu i te toru ngā pūnga. I te toharite pūtahuri auau patua i kore neke atu i te 1 V ia teka'i. E whakamahia Expanders anake momo pini. Ki te whakaaro tatou nga RS-422/485 (te kaitahuri atanga) mo te taura pouwhanga, ka pā ia he ngongo takirere hiko. E kitea pokanoa i roto i taua iahiko rawa pinepine. Me mahara hoki käore te reira e te arorau kotahi taumata, i runga i toharite rite ki 150 mV.

Tauira 600 moka ia hekona

Kei te whakamahia Atanga converter RS-485 USB mo tenei momo o taura pouwhanga. Ko te roa wāhanga mōrahi i roto i tenei take, ko te rite ki te 1300 nm. Pūrere mō te tuku ahungarua o ngā raraunga pai uru. E kore e te tūtohutanga toharite o te pūtahuri Niniiraa nui 210 mV. Patua iho Auau ōrite e pā ana ki 1.2 ki microseconds.

kia hanga Hono whakarerekētanga i roto i te tīwerawera moka parenga iahiko ranei. Ki te whakaaro tatou te kōwhiringa tuatahi i roto i tenei āhuatanga e kore e taea te mahi i waho waea thyristor. He mea nui hoki ki te mōhio e te pūnga he tika ki te paraharaha anake. Ki te whakaaro tatou i te parenga USB atanga converter RS-485, ka whakamahia e te reira i te momo piha ngongo hiko. I roto i tenei take, te parenga ia putanga o te pūnaha fluctuates tawhio 4.6 ohms.

Tauira 10 transceivers

Pūtahuri 10 transceivers i te parenga ia tawhā putanga tiketike. whakaaro e tika ana o tenei momo te nuinga mo te tuku raraunga ahungarua. kohi o nāianei tawhā i runga i toharite rite ki te 230 mA. Ko te auau raraunga he iti iho i te 130 moka ia hekona. He pai mō ngā pūnaha aunoa tauira.

e kore e patua tohu auau i transducer nui 1.3 V i te microseconds. Tūtohutanga Niniiraa i roto i tenei take, ko te iti. Tika tūhono pūrere puta mā te momo iahiko te whakarite extender ranei. Ki te whakaaro tatou te whakatinanatanga tuatahi, i roto i tenei take, e kore e taea te mahi i waho transceiver hihiri. Hononga roto te expander te tikanga tino whakanui i te taumata o te kore arorau.

Kaupapa 13 transceivers

RS-232 Converter / 485 transceivers 13 hono i roto i te Ōseni. Ko te toharite tautuhinga kohi nāianei i runga i te pūrere ko 120 mA. Ki te whakaiti i te mōrea o te pokanoa tono trimmer. Kei te tikanga whakaturia Thyristors momo waea.

Tika Ōseni whakamahia ki te tīwerawera. Hoki te hawhe-Matarua kōrero, he pai hāngai taua pūtahuri. Ko te ātete putanga toharite kore ratou e nui ake 4.5 ohms. Tūtohutanga Niniiraa i roto i tenei take, ko te rite ki te kahore neke atu i 170 mV.

pūtahuri 50mA

RS-485 (atanga converter) 50 Ko pai anake hoki ngā pūnaha aunoa mA. whakaaro te āhuatanga motuhake o te tauira kei te ki hei tere tiketike whakawhitinga raraunga. Tika hono nga whakarerekētanga kawea i roto i roto i motuhake galvanic. I roto i tenei take, he kore nui ake i 150 mV te tūtohutanga o te Niniiraa. Logic taumata kore he rite ki te 230 mV. Ki te whakaaro tatou i te pūrere mo te kōrero ahungarua, kua whakamahia e ratou he momo he pini extender. I roto i te tahuri, he tika hihiri anake te transceiver.

Pūtahuri 120 mA

RS-485 (atanga converter) i 120 mA hono te mā transistors Matarua. Ki te whakaaro tatou i te putanga ki te pūnaha whakaatu, ka whai ratou i te transceiver hihiri. Hoki te hawhe-Matarua pūrere utu raraunga ko te pai hāngai. E te kaha ki te tūhono ki runga ki te tekau transceivers katoa. Ka rite ki te tikanga, he arorau kotahi taumata he iti iho i te 130 mV.

I roto i tenei take, te maha o taraiwa i runga i te mana o te tīwerawera matua. whakamahia extender te momo te nuinga hihiko. He rite ki te 1300 ns te roa mōrahi o tetahi wāhanga. pai hoki ngā pūrere o ngā pūnaha aunoatanga pai. tohu auau patua te nuinga e kore e nui ake 1.1 V ia teka'i.

momo pūrere hawhe-Matarua

RS-485 (atanga converter) ahei o te hawhe-Matarua-momo transistor hono mā Tapa. Ki te mahi i tenei, whakamahia te thyristor te ki te tīwerawera matua. pā Transceiver e rua momo hihiri me te mara. E kore e te parenga ia putanga o te ara iahiko nui 5.4 ohms. Ko te tohu o te kai o te toharite rite ki 130 mA nāianei. raraunga He whakaatu fariiraa i roto i tenei take e whakaratohia ana te paerewa.

e kore e tere whakawhiti kōnae nui 100 moka ia hekona. Ko te tūtohutanga o te Niniiraa i te taumata o 230 mV. He mea nui hoki ki te mōhio e taea e te hononga transducer mā podstrochenny extender. I roto i tenei take, te iahiko, ko te momo te whakarite e tika ana. Tika thyristor whakamahia ki whakawhiti tīwerawera. I roto i te katoa, i reira e toru pūnga iahiko.

whakarerekētanga pārōnaki

Ko te pārōnaki RS-485 (atanga converter) e whakamahia anake mo te pouwhanga taura. Tohu te raraunga fariiraa i roto i tenei take e whakaratohia ana te. pūtahuri Power roto yusb tauranga. E rave rahi te tautoko tauira "windose 7" ko XP. he rite ki kaua e nui ake 190 mA auau kohi nāianei. e kore te mea neke atu i te 90 mV He arorau kotahi taumata.

Hei hono whakamahia te taputapu kei te kore pūnga iahiko anake, engari parenga me te mara. Logic kore taumata, rite ki te tikanga, e kore e nui ake 120 mV. Ko te tere o te tohu i roto i tenei momo o te tauira he tiketike rawa. Auau tūtohutanga o te RS-485 Niniiraa converter atanga (RS-232) ko i te taumata o 170 mV. auau patua he iti iho i te 1.2 V ia teka'i.

Hononga roto extender whakahaere

Ki te whakaaro tatou te waea i roto i te tīwerawera whakahaere, he mea nui ki te mōhio e kore e nui ake te uara kohi nāianei 200 mA. I te timatanga o te mekameka ko te pouaka kāpeka. Kei te anake whakamahia te thyristor hoki o ngā pūnga i te tokorua. whakaratohia e rua Just pūnaha kawehiko te. Ko te transistor he pai momo waehere anake. I roto i tenei take, e kore e te taumata arorau kotahi nui 150 mV. e kore e tika amplifiers papare mō taua iahiko. e kore te mea neke atu i te ono transceivers kia hono ki te inverter katoa.

pūtahuri Takitahi-whānui me te expander

Me RS-485 atanga pūtahuri ki te expanders kotahi-mutu hoki taura pouwhanga. pūnaha Whakaatu te whiwhi raraunga i te tauira e wātea ana mo te momo ngōhiko. Ko iti iho i te 230 mA te kohi o nāianei toharite. whakaaro e tika ana anake hoki te hawhe-Matarua utu raraunga. e kore e auau whakawhiti raraunga nui 120 moka ia hekona.

He mea nui hoki ki te mōhio e te tauira e whakamahia ana ki te tiaki i te pūnaha i te ngaohiko tiketike. Tonu pūrere powered e tauranga yusb. Auau tūtohutanga o te Niniiraa, i toharite rite ki 160 mV. Ko te tere o te tohu i roto i te tauira, ko te tino nui. Te transceiver i roto i te wehe hiko te nuinga whakamahia momo hihiri. Anga te nuinga tono ki te moka tīwerawera. Ko iti iho i te 5.8 ohms Kairitu RS-485 putanga parenga ia.

Ko te whakamahi o tuwhera parenga

E hanga Pūrere ki tuwhera parenga 120 me 200 mA. hanga hononga Direct te mā te pouaka kāpeka. Kei te hanga tauira Power roto yusb tauranga. E tika ana rs puku 485 mō te kōrero raraunga hawhe-Matarua. He tino onge i roto i te pūnaha o tenei momo amplifiers kātua. E whakamahia tino nuitia Expanders momo o pini. I te toharite, he rite ki kaua e nui ake 135 mV he arorau kotahi taumata. Ko te roa mōrahi o tetahi wāhanga ko a tawhio noa 1300 nm.

Mā te whakamahi i te transceiver poipoi

Whakarerekētanga ki te transceivers poipoi e tika ana mō te rua hawhe-Matarua me kōrero ahungarua. Te tere whakawhiti raraunga i roto i tenei take, ko te rite ki te pā ana ki 230 moka ia hekona. Ko te ahei o te tautoko e pā ana ki tekau transceivers pūrere Tapeke. Ko te roa toharite o tetahi wāhanga e kore e nui ake 1400 nm. I roto i te tahuri, he rite ki te ātete putanga o 5.1 ohms te taupū. rate patua e i roto i tenei take whakawhirinaki i runga i te momo o te tīwerawera.