Te Putanga o ngā Mita Rere

Ngā Momo Putanga Mita Rere

Ngā Putanga Analog

1. Putanga Ngaohiko
   He maha ngā mita rere e tuku ana i te putanga hiko ā-irahiko e hangai ana ki te ngaohiko. Hei tauira, ko te awhe noa pea ko te 0 – 5V, ko te 0 – 10V rānei. He rite te uara ngaohiko ki te tere rere i inehia. Ina tae te tere rere ki tōna uara iti rawa ka kitea i roto i te awhe o te mita, kei te pito raro o te tauine te ngaohiko putanga, hei tauira 0V. I te piki haere o te tere rere ā-rārangi, ka piki haere anō hoki te ngaohiko putanga ā-irahiko kia tae rā anō ki te uara mōrahi (hei tauira, 5V, 10V rānei) i te tere rere mōrahi kua whakaritea te mita hei ine. He whai hua tēnei momo putanga mō ngā tono ka taea e te taputapu whiwhi, pērā i te kaiwhakahaere māmā, te kairūri raraunga rānei me ngā hongere whakauru ā-irahiko, te whakamārama me te tukatuka i te tohu ngaohiko.
2. Putanga o nāianei
   Ko te porowhita iahiko 4 – 20mA he paerewa putanga anaro e whakamahia whānuitia ana i roto i te ao ahumahi. I roto i tēnei whakatakotoranga, ko te 4mA te tohu o te tere rere iti rawa (he maha ngā wā ka rerekē te rere kore ki te 4mA hei wehewehe i a ia mai i te pūoko pakaru, momotu rānei, ko te iahiko he 0mA), ā, ko te 20mA te tohu o te tere rere mōrahi. Ko te painga o te putanga iahiko i te putanga ngaohiko ko tōna ātete nui ake ki te haruru hiko i runga i ngā taura roa. Nā tēnei ka pai mō ngā tono kei reira te mita rere e tāutahia ana i roto i te taiao ahumahi haruru, i te wā rānei e hiahiatia ana te tuku i te tohu i runga i te tawhiti roa ki te rūma whakahaere.

Ngā Putanga Mamati

1. Putanga Pāta
   Ka whakaputahia e ngā mita rere me te putanga pātere ngā pātere hiko. Ko te maha o ngā pātere mō ia waeine wā e pā tika ana ki te tere rere. Hei tauira, ka taea te whakarite i tētahi mita rere kia puta ai he maha motuhake o ngā pātere mō ia rita wai e rere ana, hei tauira, 100 ngā pātere mō ia rita. Mā te tatau i ēnei pātere i roto i tētahi wā kua whakaritea, ka taea te tatau i te katoa o te rōrahi rere wai. He mea noa te whakamahi i ngā putanga pātere i roto i ngā tono ka taea te whakatinana ngāwari i ngā ara iahiko tatau ngāwari, pērā i roto i ētahi pūnaha aroturuki rere iti te utu, i roto rānei i ngā āhuatanga kei te taputapu whiwhi he āheinga tatau pātere motuhake.
2. Ngā Putanga Whakawhitiwhiti Rangatū
   He maha ngā kawa whakawhitiwhiti raupapa e whakamahia ana mō ngā putanga mita rere. Ko RS – 232, RS – 485, me Modbus ētahi o ngā mea tino rongonui. Mā te RS – 232, ka tukuna ngā raraunga raupapa i waenga i te mita rere me te taputapu whiwhi, pērā i te rorohiko, i te kaiwhakahaere arorau hōtaka rānei (PLC). I tētahi atu taha, ka taea e te RS – 485 te tautoko i ngā taputapu maha i runga i te pahi kotahi, ā, he roa ake te tawhiti tuku i te RS – 232. He kawa whānui te Modbus ka taea te whakamahi i runga i te RS – 485 me te Ethernet. Mā roto i ēnei putanga whakawhitiwhiti raupapa, ka taea e te mita rere te tuku i te uara tere rere o nāianei me ngā mōhiohio tāpiri pērā i te rere whakaemi, ngā haki tūnga (e tohu ana mēnā kei te mahi noa te mita, kua kitea rānei he hapa), me ngā raraunga whakatikatika. He mea nui tēnei huinga mōhiohio mō ngā tukanga ahumahi uaua e hiahiatia ana te aroturuki me te whakahaere whānui.

Ngā Putanga Ahokore

I ngā tau tata nei, me te whanaketanga o te hangarau ahokore, kua piki haere te maha o ngā taputapu mō ngā mita rere me ngā āheinga whakaputa ahokore. Ko te Nihokikorangi, te Wi-Fi, me te ZigBee ētahi o ngā kawa ahokore e whakamahia ana. He pai te Nihokikorangi mō te whakawhitiwhiti kōrero poto, e whakamahia ana mō ngā tono e hiahia ana te tohunga hangarau ki te uru tere ki ngā raraunga mita rere mā te whakamahi i tētahi taputapu pūkoro, pērā i te wā e whakatikatika ana i te papaanga, e rapurongoā ana rānei. Ka taea e te Wi-Fi te whakawhiti raraunga tere-teitei ki runga i tētahi wāhi nui ake, e āhei ai te whakauru ngāwari i ngā raraunga mita rere ki roto i tētahi whatunga whānui o te tipu me te uru atu mai i ngā wāhi maha. Ko te ZigBee, me ōna āheinga whatunga whatunga iti te whakapaunga hiko me te whakaora-ake, he mea whai hua mō ngā tono e hiahia ana kia honoa ngā mita rere maha i roto i tētahi tautuhinga ahumahi nui, ā, he mea nui te tiaki hiko me te whakawhitiwhiti kōrero pono.

Hei whakamutunga, ko te putanga o tētahimita rereHe maha ngā momo putanga, he rerekē ngā painga me ngā whakamahinga o ia putanga. Ko te whiriwhiri i te momo putanga ka whakawhirinaki ki ngā āhuatanga pēnei i te āhua o te tono, te tawhiti e hiahiatia ana e te tohu ki te haere, te momo taputapu whiwhi, me te uaua o te pūnaha whānui e whakauruhia ana te mita rere. He mea nui te mārama ki ēnei kōwhiringa putanga rerekē kia taea ai e ngā kaihangarau me ngā kaiwhakahaere te whakamahi pai i ngā raraunga mita rere hei arotau i ngā tukanga ahumahi.