Dijital Din Rail Mita Counter 2P Mitar Lantarki

Mitar makamashin din-dogo mai waya-ɗaya-ɗaya kuma tana da bugun bugun jini mai cin gashin kansa ba tare da da'ira na ciki ba. An haɗa tashar jiragen ruwa 21 na mita zuwa madaidaicin iyaka, kuma tashar tashar 20 ta haɗa da madaidaicin iyaka. Tashar jiragen ruwa 23 ita ce madaidaicin sandar RS485, kuma tashar 24 ita ce madaidaicin sandar RS485. Da'irar tana buƙatar ƙarfin lantarki na 5 ~ 27V DC kuma matsakaicin halin yanzu na 27mA DC.

1.9.4 RS485 Aikace-aikacen Karatun Mitar Sadarwa (Tsarin Sadarwa) da Adireshin Rijista

Mitar na iya yin rikodin bayanai daga nesa kamar makamashin lantarki a cikin mita ta hanyar hanyar sadarwa ta RS485 kuma ya rubuta bayanan makamashin lantarki a cikin mita a kusa da kwamfuta mai hannu ta hanyar sadarwar infrared. Tsarin rufaffen rikodi, daidaito (har ma da daidaici) da yanayin watsa bayanai (bitin bayanai takwas, bit tasha ɗaya) sun cika daidaitattun buƙatun MODBUS-RTU. Adadin baud na sadarwa na iya zama 1200bps, 2400bps, 4800bps ko 9600bps (tsoho). Idan babu buƙatu na musamman, ana saita mita gwargwadon ƙimar baud ɗin tsoho na 9600bps. Ana iya canza adireshin mita da ƙimar baud ɗin sadarwa ta software da muke samarwa.

Mitar tana amfani da nau'ikan rajista biyu, waɗanda aka yi magana da kansu.

Nau'in farko shine rajistar bayanai, karanta-kawai, ta amfani da lambar umarni 0x04 don karantawa.

Nau'i na biyu shine rajistar parameter, wanda ake iya karantawa kuma ana iya rubutawa, karanta ta amfani da lambar umarni 0x03, sannan saitin ta amfani da lambar umarni 0x10.

Kamar RS-422, RS-485 yana da matsakaicin nisan watsawa na kusan mita 1219 da matsakaicin adadin watsawa na 10 Mb/s. Tsawon ma'auni na ma'auni na ma'auni ya bambanta da adadin watsawa. Zai yiwu a yi amfani da tsayin kebul mafi tsayi da aka ƙayyade kawai lokacin da yawan watsawa ya kasa 100 kb/s. Mafi girman watsawa zai yiwu ne kawai a ɗan gajeren tazara. Gabaɗaya, matsakaicin adadin watsa na USB murɗaɗɗen mita 100 shine kawai 1 Mb/s.

Topology na cibiyar sadarwa na RS-485 gabaɗaya yana ɗaukar tsarin nau'in bas ɗin da ya dace da tasha kuma baya tallafawa cibiyoyin sadarwa na zobe ko tauraro. Yana da kyau a yi amfani da bas don haɗa nodes daban-daban a jere, kuma tsawon layin gubar daga bas zuwa kowane kulli ya kamata ya zama gajere gwargwadon yiwuwa don siginar da aka nuna a cikin layin jagora ya sami ƙaramin tasiri akan bas ɗin. sigina. A taƙaice, ya kamata a samar da hanyar sigina guda ɗaya mai ci gaba a matsayin bas.

Ya kamata a haɗa garkuwar garkuwar murɗaɗɗen nau'i-nau'i zuwa tashoshin garkuwa na kowace na'ura RS-485. An ba da izinin kafa garkuwa a lokaci ɗaya kawai.

Matsayin Jagorar Kyautar RoHS 230V Reference Voltage, 5A Mahimmanci na Yanzu 80A Matsakaicin Matsakaicin Aiki na Murren aiki shine 50Hz± 10% Amfanin Wutar Cikin Gida shine ≤2W / 10VA

Mitar tana amfani da nau'ikan rajista biyu, waɗanda aka yi magana da kansu.

Nau'in farko shine rajistar bayanai, karanta-kawai, ta amfani da lambar umarni 0x04 don karantawa.

Nau'i na biyu shine rajistar parameter, wanda ake iya karantawa kuma ana iya rubutawa, karanta ta amfani da lambar umarni 0x03, sannan saitin ta amfani da lambar umarni 0x10.

Mitar na iya yin rikodin bayanai daga nesa kamar makamashin lantarki a cikin mita ta hanyar hanyar sadarwa ta RS485 kuma ya rubuta bayanan makamashin lantarki a cikin mita a kusa da kwamfuta mai hannu ta hanyar sadarwar infrared.