Fin Nau'in Dijital Yarn Mitar Danshi

Nau'in Fin Dijital Yarn Mitar Danshi,
Mitar Danshi na China da Mitar Danshi,

Zafin ƙasa:
Nau'in wutar lantarki (0 ～ 5V fitarwa):
R = V / 5 × 100%
(R shine ƙimar danshin ƙasa kuma V shine ƙimar ƙarfin fitarwa (V))
Nau'in na yanzu (fitarwa 4 ~ 20mA):
R = (I-4) / 16 × 100%
(R shine ƙimar danshin ƙasa, ni ne ƙimar fitarwa na yanzu (mA))

Yanayin ƙasa:
Nau'in wutar lantarki (0 ～ 5V fitarwa):
T = V / 5 × 70-20
(T shine ƙimar zafin jiki da aka auna (℃), V shine ƙimar ƙarfin fitarwa (V), wannan dabarar tayi daidai da kewayon ma'auni -20 ℃ 50 ℃)
Nau'in Yanzu (4 ~ 20mA)
T = (I-4) / 16 × 70 -20
(T shine ma'aunin zafin jiki da aka auna (℃), Ni ne fitarwa na yanzu (mA), wannan dabarar tayi daidai da kewayon ma'auni -20 ~ 50 ℃)

1.Idan an sanye shi da tashar yanayi da kamfanin ke samarwa, haɗa firikwensin kai tsaye zuwa madaidaicin ma'amala akan tashar yanayi ta amfani da layin firikwensin;

2. Idan an siyi mai watsawa daban, layin da ya dace na mai watsawa shine:

Wutar lantarki mai watsawa da wayoyi masu fitarwa na yanzu:

Waya don yanayin fitarwar wutar lantarki

Waya don yanayin fitarwa na yanzu

Girman Tsari

Girman Sensor

1.Tsarin serial
Data bits 8 bits
Tsaya bit 1 ko 2
Duba Lambobin Babu
Baud rate 9600 Sadarwa tazara a kalla 1000ms
2.Tsarin sadarwa
[1] Rubuta adireshin na'ura
Aika: 00 10 Adireshin CRC (5 bytes)
Komawa: 00 10 CRC (4 bytes)
Lura: 1. Adireshin da ake karantawa da rubutawa dole ne ya zama 00. 2. Adireshin shine 1 byte kuma kewayon shine 0-255.
Misali: Aika 00 10 01 BD C0
Yana dawowa 00 10 00 7C
[2] Karanta adireshin na'ura
Aika: 00 20 CRC (4 bytes)
Komawa: 00 20 Adress CRC (5 bytes)
Bayani: Adireshin shine 1 byte, kewayon shine 0-255
Misali: Aika 00 20 00 68
Yana dawowa 00 20 01 A9 C0
[3] Karanta bayanan ainihin-lokaci
Aika: Adireshin 03 00 00 00 02 XX XX
Note: kamar yadda aka nuna a kasa

Komawa: Adireshin 03 04 XX XX XX XX YY YY
Lura

Don ƙididdige lambar CRC:
1.Rijistar 16-bit da aka saita shine FFFF a hexadecimal (wato, duka 1 ne).Kira wannan rijistar rajistar CRC.
2.XOR bayanan 8-bit na farko tare da ƙananan ragi na 16-bit CRC rajista kuma sanya sakamakon a cikin rijistar CRC.
3.Matsa abinda ke cikin rijistar zuwa dama ta hanyar daya (zuwa ƙaramin bit), cika mafi girma da 0, kuma duba mafi ƙarancin bit.
4.Idan mafi ƙarancin mahimmanci shine 0: maimaita mataki na 3 (sake komawa), idan mafi ƙarancin mahimmanci shine 1: Rijistar CRC tana da XORed tare da nau'in A001 (1010 0000 0000 0001).
5.Maimaita matakai 3 da 4 har sau 8 zuwa dama, domin an sarrafa dukkan bayanan 8-bit.
6.Maimaita matakai 2 zuwa 5 don sarrafa bayanai 8-bit na gaba.
7.Rijistar CRC a ƙarshe da aka samu ita ce lambar CRC.
8.Lokacin da aka saka sakamakon CRC a cikin firam ɗin bayanai, ana musanya babba da ƙananan rago, kuma ƙananan bit shine farkon.

Haɗa firikwensin bisa ga umarnin da ke cikin hanyar wayar, sannan saka fil ɗin bincike na firikwensin a cikin ƙasa don auna zafi, kuma kunna wutar lantarki da mai tarawa don samun zafin ƙasa da zafi a wurin aunawa.

1.Da fatan za a bincika ko marufi ba shi da kyau kuma duba ko ƙirar samfurin ya yi daidai da zaɓin.
2.Kar a haɗa da wuta, sannan kunna wuta bayan duba wayoyi.
3.Kada a canza gaɓar abubuwa ko wayoyi waɗanda aka siyar da su lokacin da samfurin ya bar masana'anta.
4.Na'urar firikwensin daidaitaccen na'ura ne.Da fatan za a karɓe shi da kanku ko taɓa saman firikwensin tare da abubuwa masu kaifi ko gurɓataccen ruwa don guje wa lalata samfurin.
5.Da fatan za a kiyaye takaddun tabbatarwa da takaddun shaida, kuma mayar da shi tare da samfurin lokacin gyarawa.

1.Lokacin da aka gano fitarwa, nunin yana nuna cewa ƙimar ita ce 0 ko kuma ba ta da iyaka.Bincika ko akwai toshewa daga abubuwa na waje.Mai yiwuwa mai tarawa ya kasa samun bayanin daidai saboda matsalolin waya.Da fatan za a duba ko wayoyi daidai ne kuma tabbatacce;
2. Idan ba dalilai na sama ba, da fatan za a tuntuɓi masana'anta.

Nau'in Fin Dijital Yarn Mitar Danshi,
Mitar Danshi na China da Mitar Danshi,