Ukwenziwa kwezinsimbi zezimboni kuye kwathuthuka kakhulu eminyakeni embalwa edlule, lapho iningi lamathuluzi lalikhawulelwe ekuphumeni okulula kwe-analog okungu-4-20mA noma okungu-0-20mA okuhambisana nokuguquguquka kwenqubo. Ukuguquguquka kwenqubo kwaguqulwa kwaba isignali ye-analog enikezelwe kusuka kuthuluzi ngentambo engu-2 kuya ohlelweni lwesikhombisi noma lokulawula, olunezilungiselelo eziningi, ezidinga ukufinyelela okuqondile ukuze kulungiswe ngesandla ngabasebenzi bokulungisa.
Izinzuzo ezingaba khona zobuchwepheshe bedijithali ekusetshenzisweni kwezinsimbi ziye zaqashelwa kamuva. Kungaba khona ingcebo yedatha nemisebenzi ebalulekile equkethwe ethuluzini, njengokucushwa kwedivayisi, imikhawulo ye-alamu, isikhathi sokusebenza kanye nezimo, ulwazi lokuxilonga, njll. Ukuthola idatha enjalo kusiza ukuthuthukisa ukusebenza kwedivayisi, futhi ekugcineni kuthuthukise ukusebenza kwenqubo.Iphrothokholi ye-HARTkwavela njengenye yezindlela zokuqala zokufinyelela lolu lwazi olulahlekile ukuze kwenziwe amathuluzi ahlakaniphe.
Ubuchwepheshe be-HART buvumela ukuxhumana nethuluzi le-analog kusetshenziswa isignali yokuxhumana yedijithali edluliselwa ngocingo olufanayo olunezintambo ezimbili njengokukhipha kwe-analog. Lesi signali yedijithali sinikeze ukuxhumana okunezindlela ezimbili phakathi kwethuluzi kanye nomsingathi ngaphandle kokuphazamisa ukuphuma, okwenza kube lula ukufinyelela ezingcezu ezahlukene zedatha. Nge-HART, abasebenzi bangaxhumana nomthumeli futhi benze ukucushwa noma ukuxilongwa ngenkathi benza ukulinganisa inqubo ngesikhathi sangempela.
Ngesikhathi esifanayo, ukuthuthukiswa kobunye ubuchwepheshe bedijithali nakho kwakuqhubeka okwakuzodluliselwa ngemigwaqo emikhulu yokuxhumana ezinikele, ngayinye inikeza izinzuzo ezithile, kufaka phakathi ubuchwepheshe be-Fielbus obumeleIphrothokholi ye-Modbus ene-interface ye-RS-485I-Modbus iyiphrothokholi evulekile ye-master-slave elandelanayo, evumela noma yimuphi umenzi ukuthi ahlanganise le phrothokholi ethuluzini, ukuze anikeze ukufinyelela kwasendaweni kumathuluzi ahlakaniphile avela ezinhlelweni zokusingatha.
Isidluliseli Sokucindezela se-WangYuan WP401A Esinomphumela we-RS485 Modbus kanye ne-Ex-proof
Ngenxa yentuthuko yezobuchwepheshe eminyakeni engamashumi amahlanu edlule, ukudluliswa kwezinsimbi kuye kwavela ekuguqukeni kwenqubo eyinhloko kuphela kwaba ulwazi oluningi olutholakalayo olufinyelela ezingeni lebhizinisi. Esikhathini esizayo, ubuchwepheshe bedijithali buzoqhubeka nokuhlinzeka ngemininingwane eyengeziwe evela kubathumeli, ngezindlela eziningi zokufinyelela.
KwaWangYuan, umkhiqizi waseShayina onolwazi oluningi lweminyaka engaphezu kwengu-20 emkhakheni wezinsimbi zomculo, sibeka phambili ukusetshenziswa kwemikhiqizo yokuxhumana ehlakaniphile yemikhiqizo yezinsimbi zokulinganisa. Iningi lemikhiqizo yethu yokulinganisa ingcindezi, izinga, izinga lokushisa kanye nokugeleza yamukela ukwenziwa ngokwezifiso kokukhishwa kwesignali okuhlanganisa i-HART Protocol ebhalisiwe nesisekelo kanye ne-RS-485 Modbus ukuze kuhlangatshezwane nezidingo zabasebenzisi kanye nesimo sensimu.
Isikhathi sokuthunyelwe: Mashi-25-2024