Uma idatha yokulinganisa ye-ultrasonic flowmeter yehluleka ukulayishwa ohlelweni lokulawula oluphakathi, inkinga ingase ivele kukhebula lokuxhuma. Ukuxazulula izinkinga kungenziwa kusukela kulezi zici ezine ezilandelayo:
Isinyathelo 1: Hlola uxhumano lwekhebula lokuxhumana. Okokuqala, qinisekisa ukuthi ikhebula lokuxhumana (njengemigqa ye-RS485 kanye nezintambo zenethiwekhi) phakathi kwe-flowmeter kanye nesistimu yokulawula ephakathi ixhunywe kahle, nokuthi ngabe izixhumi zikhululekile noma zi-oxidized. Uma kusetshenziswa ukuxhumana kwe-RS485, hlola ukuthi imigqa ye-A ne-B ixhunywe ngokuphambene. Ukuxhumeka okuphambene kuzobangela ukwehluleka kokudluliselwa kwedatha, ngakho-ke izintambo kudingeka zixhunywe kabusha ngokulandelana okufanele; uma kusetshenziswa ukuxhumana kwe-Ethernet, hlola ukuthi ikhebula lenethiwekhi liphelele yini, okungahlolwa ngokufaka ikhebula lenethiwekhi esikhundleni salo. Ngesikhathi esifanayo, qinisekisa ukuthi imishini yenethiwekhi efana nama-switch nama-router isebenza kahle nokuthi kukhona ukwehluleka kwamandla noma ukunqanyulwa kwenethiwekhi.
Isinyathelo 2: Qinisekisa ukuthi izilungiselelo zepharamitha yokuxhumana ziyahambisana. Faka isikhombimsebenzisi "sezilungiselelo zokuxhumana" se-flowmeter, hlola amapharamitha afana nesilinganiso se-baud, i-parity, ama-data bits kanye nama-stop bits, bese uqinisekisa ukuthi ahambisana ngokuphelele namapharamitha okuxhumana esistimu yokulawula ephakathi. Isibonelo, uma izinga le-flowmeter baud lisethwe ku-9600 futhi uhlelo lokulawula oluphakathi lusethwe ku-4800, kuzokwenzeka ukudluliswa kwedatha okungavamile, futhi amapharamitha womabili adinga ukulungiswa abe nenani elifanayo. Ngesikhathi esifanayo, hlola ukuthi ikheli ledivayisi (njengekheli lesigqila) le-flowmeter lingaphakathi kwebanga lokuqashelwa kwesistimu yokulawula ephakathi ukuze kugwenywe ukungqubuzana kwekheli noma okungaphandle kwebanga.
Isinyathelo 3: Xazulula inkinga ngezilungiselelo ze-firewall kanye nesofthiwe. Uma uhlelo lokulawula oluphakathi lusebenzisa isofthiwe yekhompyutha ukuthola idatha, hlola ukuthi i-firewall yekhompyutha iyayivimba yini imbobo yokuxhumana ye-flowmeter. I-firewall ingavalwa okwesikhashana ukuze ihlolwe. Uma idatha ingalayishwa ngokujwayelekile, umthetho wemvume yale mbobo kufanele wengezwe ku-firewall. Ngesikhathi esifanayo, hlola ukuthi isofthiwe yokulawula ephakathi ikhethe yini iphrothokholi yokuxhumana efanele (njenge-Modbus RTU, i-Modbus TCP). Amaphrothokholi angalingani angabangela ukwehluleka kokuhlaziya idatha, ngakho-ke iphrothokholi ehambisana ne-flowmeter idinga ukukhethwa kabusha.
Isinyathelo 4: Hlola ukuxhumana okuzimele kwemishini. Uma izinyathelo ezingenhla zivamile, i-flowmeter ingaxhunywa ngqo kwikhompyutha (ngaphandle kokudlula ohlelweni lokulawula oluphakathi), futhi isofthiwe yokuhlola esekelayo yemishini ingasetshenziswa ukuthumela idatha ukuhlola ukuthi ikhompyutha ingayithola yini. Uma ingamukelwa, kusho ukuthi ayikho inkinga nge-flowmeter uqobo, futhi iphutha lingase libe kwihadiwe noma isofthiwe yesistimu yokulawula ephakathi, ngakho-ke imodyuli yokuxhumana kanye nesofthiwe yokuthola idatha yesistimu yokulawula ephakathi kudingeka kuxazululwe inkinga; uma ingenakutholakala, imodyuli yokuxhumana ye-flowmeter ingase yonakale, futhi kuyadingeka ukuxhumana nomenzi ukuze kulungiswe noma kushintshwe imodyuli.
Isikhathi sokuthunyelwe: Okthoba-21-2025