mankhwala

Channel Active Njira iliyonse imatha kukhazikitsidwa ngati yogwira kapena yosagwira. Ngati tchanelo sichikugwira ntchito, chimasinthidwabe kuchokera ku A/D. Zosefera, makulitsidwe, machekidwe, ndi macheke a alamu samasiyidwa panjirayo, ndipo mtengo wa 0 umabwezeretsedwa ku BIU. Zoyimira za data yolowetsa za analogi zimabwezeretsa kutalika kwa byte ndipo sizidalira kuchuluka kwa ma tchanelo omwe akugwira ntchito. Ngati tchanelo chikugwira ntchito, ndipo kutalika kwa data ya analogi yokhazikika sikutalika kokwanira kutengera deta ya tchanelo china, deta ya tchanelocho imakonzedwabe, popeza kuyankha ku gulu lingagwiritsidwe ntchito kutumiza deta ya tchanelocho ku BIU. Malire Ochepa A Alamu ndi Ma Alamu Akuluakulu Njira iliyonse yolowera imatha kukhala ndi malire ochepera komanso ma alarm apamwamba. Ngati zolowetsazo zifika kumodzi mwa malire ake, gawoli limapereka lipoti la mtengo weniweni ndikutumiza kachidutswa koyenera patebulo la BIU la discrete input (I). Malire a ma alamu amatha kukhazikitsidwa paliponse pamtundu wosinthika wa siginecha. Mtundu wa aliyense ndi - 32,768 mpaka +32,767. Malire a alamu apamwamba ayenera kukhala aakulu kuposa malire otsika a alamu. Ngati malipoti a alamu sakufunidwa, malire a alamu amatha kukhazikitsidwa kupyola mawonekedwe amtundu wa siginecha kotero kuti sangayambitsidwenso. Cold Junction Compensation Module ya Thermocouple imapereka njira zinayi za Cold Junction Compensation. Palibe Cold Junction Compensation: Izi zimagwiritsidwa ntchito pazolowera za millivolt kapena ngati kuzizira kozizira kumasungidwa pa madigiri 0 C. Kulipiridwa kwa Cold Junction Remote: Ndi njirayi, kuzizira kozizira kumayesedwa kunja ndikuperekedwa ku module ndi BIU, pogwiritsa ntchito maumboni ake a% AQ. Ngati gawoli lili ndi ma thermocouples angapo omwe amakonzedwa kuti apereke malipiro akutali, malipiro ofanana ayenera kugwiritsidwa ntchito ndi aliyense. Fixed Cold Junction Compensation: Njirayi imagwiritsa ntchito mtengo wamalipiro wokhazikika womwe umaperekedwa ngati gawo la kasinthidwe ka module. Kulipiridwa kwa Cold Junction: Njira yabwino yoperekera chipukuta misozi yakomweko ndi Thermocouple Terminal Block. (IC670CHS004), yomwe ili ndi ma thermistors awiri omangidwa. Imateteza kulumikizana kwa thermocouple ku kutentha kwa module. Ngati malipiro akumaloko asankhidwa ndipo Thermocouple Terminal Block sikugwiritsidwa ntchito, ma thermitors osiyana ayenera kuikidwa mwachindunji pa I/O Terminal Block, pogwiritsa ntchito malo otchedwa Thermistor (+) ndi Thermistor (–). Thermistor iyenera kukhala BetaTHERM gawo # 8.5K3A4 (kapena yofanana) kuchokera ku BetaTHERM Corp., 910 Turnpike Rd., Shrewsbury MA, 01545 (ph: 508 842-0516, FAX: 508 842-0748) Chidziwitso: ma thermitors sagwiritsidwa ntchito, kutentha kolakwika kumatha kunenedwa. Kusankha Kwamitundu Gawoli litha kukhazikitsidwa pamitundu isanu ndi umodzi yosiyana ya millivolt (+/-): 19.5mV, 39mV, 78.125mV, 156.25mV, 312.5mV, ndi 625mV. Zonse koma zomaliza zimapereka zowerengera mu hundredths of millivolts. Pamtundu wa 625mV, zolowetsa zili mu magawo khumi a ma millivolts.