mankhwala

Chiyankhulo cha Host The Current Source Analogi Output Module ili ndi mawu 4 (8 byte) a data yotulutsa analogi. Gawo la Chiyankhulo cha Mabasi likufunika kuti lipereke deta iyi kwa wolandirayo komanso/kapena purosesa yakomweko. Ma module amasintha ma analogi kuchokera kwa wolandila kapena purosesa yakomweko kukhala zotulutsa zamakono. Kuchulukitsa kwa gawoli kumachitika ndi Bus Interface Unit. Kusankhidwa kwa Mapulogalamu a 0 mpaka 20mA ndi 4 mpaka 20mA kumapezeka pa njira iliyonse. Kugwiritsa ntchito 0 mpaka 20 mA kumafuna kukhazikitsa chodumphira chakunja cha waya pakati pa JMP ndi RET. Makulitsidwe osasintha a gawoli ndi awa: Eng Lo = 0 Eng Hi = 20,000 Int Lo = 0 Int Hi = 20,000 Mtundu wokhazikika ndi 0 mpaka 20mA. Module imatumizidwa popanda waya wodumphira. Chodumphiracho chiyenera kukhazikitsidwa kuti chigwirizane ndi kuchuluka kwa ma module ndi makulitsidwe. Mtundu wa 4-20mA umapereka 4 milliamp offset (0mA = 4mA chizindikiro), ndi chizindikiro cha 16mA. The 4mA offset imakhalabe bola ngati mphamvu ya analog loop ikugwiritsidwa ntchito, ngakhale mphamvu yamalingaliro itazimitsidwa. Zindikirani kuti zotuluka zosasinthika pakutayika kwa mauthenga omwe amalandila zimafunikira mphamvu zonse zakumbuyo ndi mphamvu yakumunda ya analogi. Kutulutsa kwachiwiri panjira iliyonse kumapereka mphamvu yamagetsi yosawerengeka. Mtundu wa 4 mpaka 20mA umafanana ndi 0 mpaka 10 volts. Mtundu wa 0 mpaka 20 mA umagwirizana ndi 0 mpaka 12.5 volts. Kudumphira kwawaya kumafunika pamtundu wa 0 mpaka 20mA. Ma volts onsewa ali ndi malire oyendetsa magalimoto omwe ali pamwamba pa 10 volts. Mphamvu yamagetsi imatha kugwiritsidwa ntchito yokha, kapena nthawi imodzi ndi makina oyendetsa ma mita kapena zida zamagetsi zamagetsi. Kuwunika kwa OPEN WIRE komwe kulipo pa tchanelo kumagwira ntchito pazomwe zikuchitika. Ngati mukugwiritsa ntchito magetsi otulutsa tchanelo, muyenera kuletsa cholakwikacho kapena kulumikiza dummy katundu wa 250 mpaka 800 ohms kudutsa ma terminals apano a tchanelo. Kulakwitsa kwa OPEN WIRE sikungakhudze magwiridwe antchito amagetsi. Zolemba zotuluka kunja kwa gawo la gawoli zidzayendetsa zotuluka pamlingo wocheperako kapena pamlingo wokulirapo koma sizingabweretse vuto la matenda.