imikhiqizo

2.5 Imikhawulo Kunemikhawulo ethile kanye nezinketho ezimbalwa okufanele zicatshangelwe lapho uhlela ukufaka kwakho. 2.5.1 Imikhawulo Engokwenyama Kuhlelo lwe-EPLCG olungadingekile, amamojula e-EPLCG ayisisekelo nawesibili ngokuvamile ahlala endaweni yokubeka efanayo, kodwa awakwazi ukutholakala kumojuli efanayo yamanodi amabili. Ngokuvamile zifakwa eduze kwenye ngenxa yemikhawulo yobude bekhebula lephaneli ye-interlink noma edluliselwe. Uma isistimu yakho isebenzisa ikhebuli ye-interlink, ubude bayo bumi kumamitha angu-3. Obunye ubude bekhebula abutholakali. Uma isistimu yakho isebenzisa iphaneli edluliselwe, ubude bekhebula obujwayelekile ukuya ku-EPLCG yesibili bungu-2m, kodwa obunye ubude bekhebula buyatholakala. Kodwa-ke, uma kusetshenziswa ikhebula lephaneli elidluliswayo ende, inani elingezwe kukhebula yephaneli edluliswayo kufanele likhishwe kukhebuli ngayinye Yechweba Loku-1 ne-Port 2. Ngokusobala, ubude bekhebuli yephaneli edluliselwe esikhundleni kufanele bube ngaphansi kwamamitha angu-15 (amafidi angu-50). 2.5.2 Ikhebula elilodwa uma liqhathaniswa ne-Multidrop Kumelwe kube nekhebula elilodwa kuphela elisuka echwebeni liye ku-PLC, imodemu, noma isilawuli sezokuxhumana leso mbobo okufanele siseviswe. Uma ufuna ukusebenzisa ilungiselelo le-multidrop lephrothokholi ye-Modbus, kufanele ubeke imodemu yasendaweni ku-EPLCG enamamodemu akude axhunywe ku-PLC ngayinye kunethiwekhi. Amalungiselelo ephrothokholi ka-Allen-Bradley (AB) amaningi ahlala exhumeka ngesilawuli sezokuxhumana se-AllenBradley (i-CIM, Yemojula Yesixhumi Esibonakalayo). Njengoba lesi silawuli sezokuxhumana sihlinzeka ngoxhumo lwama-multidrop, kudingeka ikhebula elilodwa kuphela ukusuka embobeni ye-EPLCG ukuya kusilawuli se-AB. 2.5.3 Ubude bekhebula Izintambo ezisuka ezimbotsheni ze-EPLCG azikwazi ukuba zinde kuno-15 wamamitha wekhebula (50 cable-feet). Uma ibanga eliya ku-PLC noma isilawuli sezokuxhumana lidlula lo mkhawulo, kufanele usebenzise amamodemu amafushane. Bheka isigatshana 2.6 ukuze uthole ukucatshangelwa kwemodemu. Ukuhlela, ukufakwa, kanye nesevisi ye-EPLCG 2-10 5/01 2.5.4 2.5.4 Ukuxhumana Okuqondile Uma uxhuma i-PLC eyodwa (noma isilawuli sezokuxhumana se-AB) kwelinye lamachweba futhi ubude bekhebula ukusuka ku-EPLCG kuya ku-PLC bungaphansi kwamamitha ekhebula angu-15, ungasebenzisa imodi ye-EIA-232 eqondile. Kulolu hlelo, ikhebula le-EIA-232 elihlinzekwe ngu-Honeywell kufanele lixhunywe ngokuqondile kusixhumi esihambisana ne-PLC yakho. Izigatshana 3.2.7 kanye no-3.2.8 zibonisa izikimu zezintambo zezintambo zezinhlobo ezimbalwa zama-PLC namadivayisi esixhumi esibonakalayo. 2.6 IZIXHUMANO ze-EPLCG TO PLC 2.6.1 Ukusetshenziswa Kwemodemu Nokukhethwa Ukuxhuma okuqondile, amamodemu amafushane (ngezinye izikhathi abizwa ngokuthi umshayeli welayini), noma amadivaysi okuguqula isignali angasetshenziswa ne-EPLCG. Njengoba kushiwo ngaphambili, ukuxhuma okuqondile kukhawulelwe kubukhulu obungamamitha ekhebula ayi-15 phakathi kwe-EPLCI I/O noma ikhadi le-Relay. Iziguquli zesignali ngamadivayisi aguqula amasiginali phakathi kwe-EIA-232 ne-EIA-422 noma -485, futhi avame ukusetshenziselwa ukuhlinzeka ngebanga elinwetshiwe noma ukucushwa kwamaconsi amaningi. Imodemu yokudonsa isikhathi esifushane yethula i-EIA-232 hardware interface ku-EPLCG noma i-PLC efana naleyo eyethulwa amamodemu ocingo avamile. Imodemu yobude obufushane, nokho, isebenzisa olayini abazinikele (hhayi olayini bocingo) futhi ingase ikhululeke ngesivumelwano esibonakalayo esingeke samukeleke ekuxhumaneni okuvamile kwemodemu yocingo. Amamodemu ocingo avamile awavamile ukusetshenziswa ne-EPLCG ngenxa yokuthi akhawulela kakhulu umkhawulokudonsa, futhi isivinini sawo esiphansi esidingekayo (isilinganiso se-baud) singehlisa ukusebenza kwe-EPLCG. I-EPLCG futhi ayiwasekeli amasiginali okuxhawula izandla avame ukudingeka kumamodemu, okuhlanganisa i-Request-To-Send (RTS), i-Clear-To-Send (CTS), i-Carrier Detect (CD), i-Data Set Ready (DSR), ne-Data Terminal Ready (DTR). Ukulungiselelwa okuhlukahlukene kwedivayisi nekhebula kuyenzeka. Xhumana nochwepheshe bezixhumanisi zokuxhumana noma abathengisi bemishini kanye nekhebula elifanele isicelo sakho.