iimveliso

2.5 Unyino Kukho imida ethile kunye neenketho ezininzi ekufuneka ziqwalaselwe xa ucwangcisa ukufakela kwakho. 2.5.1 Unyino loMzimba Kwisicelo se-EPLCG esingafunekiyo, iimodyuli ze-EPLCG eziziiprayimari nezesekondari zihlala zixhoma kwi-rack efanayo, kodwa azinakufumaneka kwimodyuli efanayo ye-node. Zidla ngokufakelwa kufutshane enye kwenye ngenxa ye-interlink okanye i-relay panel yobude be-cable cable. Ukuba inkqubo yakho isebenzisa intambo ye-interlink, ubude bayo bugxininiswe kwiimitha ezi-3. Enye ubude bentambo ayifumaneki. Ukuba inkqubo yakho isebenzisa iphaneli yokudluliselwa, ubude bentambo eqhelekileyo ukuya kwi-EPLCG yesibini yi-2m, kodwa ubude obunye bentambo buyafumaneka. Nangona kunjalo, ukuba intambo yepaneli ye-relay ende isetyenzisiweyo, imali eyongeziweyo kwikhebula lepaneli ye-relay kufuneka ithathwe kwi-Port 1 kunye ne-Port 2 cables. Ngokucacileyo, ubude bentambo yephaneli yerelay mayibe ngaphantsi kweemitha ezili-15 (50 feet). 2.5.2 I-Single vs. Multidrop Cabling Kufuneka kubekho intambo enye kuphela esuka kwizibuko ukuya kwi-PLC, imodem, okanye isilawuli sonxibelelwano eso sikhululo senkonzo. Ukuba ufuna ukusebenzisa i Modbus protocol multidrop ilungiselelo, kufuneka ubeke imodem yendawo kwi EPLCG enemodem ezikude eziqhagamshelwe kwiPLC nganye ekwinethiwekhi. Allen-Bradley (AB) iprotocol ye-multidrop amalungiselelo ahlala eqhagamshela ngomlawuli wonxibelelwano we-AllenBradley (i-CIM, yoNxibelelwano lweModyuli yoNxibelelwano). Ekubeni lo mlawuli wonxibelelwano unikezela udibaniso lwe-multidrop, kuphela intambo enye efunekayo ukusuka kwi-port ye-EPLCG ukuya kumlawuli we-AB. 2.5.3 Ubude bekhebhula Iintambo ezisuka kumazibuko e-EPLCG azinakuba nde ngaphezu kwe-15 leemitha zekhebula (ii-cable-feet ezingama-50). Ukuba umgama oya kwi-PLC okanye umlawuli wonxibelelwano uyagqitha kulo mda, kufuneka usebenzise iimodem zomgama omfutshane. Jonga kwicandelwana 2.6 malunga nokuqwalaselwa kwemodem. UCwangciso lwe-EPLCG, uFakelo, kunye neNkonzo2-10 5/01 2.5.4 2.5.4 uQhagamshelwano oluthe ngqo Ukuba udibanisa i-PLC eyodwa (okanye umlawuli wonxibelelwano we-AB) kwelinye lamachweba kunye nobude bentambo ukusuka kwi-EPLCG ukuya kwi-PLC ingaphantsi kwe-15 cable-meters, ungasebenzisa i-EIA-232 imowudi yonxibelelwano ngqo. Kolu lungiselelo, intambo ye-EIA-232 ebonelelwe ngu-Honeywell kufuneka ifakwe intambo ngokukodwa kwisidibanisi esidibana ne-PLC yakho. Amacandelwana 3.2.7 kunye ne-3.2.8 abonisa izikim zocingo lwentambo kwiindidi ezininzi zee-PLC kunye nezixhobo zojongano. 2.6 UQHAGAMSHELWANO lwe-EPLCG TO PLC 2.6.1 Usetyenziso lweModem kunye noKhetho Uqhagamshelo oluthe ngqo, iimodem zohambo olufutshane (maxa wambi zibizwa ngokuba yi-line-driver), okanye izixhobo zokuguqula umqondiso zingasetyenziswa ne-EPLCG. Njengoko kukhankanyiwe ngaphambili, uqhagamshelo oluthe ngqo lukhawulelwe kubuninzi beemitha ze-cable ze-15 phakathi kwe-EPLCI I / O okanye ikhadi le-Relay. Iziguquli zomqondiso zizixhobo eziguqula imiqondiso phakathi kwe-EIA-232 ne-EIA-422 okanye -485, kwaye ziqhele ukusetyenziswa ukubonelela ngomgama owandisiweyo okanye ulungelelwaniso lwamathontsi amaninzi. Imodem yohambo olufutshane ibonisa i-EIA-232 hardware interface kwi-EPLCG okanye i-PLC efana naleyo iboniswa ziimodem zesiqhelo zefowuni. Imodem yohambo olufutshane, nangona kunjalo, isebenzisa iintambo ezinikezelweyo (hayi iintambo zomnxeba) kwaye isenokukhululeka ngenkqubo yonxibelelwano engayi kwamkeleka kunxibelelwano lwemodem yefowuni eqhelekileyo. Iimodem zomnxeba eziqhelekileyo aziqheleki ukusetyenziswa kunye ne-EPLCG kuba zinciphisa kakhulu umda we-bandwidth, kwaye isantya sazo esisezantsi esiyimfuneko (izinga le-baud) sinokuthoba ukusebenza kwe-EPLCG. I-EPLCG nayo ayixhasi iimpawu zokuxhawula izandla ezifunwa ngokuqhelekileyo kwiimodem, kubandakanywa i-Request-To-Send (RTS), i-Clear-To-Send (CTS), i-Carrier Detect (CD), i-Data Set Ready (DSR), kunye ne-Data Terminal Ready (DTR). Izixhobo ezahlukeneyo kunye noqwalaselo lwentambo lunokwenzeka. Qhagamshelana nengcali yekhonkco lonxibelelwano okanye abathengisi bezixhobo kunye nekhebhuli ezifanelekileyo kwisicelo sakho.