Ƙarin Sashin Kula da Bus GE Fanuc IC697BEM761

Takaitaccen Bayanin Samfur

IC697BEM761 na’ura ce ta ainihi mai ƙwararren ingancin masana’antu, nau’in Bus Expansion Module (wanda aka fi kira Remote/Expansion Rack Receiver) da kamfanin GE Fanuc ya ƙera don tsohuwar dandamalin Series 90-70 PLC. An ƙera wannan na’ura ne don ta faɗaɗa backplane na chassis na CPU na gida zuwa jere-jeren rack masu jiki da yawa, don sauƙaƙe sarrafa I/O da aka rarraba cikin sauri ba tare da jinkirin sadarwa ba. Ana sanye da ita da tashoshi biyu na 37-pin D-shell sub-ports, wanda ke ba da damar haɗa upstream da downstream a jere (daisy-chain) cikin sauƙi a cikin manyan bangarorin panel. Tana da ƙarfaffen jikin chassis mai nauyin kusan 1.5 lbs (kimanin 0.68 kg), IC697BEM761 tana samar da haɗin kai tsaye na kayan aikin hardware wanda ke ɗaukar shigarwa da fitowar nesa (remote I/O) kamar ƙananan bits na ƙwaƙwalwar ajiya a cikin CPU mai kula (master CPU controller).

Manyan Fa’idodin Fasaha

• Babban Ƙarfin Faɗaɗa Tsari: Yana bai wa hanyoyin sadarwar masana’antu damar faɗaɗawa zuwa har rack 8 na ƙarin faɗaɗa a kowace hanya. A matsakaicin rabon maki 256 a kowane rack, wannan yana bayar da jimillar damar har zuwa maki 2,048 na I/O na rarrabe da ake sarrafawa cikin sauƙi ta hanyar gidan tafi ɗaya (single interface node).
• Abubuwan Gina Tsaron Sigina a Ciki: Yana ƙunshe da resistors na backplane masu ƙarshen layi da masana’anta suka riga suka sa. Wannan yana kawar da buƙatar ƙarin resistors masu lilo a waje kuma yana hana maimaituwar siginar bayanan ƙuduri mai yawa ko raunin sigina a kan dogayen igiyoyin kebul na layi-layi (parallel).
• Gaggawar Bincike na Gida: Yana da jerin fitilu uku na LED a gaban na’urar (RACK, MODULE, I/O CHAIN) da ke ware matsalolin matakin jiki (physical layer) a ainihin lokacin, yana bai wa ma’aikatan gyara damar bambance gajeriyar katin hardware da katsewar igiyar kebul nan take.

Ƙayyadaddun Bayanai na Fasaha

Jagorar Shigarwa & Haɗa Rack da yawa

• Rabawa na Ramin Chassis: Dole ne a saka module ɗin IC697BEM761 a ramin faɗaɗa da aka tsara na rack na faɗaɗa Series 90-70. Kullum a kashe dukkan na’urorin wutan tsarin gaba ɗaya kafin saka ko cire module ɗin daga masu haɗin backplane.
• Tsarin Haɗa Daisy-Chain: Haɗa igiyar faɗaɗa mai saurin gaske wadda ta fito daga rack na master transmitter (IC697BEM713 ko makamancinsa) zuwa tashar upstream 37-pin. Idan za a haɗa ƙarin racks a ƙarshen sarkar, a haɗa wata igiyar faɗaɗa daga tashar downstream 37-pin zuwa node na gaba na nesa.
• Daidaita Makin Adireshin Rack: Tabbatar cewa jumpers na ciki ko kayan aikin saitin software sun dace da zaɓin girman rack ɗin da aka yi (bits 128 ko 256). Idan aka sami maimaita sararin adireshi (overlap), hakan zai haifar da rikici a saitin bus, wanda zai kunna fitilun kuskure na gaban module.

Tsare-Tsaren Injiniya & Matrix na Bincike

• Alamar Matsalar RACK: Idan ta kunna, wannan jan fitila tana sanar da tawagar gyara cewa an gano babbar matsala ta hardware a cikin wannan takamaiman chassis na faɗaɗa (kamar raunin wutar lantarki ko matsalar rami).
• Alamar Dubawar Cikin MODULE: Jan haske mai ɗorewa yana nuna cewa micro-controller ɗin da ke cikin module ɗin ya kasa wuce gwajin kansa (self-test) ko ya gamu da kuskuren lissafi mai tsanani, wanda ke buƙatar a maye gurbin hardware ɗin.
• Alamar Sadarwar I/O CHAIN: Yana kyalli ko yana zama kai tsaye yayin jinkirin sadarwar downstream, katsewar layin igiyar 37-pin, ko ƙarshen sarkar da ba a yi masa termination ba a cikin mahaɗan rack da yawa.

Tambayoyi na Fasaha (FAQs)

Q1: Menene ƙarin ma’anar ƙarshen “761” idan aka kwatanta da tsoffin nau’ikan?
A1: Ƙarshen “761” yana nuna takamaiman sigar hardware da firmware wadda ke da ingantattun hanyoyin bincike a ciki, daidaitattun bayanan kwanciyar faɗaɗa racks da yawa, da kuma ingantaccen tsarin lokaci (timing logic) da aka tsara don daidaita da saurin sarrafawar VME mai ƙarfi.

Q2: Ana buƙatar wata na’urar wutar lantarki ta waje ta musamman don gudanar da IC697BEM761?
A2: A’a. Module ɗin faɗaɗa yana jan bukatar ƙarfin aikinsa na 1.3 Amp kai tsaye daga layin 5V DC na backplane na chassis Series 90-70. Tabbatar cewa module ɗin samar da wuta na rack (misali IC697PWR711 ko makamancinsa) yana da isasshen ƙarin ƙarfin aiki (headroom) don ɗaukar wannan kaya tare da katunan I/O na yau da kullum.

Q3: Zan iya cire igiyoyin faɗaɗa 37-pin yayin da tsarin PLC ke ci gaba da aiwatar da lamba (code)?
A3: Gaba ɗaya a haramta. Cire igiyar bus na faɗaɗa parallel yayin da take aiki yana katse sadarwar backplane kuma zai iya haifar da tashi na ƙarfin lantarki (inductive voltage spikes). Wannan nan take zai haifar da babbar matsalar CPU, ya dakatar da PLC, kuma na iya lalata ƙananan na’urorin tuƙa layi (line driver circuits) da ke cikin tashoshin module ɗin.