imikhiqizo

Uhlolojikelele Lomkhiqizo

I-Trusted® Communications Interface (CI) iyimojula ehlakaniphile ehlinzeka ngezinsiza zokuxhumana eziningi zoMlawuli Othenjwayo, enciphisa ukulayishwa kokuxhumana kwe-Triple Modular Redundant (TMR) Processor. Imojula elungiseka umsebenzisi, i-CI ingasekela imidiya yokuxhumana eminingi. Kufikela kuma-Communication Interfaces (CIs) amane angasekelwa Uhlelo Oluthembekile.

Izici:

• Uhlelo Oluthembekile Lokusebenza. • I-Dual Ethernet nezimbobo ezine ze-serial. • Ukusekelwa kwezinqubo zokuxhumana ezihlukene. • Ukuxhumana okuvikelekile, okuthembekile ngezixhumanisi zokuxhumana ezisebenza kahle. • Isigqila se-Modbus. • I-Optional Modbus Master (ene-T812X Trusted Processor Interface Adapter). • Ukulandelana Kokuzithandela Kwemicimbi (SOE) Ngaphezulu kwe-Modbus. • I-Front Panel serial diagnostic port, iphutha kanye nezinkomba zesimo.

1.3. Uhlolojikelele

I-Trusted CI inikeza Uhlelo Oluthenjwayo Isixhumi Esibonakalayo Sokuxhumana esihlakaniphile, esisebenza njengokudluliselwa phakathi Kwephrosesa, amanye Amasistimu Athenjwayo, Isikhungo Sokusebenzela Sobunjiniyela kanye nezisetshenziswa zezinkampani zangaphandle.

1.3.1. Izingxenyekazi zekhompuyutha

Imojula ine-Motorola Power PC Processor. Isofthiwe ye-Bootstrap igcinwa ku-Erasable Programmable Read only Memory (EPROM). I-firmware esebenzayo igcinwa kumemori ye-flash futhi ingase ithuthukiswe nge-Front Panel Port. I-Trusted Operating System isetshenziswa kukho kokubili i-TMR Processor ne-CI. I-kernel yesikhathi sangempela ijubane eliphezulu, i-kernel yokusebenza ephezulu eyenzelwe amasistimu asabalalisiwe abekezelela amaphutha. I-kernel ihlinzeka ngezinsizakalo eziyisisekelo (ezifana nokuphathwa kwememori) kanye nezindawo zesoftware yamahhala. I-module watchdog iqapha ukusebenza kweprosesa kanye nama-voltage okukhiphayo weyunithi yokuphakela amandla (PSU). Imojula inikezwa okuphakelayo kwamandla okuphindwe kabili okungafuneki +24 Vdc kusuka ku-chassis backplane. Iyunithi yokuphakelwa kwamandla ebhodini inikeza ukuguqulwa kwamandla kagesi, isimo sokuhlinzeka nokuvikela. I-Trusted CI ixhumana Ne-Trusted TMR Processor nge-triplicated InterModule Bus. Uma kuvotwa nge-Trusted TMR Processor, isixhumi esibonakalayo sebhasi sivotela idatha 2 koku-3 (2oo3) ku-Inter-Module Bus futhi idlulisa impendulo yayo ngawo womathathu amashaneli e-Inter-Module Bus. Ingxenye esele ye-Communications Interface ilula. Wonke ama-transceivers okuxhumana ahlukaniswe ngogesi komunye nomunye kanye nemojuli futhi anezinyathelo zokuvikela zesikhashana ezengeziwe. Izinsiza zangaphakathi zemojuli zihlukanisiwe kuma-dual 24 Vdc feed.

1.3.2. Ezokuxhumana

Ukucushwa kwekheli le-Ethernet Media Access Control (MAC) kuphethwe yi-CI njengengxenye yolwazi lwayo lokucushwa. Olunye ulwazi olumayelana nembobo nokucushwa kwephrothokholi lutholakala Kuprosesa we-TMR, njengengxenye yefayela le-System.INI. Idatha idluliswa phakathi Kwephrosesa ye-TMR kanye Nezikhonzi Zokuxhumana kusetshenziswa isixhumi esibonakalayo esivamile esibizwa ngokuthi I-Network Variable Manager. Uma idatha ifundwa Kuhlelo Oluthenjwayo, idatha itholwa kukhophi yasendaweni egcinwe ku-Communications Interface, ihlinzeka ngempendulo esheshayo. Ukubhalwa kwedatha kuyinkimbinkimbi kakhulu. Uma ukubhalwa kwedatha kumane kubuyekeze ikhophi yasendaweni futhi kwabe sekudluliselwa kumcubunguli, ezinye I-Communications Interfaces ohlelweni zizophatha idatha ehlukile. Lokhu kungase kubangele izinkinga kuzixhumanisi ezingasasebenzi. Ukuze unqobe le nkinga, lapho idatha ibhalwa ku-Communications Interface, iqale idluliselwe ku-TMR Processor futhi okubhaliwe kwamukelwa ngokushesha yi-Communications Interface (ukugwema ukubambezeleka kokuxhumana). Iphrosesa ibuyekeza eyakhe imininingo egciniwe bese ithumela idatha emuva kuzo zonke i-Communications Interfaces ukuze zonke zibe nedatha efanayo. Lokhu kungathatha isicelo esisodwa noma ezimbili zokuskena. Lokhu kusho ukuthi ukufundwa okulandelayo kuzothola idatha endala ngokushesha ngemva kokubhalwa, kuze kube yilapho idatha entsha isatshalaliswa. Zonke izinguquko kumapharamitha we-CI .INI zingalayishwa ku-inthanethi futhi zizoqala ukusebenza ngokushesha; i-Communications Interface inqamula konke ukuxhumana futhi iqale kabusha. Ukuxhumana kuphinda kuqalwe kabusha esibuyekezweni se-inthanethi sohlelo lokusebenza futhi kuyavalwa lapho isicelo kumiswa.