Kwimeko yemizi-mveliso yanamhlanje eguquka ngokukhawuleza, imfuno yothungelwano oluthembekileyo nolusebenzayo lonxibelelwano ibaluleke kakhulu kunangaphambili.Iiswitshi Ethernet Industrialidlala indima ebalulekileyo ekuqinisekiseni usasazo lwedatha olungenamthungo kunye noqhagamshelo lothungelwano kwiindawo zoshishino. Phakathi kweentlobo ezahlukeneyo zokutshintsha kwe-Ethernet yemizi-mveliso, iiswitshi ezilawulwayo zibalasele ngeempawu zabo eziphambili kunye nokusebenza. Kweli nqaku, siza kujonga ngakumbi izibonelelo zokutshintsha kwe-Ethernet yemizi-mveliso kwaye kutheni zibalulekile kwizicelo zale mihla zemizi-mveliso.
Ukutshintsha kwe-Ethernet yeshishini elilawulwayo libonelela ngenqanaba eliphezulu lolawulo kunye nokwenza ngokwezifiso kunokutshintsha okungalawulwayo. Ngokutshintsha okulawulwayo, abalawuli benethiwekhi banokuqwalasela nokulawula izicwangciso zokutshintsha, ukubeka phambili i-traffic, ukubeka iliso ekusebenzeni kwenethiwekhi, kunye nokuphumeza amanyathelo okhuseleko. Eli nqanaba lolawulo lixabiseke kakhulu kwiindawo zoshishino apho ukuthembeka kwenethiwekhi kunye nokhuseleko kubaluleke kakhulu.
Enye yeenzuzo eziphambili zokulawulwaiiswitshi Ethernet yamashishinikukwazi kwabo ukuxhasa umgangatho wenkonzo (QoS) iimpawu. I-QoS ivumela i-traffic data ebalulekileyo ukuba ibekwe phambili, iqinisekisa ukuba ulwazi olunexesha elide njengezibonakaliso zokulawula okanye idatha yexesha langempela lokubeka iliso libekwe phambili kwi-traffic engabalulekanga. Esi sikhundla sibaluleke kakhulu kwiinkqubo zokuzenzekelayo kunye nokulawula i-industrial, apho unxibelelwano lwexesha langempela lubaluleke kakhulu ekugcineni ukusebenza kakuhle kunye nokhuseleko.
Ukongezelela, iinguqu ezilawulwayo zibonelela ngeempawu zokhuseleko lwenethiwekhi eziphuculweyo, kubandakanywa uluhlu lokulawula ukufikelela, ukhuseleko lwe-port, kunye nenkxaso ye-LAN (VLAN) ebonakalayo. La manyathelo okhuseleko anceda ukukhusela uthungelwano lwemizi-mveliso ekufikeleleni okungagunyaziswanga, ukuphazamisa kunye nezoyikiso ezinokwenzeka kwi-cyber. Ngexesha lokunyuka kwe-cyberattacks kwimizi-mveliso, iimpawu zokhuseleko ezomeleleyo ezibonelelwa ngotshintsho olulawulwayo zibalulekile ekukhuseleni iziseko ezingundoqo kunye nedatha ebuthathaka.
Enye inzuzo yokutshintshwa kwe-Ethernet yoshishino olulawulwayo yinkxaso yeeprothokholi zolawulo oluphezulu ezifana neProtocol yoLawulo lweNethiwekhi elula (SNMP) kunye neRemote Monitoring and Control (RMON). Ezi prothokholi zenza ukuba kubekwe iliso kuthungelwano olusebenzayo, ukulungelelaniswa komsebenzi, kunye nokusombulula iingxaki, ukuvumela abalawuli ukuba bachonge kwaye basombulule imiba enokubakho ngaphambi kokuba ibe nefuthe kwimisebenzi. Ukukwazi ukubeka iliso kude nokulawula uthungelwano lwemizi-mveliso luluncedo ngakumbi kumaziko amakhulu oshishino kunye neenkqubo ezisasazwayo.
Ukongeza, utshintsho olulawulwayo lubonelela ngokuguquguquka okukhulu kunye nokulinganisa, ukuvumela ukudalwa kwe-topology yenethiwekhi enzima kunye nokudityaniswa kwezixhobo ezahlukeneyo zoshishino kunye neeprothokholi. Ingaba idibanisa i-PLCs, i-HMIs, i-sensor okanye ezinye izixhobo zoshishino, iiswitshi ezilawulwayo zibonelela ngokusebenza okufunekayo ukuhlangabezana neemfuno ezahlukeneyo zenethiwekhi. Ukongezelela, ukukwazi ukwahlula inethiwekhi usebenzisa i-VLAN yenza ukuba ulawulo lwezithuthi olusebenzayo kunye nokuhlukaniswa kwezixhobo ezibalulekileyo okanye i-subsystems.
Isishwankathelo, iingenelo zokulawulwaiiswitshi Ethernet yamashishinizicacile. Ukusuka kulawulo oluphuculweyo kunye nokhuseleko kwizakhono zolawulo oluphezulu kunye nokuguquguquka, iiswitshi ezilawulwayo ziyimfuneko kwizicelo zale mihla zemizi-mveliso. Njengoko uthungelwano lwemizi-mveliso luqhubeka nokuvela kunye nokwanda, indima yokutshintsha okulawulwayo ekuqinisekiseni unxibelelwano oluthembekileyo nolusebenzayo luya kubaluleka ngakumbi. Ngokuqonda izibonelelo zokutshintsha kwe-Ethernet yemizi-mveliso elawulwayo, amashishini anokwenza izigqibo ezinolwazi xa esebenzisa uthungelwano lwemizi-mveliso olomeleleyo kunye nelomeleleyo.
Ixesha lokuposa: Mar-19-2024
