Kwiinkqubo zamandla, ukujonga ngexesha langempela kubalulekile. Nangona kunjalo, ekubeni ukusebenza kwenkqubo yamandla kuxhomekeke kwinani elikhulu lezixhobo ezikhoyo, ukujonga ngexesha langempela kunzima kakhulu kubasebenzi bokusebenza nokulungisa. Nangona uninzi lweenkqubo zamandla zinezicwangciso zokuguqula nokuphucula, zihlala zingakwazi ukuzisebenzisa ngenxa yohlahlo-lwabiwo mali oluncinci. Kwizikhululo ezingaphantsi ezinebhajethi encinci, isisombululo esifanelekileyo kukudibanisa iziseko ezikhoyo kwinethiwekhi ye-IEC 61850, enokunciphisa kakhulu utyalo-mali olufunekayo.
Iinkqubo zamandla ezikhoyo ebezisebenza amashumi eminyaka zifake izixhobo ezininzi ngokusekelwe kwiiprotokholi zonxibelelwano ezizimeleyo, kwaye ukuzitshintsha zonke ngaxeshanye akulona khetho lungcono kakhulu. Ukuba ufuna ukuphucula inkqubo yokwenza ngokuzenzekelayo amandla kwaye usebenzise inkqubo ye-SCADA esekwe kwi-Ethernet yanamhlanje ukujonga izixhobo zasentsimini, indlela yokufumana ixabiso eliphantsi kunye negalelo elincinci lomntu yeyona nto iphambili. Ukusebenzisa izisombululo zonxibelelwano ezifana neeseva zezixhobo ezilandelelanayo, ungenza lula unxibelelwano olucacileyo phakathi kwenkqubo yakho ye-SCADA esekwe kwi-IEC 61850 kunye nezixhobo zakho zasentsimini ezisekwe kwiprotokholi. Idatha yeprotokholi ezimeleyo yezixhobo zasentsimini ipakishwe kwiipakethi zedatha ze-Ethernet, kwaye inkqubo ye-SCADA inokufezekisa ukujonga ngexesha langempela kwezi zixhobo zasentsimini ngokuzikhupha.
Iingcango zamandla ze-Moxa ze-MGate 5119 Series ze-substation-grade kulula ukuzisebenzisa kwaye zikhawuleza ziseke unxibelelwano olugudileyo. Olu luhlu lweengcango aluncedi nje kuphela ekufezekiseni unxibelelwano olukhawulezayo phakathi kwezixhobo zeModbus, DNP3, IEC 60870-5-101, IEC 60870-5-104 kunye nenethiwekhi yonxibelelwano ye-IEC 61850, kodwa lukwaxhasa umsebenzi wokuvumelanisa ixesha le-NTP ukuqinisekisa ukuba idatha inesitampu sexesha esidibeneyo. Uthotho lwe-MGate 5119 lukwanayo nejenereyitha yefayile ye-SCL eyakhelwe ngaphakathi, elungele ukuvelisa iifayile zesango le-substation ze-SCL, kwaye akufuneki uchithe ixesha nemali ukufumana ezinye izixhobo.
Ukuze kujongwe izixhobo zasentsimini ngexesha langempela kusetyenziswa iiprotokholi ezizimeleyo, iiseva zezixhobo ze-serial ze-Moxa's NPort S9000 series zingasetyenziselwa ukuqhagamshela ii-serial IEDs kwiziseko ezisekelwe kwi-Ethernet ukuphucula izitishi zemveli. Olu ngcelele luxhasa ukuya kuthi ga kwi-16 serial ports kunye ne-4 Ethernet switching ports, ezinokupakisha idatha yeprotokholi ezimeleyo kwiipakethi ze-Ethernet, kwaye ziqhagamshele ngokulula izixhobo zasentsimini kwiinkqubo ze-SCADA. Ukongeza, ungcelele lwe-NPort S9000 luxhasa imisebenzi ye-NTP, SNTP, IEEE 1588v2 PTP, kunye ne-IRIG-B time synchronism, ezinokukwazi ukuzivumelanisa ngokwazo kwaye zivumelanise izixhobo zasentsimini ezikhoyo.
Njengoko uqinisa inethiwekhi yakho yokubeka esweni nokulawula i-substation, kufuneka uphucule ukhuseleko lwesixhobo senethiwekhi. Iiseva zenethiwekhi zezixhobo ze-Moxa kunye nee-protocol gateways ziluncedo olufanelekileyo lokujongana nemiba yokhuseleko, zikunceda ukusombulula iingozi ezahlukeneyo ezifihlakeleyo ezibangelwa yinethiwekhi yesixhobo sasentsimini. Zombini ezi zixhobo ziyahambelana nemigangatho ye-IEC 62443 kunye ne-NERC CIP, kwaye zinemisebenzi emininzi yokhuseleko eyakhelwe ngaphakathi yokukhusela ngokupheleleyo izixhobo zonxibelelwano ngemilinganiselo efana nokuqinisekiswa komsebenzisi, ukuseta uluhlu lwe-IP oluvunyelweyo ukufikelela, uqwalaselo lwesixhobo kunye nolawulo olusekwe kukhuseleko lweprotocol ye-HTTPS kunye ne-TLS v1.2 ekufikeleleni okungagunyaziswanga. Isisombululo seMoxa sikwaqhuba rhoqo ukuskena ubuthathaka bokhuseleko kwaye sithatha amanyathelo afunekayo ngexesha elifanelekileyo ukuphucula ukhuseleko lwezixhobo zenethiwekhi ye-substation ngendlela yeepatches zokhuseleko.
Ukongeza, iiseva zezixhobo ze-serial zeMoxa kunye nee-protocol gateways ziyahambelana nemigangatho ye-IEC 61850-3 kunye ne-IEEE 1613, ziqinisekisa ukusebenza kwenethiwekhi okuzinzileyo ngaphandle kokuchaphazeleka yimeko-bume enzima yezikhululo ezingaphantsi.
Ixesha lokuthumela: Juni-02-2023