Ezinhlelweni zikagesi, ukuqapha ngesikhathi sangempela kubalulekile. Kodwa-ke, njengoba ukusebenza kohlelo lukagesi kuncike enanini elikhulu lemishini ekhona, ukuqapha ngesikhathi sangempela kuyinselele kakhulu kubasebenzi bokusebenza nokulungisa. Nakuba izinhlelo eziningi zikagesi zinezinhlelo zokuguqula nokuthuthukisa, zivame ukungakwazi ukuzisebenzisa ngenxa yesabelomali esincane. Eziteshini ezincane ezinesabelomali esincane, ikhambi elifanele ukuxhuma ingqalasizinda ekhona kunethiwekhi ye-IEC 61850, okunganciphisa kakhulu ukutshalwa kwezimali okudingekayo.
Izinhlelo zamandla ezikhona esezisebenze amashumi eminyaka zifake amadivayisi amaningi ngokusekelwe kumaphrothokholi okuxhumana azimele, futhi ukuzishintsha zonke ngesikhathi esisodwa akuyona inketho engabizi kakhulu. Uma ufuna ukuthuthukisa uhlelo lokuzenzakalela kwamandla futhi usebenzise uhlelo lwesimanje lwe-SCADA olusekelwe ku-Ethernet ukuqapha amadivayisi asensimini, indlela yokufeza izindleko eziphansi kakhulu kanye nokufakwa okuncane komuntu kuyisihluthulelo. Usebenzisa izixazululo zokuxhumanisa ezifana namaseva edivayisi e-serial, ungasungula kalula ukuxhumana okusobala phakathi kohlelo lwakho lwe-SCADA olusekelwe ku-IEC 61850 kanye namadivayisi akho asensimini asekelwe kuphrothokholi azimele. Idatha yephrothokholi ezimele yamadivayisi asensimini ihlanganiswe kumaphakethe edatha e-Ethernet, futhi uhlelo lwe-SCADA lungaqaphela ukuqapha kwangempela kwala madivayisi asensimini ngokuwavula.
Amasango kagesi e-Moxa's MGate 5119 Series-grade power gateways alula ukuwasebenzisa futhi asheshe asungule ukuxhumana okubushelelezi. Lolu chungechunge lwamasango alusizi nje kuphela ekufezekiseni ukuxhumana okusheshayo phakathi kwemishini ye-Modbus, DNP3, IEC 60870-5-101, IEC 60870-5-104 kanye nenethiwekhi yokuxhumana ye-IEC 61850, kodwa futhi lusekela umsebenzi wokuvumelanisa isikhathi we-NTP ukuqinisekisa ukuthi idatha inesitembu sesikhathi esihlanganisiwe. Uchungechunge lwe-MGate 5119 luphinde lube nejeneretha yamafayela e-SCL eyakhelwe ngaphakathi, elula ukukhiqiza amafayela esango le-SCL lesiteshi esincane, futhi awudingi ukuchitha isikhathi nemali ukuthola amanye amathuluzi.
Ukuze kuqashwe amadivayisi asensimini ngesikhathi sangempela kusetshenziswa amaphrothokholi obunikazi, amaseva edivayisi e-serial e-Moxa's NPort S9000 series angaphinde asetshenziswe ukuxhuma ama-IED e-serial engqalasizinda esekelwe ku-Ethernet ukuze kuthuthukiswe iziteshi ezincane zendabuko. Lolu chungechunge lusekela ama-serial ports afinyelela ku-16 kanye nama-switching ports angu-4 e-Ethernet, angapakisha idatha yephrothokholi yobunikazi kumaphakethe e-Ethernet, futhi axhume kalula amadivayisi asensimini ezinhlelweni ze-SCADA. Ngaphezu kwalokho, uchungechunge lwe-NPort S9000 lusekela imisebenzi yokuvumelanisa isikhathi ye-NTP, SNTP, IEEE 1588v2 PTP, kanye ne-IRIG-B, engazivumelanisa futhi ivumelanise amadivayisi asensimini akhona.
Njengoba uqinisa inethiwekhi yakho yokuqapha nokulawula isiteshi esincane, kufanele uthuthukise ukuphepha kwedivayisi yenethiwekhi. Amaseva enethiwekhi yedivayisi e-Moxa kanye namasango ephrothokholi angabasizi abafanele bokubhekana nezinkinga zokuphepha, akusize uxazulule izingozi ezahlukahlukene ezifihliwe ezibangelwa ukuxhumana kwedivayisi yasensimini. Womabili amadivayisi ahambisana nezindinganiso ze-IEC 62443 kanye ne-NERC CIP, futhi anemisebenzi eminingi yokuphepha eyakhelwe ngaphakathi yokuvikela ngokuphelele amadivayisi okuxhumana ngezinyathelo ezifana nokuqinisekiswa komsebenzisi, ukusetha uhlu lwe-IP oluvunyelwe ukufinyelela, ukucushwa kwedivayisi kanye nokuphathwa okusekelwe ekuphepheni kwephrothokholi ye-HTTPS kanye ne-TLS v1.2 ekufinyeleleni okungagunyaziwe. Isixazululo se-Moxa siphinde senze njalo ukuskena kobungozi bokuphepha futhi sithatha izinyathelo ezidingekayo ngesikhathi esifanele ukuthuthukisa ukuphepha kwemishini yenethiwekhi yesiteshi esincane ngendlela yama-patches okuphepha.
Ngaphezu kwalokho, amaseva edivayisi e-Moxa axhunyiwe kanye namasango ephrothokholi ahambisana nezindinganiso ze-IEC 61850-3 kanye ne-IEEE 1613, okuqinisekisa ukusebenza kwenethiwekhi okuzinzile ngaphandle kokuthintwa yindawo enzima yeziteshi ezincane.
Isikhathi sokuthunyelwe: Juni-02-2023