Kuzinhlelo zamandla, ukuqapha ngesikhathi sangempela kubalulekile. Kodwa-ke, njengoba ukusebenza kwesistimu kagesi kuncike enanini elikhulu lemishini ekhona, ukuqapha ngesikhathi sangempela kuyinselele enkulu ekusebenzeni nasekunakekeleni izisebenzi. Nakuba izinhlelo eziningi zamandla zinezinhlelo zokuguqula nokuthuthukisa, ngokuvamile azikwazi ukuzisebenzisa ngenxa yesabelomali esiqinile. Ngeziteshi ezingaphansi ezinesabelomali esilinganiselwe, isisombululo esihle ukuxhuma ingqalasizinda ekhona kunethiwekhi ye-IEC 61850, enganciphisa kakhulu ukutshalwa kwezimali okudingekayo.
Amasistimu kagesi akhona osekuphele amashumi eminyaka esebenza afake amadivayisi amaningi asuselwa kuzivumelwano zokuxhumana zobunikazi, futhi ukuwashintsha wonke ngesikhathi esisodwa akuyona inketho engabizi kakhulu. Uma ufuna ukuthuthukisa isistimu ye-automation yamandla futhi usebenzise isistimu ye-SCADA yesimanjemanje ye-Ethernet ukuze uqaphe amadivaysi asenkambu, indlela yokufinyelela izindleko eziphansi kanye nokufaka okuncane komuntu kuwukhiye. Usebenzisa izixazululo ze-interconnect ezifana namaseva edivayisi ye-serial, ungakwazi kalula ukusungula ukuxhumana okusobala phakathi kwesistimu yakho ye-SCADA yamandla asekelwe ku-IEC 61850 kanye nemishini yakho yasensimini esekelwe kuphrothokholi. Idatha yephrothokholi yobunikazi yamadivayisi asenkambu ipakishwa kumaphakethe edatha e-Ethernet, futhi uhlelo lwe-SCADA lungabona ukuqapha kwesikhathi sangempela kwalawa madivayisi enkundla ngokuqaqa.
Amasango kagesi ebanga lesiteshi esingaphansi kwe-Moxa's MGate 5119 asebenziseka kalula futhi asungula ngokushesha ukuxhumana okushelelayo. Lolu chungechunge lwamasango alusizi nje kuphela ukubona ukuxhumana okusheshayo phakathi kwe-Modbus, DNP3, IEC 60870-5-101, imishini ye-IEC 60870-5-104 kanye nenethiwekhi yokuxhumana ye-IEC 61850, kodwa futhi isekela umsebenzi wokuvumelanisa isikhathi se-NTP ukuqinisekisa ukuthi idatha inesikhathi esihlangene. isitembu . Uchungechunge lwe-MGate 5119 luphinde lube nejeneretha yefayela ye-SCL eyakhelwe ngaphakathi, elungele ukukhiqiza amafayela e-SCL esangweni lesiteshi esincane, futhi awudingi ukuchitha isikhathi nemali ukuze uthole amanye amathuluzi.
Ngokugadwa kwesikhathi sangempela kwamadivayisi enkundla kusetshenziswa izivumelwano zobunikazi, amaseva edivayisi ewuchungechunge ye-Moxa's NPort S9000 nawo angatshalwa ukuze kuxhunywe ama-serial IED nengqalasizinda esekwe ku-Ethernet ukuze kuthuthukiswe iziteshi ezingaphansi ezivamile. Lolu chungechunge lusekela izimbobo ze-serial ezingafika kwezi-16 nezimbobo ezishintshayo ze-Ethernet ezi-4, ezingapakisha idatha yephrothokholi yobunikazi kumaphakethe e-Ethernet, futhi ixhume kalula izisetshenziswa zenkundla kumasistimu e-SCADA. Ngaphezu kwalokho, uchungechunge lwe-NPort S9000 lusekela i-NTP, i-SNTP, i-IEEE 1588v2 PTP, kanye nemisebenzi yokuvumelanisa yesikhathi ye-IRIG-B, engakwazi ukuzivumelanisa kokubili nokuvumelanisa amadivayisi asensimini akhona.
Njengoba uqinisa ukuqapha kwakho futhi ulawula inethiwekhi yesiteshi esincane, kufanele uthuthukise ukuphepha kwedivayisi yenethiwekhi. Amaseva enethiwekhi yedivayisi ewuchungechunge ye-Moxa namasango ephrothokholi angabasizi abalungile nje bokubhekana nezinkinga zokuphepha, okukusiza ukuxazulula izingozi ezihlukahlukene ezifihliwe ezibangelwa ukuxhumana kwedivayisi yasensimini. Womabili amadivayisi athobelana namazinga e-IEC 62443 kanye ne-NERC CIP, futhi anemisebenzi eminingi yokuvikela eyakhelwe ngaphakathi ukuze avikele ngokuphelele amadivayisi okuxhumana ngezinyathelo ezifana nokuqinisekisa komsebenzisi, ukusetha uhlu lwe-IP oluvunyelwe ukufinyelela, ukulungiselelwa kwedivayisi nokuphathwa okusekelwe ku-HTTPS ne-TLS v1. 2 ukuphepha kwephrothokholi ekufinyeleleni okungagunyaziwe. Isixazululo sika-Moxa siphinde senza amaskena wokuba sengozini kwezokuvikela futhi sithatha izinyathelo ezidingekayo ngesikhathi ukuze sithuthukise ukuphepha kwemishini yenethiwekhi yesiteshi esincane ngendlela yamapeshi okuphepha.
Ngaphezu kwalokho, amaseva we-serial device ye-Moxa kanye namasango ephrothokholi ahambisana namazinga e-IEC 61850-3 kanye ne-IEEE 1613, aqinisekisa ukusebenza kwenethiwekhi okuzinzile ngaphandle kokuthintwa indawo enzima yeziteshi ezincane.
Isikhathi sokuthumela: Jun-02-2023