How the Chornobyl NPP Got Modernized in the 1990s
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How the Chornobyl NPP Got Modernized in the 1990s
During the 1990s the Chornobyl Nuclear Power Plant – formerly the Chernobyl NPP – continued operating with its remaining three RBMK reactors, but of course the 1970s-era automation with its very limited SKALA computer required some serious modernization. What was interesting here is that instead of just replacing this entire Soviet-era mainframe with a brand-new 1990s one, the engineers responsible opted to build a new system – called DIIS – around it. This is detailed in a recent video by the [Chornobyl Family] on YouTube.
This SKALA industrial control system was previously detailed in a video, covering this 24-bit mainframe computer and its many limitations. It wasn’t quite a real-time control system, but it basically did what it was designed to do. Since at the time it was not clear for how long these three RBMKs would be kept running, they didn’t want to go overboard with investments either.
Ultimately Unit 2 only was active until 1991 due to a turbine fire, Unit 1 until 1996 and Unit 3 was shutdown for the last time in 2000, so this a sensible decision. During those years, an auxiliary information-measurement system (DIIS) was the big upgrade, which got bridged into SKALA via a Ukrainian-made SM-1210 minicomputer, with the latter connected to an 80386 PC which itself was connected to an ARCnet hub.
Best part of this DIIS upgrade was that it made it possible to run modeling algorithms for the reactor core based on measurements, without having to send data all the way over to the central control office in Moscow. Now reactor parameters could be visualized in real-time, and adjustments made via the same PRIZMA program’s magnetic tapes of the SKALA system as before.
Although the result was a bit of an odd mixture of 1970s Soviet mainframe design, 1980s-derived Ukrainian mainframe design and 1990s Intel computing power, it worked well enough to bring the ChNPP to the very doorstep of the 21st century with no issues worthy of note. Definitely a testament to the engineers who hacked this upgrade together and made it work so smoothly.
youtube.com/embed/86iGeVGZYQ4?…
Gli ultimi otto messaggi ricevuti dalla Federazione
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@Alberto @electricsheep @matz @simone @marcoboh @bradipo eh sì infatti l'ho scritto, a questo punto se proprio serve piuttosto Alipay (e non è che sia tanto meglio, ma piuttosto che i tecnonazisti americani)
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@ilsimoneviaggiatore grazie, ho capito. Quindi è un argomento di scarso interesse per l'utente comune, ma di alto interesse per le PMI
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@Zambunny lavati i denti, sentirsi la bocca fresca può far passare la voglia di sporcarla
Se non funziona mangia il dentifricio 😅
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Compagnie petrolifere Usa al presidente: “Probabile che la crisi peggiori"
Repubblica
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Perché questo servizio è destinato principalmente alle aziende.
https://www.ilsoftware.it/office-eu-la-suite-cloud-open-source-europea-sfida-microsoft-365/
Cito una parte interessante:
Se Office EU si basa su Nextcloud Hub, che senso ha installarlo? Nextcloud Hub è una soluzione che si installa on-premises su server propri (Linux, Docker, macchine virtuali), offrendo pieno controllo e privacy senza dipendenze cloud esterne. Office EU ha senso per chi non vuole gestire installazioni, aggiornamenti, backup o scalabilità in autonomia, specialmente PMI e utenti con poche competenze nel settore IT. Si propone come una versione di Nextcloud Hub “pronta all’uso” europea, con integrazioni ottimizzate e zero complicazioni, mantenendo piena conformità con il GDPR.
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Come comico indubbiamente un fuoriclasse. Come persona probabilmente meno, anche se aver creato Telethon è un bonus a suo favore (qui citavo la reunion con #DeanMartin avvenuta in quell'occasione https://mastodon.uno/@fucinafibonacci/115779836904620380). Ma anche come attore aveva il suo perché. #JerryLewis nasceva 100 anni fa. Re per una notte (1983) - TokyVideo https://www.tokyvideo.com/it/video/re-per-una-notte-1983
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Ho una fame nervosa che sto per urlare. Credo che potrei addentare il braccio di qualcuno.
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Benvenuto Peter, speriamo che te ne torni a casa in fretta... e magari freddo.
