[cctalk] Re: Scada computers and remote terminal units

On 7/24/25 23:09, Devin via cctalk wrote: pdp 11 and vax systems. I have decided to pivot my career to scada syatems. The company i am with has some interesting stuff that goes pretty far back. Our custom in house tech is a plc pump controller with a radio connection for data logging and control. Pretty cool, 8051 based, with a version of basic in rom that has scada functions added. The backend servers are just linux systems, although in a modular backplane for easy replacement. Are there other historic scada system computers or technologies that are similar, easily found on ebay for example? how it would be used remotely in the field, as a remote Allen-Bradley made a bunch of SCADA gear that was used in power substations. I think theirs MIGHT have been the one that was responsible for the Y2K scare, but it might have been somebody else's unit. Also, way back, there was a case where a SCADA manufacturer thought some of their gear was being bought for the trans-Siberia pipeline, and couldn't be sold for that under trade restrictions. Somebody at that company got in touch with a contact at the CIA, and asked if they wanted to insert a "feature" into those units. They put in a time bomb that was essentially the same as the Y2K shutdown, and blew up the entire pipeline when all the valves slammed shut at the same time. This info was reported by the famous Jack Anderson in the Washington Post. Jon