Ethernet is Still Going Strong After 50 Years

nsaspook said:

Very old industrial systems that are running just fine after 25 years and won't be replaced until the factory burns to the ground or is closed.

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Yeah, that is what the refinery area operators said when I went to replace all of their circa 1940's stand-alone pneumatic controls with a computer driven DCS system with electronic transducers. It even had solenoid activated referee whistles soldered onto copper air tubing for alarm annunciators. They could not comprehend how in hell I could put 2 walls of panel gauges, chart recorders, and pneumatic controls onto a 15" monitor screen. "I don't know why they want to change something that worked just fine for 50 years". A few months after the upgrade it was "I don't know why they didn't do this years ago".