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Joined 3 years ago
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Cake day: June 5th, 2023

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  • Um, I mean the boiler(s) itself are a small part of it. It’s all the other stuff. I am not a coal expert by any stretch, but if you think of the signals required just to convey coal, probably dozens or more of drives with run/stop/various errors/temperature/current/voltage/perhaps VF, plus all the sensors you need to use motors like that with (presumably bucket conveyors?) like slip, like explosion disk detection from dust. Not like all of those have to be present, but every step has so many signals.

    Plus then you’ve got a steam turbine and a switchyard, plus all the plant utilities like process heating and cooling water, compressed air, steam turbine makeup water, etc

    Nowadays you do IO to remote racks that are close to devices (like valves/motors/etc) then use Ethernet to make it go further. Pre ethernet there were typically proprietary cables for the same, but thankfully that’s a thing of the past

    But something like I mentioned with a motor drive having all those signals, yeah it’s typically just an Ethernet cable + power + estop (usually hardwired still). So maybe 40-50 wires down to 5-8





  • I used to work at a really shitty metal factory as an engineer. I’d have to help get the lines going again after our weekly shutdown, and it was always a 24-30 hour work day, once per week. So 5 am until 5-10 am the next day. Very little for breaks (though they did feed us), almost never any sleep. That drive home after was harrowing. It probably would have been safer if I was drunk

    For all my hard work and dedication I got rewarded with fucking nothing because that’s how capitalism works