4 ms·
That's waaaay too broad a grouping. You're thinking of PC's, basically, in one form or another (or their modern replacement, mobile devices). Industrial automa
by ChrisC-POV 2y ago
That's waaaay too broad a grouping. You're thinking of PC's, basically, in one form or another (or their modern replacement, mobile devices).
Industrial automation and hard real-time embedded devices like those that control surfaces in Fly-By-Wire systems are out there and with those it's not a matter of "throughput" but a matter of timeliness.
I did a major project with QNX about a decade ago where the maximum allowed latency between any device on the (fiber-optic) network being asked a question by the master controller and the reply - then the processing of the reply - was less than 1 millisecond, full stop.
Come in late and most of the time the sky doesn't fall in. But on the occasions that it does, you potentially have a 4 meter wide ribbon of red-hot steel flying out of the stands at 50mph. Or you blow one of the transistors that controls the 10-20 megawatt DC motors in each stand. (These "transistors" were boxes about 7' tall, filled with oil, and cost northwards of $200k).
Sometimes it just doesn't pay to be late.
- CoastalCoder 2y agoWhat a terrifying and cool project! Can you say what kind of shop / machine it was for?
- ChrisC-POV 2y agoIt was a hot-strip mill; this video shows the general gist of it: <https://www.youtube.com/watch?v=13dUL9OQFvw&t=15s https://www.youtube.com/watch?v=13dUL9OQFvw&t=15s> (tho the ones I worked with were all made by GE).