haven't done it myself, have chatted with some friends who are process engineer's, and some tool and die folks. Each sub industry is completely different (so folding carton is much much different than the others), and the technology used on the floor tends to not be very recent. Most of which don't have easy ethernet access, you might have an aggregator or something but to get the raw data from the machines you're talking some custom protocol, or maybe even going spi/i2c/can bus/etc on the boxes themselves.
So it depends. My guess is it'd be doable with buy in from c-suite, plus good tech, plus a good size investment. My guess is the cost is hard to justify