Aircon units controllable via wire

I’m about to renovate a new place and among other things I’ll be replacing all 6 AC units there & completely redoing all electrical wiring.

So since I have this rate opportunity to put new metal into walls, I wonder, are there AC units that I can control via wired connection? And if so, what bus/protocol do these usually use?

(I’ve tried controlling ACs using an IR emitter in the past, but that always feels a bit wonky and a like a bit of a hack.)