Generally, the only time I’ve ever seen DMX in use is for stage productions ... with potentiometers connected to the system via CAT5 cabling. The POTs send 0-10v up the line to the dimmers ...
As of now, the robots are all individually addressable over an RS485 bus, and we use the DMX protocol over a CAT5 cable to send commands. If you aren’t familiar with it, DMX is used in show ...