[z3n]

Everything operates with essentially phone calls at super high speeds in scan times." IT professionals will be the first ones to scold you not to operate mission critical systems this way. Hard wire everything (with redundancy where possible) and go solid state. Moving parts need maintenance and have unpredictable life spans

[blackdog]

Cost driven industrial systems. Right now we are facing trans oceanic freighter ships being built to be unmanned sea going super-freighters. All run by GPS and autopilot systems. Yes, sail wireless. By the way, the industrial controls produced today are all IP Address controlled. Each axis of movement and speed is controlled by what is a network connection, and is purposely designed to be internet accessible. Just hop in with Studio 5000-RS Logix or similar OEM Platforms like ABB or Siemens.