Distributed intelligence is the best way to get all of the reliability of wired communication to control the shading system, without the expensive and laborious task of installing wiring and conduit home-runs back to a central location in a structure.
The system uses industry standard wiring and cable, so not only will this system save on the amount of copper wire and conduit needed, but also the wiring and wiring practices are non-proprietary and familiar to electricians and general contractors.