The exemplified methods and systems support shared output drivers or shared control setting drivers across separate control devices for a redundant system of 1, 2, 3, or more control devices in simplex, dual, triple redundancy, and etc. Digital communication links between the control devices are implemented to facilitate sensing, from other control devices, of operation states (e.g., amount of contribution by the control devices to the shared output) and on-line/health status of other control devices in the redundant network.