ENERGY MANAGEMENT CONTROL APPARATUS.

摘要

An energy management controller (20) communicates with remote stations (1-1 to 1-16, 2-1 to 2-16 etc.) by using three line pairs per group of remote stations (22, 24, 30; 22, 26, 32 etc.). Data transfers between the controller (20) and the stations in group 1, for instance, is over line pairs (24 and 30). Each station within each group counts clock bit transitions provided on clock line (22) to compile an ''address'' count. Each station is set to have a particular address count such that when the compiled address count equals the particular address count for that station, that station is automatically enabled to communicate data to the controller and receive commands from the controller.