If you were to trace building automation systems (BAS) to their roots in the 1960s and '70s, you would see their main purpose was the management of energy consumption. In fact, "energy-management systems" (EMS) was the common term for these systems when I entered the controls industry during the late 1980s. The more sophisticated controls have become, the more we have taken the energy-management function of building automation for granted and the more control-system vendors, in ...

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