The advent of electromechanical controls in the 1970s, analog controls in the 1980s, direct digital control (DDC) in the 1990s, and complete building control integration in the 2000s has progressively ...

Direct digital control is used to establish electronic control of the heating, ventilation, and air conditioning systems on campus. Direct digital control systems also allow the consistent use of time ...

The vast majority of commercial buildings today include direct digital control (DDC) systems. These systems are also known by other names, such as facility management systems (FMS) and building ...

ATLANTA - At a minimum, direct digital control (DDC) systems control comfort in buildings. But a networked, programmable control system can do much more, according to Jim Coogan, P.E., Siemens ...