The bridging allows optimum energy and comfort control in large buildings, using a single, cohesive control system with embedded buildingwide control strategies.
The lower cost and increased functionality of combining powerful ddc microprocessors with standard communication protocols is resulting in the componentization of controls for the hvac industry. Field devices that were traditionally supplied by the control vendor are now appearing as component controllers as part of each hvac device. This trend is just beginning, but is destined to grow rapidly in the next few years.