Does a BACnet system provide better building HVAC control than conventional DDC systems?
Not necessarily. Because BACnet is basically a system of communication rules for building automation equipment, it will not automatically provide better control. However, what makes the difference in how well any given system performs is how carefully, accurately and to what sophistication data is acquired, manipulated and distributed to the controlling devices. The BACnet standard is designed to be open for future expansions, even to the point of allowing devices to contain exclusive proprietary functions, yet overall, retain their BACnet conformance. For example, manufacturer A can provide a complete BACnet system fully capable of accepting and integrating devices from manufacturers B-Z; however, manufacturer A’s system may also include a few exclusive enhancements that would only be accessible by other manufacturer A products. This by no means excludes manufacturers’ B-Z equipment from working on manufacturer A’s BACnet system. It simply means that manufacturer A has added some addi
