What is the primary function of BACnet properties?

The primary function of BACnet properties is to serve as the means by which objects are monitored and controlled within a building automation system. BACnet, which stands for Building Automation and Control Network, provides a standardized communication protocol that enables devices and systems such as HVAC, lighting, and security to converse and share information seamlessly.

Properties in BACnet define aspects of the objects involved, such as their states, status, and behaviors. Through these properties, operators can gather data from various devices, and they can also control them, for instance, adjusting temperature settings or turning lights on and off. This monitoring and control capability is essential for efficient building management and energy optimization.

In contrast to the correct option, the other choices represent different functionalities that are not the central role of BACnet properties. Displaying data visually refers to user interfaces or dashboards that might utilize BACnet data, secure data encryption is about protecting information during transmission rather than monitoring or control, and power consumption metrics are specific measurements that might be a property of certain devices but do not encompass the comprehensive role of BACnet properties in automation.