The ___ contain(s) schedules to determine when to operate systems based on occupancy.

• A. occupancy sensors
• B. HMI
• C. BACnet
• D. supervisor controller

Answer: (D)

The schedules that determine when systems operate based on occupancy are managed by the supervisory controller. This central controller runs the main control program and stores the occupancy-based schedules, coordinating with field devices to execute the desired on/off or dimming sequences. It uses inputs from occupancy sensors to decide whether to run HVAC, lighting, and other systems according to the programmed occupancy logic.

Occupancy sensors provide the data that suggests a space is occupied, but they don’t store or run the schedules themselves. The human-machine interface is for operators to monitor and adjust settings, not to hold the automation schedules. BACnet is the communication protocol that allows data to move between devices and controllers, but it doesn’t inherently contain the occupancy schedules.