Concept
Schedule Handling
A schedule is a sequence that determines when essential events occur in a building management system: doors locked or unlocked, temperature raised or lowered, or equipment turned on or off.
For example, the lighting in an office building needs to be automated to conserve energy during non-business hours. To regulate the lights from Monday through Friday, you use a weekly event in a schedule that turns the lights on at 07:00 and switches them off at 20:00. If there are any non-routine events, such as holidays, you can use exception events to override the weekly event and turn the lights off.
Schedule Types
You can have three types of different schedules in the building management system: Analog, Digital, Multi-State or Enumerated. An analog schedule is used if the schedule controls a device that gauges the output in real numbers. A digital schedule is used if the schedule needs to control a device with two output states, such as On or Off. A multi-state/enumerated schedule is used if the schedule needs to control a device that has output states based on multiple states, such as low, medium, or high.
For more information, see Schedule Types .
Schedule Events
A schedule has two types of events: weekly events and exception events. Weekly events occur every week at specified times. Exception events occur when the schedule deviates from the weekly schedule, such as during holidays. Exception events override the weekly events when there is an overlap.
For more information, see Schedule Events .
Time Zones
Schedule times correspond to the local time on the device containing the schedule object.
Priority for Writing
Defines the priority at which the referenced attributes are commanded. The priority defined here corresponds to the Priority parameter of the Write Property service. 1 is the highest priority and 16 is the lowest.
For more information, see BACnet Command Priorities .
Schedule Types
Schedule Events
BACnet Command Priorities