User Manual

Operating Reference
Scheduling
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This section provides background information on Schedules of Desigo CC. For
related procedures, see the step-by-step section.
3.4.1 BACnet Schedules
You use BACnet scheduling to automatically command points at prescribed time
intervals. You can create daily or weekly schedules for BACnet field panels. Each
BACnet panel stores its own calendar and schedule objects, and a BACnet panel
can store and run multiple calendars or schedules at the same time. Because
BACnet schedules reside in and are executed by field panels, they run even if the
management station they are associated with is not running. BACnet schedules
handle only BACnet objects (management station schedules can handle both
BACnet and non-BACnet object types).
You can also configure commands to control BACnet objects related to your
schedules. For example, you want to create a command that turns lights on and
maintains room temperature at 72°F (22.22°C) when the room is occupied. When
the room is unoccupied, the command would turn lights off and maintain the room
temperature at 65°F (18.33°C). In this scenario, you could create a command with
an entry for Occupied/Unoccupied, save it, and then drag it from System Browser
to a schedule of your choice. The schedule will determine what time the command
executes, the start and end dates, and the frequency of repetition.
BACnet calendars allow you to override a scheduled event. In this sense, you can
consider them as exception schedules, consisting of dates only. When you create
a calendar, you can choose specific dates (January 15), a date range (August 1 –
31), or a week and a day you want the exception to run (third week of the month,
on Wednesday). All calendars are associated with a schedule. If you want to
reduce energy costs in your building during company holidays, for example, you
could create a holiday calendar. On these days, your calendar might command the
system to reduce the output of heating or cooling systems when the building is
unoccupied.
Values are displayed as per value scaled units (if configured). For more
information, see Value Scale Units.
BACnet Schedule Workspace
This section provides an overview of the BACnet Schedule workspace.