According to the BACnet protocol documentation:

Indicates the time window used for load shed accounting. The units for Duty_Window are minutes. Duty_Window is used for performance measurement or compliance purposes. The average power consumption across a duty window must be less than or equal to the requested reduced consumption. It is a local matter whether this window is fixed or sliding. The first Duty_Window begins at Start_Time. If a shed request is received with no value written to this property, Duty_Window shall be set to some pre-agreed upon value. If a load control command has been issued, and execution of the command has completed, Duty_Window shall be reset by the device to this pre-agreed value.

Property dutyWindow of object loadControl can be read and written using a single IOTag.

Text Parameters

Numeric Parameters

Tag Value

A 32-bit unsigned integer.