Expand description
Color (type 63) and Color Temperature (type 64) objects, added by Addendum 135-2020ca (Clauses 12.X and 12.Y, Tables 12-X and 12-Y).
A Color object holds a CIE 1931 xy colour, a Color Temperature object a
correlated colour temperature in kelvin. Both take a typed
BACnetColorCommand as Color_Command, checked against the operations
each allows (see command), and carry it out (#1474): fades and ramps
move Tracking_Value to the new Present_Value over time, with In_Progress
showing which, steps change the value at once, and STOP ends a fade or
ramp where it stands (see engine). A Present_Value write moves the
output as the object’s Transition says.
Neither object has a priority array, and their property tables have no Status_Flags, Event_State, Reliability or Out_Of_Service, so the objects serve none of them. Value_Source, once tracked, names the last writer of Present_Value (#1552).
Structs§
- Color
Object - BACnet Color object (type 63).
- Color
Temperature Object - BACnet Color Temperature object (type 64).