Dimming Curve

A "Dimming Curve" refers to a translation between input level and output level.

With the inbuilt load profiles, dimming curve relationship is linear. However, with some types of load dimming curve will result in a non-linear change with perceived brightness as you dim. In such case, a custom dimming curve can be defined to address.

Example: At low conduction time, a small change in conduction time may result in a large change in brightness.
Since C-Bus ramp rates give a constant rate of change of level and therefore conduction time, this is perceived as very rapid dimming at the low end and slower dimming at the high end. Using a dimming curve with a flatter slope at the bottom end results in smaller changes in conduction time in the lower dimming range, giving more control.

NOTE: The Dimming Curve translation is applied after Min/Max scaling, the Min/Max Scaling feature is effectively just limiting the range rather than altering the space of the curve by squashing it over a smaller range.

Min/Max Scaling

The Min/Max scaling feature takes the input control level range of 1-255 and scales it to the range Min-Max.

An input control level of 0 is always 0 (off)
An input control level of 1 is scaled to Min
An input control level of 255 is scaled to Max

NOTE: Since the adjustments related to load limits are handled by the Dimmer Load Profiles, the primary use case for Min/Max scaling is limiting the control range where a higher minimum or lower maximum is desired.

For example, the kitchen and bedroom can use the same load profile since the load type is the same, but can adjust the range using the Min/Max scaling instead.