ETC Congo Family v6.4.0 - Manual (Page 461)

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Channels - 8 bit 256 Step Levels
You can work with 8 bit 256 step levels.
Action Key Feedback
256 bit step level [#] [.] &
[@LEVEL] Holding the decimal
while pressing @LEVEL
sets the level in 256 bit
steps.
Increase 1 bit [.] & [+%] As long as the decimal
point is held, pressing
+% will add one bit step
to the selected channels
Decrease 1 bit [.] & [-%] As long as the decimal
point is held, pressing
+% will subtract one bit
step from the selected
channels
Show 256 bit levels [FORMAT] &
[[@LEVEL] Toggles the view
between decimal and
256 bit levels
EXPLANATION
Levels for channels controlling dimmers are traditionally set from 0-100%. The internal
resolution of DMX 512 however, is about 2.5 times greater, from 0 to 255. You may want to
use this higher accuracy when you are setting values for mechanical dimming devices.
The board will display the %-value rounded off to the closest value. (1.4% will be displayed
as 1% and 1.6% will be displayed as 2%)
To convert between 0-100% and 0-255 raw DMX levels, you divide the % level with 0.39
(100/255=0.39). For example: 50% / 0.39 = 128 bit steps (actually 128.21)
The other way around you multiply by the same factor of 0.39. Example: 129 x 0.39 =
50,31%
NOTE
256 bit step levels are not displayed on the channel screen, but are
stored with the show and exported in ASCII Light Cues.