Setup
Page 38
ORB Operating Manual – Issue 1.0
Channel View
This patch view shows the fixture type, fixture number and
parameter (eg Gobo1<>) patched to each DMX address in each of
the DMX universes, for example:
Figure 27 – Channel View
16-bit channels
The DMX protocol defines each of the 512 channels as an 8-bit level
between 0 and 255. This is sufficient for the majority of parameters
(for example, a gobo wheel may only have 7 or 8 different gobos to
select from, so 256 possible values is plenty) however in more
advanced control equipment, 256 values is not enough so two
channels are linked together to create a 16-bit channel.
These channels are paired together internally and processed as a
signal control channel. When output, the Least Significant Byte
(Fine channel) is faded between 0 and 255, then returned to 0 as
the Most Significant Byte (Course) is increased by 1, then the
pattern continues. This process gives 65536 possible values for a
channel instead of the 256 possible using 8-bit control.
In Channel View, the acronyms MSB and LSB are used to describe
Most Significant Byte (Course) and Least Significant Byte (Fine)
channels of 16-bit parameters.
Summary of Contents for ORB
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