ETC Eos v1.3 - Manual (Page 19)

Introduction 5
Parameters and Parameter Categories
Eos divides fixture parameters into four major parameter categories: Intensity, Focus, Color, and
Beam. These are the parameters in each category:
• Intensity . . . . . . . . . . Intensity
• Focus . . . . . . . . . . . . Pan and Tilt
• Color. . . . . . . . . . . . . All color parameters (such as color wheel, CMY, scrollers, and
so on).
• Beam . . . . . . . . . . . . Any parameter not covered in the other categories.
Tracking vs. Cue Only
Eos is, by default, a tracking console. This means two things. First, tracking relates to how
cue lists are created. Once data is in a cue list, it will remain a part of that cue list, at its
original setting, until a new instruction is provided or until it is removed from the cue list
using filters or null commands.
Secondly, tracking relates to how changes to cue data are handled. Unless otherwise
instructed by a Cue Only command, changes to a parameter in a cue will track forward
through the cue list until a move instruction (or block command) is encountered.
It is possible to change the default setting of Eos to “Cue Only”. This prevents changes from
tracking forward into subsequent cues, unless overridden with a track instruction.
Eos also has a Cue Only/Track button that allows you to record or update a cue as an
exception to the default setting. Therefore, if console is set to Tracking, the button acts as
Cue Only. If console is set to Cue Only, it behaves as a Track button.
Move Instruction
A move instruction is any change to a parameter from its previous stored value. A change
to a channel’s intensity is a move instruction. A change to a channel’s pan or tilt is a move
instruction. A change to a channel’s color mixing is a move instruction, and so on.