4 Ion Operations Manual
Important Concepts
Before using Ion, you should read and familiarize yourself with the concepts defined below. These
concepts are important for understanding both how Ion functions as well as how you, as a
programmer, will interact with Ion to produce a successful show.
You will find that understanding these terms and concepts will improve your efficiency with Ion.
Channel = Fixture
A fixture is defined as a group of related addresses that together control a device. An
examples of a fixture would be an ETC Revolution. This moving light contains 31 attributes
that together allow you to perform various functions such as pan and tilt. Each of these
attributes is addressed by a different output.
Ion treats fixtures and channels as one and the same. Unlike former ETC consoles where
a fixture occupied one channel for each parameter, Ion assigns each fixture a single
channel number. Individual parameters are then associated with that channel as additional
lines of channel information.
Output
Outputs are the method by which level changes to channels are conveyed to attached
devices. These outputs are patched to channels. In its simplest form, an output is data
signal sent from the console to turn on a light or modify a fixture attribute.
Record Target
A record target is any of numerous data locations that you can store data using a [Record]
or [Record Only] command. Examples of record targets are cues, palettes, presets, and
macros.
Move Instruction
A move instruction is any change to a parameter from its previous stored value. Any change
to a channel’s intensity is a move instruction. Any change to a channel’s pan or tilt is a move
instruction. Any change to a channel’s color mixing is a move instruction, and so on.
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