High End Systems Roadster Orbital Head System - Manual (Page 41)

Chapter 4:
DMX Programming
DMX Programming Terminology
A Parameter (construct) is a fixture attribute that can be controlled to modify the light beam
in terms of color, beam quality and pattern, intensity, or focus (position). To program fixtures,
DMX values are assigned to each of the fixture’s parameters according to that fixture’s DMX
protocol.
A cue (sometimes referred to as a scene or look depending on the controller used) is one set
of attribute options. Combining cues into sequences, assigning times and synchronizing
fixtures on a link are the basics of show creation. Using a DMX controller, a designer can
control all the fixtures on a link programming an unlimited number of sequences and their
associated timing.
DMX Parameters
Roadster Orbital Head Positioning
The Mirror1 and Mirror 2 parameters each use two channels for for 16-bit control of the
Orbital Head’s movement direction and speed. The Orbital Head positions the projected image
by independently moving the inner and outer mirrors on the Mirror Head. The inner mirror
(Mirror 1) maps to Pan on DMX control consoles and can move from 0°–270°. The outer
mirror (Mirror 2) maps to Tilt on DMX controllers and has a range of 0°–360°.
Focus
The Focus parameter uses two DMX channels to control the projector focus with 16-bit
accuracy.
Zoom
The Zoom parameter uses two DMX channels to control the motion of the projector’s zoom
lens with 16-bit accuracy.
Shutter
The Shutter parameter uses one DMX channel to control the projector shutter. A DMX value
< 24 closes the shutter. A DMX value > 231 opens the shutter.