Dmx Operation - Martin MAC 301 Wash User Manual

DMX operation

Warning! Read "Safety Information" on page 3 before installing, powering, operating or servicing
the MAC 301 Wash.
This section describes only DMX control features that require particular explanation. See "DMX protocol" on
page 19 for a full list of the DMX channels and values required to control the different effects. See "Effects"
on page 13 for a full description of the fixture's effects.
8- and 16-bit Standard and Compressed DMX control modes
The MAC 301 Wash has four DMX operating modes:
• Standard 8-bit uses 16 DMX channels
• Compressed 8-bit uses 12 DMX channels
• Standard 16-bit uses 19 DMX channels
• Compressed 16-bit uses 15 DMX channels
In Compressed modes, the color wheel, pan/tilt speed, effect speed and movement blackout channels are
not available. This means that color can be changed using the RGB channels only.
The 16-bit modes include the same control options as 8-bit modes but fine control of RGB is added on 3
extra channels.
Where fine control is available, the main control channel sets the first 8 bits (the most significant byte or
MSB), and the fine channel sets the second 8 bits (the least significant byte or LSB) of the 16-bit control
byte. In other words, the fine channel works within the position set by the main channel.
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