14
MAC 401™ user manual
Whether one or two LED modules are installed on a fixture, all modules’ DMX addresses must be set
manually using the
ADDR
menu for that module. You can set the address of each module on the rear of the
head immediately after the channels used by the module on the front of that head, or group similar modules
together, for example, or set addresses according to any other preference. Table 2 and Table 3 on the
following pages can help you determine the number of DMX channels used by a module, if you are in any
doubt.
DMX control modes
The MAC 401 can be set to various combinations of DMX control modes using the
DMX
-
PSET
menu.
Different modes are available for RGB Zoom and CT Zoom LED modules. See “DMX protocols” on page 25
for details of the DMX commands available in the different modes. The MAC 401 automatically recognizes
which type of LED modules are fitted to the front and rear and lists only the DMX modes available for those
modules:
RGB Zoom module control modes
If an RGB Zoom LED module is installed, it can be set to six DMX control modes in the
DMX
-
PSET
menu:
•
RAWX
– Uncalibrated RGB color mixing with dynamic effects available
•
RGBX
– Calibrated RGB color mixing with dynamic effects available (this is the default control mode
setting)
•
HSX
– Hue, saturation, value color control with dynamic effects available
•
RAW
– Uncalibrated RGB color mixing with no dynamic effects available
•
RGB
– Calibrated RGB color mixing with no dynamic effects available
•
HS
– Hue, saturation, value color control with no dynamic effects available
CTC (color temperature control) is available in all six modes.
CT Zoom module control modes
If a CT Zoom LED module is installed, it can be set to two DMX control modes in the
DMX
-
PSET
submenu:
•
CTX
– Warm white, cold white, CTC with dynamic effects available (this is the default control mode
setting)
•
CT
– Warm white, cold white, CTC with no dynamic effects available.
One DMX channel between the warm white and cold white channels on CT Zoom modules is left unused so
that RGB Zoom and CT Zoom modules use the same number of channels. This avoids the need to repatch
lighting desks if one type of LED module is replaced with another.
DMX channel requirements
The number and type of LED modules installed, pixel grouping and control mode determine the number of
DMX channels used:
• When two LED modules are installed, the DMX protocol for the module on the rear of the head does not
contain coarse and fine pan, coarse and fine tilt or fixture control channels. This module will thus require
five less DMX channels than if it was installed on the front of the head.
• The RGB Zoom module uses four channels per pixel group to control Red/Green/Blue/CTC
or
Hue/Saturation/Value/CTC.
• The CT Zoom module uses four channels per pixel group to control warm white/unused/cold white/CTC.
• No matter which LED module is installed and whether it is installed in the front or rear of the head, pixel
group setting
PGRP -
All
uses four channels, pixel group settings
2H
and
2V
divide the module into two
groups and therefore use eight channels, and pixel group setting
1
divides the module into four groups
and therefore uses sixteen channels to control color or color temperature. See “Pixel grouping” on page
13.
• Control modes that incorporate dynamic effects use eight additional DMX channels.
