Changing Calibration Offsets Using Dmx - Martin MAC Viper Performance User Manual

Changing calibration offsets using DMX

The Fixture control/settings DMX channel allows effects to
be calibrated by changing their factory default offsets from
the DMX controller.
To set an effect offset:
1. Set the effect to a DMX value from 0 to 255 on its own
DMX channel (for example, set Cyan to 192 on channel
4).
2. Send a 'Store' command for the effect on the Fixture
control/settings channel.
The MAC Viper Performance now reads the value on the
effect channel (192 for Cyan in the example above),
translates it to an offset value of between -5% and +5% as
shown in Figure 7 (+2.5% Cyan offset in the example
above) and stores that offset in memory.
See the Fixture control/settings channel on page 24 in the
DMX protocol for details of the effect offsets that can be
set using this method.
Effect offsets stored in memory are not affected by
powering the fixture off and on or by updating the fixture
software. To return all offsets to their factory defaults, send
a DMX value from 245 to 249 for 5 seconds on the Fixture
control/settings channel or apply LOAD FACTORY
SETTINGS in the FACTORY SETTINGS menu in the
fixture's control panel.
16 MAC Viper Performance User Guide
255 +5%
192 +2.5%
128
64 -2.5%
0 -5%
Effect channel
DMX value
Figure 7: Offset values
0
Offset
value