Adjusting Settings Via Dmx; Resetting; Lamp On / Off; Illuminating The Display - Martin MAC Viper Profile User Manual

Adjusting settings via DMX

Certain fixture settings and parameters can be adjusted from the DMX controller on the fixture control DMX
channel 26 in basic 16-bit mode or channel 29 in extended 16-bit mode.
Commands sent on the fixture control channel override any settings entered in the fixture's onboard control
menus.
To help you avoid accidentally applying a setting that may disrupt a light show, for example, most of the
commands must be held for a certain time before they are applied. For example, the command that turns off
the display illumination must be held for one second to activate it. The command that resets the fixture must
be held for five seconds to activate it. The times required to apply DMX commands on the fixture control
channel are listed for each command on page 28 in the DMX protocol.

Resetting

Either the entire fixture or individual effects can be reset to their initial positions. Resetting individual effects
can allow on-the-fly recovery if an effect loses its correct position, for example, without having to reset the
entire fixture.

Lamp on / off

The lamp can be struck and doused from the DMX controller.
A peak of electric current that is many times the operating current is drawn for a fraction of a second when
striking a discharge lamp. Striking many lamps at once may cause a voltage drop large enough to prevent
lamps from striking or draw enough current to trip electronic circuit breakers. If sending lamp-on commands
to multiple fixtures, program a sequence that strikes lamps one at a time.

Illuminating the display

The fixture's display panel can be brought out of sleep mode with a DMX command. This makes it possible
to read the fixture's DMX address while the fixture is installed in the rig.
After being illuminated in this way, the display will return to sleep mode according to the setting entered in
the onboard control menus.

Control menu setting overrides

The following fixture settings can be adjusted via DMX, overriding the settings entered in the onboard
control menus. See under "Control panel menus" on page 30 for details of these settings.
• Dimming curve
• Pan and tilt speed
• Effect shortcuts
• Zoom/focus linking
• Ballast output
• Beam smoothing
• Auto blackout
• Calibration offsets
16 MAC Viper Profile User Guide