Dmx Signal Monitoring; Test Sequences; Manual Control - Martin MAC Viper Wash User Manual

DMX signal monitoring

The MAC Viper Wash provides data on the DMX signal it is receiving in the DMX LIVE menu. This
information can be useful for troubleshooting control problems.
RATE displays the DMX refresh rate in packets per second. Values lower than 10 or higher than 44 may
result in erratic performance, especially when using tracking control.
QUALITY displays the quality of the received DMX data as a percentage of packets received. Values much
below 100 indicate interference, poor connections, or other problems with the serial data link that are the
most common cause of control problems.
START CODE displays the DMX start code. Packets with a start code other than 0 may cause irregular
performance.
The remaining options under DMX LIVE display the DMX values in a range from 0 - 255 that are being
received on each channel. The DMX channels displayed depend on whether the fixture is in 16-bit or 16-bit
extended mode and depend on the hardware configuration (values are shown for internal barndoors, iris
and color wheel channels if these effects are installed in the fixture).

Test sequences

TEST activates effects in sequence, allowing you to test all effects, pan and tilt movement only, or effects
only (i.e. without pan and tilt movement) without a DMX controller:
• Select a test type and click on the jog wheel to start the test.
• Click on the Escape button to stop the test.

Manual control

The MANUAL CONTROL menu lets you reset the MAC Viper Wash, strike or douse the lamp, and operate
the fixture without a DMX controller. To execute commands in the MANUAL CONTROL menu, select a
menu item for the effect that you want to control, then enter a value from 0 to 255 to apply a command. The
menu items and values correspond to the commands listed in the DMX protocol on page 19.
12 MAC Viper Wash User Guide