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User Manual DMX Protocols A-1
Appendix A
DMX Protocols
General Information
The information in this section applies to all of the protocols listed in this
Appendix (except where noted).
Rounding Conventions
The values displayed in the columns “Value (dec.)”, “Value (%)” and “Value (hex)”
in the following tables may vary slightly depending on your controller’s
rounding convention.
16-Bit Control
The full protocol for Technobeam gives you 16-bit control over the positioning
of the mirror and the angular position of rotating lithos. However, you always
have smooth, 16-bit control over
movement
, even if you choose the reduced
protocol—which gives you 8-bit control over mirror and litho positioning.
The full protocols give you two channels of position control: one channel sets
the
most significant
8 bits (
coarse adjustment
), while the second channel sets
the
least significant
8 bits (
fine adjustment
) of a 16-bit value. The high order
bit gives you 256 times the number of litho position stops (65,536 for 16-bit
compared to 256 for 8-bit).
Macros
Technobeam full protocol offers 28 selectable macros to simplify
programming. A
macro
is a set of preconfigured constructs you can use with
any other combination of constructs you want, except Laser Aiming Device
constructs. Because the Technobeam Laser Aiming Device shares the same
DMX channel, you cannot use both macros and the Laser Aiming Device at the
same time.