High End Systems Technobeam manual General Information, Rounding Conventions, Bit Control

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.

Technobeam® User Manual DMX Protocols A-1