So the
Wybron CXI has a Move Speed option and a Time-to-Destination option. How do they relate? You have the choice between LOW and HIGH for MvSp; and ON and OFF for TmCh. Let's assume the the TmCh is OFF for starters, how does the setting of the MvSp affect the speed of the
scroller? How does it relate to the actual timing of the
cue? In other words, if the
scroller needs to move in a
cue that has a attribute
fade time of 10 seconds, how does each MvSp affect this timing? Shouldnf't it be 10 seconds, regardless? Then, how does the TmCh add into it? If you are using the Time-to-Destination feature, does it override
cue fade times? Is it a sort of highest (or lowest) takes precedence kind of thing? Does it depend on the
desk?
I
load in shows with CXIs quite frequently and I find that nobody
really understands all of these intricacies, including me. Who can enlighten me?
Seeing how this thread has had no replies thus far, I will take a stab at it. I preface this post with the fact that I have only seen these units at tradeshows, I do not own one, nor have I programmed one in real life. I am basing my information on the
manual and general understanding of
DMX devices. [Insert Grain of Salt Here]
Starting off with the
manual:
Page 19 said:
Gel Move Speed Options:
High - default
Low
Time/Dest - control remotely via assigned
DMX channel
This leads me to believe that you have a choice of either High, Low, or Time To Destination (TTD). In my reading of the
manual, that means that you can set the speed that the scrolls move to a predefined high speed (set by default), a predefined low speed, or a definable speed using an additional
DMX address.
Page 26 said:
TTD Info (Time to Destination information)
A.
Gel Time to Destination
DMX Address — use the [UP] and [DOWN] buttons to select the desired
DMX address.
i.
If this function is enabled, this feature controls the time it takes to
arrive at the destination gelstring position after the new destination
command is sent.
ii. The
DMX address for this feature can also be set at the alternate
display “
DMX Address:
DMX Addresses: Time/Dest Addr”.
iii. For quietest
gelstring movement, select the longest time possible.
iv. Information Only
Displays
DMX levels to be used at the lighting
console to program
specific timings using
Gel Time to Destination.
[
Emphasis added by starksk]
Looking at the first
point (emphasized for clarity) it would appear that the scroll will attempt to use the defined timing (or High/Low timing) to move the scroll after it has received a new
level. This leads me to believe that if you set the
scroller to a color in a
cue using a zero time for this example, and have not changed this speed from the default "High" setting then it will try to scroll as fast as that defined "high" setting allows to get to the new color. If you are using "low", then it will take a longer time from when you sent that command for the scroll to reach the new frame because it is using the "low" speed timing. If you have TTD enabled, it will take the amount of time that you set for it to reach the new frame position.
Because the
fixture seems to be doing the calculations of time needed to move based on these settings, I would expect that each change in a value would follow those same guidelines. Thus if your example of a 10 second color
fade were used, I would expect that each step of the
fade would be affected by the speed setting. A speed of High would most likely result in the
unit attempting to get to each new
DMX value with no delay (and probably the more accurate
fade to your
console's timing). The Low speed would try to slow each step of the
fade and take the predefined amount of time to get to each step, and the TTD would do the same with you having the ablilty to control that timing.
In a theatrical setting where a
console is providing timing, I would suggest that you not use the move-speed settings unless you are programming to another device that is only going to
play back snapshots of each
cue. Alternately, you could use the on-board timing and set your color attribute times to 0 on the
console.
I would expect to see the most benefit of the move speed settings in a situation where you are using a device such as a Preset-10 or other device that plays back static looks with little to no
crossfade timing. There you might want to control the speed of the scroll at the
unit because you are not providing timing externally.
Finally, to add more confusion to the mix, the
manual has conflicting reports on timing settings for TTD. I would tend to believe the chart on
page 19 over the chart on
page 26, but I will let you be the judge. Both are below:
Page 19 said:
TIME TO DEST INFO ONLY
95-100%: Hi
90-94%: Low
85-89%: 80 sec
80-84%: 70 sec
75-79%: 60 sec
70-74%: 50 sec
65-69%: 40 sec
60-64%: 35 sec
55-59%: 30 sec
50-54%: 25 sec
45-49%: 20 sec
40-44%: 15 sec
35-39%: 10 sec
30-34%: 9 sec
25-29%: 8 sec
20-24%: 7 sec
15-19%: 6 sec
10-14%: 5 sec
5-9%: 4 sec
0-4%: ASAP
[TD]
Page 26 said:
CXI IT
Gelstring Time Table
DMX Level: Time to Destination
0-4% As Soon As Possible
5-9% greater of: 1 sec or ASAP
10-14% greater of: 2 sec or ASAP
15-19% greater of: 3 sec or ASAP
20-24% 4 sec
25-29% 5 sec
30-34% 6 sec
35-39% 7 sec
40-44% 8 sec
45-49% 9 sec
50-54% 10 sec
55-59% 11 sec
60-64% 12 sec
65-69% 13 sec
70-74% 14 sec
75-79% 15 sec
80-84% 16 sec
85-89% 17 sec
90-94% 18 sec
95-100% 19 sec
[/TD]
______________
~Kirk