Random Glitches in DMX Output

Sunlite Suite 2 is a complete re-design of Suite 1. Please discus any issues here

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BrianSimons
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Random Glitches in DMX Output

Post by BrianSimons » Tue Sep 10, 2013 12:02 pm

Using both the most recent Official Release of Suite 2, and the September Beta release I get random glitches in the DMX Output. I have a few Elation Event Bar's connected. The Event Bars have four pin spot moving heads. Every 5-10 seconds or so they rapidly move from their set position, and then move right back again. The movement lasts less than a second or so.

I don't believe it's a drop of the DMX signal, because I have the units set to remain in their last known state in the event of a signal loss. So for them to move randomly, the controller must be sending information to do so.

I'm using a laptop with Windows 8 on it. I noticed this at my first event using Suite 2, where the laptop was connected to DJ hardware too. So I brought it in and connected a single Event Bar, with no other USB devices hooked up, no other software running, etc. The glitch still happens. I guess the good news is that it rules out lots of cables and other possible issues, and means the problem is repeatable.

Bad news is, I have no clue how to fix it. Does anyone know if this is a known bug that's being addressed. Or could I have a defective hardware unit?

I'm going to try a few more tests, like using another computer, different OS, etc. But if you see this and know more I'd appreciate any help.

Thanks.

simonB
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Re: Random Glitches in DMX Output

Post by simonB » Tue Sep 10, 2013 3:16 pm

Open tools.exe and move the faders on the test tab. Do you still have the same problem? This will help us find out if it's a hardware or software related problem.
Simon
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BrianSimons
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Re: Random Glitches in DMX Output

Post by BrianSimons » Wed Sep 11, 2013 12:43 am

Hi, I just tried out the Test controls in Tools, and it has the glitch there as well. When I use these lights for events the DMX channel starts at 400. I don't know if this is helpful or not, but when I changed the unit to DMX address 1 and ran the test - it would have the glitch, but much less frequently, and the lights don't stray as far. I then put it back to 400, and used the Test again - and it seemed to have more frequent sporadic behavior, and the random movements were more pronounced.

The details on my Hardware:
Product Code: 40081
Firmware: 1.20
SIUDI-7A (1024)

Let me know what you think.

Thanks

hsteppke
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Re: Random Glitches in DMX Output

Post by hsteppke » Wed Sep 11, 2013 6:17 am

That sounds more like a DMX signal timming issue, i had similar for some cheap LED Bars.
If i remember correctly (it was using on an E:Cue Interface) i lowered the refresh rate of the Signal and increased the gap between each cycle.
Together with terminating the DMX line correctly it solved the issue.


Holger

BrianSimons
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Re: Random Glitches in DMX Output

Post by BrianSimons » Wed Sep 11, 2013 12:37 pm

Thanks Holger, that corrected the problem. I changed the timing settings to the Preset for the slowest/most compatible, and glitches are gone. Sweet.

Thanks,
Brian

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