RDM I/O card update problems

I upgraded my I/O card to enable RDM recently.  I can't pin it down, but I think it's causing signal problems.  For instance: I had about 40 Kino Image 87s in a rig.  They were all responding very slowly to commands.  Everything else in the rig responded normally.  When, finally, I changed my DMX signal rate to "slow" in the shell, the Kinos responded normally again, although they still displayed a blinking "dmx signal" light. (meaning they didn't have good DMX.  However, we checked the signal going into the chain of Image 87s, which was good.)

   More recently, I was doing a camera test, with just 1 VL3000, and a bunch of Chroma Q color blasts.  The color blasts were responding great, and all the non intensity perimeters of the VL3000.  However, the intensity parameter was having the same delay as the Kino Image 87s.  I never actually tried switching the DMX signal rate to "slow" on that occasion, because it wasn't critical.

    Today, I'm on a small stage with existing LED Spaceflights (unknown manufacturer).  I've taken control of those house spaceflights in conjunction with our installed conventional dimmer racks.  I'm regularly turing the spaceflights on and off for a cue.  Pretty much every time i turn them back on, they start flickering to some degree.  However, if i turn them off and on a time or two, they're fine....until I turn them off again.  I'm going to try the slower DMX rate at lunch, when I can go to the shell.

      Anyone else with these sorts of ghosts in the machine after upgrading the I/O board firmware?

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  • Have you tried disabling RDM and seeing if they react correctly without slowing down DMX. You will need to disable RDM in the network settings of your eos family console
  • I tried Disabling RDM, without slowing down DMX. It did not help. In the case of the LED Spacelights, neither slowing the DMX rate or disabling RDM helped with the flicker problem. I never sorted that one out. However, now on a later job, with Kino Image 85s again, the same response problem occurred.
    I rolled back the IO card firmware to 1.3, which sorted it out immediately. Now the Kino Image 85s respond perfectly in any DMX rate setting.
    There must be some glitch in the IO card firmware 1.4 (RDM enabled) and possibly my older ION console. (1st Generation, I believe. Windows XP, with Dual DVI Splitter.)
  • I'd recommend trying v2.3.2 and upgrading the firmware there. We added more RDM control in the shell (uncheck the Local I/O -> RDM checkbox there).

    RDM would cause a very persistent flicker and wouldn't tend to come and go like you describe. Have you tried other speeds besides Slow and Maximum? Slow actually can be too slow for some fixtures. Medium or Fast may be better for this situation.

    Another common question on DMX infrastructure - does the end of line have a terminator on it?
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  • I'd recommend trying v2.3.2 and upgrading the firmware there. We added more RDM control in the shell (uncheck the Local I/O -> RDM checkbox there).

    RDM would cause a very persistent flicker and wouldn't tend to come and go like you describe. Have you tried other speeds besides Slow and Maximum? Slow actually can be too slow for some fixtures. Medium or Fast may be better for this situation.

    Another common question on DMX infrastructure - does the end of line have a terminator on it?
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