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KnowledgeBase: Express and Expression Dimmer Doubling with a Moving Light Patch

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First published by:
Kelsey Aleckson
on 06-17-2009
Last revision by:
Kelsey Aleckson
on 07-09-2009
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KnowledgeBase: Express and Expression Dimmer Doubling with a Moving Light Patch This page is locked to prevent further edits

Question

Can you patch a moving light onto a dimmer doubled port?

Answer

If the port has been set to dimmer doubled, in setup, then the console will not allow you to patch a moving light to that port.

The fixture needs to be patched to a different port or universe of DMX.

Recent Comments

By: SBC Posted on 06-14-2010 12:50 PM

The port can be reset to standard.  Then you have to "hunt" for the b side dmx addresses.  1B = 257 ect.  We created a spradsheet just for this purpose for patching non ETC consoles.  Depending on your dimmer count, use of dimmer doubling, quantity of movers and their channel counts, you may run out of dmx adresses on that port.

You will notice when you dimmer double a port it compresses the ports that follow it numerically. Most systems have dimmers on port 1 and distributed dmx outs on port 2.   This can make patching movers a bit of a pain.  Depending on which console you are using, the fixture patch gives you Port / DMX # wich differs from the conversion (+ 512) in the regular patch screen.  e.g. I am running an Expression 3 with the ports assigned as noted above.  Port 1 is dimmer doubled therefore port 2 starts at 257 and port 3 starts at 769.  

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