Chauvet LED-RAIN36 user manual DMX Control Mode, Setti ng t he DM X ad dress

DMX Control Mode

Operating in a DMX Control mode environment gives the user the greatest flexibility when it comes to customizing or creating a show. In this mode you will be able to control each individual trait of the fixture and each fixture independently. The LED-RAIN36 uses 2 channels of control.

1.Enable DMX control by setting dipswitch # 10 to the ON position. Use dipswitches 1 through 9 to address each fixture accordingly.

Setti ng t he DM X ad dress

This DMX mode enables the use of a universal DMX controller device. Each fixture requires a "start address" from 1 to 511. A fixture requiring one or more channels for control begins to read the data on the channel indicated by the start address. For example, a fixture that occupies or uses 7 channels of DMX and was addressed to start on DMX channel 100, would read data from channels: 100, 101, 102, 103, 104, 105 and 106. Choose start addresses so that the channels used do not overlap and notate the start address selected for future reference.

If this is your first time addressing a fixture using the DMX-512 control protocol than I suggest jumping to the Appendix Section and read the heading “DMX Primer”. It contains very useful information that will help you understand its use.

Set the start address using the group of DIP switches located usually on bottom of the fixture. Each dip switch has an associated value. Adding the value of each switch in the ON position will provide the start address. Determining which switches to toggle ON given a specific start address can be accomplished in the following manner. By subtracting the largest switch value possible from the selected start address until zero is achieved.

EXAMPLE STARTING ADDRESS

Address 10

Pin # 4	= 8
Pin # 2	= 2
Total	= 10

ON
9
8 7 6 5 4 3 2 1	10

4 2 1	32 16		OPTION 256 128
8		64

Address 24

Pin # 5	= 16
Pin # 4	= 8
Total	= 24

ON
9
8 7 6 5 4 3 2 1	10

4 2 1	32 16		OPTION 256 128
8		64

Resolving address using

simple math.

Address 233

233 – (128)		= 105, Turn ON Dip # 8
105	– (64)	= 41, Turn ON Dip # 7	DIP SWITCH
41	– (32)	= 9, Turn ON Dip # 6
9	– (8) = 1, Turn ON Dip # 4		1
1	– (1) = 0, Turn ON Dip # 1		2
			3
You will most likely use the first			4
			5
available number which maybe			6
number 1. This number was			7
selected for example purposes.			8
			9
			10

(DMX VALUE)

1

2

4

8

16

32

64

128

256

LED-RAIN36 User Manual 9 2006-07-14/15:25