Chauvet DMX512 user manual Setting the Starting Address

Setting the Starting Address

This DMX mode enables the use of a universal DMX controller device. Choose start addresses so that the channels used do not overlap, and note the start address selected for future reference. 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. Figuring out which switches to toggle ON given a specific start address can be accomplished by determining which switch values will add up to the address value, and turning these switches on. Do so by doing the following:

1)Determine the largest value switch that is less than the start address. Turn this switch on.

2)Subtract the value of the switch you just turned on from the starting address number.

3)Determine the largest value switch that is less than the remainder from the previous subtraction. Turn this switch on.

4)Subtract the value of the switch you just turned on from the remainder of the previous subtraction.

5)Repeat steps three and four until you have a remainder of zero.

EXAMPLE STARTING ADDRESS

Address 10

Switch # 4	= 8
Switch # 2	= 2
Total	= 10

Address 24

Switch # 5 = 16 Switch # 4 = 8

Total = 24

Resolving address using simple math.

Address 233

128 256		16 32 64			1 2 4 8
9	8	7	6	5	4	3	2	1	ON
									OFF
128 256		16 32 64			1 2 4 8
9	8	7	6	5	4	3	2	1	ON
									OFF

233 – (128) = 105, Turn ON Dip # 8	DIPSWITCH	(DMX VALUE)
105 – (64) = 41, Turn ON Dip # 7
41 – (32) = 9, Turn ON Dip # 6	1	1
9 – (8) = 1, Turn ON Dip # 4	2	2
1 – (1) = 0, Turn ON Dip # 1	3	4
	4	8
	5	16
	6	32
	7	64
	8	128
	9	256

LED Mushroom User Manual 8 Rev. 4