On Off

SETTING THE STARTING ADDRESS

This DMX mode enables the use of a universal DMX controller device. Each fixture requires a "start address" from 1 to 512. 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 uses 6 DMX channels and was addressed to start on DMX channel 100, would read data from channels: 100, 101, 102, 103, 104, and 105. Choose start addresses so that the channels used do not overlap, and note the start address selected for future reference.

If this is your first time addressing a fixture using the DMX-512 control protocol, we suggest jumping to the Appendix Section and reading 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. 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

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

256	128	64	32	16	8	4	2	1
9	8	7	6	5	4	3	2	1	ON
									ON
									OFF
233 – (128) = 105, Turn ON Dip # 8							DIPS WIT CH		(DM XVALU E)
105 – (64) = 41, Turn ON Dip # 7							DIPS WIT CH		(DM XVALU E)
105 – (64) = 41, Turn ON Dip # 7
41 – (32) = 9, Turn ON Dip # 6								1	1
9 – (8) = 1, Turn ON Dip # 4								1	1
9 – (8) = 1, Turn ON Dip # 4								2	2
1 – (1) = 0, Turn ON Dip # 1								2	2
1 – (1) = 0, Turn ON Dip # 1								3	4
								3	4
								4	8
								5	16
								6	32
								7	64
								8	128
								9	256

MinWash

2007-09-14/09:44

DMX512 specifications

Chauvet DMX512 is a widely used standard in the lighting industry, particularly in theatrical productions, concerts, and events. This protocol facilitates communication between lighting consoles and various lighting fixtures, streamlining the control of lights in a synchronized manner. Understanding its core features, technologies, and characteristics can significantly enhance the capabilities of any lighting designer or technician.

One of the main features of DMX512 is its ability to control multiple devices from a single controller. This is achieved by using a daisy-chaining method where up to 512 channels can be managed over a single network. Each channel can control various parameters of a lighting fixture, such as intensity, color, and movement. The flexibility of DMX512 allows lighting designers to create intricate shows with seamless transitions and effects.

Another crucial aspect of DMX512 is its robust technology that includes differential signaling. This aids in reducing signal interference and ensures that signals can be transmitted over long distances, making it ideal for large venues. The standard operates at a speed of 250 kbaud, providing reliable and fast communication between devices.

Additionally, DMX512 employs a 3-pin or 5-pin XLR connector, commonly found in both commercial and professional lighting systems. This standardization allows for ease of setup and compatibility with various equipment, enhancing the versatility of different lighting rigs.

One of the defining characteristics of DMX512 is its backward compatibility with older lighting technologies, making it an excellent option for venues transitioning from analog to digital controls. Its widespread acceptance means that users can access a plethora of lighting equipment designed to interact with DMX512, ranging from simple par cans to sophisticated moving head fixtures.

Moreover, DMX512 supports a variety of fixture types, including LED lights, fog machines, and intelligent fixtures. This versatility equips lighting designers with a diverse toolbox for creating dynamic visual presentations that can adapt to the needs of their specific projects.

In summary, Chauvet DMX512 is an essential protocol for any lighting professional, offering a combination of extensive control, reliability, and flexibility. Its compatibility with numerous lighting devices, robust signal transmission capabilities, and widespread usage make it a cornerstone of modern lighting design, ensuring that creators can bring their artistic visions to life efficiently and effectively.