DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal
-
Upload
leducation-nyc -
Category
Technology
-
view
1.040 -
download
0
Transcript of DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal
![Page 1: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/1.jpg)
Designers Lighting Forum
DMX-512A FOR LED CONTROL:Getting Reacquainted With an Old/New Friend
Shoshanna A. Segal, CLD, IALD, LEED APBD+CMarch 29, 2017
![Page 2: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/2.jpg)
Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.
This course is registered with AIA CESfor continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any
material of construction or any method or manner ofhandling, using, distributing, or dealing in any material or product.___________________________________________Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
![Page 3: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/3.jpg)
LearningObjectives
1. Why a standards based system is a good idea
2. The basic organization and function of a DMX-512A System
3. How DMX-512A can be a useful tool in an architectural environment
4. Requirements and terminology for specifying DMX-512A system
At the end of the this course, participants will be able to:
![Page 4: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/4.jpg)
Topics we will not cover today….Earl Simmons, American rapper, record producer, and actor
![Page 5: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/5.jpg)
… or thisReebok’s proprietary foam compound used to provide cushioning and shock absorption in basketball shoes
![Page 6: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/6.jpg)
WHAT IS IT?
• a method of digital data transmission between controllers and controlled lighting equipment and accessories, including dimmers and related equipment.
• intended to provide for interoperability at both communication and mechanical levels with controllers and receivers made by different manufacturers.
![Page 7: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/7.jpg)
BASIC DEFINITIONS
• Original Title –• USITT DMX512 -
ASYNCHRONOUS SERIAL DIGITAL DATA TRANSMISSION STANDARD FOR CONTROLLING LIGHTING EQUIPMENT & ACCESSORIES – NOW
• ANSI E1.11-2008 (R2013) ENTERTAINMENT TECHNOLOGY
• USITT DMX512-A ASYNCHRONOUS SERIAL DIGITAL DATA TRANSMISSION STANDARD FOR CONTROLLING LIGHTING EQUIPMENT & ACCESSORIES
DMX512-ABUSDAISY CHAIN256512
![Page 8: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/8.jpg)
BASIC HISTORY
• Developed in 1986 by USITT• Standard transferred to ESTA Technical
Standards in 1998
![Page 9: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/9.jpg)
Why A Standard?
• Having a standard ensures that everyone using the specific technology is complying with the same set of rules. In this case that means…
![Page 10: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/10.jpg)
Electrical Interface Standards• EIA485 (RS485)
![Page 11: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/11.jpg)
Physical Interface Standards• 5-Pin XLR Connectors
![Page 12: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/12.jpg)
Interface Standards• 8 pin modular or RJ45
Connectors
![Page 13: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/13.jpg)
Topology Standards• MULTI-DROP BUS
TOPOLOGY WITH • DAISY CHANINED
NODES • ELECTRICAL
TERMINATION
![Page 14: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/14.jpg)
BASIC DEFINITIONS
TOPOLOGY STANDARDS• An electrical scheme to carry power
or data• A bus can be Class I (Signal travels
with Line Voltage) • or Class II (Limited power, often 48V
or Less)• A bus can be rated (or limited) by
distance or cable length for signal/power – as in the 1500’ mentioned in the RP
• The rating of bus components affects the rated distance among or between components (nodes) for signal/power
• A bus can carry Digital or Analog Communication
DMX-512-A
BUSDAISY CHAIN256512
![Page 15: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/15.jpg)
BASIC DEFINITIONSDMX-512-ABUS
DAISY CHAIN256512
TOPOLOGY STANDARDS
![Page 16: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/16.jpg)
TOPOLOGY STANDARDS
THIS
NOT THIS
![Page 17: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/17.jpg)
BASIC DEFINITIONS
• DMX-512-A breaks down the control process into 256 digital steps.DMX512-A
BUSDAISY CHAIN
256512
![Page 18: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/18.jpg)
BASIC DEFINITIONS
• 512 REPRESENTS THE MAXIMUM NUMBER OF ADDRESSES OR DATA SLOTS AVAILABLE WITHIN ANY SINGLE DMX512 UNIVERSE
• EACH OF THE 32 NODES ON THE BUS CAN BE INDIVIDUALLY CONTROLLED BY SENDING INSTRUCTIONS TO EACH OF 16 ATTRIBUTES.
• 32 x 16 = 512
DMX512-ABUSDAISY CHAIN256
512
![Page 19: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/19.jpg)
How is all of this used?
![Page 20: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/20.jpg)
Lighting Control ComponentsAll lighting systems have essentially the same components:• User-Command/Sensor/Controller/
Dimmer/Switch• Interface - translates signal to
action• Power• Regulator-
Driver/Ballast/Transformer• Light Source/Luminaire/Light
Engine
![Page 21: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/21.jpg)
Lighting Control ComponentsAll lighting systems have essentially the same components:• User-Command/Sensor/Controller/
Dimmer/Switch• Interface - translates signal to
action• Power• Regulator-
Driver/Ballast/Transformer• Light Source/Luminaire/Light
Engine
![Page 22: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/22.jpg)
Lighting Control ComponentsAll lighting systems have essentially the same components:• User-Command/Sensor/Controller/
Dimmer/Switch• Interface - translates signal to
action• Power• Regulator-
Driver/Ballast/Transformer• Light Source/Luminaire/Light
Engine
![Page 23: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/23.jpg)
Lighting Control ComponentsAll lighting systems have essentially the same components:• User-Command/Sensor/Controller/
Dimmer/Switch• Interface - translates signal to
action• Power• Regulator-
Driver/Ballast/Transformer• Light Source/Luminaire/Light
Engine
![Page 24: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/24.jpg)
Lighting Control ComponentsAll lighting systems have essentially the same components:• User-Command/Sensor/Controller/
Dimmer/Switch• Interface - translates signal to
action• Power• Regulator-
Driver/Ballast/Transformer• Light Source/Luminaire/Light
Engine
![Page 25: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/25.jpg)
How do we communicate with the light source?
0-10V
PHASE CONTROL
PWM
![Page 26: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/26.jpg)
0-10v systems
• Line voltage switches the driver “on”
• Low voltage provides a control signal indicating a percentage of maximum output
• Voltage drop is an issue as the control signal is weakened as it travels
• May result in output differences along a single control run
• 0-10v is an analog control protocol and it interfaces with the LED Driver with 2 sets of wires
• Class I 120/277 line-voltage switching
• Class II ≤48v dimming control
![Page 27: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/27.jpg)
ANSI C82.11 vs. ESTA E1.3
ANSI C82.11• CURRENT SINK• DRIVER PROVIDES CONTROL
VOLTAGE• DIMMER IS PART OF DRIVER• MAX OUTPUT AT ≥10V• MINIMUM OUTPUT AT 1V• MAY REQUIRE ADDITIONAL
“OFF”• MAX # OF DRIVERS/CONTROL
LIMITED BY DRIVER CAPACITY
ESTA E1.3• CURRENT SOURCE• CONTROL PROVIDES VOLTAGE
FOR EACH CHANNEL• DIMMERS ARE SEPARATE FROM • MAX OUTPUT AT 10V• OFF AT 0V
![Page 28: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/28.jpg)
Phase Control Systems
• Modulates the amount of time full voltage is applied
• 120 times per second
• 2x frequency is delivered via AC (60Hz)
![Page 29: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/29.jpg)
Forward Phase
Also called Leading Edge
![Page 30: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/30.jpg)
Reverse PhaseAlso called Trailing Edge
![Page 31: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/31.jpg)
Pulse Width Modulation• Controls the time-averaged
current through an LED and therefore the intensity.
• LED is turned on and off more quickly than is perceptible to the human eye. The intensity is approximately proportional to the percentage of time that the LED is on.
• Because it can control individual LED’s PWM can be used for color mixing as the relative levels of each component color can be manipulated to achieve the desired color.
![Page 32: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/32.jpg)
Why these are non issues with DMX512-A?
![Page 33: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/33.jpg)
Why these are non issues with DMX512-A?
![Page 34: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/34.jpg)
DMX-512A
PROS• Stable protocol designed to
make products from different manufacturers work together; refined and reapproved for over 30 yrs.
CONS• “Old Technology”
![Page 35: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/35.jpg)
DMX-512A
PROS• Stable protocol designed to make
products from different manufacturers work together
• Less gray area than other methods – presence of a written standard means you either comply or don’t
CONS• “Old Technology”
• Requires “special” equipment
![Page 36: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/36.jpg)
DMX-512A
PROS• Stable protocol designed to make
products from different manufacturers work together
• Less gray area than other methods –presence of a written standard means you either comply or don’t
• Technology designed for mission critical live performance
CONS• “Old Technology”
• Requires “special” equipment
• Not every conference room needs this
![Page 37: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/37.jpg)
DMX-512A
PROS• Stable protocol designed to make
products from different manufacturers work together
• Less gray area than other methods –presence of a written standard means you either comply or don’t
• Technology designed for mission critical live performance
• “Old school” nature of the standard means relatively few places to look when problems do arise
CONS• “Old Technology”
• Requires “special” equipment
• Not every conference room needs this
• No inherent error checking, communication is unidirectional
![Page 38: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/38.jpg)
DMX-512A
PROS• Stable protocol designed to make
products from different manufacturers work together
• Less gray area than other methods –presence of a written standard means you either comply or don’t
• Technology designed for mission critical live performance
• “Old school” nature of the standard means relatively few places to look when problems do arise
• Wireless DMX
CONS• “Old Technology”
• Requires “special” equipment
• Not every conference room needs this
• No inherent error checking, communication is unidirectional
• “But I want wireless”
![Page 39: DMX-512A FOR LED CONTROL: Getting Reacquainted With an Old/New Friend by Shoshanna Segal](https://reader033.fdocuments.us/reader033/viewer/2022052117/5a6518137f8b9aa2548b6f2b/html5/thumbnails/39.jpg)
This concludes The American Institute of Architects Continuing Education Systems Course