Determining a dmx start channel – High End Systems StudioPix Pixelation Luminaire User Manual

Page 38

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CHAPTER 4

DMX Programming Basics and Quick Start

24

StudioPix™ Pixelation Luminaire User Manual

Determining a DMX Start Channel

The DMX Start Channel is the first channel of a device’s channel range on a DMX link. There are
512 available channels on each DMX universe divided among all the devices in a particular
universe. A device must have a unique DMX Start Channel number in order to respond
independently to controller commands.

To determine each device’s DMX Start Channel, identify the footprint of every device on the
universe. The device’s footprint is the number of consecutive DMX channels a device requires
and is determined by the channels in the fixture’s protocol. The fixture’s DMX channel range
must not overlap any other device’s channel range on the link. When two devices on the same
DMX universe have overlapping channel ranges, one or both devices will be disabled or behave
erratically.

Select the protocol level in the fixture’s onboard menu system. The tables on the following
pages list the parameters included in each protocol mode.

Protocol

Mode

Description

DMX Channel Range

Last Valid Start

Channel

SHOWPIX StudioPix SHOWPIX StudioPix

Standard
Protocol

Full control of graphic engine with global
and two image layers

70

70

442

442

RGB Reduced
Protocol

Washlight control only with red, green,
blue, intensity, and strobe controls

12

12

501

501

Pixel Mapping
Protocol

Individual RGB control of LEDs plus
master intensity, and strobe

390

192

123

321

Extended
Protocol

Full control of graphic engine with
Individual RGB control of LEDs available
for additional media input

451

253

62

260

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