Martin P3 PowerPort 1500 Manuel d'utilisateur télécharger pdf (Page 13)

System setup 13

System setup

Warning! Before applying power to the VC-Grid:

• Carefully review the safety information starting on page 4

• Check that the installation is safe and secure.

Setting up for P3 display

A Martin P3™ system allows video to be displayed on an installation that consists of or includes VC-Grid

devices. When a P3 controller is connected to the data link and the installation is powered on, you can set

up all the devices on the link from the P3 controller. See the P3 controller user manual for details.

Setting up for DMX control

A DMX system gives 0 - 100% variable intensity control. Varying the intensity of red, blue and green LEDs in

RGB products provides RGB color mixing.

You can set up and control a VC-Grid installation over the data link using an RDM-compatible DMX

controller such as the Martin M-PC™ Windows application (running on a PC connected to a USB/DMX

interface such as the Martin USB Duo™ DMX Interface) or the Martin M1™ DMX/RDM control console. The

interface on the Martin M1™ monitor screen is basically identical to the Martin M-PC™ interface.

DMX control channels

DMX controllers send control data on DMX control channels in DMX universes. One DMX universe has 512

channels available. RGB control of each individually controlled element in an installation requires three

channels, white intensity control requires one channel.

A VC-Grid installation can be controlled as groups of pixels or as individual pixels:

• A group can consist of an entire installation, any part of an installation or separate 8 x 8 VC-Grid modules.

In grouped control, all the LEDs in one group are controlled using the same DMX channels – three

channels for RGB products and one channel for WW, MW and CW products.

• If VC-Grids are set up for individual pixel control, each of the 64 LEDs on a module is controlled by its own

DMX channels.

A VC-Grid installation uses the number of DMX channels required by the group or pixel (three channels for

RGB and one channel for WW, MW or CW) multiplied by the total number of groups or pixels in the

installation. For example, an installation with fifty RGB modules will require:

• 3 DMX channels if the entire installation is controlled as one group,

• 3 channels x 10 groups = 30 DMX channels if the installation is divided into ten groups that are controlled

individually,

• 3 channels x 50 modules = 150 DMX channels if each of the fifty modules is controlled as an individual

group, and

• 3 channels x 50 modules x 64 pixels = 9600 DMX channels if each of the 3200 pixels is controlled

individually (in this example, 19 DMX universes will be required because one DMX universe has 512

channels).

Individual and grouped control can be mixed freely in an installation. For example, some VC-Grid modules

can be set up for individual pixel control, other modules can be set up for individual module control, and

other modules can be put into groups for grouped control of multiple modules.

DMX addresses

The system must be set up so that each individually controlled group or pixel receives instructions from the

DMX controller on its own DMX channels. The DMX address, also known as the control address or start

channel, is the first of these channels. If a unit uses more than one channel, it uses the DMX address

channel and the channels immediately above it. For example, one VC-Grid RGB module controlled as one

group and set to DMX address 1 will use DMX channels 1 - 3. Channel 4 will be available for use as a DMX

address for the next device.

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 23 24

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Martin P3 PowerPort 1500 Manuel d'utilisateur Page 13

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