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User Manual Configuring the Fixture 2-15
To select the fixture number control method:
1. Press and hold the <Menu> button until “ADDR” appears on the LED
display.
2. Using the <Up> and <Down> arrow buttons, scroll to the “SET” menu
and press the <Enter> button to select the “SET” menu.
3. Using the <Up> and <Down> arrow buttons, scroll to the “CHNL” menu
and press the <Enter> button to select the “CHNL” menu.
4. Using the <Up> and <Down> arrow buttons, scroll to the “ADDR” option
and press the <Enter> button to select the “ADDR” option.
Note
You must select a control method for
each
Technobeam
fixture on the link.
Assigning a Fixture Address
The fixture’s address identifies each fixture’s channel range on the
DMX link. After you have selected a control method, you must assign a
DMX start channel or fixture number to each fixture:
• If you chose the DMX start channel control method for the fixture,
you must assign each fixture a DMX start channel.
• If you chose the fixture number control method, you must assign
each fixture a fixture number.
You must assign a
unique
fixture address to each fixture that you want
to respond
independently
to controller commands. If you want two or
more fixtures to respond to controller commands in exactly the same
way, all fixtures must be the same type (for example two Technobeam
fixtures set to iris protocol) and must share the
entire
channel range.
Channel Range
There are 512 available channels on each DMX link. These 512
channels are divided among
all
the devices in a particular link. The
number of channels each fixture requires is called the fixture’s channel
range. The size of each fixture’s channel range is determined by the
fixture type (see “Fixture Types” on page 2-13).
Each Technobeam set to full, iris, or LCD protocol reserves a block of
18 contiguous channels. Each Technobeam set to reduced protocol
reserves a block of 14 contiguous channels. Therefore, you can control
up to 28 Technobeam fixtures set to full, iris, or LCD protocol (512
DMX channels available / 18 channels used = 28.4 fixtures per link) or
up to 32 Technobeam fixtures set to reduced protocol*.
*
Note
Although there are enough available DMX channels to
link up to 36 Technobeam fixtures in reduced protocol,
you must use a DMX splitter to connect more than 32
fixtures per link. The 32 device limit complies with the
EIA-485 standard. Connecting more than 32 devices per