AMX AXB-DMX512 Operation/Reference Manual page 16

Programming
Group Buffer Commands (Cont.)
Command
GC
Connects one or more groups to an
Axcess level or to a DMX input.
12
Description
A group can only be tied to one or the other not both. The list can be
single groups and/or ranges of groups separated by commas.
Syntax:
"'GC<list of groups><A or D><Axcess level or DMX
input>'"
Variables:
Axcess level = 1-8
DMX input = 1-512
If a single group is connected to an unconnected Axcess level, then
the Axcess level value will change to the group value. Otherwise, the
group value will change to the Axcess level.
There are 4 possible scenarios with this command:
Connecting a single group to an Axcess level: The Axcess level
changes immediately to reflect the current level of the group for nor-
mal groups. The group level immediately changes to reflect the
Axcess level for proportional groups and fixed groups. The group can
now be ramped up and down via the Axcess level ramp commands
('AU', 'AD', and 'AS'). It is no longer possible to use the group ramp
up ('GU') or down ('GD') commands, but the direct ramp command
('GR') and Axcess channels still work, and also affects the Axcess
level. If the group is disconnected using the 'GX' command, the group
ramp up and down will work again.
Example:
SEND_COMMAND DMX,'GC1L2'
Connects Group 1 to Axcess level 2.
Connecting multiple groups to an Axcess level: The group levels
change immediately to reflect the current Axcess level. The group can
now be ramped up and down via the Axcess level. It is no longer pos-
sible to use the group ramp up ('GU') or down ('GD') commands. The
direct ramp command ('GR') and Axcess channels still work but now
controls all groups connected to this Axcess level, as well as the
Axcess level itself.
Example:
SEND_COMMAND DMX,'GC1,2L3'
Connects Groups 1 and 2 to Axcess level 3.
Connecting a single group to a DMX level: The group level changes
immediately to reflect the current DMX input level. The group can now
be ramped up and down by the DMX input level. There are no other
means of affecting the group output.
Example:
SEND_COMMAND DMX,'GC4D5'
Connects Group 4 to DMX input 5.
Connecting multiple groups to a DMX level: The group levels change
immediately to reflect the current DMX input level and behave the
same as connecting a single group to the DMX input.
Example:
SEND_COMMAND DMX,'GC1-3,5D8'
Connects Groups 1 through 3 and 5 to DMX input 8.
AXB-DMX512 DMX512 Interface