Denon POA-3012CI - Multi-Zone Audio Distribution Power Amplifier Owner's Manual page 28

Protocol specification
The following three
Ca.MAND
EVENT
RESPONSE
data forms are defined.
The message sent to a system(POA-3012CI) from a controller(Touch Panel etc.)
A command to a system is given from a controller.
The message sent to a controller (Touch Panel etc.) from a system (POA-3012CI)
The result is sent, when a system is operated directly and a state changes.
*The form of
EVENT
presupposes that it is the same as that of
~ .
**Refer to the following table for the contents of
~
and
EVENT.
The message sent to a controller (Touch Panel etc.) from a system (POA-3012CI)
if the 'request command'
(~?+CR(OxOD))
has came from a controller.
The
RESPONSE
should be sent within 200ms of receiving the
~ .
*The form of
RESPONSE
presupposes that it is the same as that of
EVENT.
Basic specification: The command by ASCII CODE, parameter expression
*ASCII CODE which can be used is from Ox20 to Ox7F: the alphabet and the number of 0-9, and space (Ox20), some signs,
AND carriage return (OxOD) ---
I t
is used only as a pause sign.
Command structure: COMMAND
+ CHANNEL + PARAMETER + CR (OxOD)
COMMAND: ASCII CODE of 2 characters
Ex. SI Select Input source
SV Volume setting
SO Operation mode Setting
SF Low cut filter Mode Setting
PW system Power setting
CHANNEL ASCII CODE of 2 characters (00 to 12)
Ex. 09 channel number
00 for system setting
PARAMETER : ASCII CODE ( up to 25 characters)
Ex. BUSL : function name
BRIDGED: operation mode name
*Special Parameter--- ? : for request command