11
Output Command Specifications
Set/Request Volume (0x0D)
Set or request the volume of a zone.
This command returns the volume even if the zone requested is in mute. The
“Request Mute status” command can be used to discover if the zone is muted.
Response data format:
e.g. for volume 42dB: Data1=0x2A (42)
Example
Command/response sequence for setting the volume in Zone 1 to 45dB:
Command:
0x21 0x01 0x0D 0x01 0x2D 0x0D
Response:
0x21 0x01 0x0D 0x00 0x01 0x2D 0x0D
COMMAND:
Byte:
Description:
St
0x21
Zn
Zone number
Cc
0x0D
Dl
0x01
Data
0x00 (0) – 0x63 (99) – Set the volume
0xF0 – Request the current volume
Et
0x0D
RESPONSE:
Byte:
Description:
St
0x21
Zn
Zone number
Cc
0x0D
Ac
Answer code
Dl
0x01
Data1
Zone volume, integer value:
0x00 (0) – 0x63 (99)
Et
0x0D
Request Mute status (0x0E)
Request the mute status of the audio in a zone.
Example
Command/response sequence to request the mute status of zone 1 where zone
1 is muted:
Command:
0x21 0x01 0x0E 0x01 0xF0 0x0D
Response:
0x21 0x01 0x0E 0x00 0x01 0x00 0x0D
COMMAND:
Byte:
Description:
St
0x21
Zn
Zone number
Cc
0x0E
Dl
0x01
Data
0xF0 – Request mute status
Et
0x0D
RESPONSE:
Byte:
Description:
St
0x21
Zn
Zone number
Cc
0x0E
Ac
Answer code
Dl
0x01
P2
0x00 – Zone is muted
0x01 – Zone is not muted
Et
0x0D
Request direct mode status (0x0F)
Request the direct mode status on Zone 1.
Example
Command/response sequence to request the Direct mode status in zone 1
where the mode is direct:
Command:
0x21 0x01 0x0F 0x01 0xF0 0x0D
Response:
0x21 0x01 0x0F 0x00 0x01 0x01 0x0D
COMMAND:
Byte:
Description:
St
0x21
Zn
0x01
Cc
0x0F
Dl
0x01
Data
0xF0 – Request mode setting
Et
0x0D
RESPONSE:
Byte:
Description:
St
0x21
Zn
0x01
Cc
0x0F
Ac
Answer code
Dl
0x01
Data
0x00 – ‘Direct mode’ is off
0x01 – ‘Direct mode’ is on
Et
0x0D
