Samsung QM43B User Manual page 43

Power control
• Function
A product can be powered on and off using a PC.
• Viewing power state (Get Power ON / OFF Status)
Header Command
ID
0xAA 0x11
• Setting power ON/Off (Set Power ON / OFF)
Header Command
ID
0xAA 0x11
"Power": Power code to be set on a product.
1: Power ON
0: Power OFF
• Ack
Header Command Data length
ID
0xAA 0xFF
"Power": Power code to be set on a product.
• Nak
Header Command Data length
ID
0xAA 0xFF
"ERR" : A code showing what error has occurred.
Data length
Checksum
0
Data length Data
1 "Power"
Ack/Nak r-CMD Val1
3 'A' 0x11 "Power"
Ack/Nak r-CMD Val1
3 'N' 0x11 "ERR"
Volume control
• Function
The volume of a product can be adjusted using a PC.
• Viewing volume state (Get Volume Status)
Header Command
0xAA
• Setting the volume (Set Volume)
Header Command
Checksum
0xAA
"Volume": Volume value code to be set on a product. (0-100)
• Ack
Header Command
0xAA 0xFF
"Volume": Volume value code to be set on a product. (0-100)
Checksum
• Nak
Header Command
0xAA 0xFF
"ERR" : A code showing what error has occurred.
Checksum
Data length
ID
0x12 0
Data length
ID
0x12 1
Data length Ack/Nak
ID
3 'A'
Data length Ack/Nak
ID
3 'N'
Checksum
Data
Checksum
"Volume"
r-CMD Val1
Checksum
0x12 "Volume"
r-CMD Val1
Checksum
0x12 "ERR"
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