Control Codes - Samsung UD22B User Manual

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Preparations

1.4.3 Control Codes

Viewing control state (Get control command)
Header
0xAA
Controlling (Set control command)
Header
0xAA
Command
No.
1
2
3
4
5
6
Issued IDs can be displayed in hexadecimals. However, ID 0 must be displayed as 0xFF.

All communications take place in hexadecimals. The checksum is calculated by adding up all values

except the header. If a checksum adds up to be more than 2 digits as shown below
(11+FF+01+01=112), the first digit is removed.
E.g. Power On & ID=0
Header
0xAA
Header
0xAA
To control all devices connected by a serial cable simultaneously irrespective of IDs, set the ID as

"0xFE" and transmit commands. Commands will be executed by each device but ACK will not
respond.
Command
ID
Command
type
Command
ID
Command
type
Command type
Power control
Volume control
Input source control
Picture Size control
Video wall mode control
Safety Lock
Command
ID
0x11
Command
ID
0x11
Data length
Checksum
0
Data length Data
1 Value
Command Value range
0x11 0~1
0x12 0~100
0x14 -
0x15 -
0x5C 0~1
0x5D 0~1
Data length Data 1
1 "Power"
Data length Data 1
1 1
Checksum
Checksum
12
36
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