Samsung PE40C user manual Control Codes, Viewing control state Get control command, Command

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1.6.3 Control Codes

Viewing control state (Get control command)

Header	Command		Data length
		ID		Checksum
0xAA	Command		0
	type

Controlling (Set control command)

Header	Command		Data length	Data
		ID			Checksum
0xAA	Command		1	Value
	type

Command

No.	Command type	Command	Value range
1	Power control	0x11	0~1
2	Volume control	0x12	0~100
3	Input source control	0x14	-
4	Screen mode control	0x18	-
5	Screen size control	0x19	0~255
6	PIP on/off control	0x3C	0~1
7	Auto adjustment control	0x3D	0
8	Video wall mode control	0x5C	0~1
9	Safety Lock	0x5D	0~1
10	Video Wall On	0x84	0~1
11	Video Wall User Control	0x89	-

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.

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