Rs-232C Ttl/Rs-485 Protocol - LG LS903 Instruction Manual

RS-232C TTL/RS-485 Protocol

Data Communication Format
• Data Length: 1 Byte (8 Bit)
• Start/Stop Bit: 1 Bit
• Parity Bit: None
• Baud rate: 9,600 bps
Format
BYTE 1 BYTE 2 BYTE 3
0xE5 0x86 Camera ID CODE1
*C.S. = Check Sum
• The data of total 6 bytes is transmitted from the
external RS-485 device to the camera.
• BYTE 6 : The value of Check Sum from ʻBYTE 1 ʼ
to ʻBYTE 5 ʼ.
ex) In case of transmission, 0xC5, 0x5F, 0x02,
0x00, 0x0A"
C.S. = 0xC5 +0x5F +0x02 +0x00 +0x0A = 0x0130
therefore, C.S. = 0x30
BYTE 4 BYTE 5 BYTE 6
CODE2 *C.S.
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Commands
Function
OSD Menu ON/OFF E5, 86, ID, 41, 02, C.S.
LEFT Button E5, 86, ID, 12, 80, C.S.
Right Button E5, 86, ID, 12, 90, C.S.
Up Button E5, 86, ID, 11, 80, C.S.
Down Button E5, 86, ID, 11, 90, C.S.
Menu Button E5, 86, ID, 41, 01, C.S.
Command
39