Reference Guide


RS232 Protocol Communication
Settings

Connection Settings
Value
Baud Rate
9600 bps
Data Bits
8 bits
Parity
None
Stop Bits
1 bit
Flow control
None
Control Command Syntax (From PC to Monitor)
[H0][H1][Len][R/W][Cmd][Data0]…[DataN][CHK]
[H0] = 0x37
[H1] = 0x51
[Len] = Length
[R/W] = Read/Write
Read = 0xEB
Write = 0xEA
[Cmd] = Command
[Data0]…[DataN] = Data0~N
[CHK] = Check Sum
Reply Command Syntax (From Monitor to PC)
[H2][H3][Len][Reply][RC][Cmd][Data0]…[DataN][CHK]
[H2] = 0x6F
[H3] = 0x37
[Len] = Length
[Reply] = Reply (0x02)
[RC] = Result Code
0x00 = Success
0x01 = Timeout
0x02 = Parameters Error
0x03 = Not connected
0xFF = Other Failure
[Cmd] = Command
[Data0]…[DataN] = Data0~N
[CHK] = Check Sum
Example: Get Monitor Name
[From PC to Monitor] = 37, 51, 02, EB, 01, 8E
[From Monitor to PC] = 6F, 37, 0E, 02, 00, 01, 44, 65, 6C, 6C, 20, 43, 35, 35, 31, 39, 51,
4E
CheckSum calculation
Xor byte by byte from first byte to the end of the command data stream.