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SYRDBT-U1 Reader Protocol Manual
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4. Protocol Description
Packet format
Command : Host(PC) ->
SYRD
STX[01] + INS + { DATA } + BCC + END[0D]
Response : SYRD ->
Host(PC)
STX[02] + INS + { DATA } + BCC + END[0D]
Network Packet format (with ID)
Command : Host(PC) ->
SYRD
STX[01] + ID
1
+ ID
2
+ INS + { DATA } + BCC + END[0D]
Response : SYRD ->
Host(PC)
STX[02] + ID
1
+ ID
2
+ INS + { DATA } + BCC + END[0D]
****** [ Packet Type : ASCII FORMAT
;
Except STX and END] ******
Symbol:
[] : means a hexadecimal value in a byte data type
“” : means a string data type
Command : Host(PC) -> SYRD
STX + INS + { DATA } + BCC + END
STX :
[01]
INS : Instruction one character
DATA : n byte data or none (In Hex format)
BCC : STX xor INS xor {DATA
1
xor ……. xor DATA
n
} (In Hex format)
END :
[0D]
Response : SYRD -> Host(PC)
STX + INS + { DATA } + BCC + GND
STX :
[02]
INS : Instruction one character
DATA : n byte data or none (In Hex format)
BCC : STX xor INS xor {DATA
1
xor ……. xor DATA
n
} (In Hex format)
END :
[0D]