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SECTION 5
V680 Commands
RFID System
User’s Manual
SECTION 5
Communications
Response Frame
1:1 Protocol
1:N Protocol
Name Description
Command code For all commands other than an RP or PC command, the data that is in the transmitted command
frame is added and returned.
End code Indicates the execution result for the command.
Refer to List of End Codes for information on end codes.
p. 171
Antenna designation Indicates the number of the Antenna used for communications.
“1”: Antenna 1
“2”: Antenna 2
Resend flag A flag indicating the response for resends.
“0”: Response after normal command processing
“1”: Response returned for a RESPONSE RESEND (RR) command.
Data The result of executing the command and the obtained data (for example, the read data).
FCS Horizontal parity check data that is added when using 1:N protocol.
Note: Other than the above items, the same data as the command frame is returned in the response.
×× ×× ××
...
* CR
2
n
2
××××
2
11
UID
×× ××
...
0 or 16
Command code
Data
Terminator
End code
Antenna
desig-
nation
Resend
flag
×× ×× ××
...
*
CR
2
n
2
××××
2
11
××
FCS
2
××
2
0
1
@
1
UID
×× ××
...
0 or 16
Command code
Data
Terminator
End code
Antenna
desig-
nation
Resend
flag
Controller No.
FCS calculation range
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