165
RFID System
User’s Manual
SECTION 5
V680 Commands
SECTION 5
Communications
1:N Protocol
The error log information will not be cleared even if clearing the Controller history information is specified (process des-
ignation 1). Use the READ ERROR INFORMATION (CF) command to clear the error log information.
p. 153
Process designation Specifies the process to execute.
“0”: Read history information.
“1”: Clear history information.
Antenna designation Specifies the Antenna with which to communicate.
“1”: Antenna 1
“2”: Antenna 2
Controller history informa-
tion
Up to 30 records of Controller history information will be returned.
History information is returned in chronological order with the newest records first. Each record is
five characters long.
Command
CF
× 0
21
2
* CR
1
@
2
0
11
FCS
2
Command
code
Terminator
Controller No.
×
Process
desig-
nation
Fixed
value
×
×
×
Response
CF
22
2
* CR
0
1
0
1
...
New error log information
n
@
2
0
11
FCS
2
Command
code
Terminator
End code
Resend
flag
Controller No.
Fixed
value
××
×
×
××
×
×
×
×
RD 1 70 ;
Generated end code
Error command
Head No. with error (for communications with Data Carriers only)
A space will be output for when the error is not a communications error.
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