SECTIO
N
8
Sample Pro
g
ramming
SECTION 8
Appendices
191
RFID System
User's Manual
• Timing Chart (CIO n = CIO 2000 + (10 x 0) = CIO 2000)
• If communications with the RF Tag fail or an error occurs, communications will be aborted at that
point, the error flags in the Results Information (CIO n+8) will turn ON accordingly, and the error code
will be placed in the Processing Results Monitor (CIO n+9). The previous read data will not be
changed.
• If an auto wait time is set and the set time expires while waiting for an RF Tag, the command
operation will be aborted at that point, the RF Tag Missing Error Flag (CIO n+8, bit 10) in the Results
Information will turn ON, and an error code will be placed in the Processing Results Monitor (CIO
n+9).
• When the communications specification is set to repeat auto, either the Normal End Flag or the Error
End Flag will turn ON every scan for consecutive scans. The execution results can be correctly
determined by using the ON status of both the Normal End Flag and the Error End Flag in Unit
Status.
• To confirm the execution results from the user program, use the ON status of the Normal End Flag or
Error End Flag in the Unit Status.
• Do not turn ON the Command Execution Bit during command execution (i.e., while the ID Busy Flag
is ON). It will be ignored.
More than 15 s
elapsed.
Command Exec
u
tion Bit
CIO n,
b
it 00
Command
CIO n+1 to n+4
N
ormal End
CIO n+7,
b
it 01
ID B
u
sy
CIO n+7,
b
it 00
Res
u
lts Information
CIO n+
8
Data storage area
Error End
CIO n+7,
b
it 02
1 scan
Read
Read data A
0000
Comm
u
nications
processing
0000
Read data B
N
ormal end
N
ormal end
Missing error
Comm
u
nications
processing
1 scan
W
aiting for
RF Tag
1 scan
Summary of Contents for CJ1W-V680C11
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