7 - 1
7 - 1
7. TROUBLESHOOTING
Chapter 7. TROUBLESHOOTING
The following describes the details of the errors that may occur when using the RFID
interface module, and the corresponding troubleshooting methods.
7.1 Error Details List
When an error occurs, the RFID interface module turns ON the bit corresponding to the
error details in the error details storage area (Un
\
G41, Un
\
G4041).
The bits of the error details storage area (Un
\
G41, Un
\
G4041) are cleared by either
turning OFF the ID command execution request (Y14, Y1C) or turning ON and then
OFF result reception (Y16, Y1E).
Table 7.1 Error Details List
Bit
Name*
1
Description
0
ID command error
Turns ON when there is an error in the specified ID command.
1
Not used
-
2
Not used
-
3
Data correction flag
Turns ON when data become normal by data correction as a result of Read with
Error Correction.
4
Status flag*
1
Turns ON in the following cases:
When the number of rewrites is exceeded by the Control Number of Writes
command.
When the verification results indicate an error as a result of a memory data check
(verification).
When a data error occurs as a result of Read with Error Correction.
When overflow occurs as a result of an addition operation of Write Calculation.
When underflow occurred as a result of a subtraction operation of Write
Calculation.
When an error occurs as a result of data writing after reading during the Copy
command. *
1
5
Not used
-
6
Not used
-
7
ID system error 3
ID system error
8
ID system error 2
ID system error
9
ID system error 1
ID system error
10
Tag not present error
Turns ON when there is no communicable ID in the antenna communication area.
11
Protect error
Turns ON when data are written to an area set as write-protected.
12
Tag communication error Turns ON when communication with an ID tag does not end normally.
13
Address error
Turns ON when the ID tag address range has been exceeded and an attempt is
made to read or write data.
14
Verify error
Turns ON when data writing cannot be performed normally with an ID tag.
15
Antenna error
Turns ON when failure occurs possibly because the antenna is not connected.
*1. When a Copy command error occurs causing an error on the copy destination
side, the bit on the copy source side also turns ON.
7