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Errors and Remedies
Section 6-2
6-3
6-2 Self-diagnostics
The Reader/Writer has a self-diagnostic function to check a variety of items in order to reduce the
downtime of the system that may result due to operational failures.
Details of Errors
Errors detected by the Reader/Writer can be classified into “fatal errors” and
“nonfatal errors.”
Fatal error
If the hardware of the Reader/Writer fails, the operation of the CPU will be
interrupted and the ERROR indicator will turn ON or flash.
Nonfatal error
If there is a communications error between the Reader/Writer and host or the
Antenna and Tag, the ERROR indicator will turn ON.
Indicator
Item
RUN
COMM
NORM
ERROR
Awaiting command
○
●
●
●
Communicating with Tag
○
○
●
●
Normal
operation
Normal completion of communications with
Tag
○
●
○
●
CPU error
●
●
●
○
Fatal error
Memory error
●
●
●
Communications error
○
●
●
○
Nonfatal error
Host communications error
○
●
●
○
Setting
error
○
●
●
○
: ON
●
: OFF
:
Flashing