6-4 Troubleshooting
■Communications Check Flowchart
YES
OK
Start
Issue Write Command in
Single Trigger mode.
The lit NORML LED
or ERR LED is
turned off.
YES
The response has
been received.
YES
Is the response
normal?
NO
Response Code 7C
NO
Refer to section 6-4-2 Check
Items for Each Response Code.
NO
NO
YES
The Reader/Writer
may have failed.
6-4
6-8