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6-4 Troubleshooting
■Host communications Check Flowchart
Issue TS Command
from the host.
The lit NORML LED
The response has
Error response 7C
NO
Refer to section 6-4-2 Check
OK
Items for Each Response Code.
Start
or ERR LED is
turned off.
YES
been received.
YES
YES
NO
Are the communication
conditions, command
frame, node ID OK?
YES
NO
Are the connector's pin
assignments for the
communication cables OK?
YES
Is the host operating
normally?
YES
The Reader/Writer
may have failed.
6-4
NO
Specify the correct
communication settings
and node ID.
NO
Correct the pin
assignments of the
connectors.
NO
Modify the host program
or replace the host
device.
6-7
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