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Troubleshooting
Section 6-5
6-10
Communications Check Flowchart
Is the Tag OK?
Is the Antenna OK?
Remove all but one Tag from the
communications area.
OK
Start
Turn ON the Controller
and connect the host.
Send the WRITE command
in single auto mode.
Does the COMM
indicator go from ON
to OFF?
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
End code 70?
Are the
communications with
the Tag OK?
Normal end?
Yes
Replace the Controller.
Is the moving
speed of Tag
OK?
Is the direction
between Antenna
and Tag OK?
Is the ambient
noise OK?
Is the
Tag OK?
Reduce the speed
Adjust the direction
Check the noise level
Replace the Tag
No
No
No
No
No
No
Write-protected
page?
Is the Tag OK?
Replace the Tag
Change the write page
More than one Tag in
communications area for
Antenna?
No
Replace the Antenna
Is the distance
between the Antenna
and Tag OK?
Adjust the distance.
Replace the Tag.
No
No
No
Yes
Yes
End code 71?
End code 72?
End code E7C?
No
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