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Troubleshooting
Problem
The display goes blank when
reading/writing.
The display is blank after
switching on.
Error messages appear that are
not defined anywhere.
The tag ID of a tag is not
scanned and does not appear in
the list on the display.
The supervisor password is not
known.
The password for the write
commands of the SIMATIC
RF680M application has been
forgotten.
The tag at the read head is not
read.
The "Function ..." command (e.g.
Write) was not performed on the
tag that is situated in the field.
SIMATIC RF680M Mobile Reader
Operating Instructions, 06/2011, J31069-D0241-U001-A2-7618
Possible cause
The battery or the batteries of the
reader are empty.
The battery or the batteries are
empty.
The tag has no tag ID.
The EPC tag has not been initialized. The tag must be initialized.
The tag is defective.
The tag is too far away from the read
head.
The frequency ranges of tag and
reader do not match. (US; EU)
The orientation of the tag antenna
does not comply with the alignment
of the reader antenna.
The "Secured" state or a password
have been set on the tag
Problem recovery
Insert the device into the charging and docking
station or insert new batteries.
Insert the device into the charging and docking
station or insert new batteries.
Remove the batteries from the basic unit and re-
insert them after 60 s. The device now has the
delivery status. If the error persists, the device
may have a defect.
Use the tags that already have an ID.
Restore the factory state. See Chapter System
reset (Page 89).
Copy in the most recent back-up.
Use a different/new tag.
Reduce the distance between the read head
and the tag. Please observe the limit distances
between the reader and tags. Refer to the limit
distances in Chapter Technical data (Page 93).
Use a transponder that suits the RF680M read
head.
Ensure correct alignment of the transponder
antenna and reader antenna. See Antenna and
antenna field (Page 14).
You can only perform the "Function ..."
command when you know the exact status of
the tag. It is not possible to read out the status
of the tag.
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