Rockwell Automation 2755 2D Hand-Held Scanner - Manual (Page 112)

E–14 Advanced Data Formatting
Publication 2755-6.4
Beeper Definitions – Error Indications
When errors occur, the duration of tones very long.
Beeper Sequence Indication
Low–High–Low–High
Out of rule memory. Erase some existing rules,
then try to save rule again. (The current rule need
not be re-entered).
Low–Low
Cancel rule entry. Rule entry mode exited because
of an error or you asked to exit rule entry.
Low–High
Entry error, wrong bar code scanned. Re-enter
criterion or action. All previously entered criteria
and actions are retained. Criteria or action list is
too long for a rule.