Rockwell Automation 2755-G6-D Scanner with RS-232 Option - Manual (Page 38)

General Setup Parameters
Chapter 5
5–4
To disable or set the volume of the beeper, scan the
appropriate option below.
AA Beeper Off
AB
Volume Low
Beeper On;
AC
Beeper On;
Volume Medium
AD
Beeper On;
Volume Loud *
Beeper
Operation