Echo; Keypress Sound; Transmission Warning Message; Network Baud Rate - Datalogic PD9330 Product Reference Manual

Enter/Exit Programming Mode

Echo

This function enables/disables the keypad echo. It works only when the
scanner is in simple data input mode (no QTY/CODE).
$CPWKE00\r
Full Keypad echo
$CPWKE02\r
No echo on any key

Keypress Sound

Enables/disables the KEY press sound ('click').
$CPWEI00\r
DEFAULT
246
Disable
DEFAULT
$CPWKE01\r
No echo on function key
$CPWEI01\r
Enable
PowerScan™ PD9330/PBT9300/PM9300