Datalogic Powerscan PD7100 Product Reference Manual page 248

Symbologies
Codabar — cont.
Codabar Set Length 1 — cont.
Select Codabar Length 1 Setting
Make a mistake? Scan the CANCEL barcode to abort and not
save the entry string. You can then start again at the beginning.
238
ENTER/EXIT PROGRAMMING MODE
03 = Length 1 is 3 Characters
DEFAULT
CANCEL
PowerScan TM PD7100 Corded