Rockwell Automation 2755-G6-D Scanner with RS-232 Option - Manual (Page 66)

Symbologies
Chapter 8
8–3
Modulo 43 Check Character
Options OD and OE allow you to enable or disable the
Modulo 43 check character for Code 39. To enable
the Modulo 43 check character, scan label OE. To
disable the Modulo 43 check character, scan label OD.
OD
Disable Modulo 43 *
Check Character
OE
Enable Modulo 43
Check Character
Transmit Start/Stop Characters
You can transmit or suppress the Start and Stop
characters in Code 39. To suppress transmission of
the Start and Stop characters, scan label OF.
OF
Do Not Transmit *
Start and Stop
To enable transmission of the Start and Stop
characters, scan label OG.
OG
Transmit
Start and Stop