Rockwell Automation 2755-G6-D Scanner with RS-232 Option - Manual (Page 67)

Symbologies
Chapter 8
8–4
Minimum Length
The minimum length of Code 39 is set by scanning
label OH and then two digits (01 - 32) in Appendix B.
OH
Minimum Length
+
(Specified by two digits 01-32)
For example, to enter a minimum length of 05, scan
the OH label, then scan codes 0 and 5 in Appendix B.
Maximum Length
The maximum length of Code 39 is set by scanning
label OI and then two digits (01 - 32) in Appendix B.
OI
Maximum Length
+
(Specified by two digits 01-32)
For example, to enter a maximum length of 05, scan
the OI label, then scan codes 0 and 5 in Appendix B.
If the minimum and maximum lengths are set
equal, only codes of that exact length are read.
Code 39
(continued)