Wasp Barcode WLS9600 Product Reference Guide - Manual (Page 122)

Code 39 ENTER/EXIT PROGRAMMING MODE
112 WLS9600
Code 39 Length Control
This feature specifies either variable length decoding or fixed length decoding for the Code 39
symbology.
Variable Length. For variable length decoding, a minimum and maximum length may be set.
Fixed Length. For fixed length decoding, two different lengths may be set.
DEFAULT
Code 39 Length Control = Variable Length
Code 39 Length Control = Fixed Length