Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 75)

6–2 Configuration: Symbology
Publication 2755-833
The decoder will auto discriminate between multiple symbologies.
For optimum performance, enable only those symbologies and code
lengths you intend to use.
The following pages define each symbology parameter along with
the field type and possible values. The default value is shown in bold
letters.
Code 39
Field Type Options
Select
No
Yes
Enables/disables decoding of Code 39 bar code labels. The default of
Yes (except on Pharma-Code decoders) enables decoding of this
symbology. Select No to disable decoding.
Code 39 Specific Lengths
Field Type Options
Edit Numeric 0 through 64 (0)
Sets length checking for Code 39 bar code labels. The default is 0,
which means the decoder does not check lengths.
You can specify up to 8 code lengths (maximum of 64 characters).
The code length includes the check character, but not the start
and stop characters. If you specify a code length other than 0, the
decoder will only decode labels with the number of characters
specified.
Important: Enter specific lengths starting with the leftmost blank
field. Specific lengths entered to the right of a blank field are
ignored.
Correct Incorrect
15 is to the right of a blank
field and will be ignored.