Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 74)

Chapter
6
Publication 2755-833
Configuration: Symbology
Option 1 on the Select Operation menu accesses the Symbology
configuration screen. Use this function to select symbologies for
decoding and to define the operating parameters to use during
decoding. The screen is displayed with the first field highlighted.
The default settings are displayed the first time you access this
screen. Make changes appropriate for your application. If the factory
defaults are satisfactory, you can return to the Select Operation
menu by pressing [Esc] twice.
The parameters on this screen:
•
Enable symbologies for decoding
•
Enable specific length checking, which serves two purposes:
– provides data integrity for variable length symbologies by
protecting against short reads. The decoder will only decode
bar code symbols that contain the exact number of characters
specified in the length fields. Especially useful for Interleaved
2 of 5 when check characters are not being used.
– optimizes operations by allowing the decoder to select scans
for decoding from several labels with different lengths. For
example, the decoder can select the 6 character code from a
carton that has 14, 6, and 4 character codes
•
Enable supplements for UPC/EAN symbologies
•
Enable verification of guard bars with Interleaved 2-of-5 symbols
•
Adjust and set the quiet zone ratio (if necessary)
•
Configure parameters for Pharma–Code labels.
Configure Symbology