Rockwell Automation 2755 AdaptaScan Software - Manual (Page 99)

6–17
Publication 2755-838
USPS 2 of 5
Open the USPS 2 of 5 dialog by highlighting USPS 2 of 5 in the
Symbologies dialog and then selecting the Edit button.
Decode Direction
The Reader uses the decode direction to determine the least
significant bar within a symbol.
Select: To:
Forward Decode symbols in a left to right direction.
Reverse Decode symbols in a right to left direction.
The decode direction determines the value of the decoded symbol:
Decode Direction = Forward
Value = 15084 Decode Direction = Reverse
Value = 53041
Least
Significant
Bar Most
Significant
Bar Least
Significant
Bar
Most
Significant
Bar
Space Tolerance
The maximum allowed tolerance (percent difference in width)
between the narrowest and widest space elements. Enter a value
between 5 and 40. The default of 20 (20%) is recommended for
most applications.
Space tolerance is calculated as follows;
Widest Space – Narrowest Space
Widest Space + Narrowest Space
3
x 100 = % Space Tolerance
☞
Or double-click on a
symbology in the Symbologies
box to open the dialog.