Rockwell Automation 2755 AdaptaScan Bar Code Readers - Manual (Page 16)

Overview 1–8
You can configure a Reader as either a linear or raster scanner. The
orientation of the bar code label with the scanner usually determines
the scanning mode appropriate for the application.
Linear Mode
Linear
Scan Line Elevation
is adjustable. Scan Line Elevation
is adjustable.
In the linear scan mode, the scan line elevation can be be adjusted.
Raster Mode
Raster
Upper and lower raster
limits are adjustable.
Raster increment is adjust-
able. Increment increases /
decreases the number of scan
lines in the raster pattern.
Flyback quickly returns the
scan line to the upper raster
limit after the lower limit is
reached.
In raster scan mode, you can adjust or select:
•
Upper and lower raster limits
Upper Raster Angle
Lower Raster Angle
•
Raster increment
Increment
Decrease Increase
•
Flyback enable
Flyback
Scanning Modes