Omron F250-UME Software Manual page 542

ECM Search
Edge
2-23-(15)
The edge registration method can be used when the measurement object is
rectangular.
Draw 4 regions. One edge is detected from each region and that becomes the
reference position.
Region 0 Region 1
1. Setting Edge Detection Conditions
Set the direction to search for the 4 edges and the density change as the
measurement conditions.
Edge
Measurement conditions
Region0 direction
Region0
Region0 Color
Region1
Region1 direction
Region2
Region1 Color
Region3
Region2 direction
End
Region2 Color
Region3 direction
Region3 Color
End
Example: Finding this position in region 0.
’
Direction:
Color: Light
Region 2
Region 3
Line connecting edge points
found for regions 0 and 1.
Search coordinates (cross point of lines)
Line connecting edge points
found for regions 2 and 3.
Edge detection direction:
:
Light
: Dark
:
Density change:
Light
: Dark
Light
:
Light
: Dark
:
Light
: Dark
“
dark
Section 2-23
‘ “
,
“ “
dark, dark light.
’ ”
, , .