Omron F160 Vision Sensor, Operation Manual, Page: 39 / 148

30
Understanding Setting Operations
Section 2-3
Methods for Determining Presence
The following explanation applies if Shape was selected.
4. Specify the object movement range.
If the region to be measured is always in the same position, use the initial
box displayed in dotted lines and use the ENT Key to select the upper-left
and lower-right corners.
If the region to be inspected may be displaced, draw a rectangle large
enough to allow for the range of movement. Use the Up/Down and Left/
Right Keys to move the cursor and use the ENT Key to select the range.
Method Details Example
Shape Judges based on
differences in
shape. Objects
with the same
shape but differ-
ent orientation will
give an NG result.
Size Judges based on
differences in size.
Objects with the
same size but dif-
ferent shape will
still give an OK
result.
Bright-
ness Judges based on
differences in
brightness.
A
Reference
A
OK
B
NG
A
NG
Reference
OK NG
NG
Reference
OK NG
NG
0.Scn 0 =SET= Region
0.Presence
Set the movement range.
↑ ↓←→
: Move ENT:Set ESC: Back
220, 341
Draw a tall rectangle.
Make sure that surrounding circles are not inside
the rectangle, otherwise they will be included
in the inspection.
Example