Rockwell Automation Publication 450L-UM001F-EN-P - March 2022
143
Chapter 9 Connected Components Workbench Software
Fixed Blanking Rules
shows the rules for fixed blanking within a zone. The Connected
Components Workbench software automatically enforces these blanking
rules. Since the transceiver sticks are synchronized with either the first or last
lens, only one end of the stick can be blocked (not both ends).
Proceed to
Download and Upload Configurations on page 153
.
Teach Blanking Zones
The Connected Components Workbench software can learn new
arrangements of fixed blanking. To learn new arrangements, it reads the
beams, stores the new setting in a project, and then transfers the new settings
down to the safety light curtain. Follow this process:
1. Arrange the fixed object within the safety light curtain field.
2. Connect the Connected Components Workbench software to the safety
light curtain.
3. Teach the Connected Components Workbench software the new
settings.
Table 63 - Fixed Blanking Settings
Setting
Description
Blanking type
Select Fixed Blanking.
Minimum lens number
This number is the first lens, closest to the connection plug-in that participates in
the range of lenses.
Maximum lens number
This number is the last lens that participates in the range of lenses.
Object monitoring
Always enabled for fixed blanking.
Object size tolerance
The light curtain allows the object size to be smaller by 0, 1, or 2 lenses for finger
resolution and 0 or 1 (where 1 = 2 lenses) for hand resolution. Select the number of
lenses that accommodate the variation in the fixed object height and location.
Outside blanked zones
Select normal operation, reduced resolution one object, or reduced resolution two
objects for the other zones.
Table 64 - Fixed Blanking Rules
Resolution
Object Size
Tolerance
Include/Exclude
Lens 1
Min Lens Value
Max Lens Value Rules
Finger (14 mm
[0.55 in.])
0
Include
1
2,3,4…n-1
Since lens 1 is blanked, the last lens cannot be blanked.
Max lens must be greater than min lens.
Exclude
3,4,5…n
4,5,6…n
Since lens 1 is not blanked, lens 2 cannot be blanked.
Max lens must be greater than min lens.
Special case: Min lens and max lens can be n simultaneously.
-1
Include
1
2,3,4…n-1
Since lens 1 is blocked, the last lens cannot be blocked.
Max lens must be greater than min lens.
Exclude
3,4,5…n
4,5,6…n
Max lens must be greater than min lens.
Special case: Min lens and max lens can be n simultaneously.
-2
Include
1
5,6,7…n-1
Since lens 1 is blanked, the last lens cannot be blanked.
Max lens must be greater than min lens by a value of 4.
Exclude
3,4,5…n-3
6,7,8...n
Since lens 1 is not blanked, Lens 2 cannot be blanked.
Max lens must be greater than min lens by a value of 3.
Hand (30 mm
[1.18 in.])
0
Include
1
3,5,7…n-1
Since lens 1 is blanked, the last lens cannot be blanked.
Max lens must be an odd number and greater than the min value.
Exclude
4,6,8…n
5,7,9…n-1
Min lens must be an even number equal to or greater than 4.
Max lens must be an odd number greater than the min lens.
-1
Include
1
3,5,7…n-3
Since lens 1 is blocked, the last lens cannot be blocked.
Max lens must be an odd number greater than min lens.
Exclude
4,6,8…n-2
7,9…n-1
Min lens must be an even number equal to or greater than 4.
Max lens must be an odd number greater than the min lens by a value equal
to or greater than 3.
Special case: Min lens and max lens can be n simultaneously.
