Beam Counting Direction - Cedes ObjectC 100 I/O Programmer's Manual

ObjectC 100
4.2.

Beam counting direction

For all of the functions described above, the individual beams must have a numbering system. This system
depends on the orientation of the light curtain and is explained in Figure 10.
There are two ways to number the beams in the Object100 light curtain:
•
Standard beam counting direction: Beam 1 (first beam) is located at the connector end of the light curtain.
•
Reverse beam counting direction:
(inverted).
Figure 10: Object100 beam definitions and beam counting direction
Table 51: Reference to Figure 10
Parameter Description
These beams will be totally
Blanked ignored, and not used in any
evaluation process
Overheight Beams which when interrupted,
cause the Overheight output to
be activated
24
Beam 1 (first beam) is located at the physical end of the light curtain
Standard beam counting direction
Reference beam
"fb_offset"
"lb_offset"
"oh"
Reverse beam counting direction
Explanation
Number of blanked beams from the beginning of
the monitoring field
Number of blanked beams from the end of the
monitoring field
Lowest beam of the Overheight zone (incl.)
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