Measuring light grids (10 mm beam spacing)
OY51
17
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
[NBO] = 3
3
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
[NBO] = 3
Fig. 5: Example – NBO
Free light beam
Interrupted light beam
1:
Number of light beams
2:
Detection direction
3:
Object
NBO:
Process value
9.3.5 NCBO – number of consecutive beams occupied
The process value [NCBO] indicates the number of consecutive/contiguous beams occupied. If there
are several non-contiguous interrupted sections, the process value [NCBO] refers to the section with
the most consecutive beams occupied.
The following examples are for illustration purposes.
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
[NCBO] = 3
3
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
[NCBO] = 5
3
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
[NCBO] = 3
Fig. 6: Example – NCBO
Free light beam
Interrupted light beam
1:
Number of light beams
2:
Detection direction
3:
Object
NCB
O:
Process value
9.3.6 Tolerance
A tolerance between zero and the max. value (depending on the number of beams) can be selected
via IO-Link.
2
2
3
3
1
OFF
OFF
ON
1:
Switch point [SP1]
2:
Tolerance [SSCx TOL]
3:
Outside measuring range
GB
