CM-200 MCL / CB-200 MCL
6.2.4.
Partial Scanning
Partial scan allows higher frame rate by reading out a smaller center portion of the image. This is
particularly useful when inspecting objects that do not fill the whole height of the image.
Fast-dump period
Fast-dump period
Normal scan period
Vertical Timing
The below diagram and table provide vertical timing information for the fixed partial scan
settings, 1/2, 1/4, 1/8 and 2/3
.
LVAL
FVAL
DVAL
DATA
3L
CCD
Exposure
EEN
XEEN
A
B
C
Partial Frame Readout
Values for vertical timing in partial scan continuous mode.
B (L)
FVAL Low
(L)
A
C
Total line frame rate
AREA
(L)
(L)
(L)
(L)
Start line
End line
618
1/2 3 46
45 712 43.89
309 924
310
1/4 3 68
67 448 69.75
463 773
156
1/8 3 79
78 316 98.89
540 696
824
2/3 3 31
30 888 35.19
206 1030
Remark! The color sequence for CB-200MCL differs in partial scan. Refer to chapter 6.1.7.
Fig. 15. Vertical timing for partial scanning
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