IAI SP-20000M-PMCL User Manual page 64

SP-20000-PMCL User Manual (Ver. 3.1)
Exposure Start Position [Unit:
Line]
Exposure Start Position [Unit:
Line]
Exposure Time Max value
Notes:
If V-Binning is set to On, the horizontal frequency is 1/2. However, as the effective image period is not
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changed, the Exposure Time setting step is approx. 8 steps for 1X8 –1Y and approx. 16 steps for
1X4 –1Y.
The default setting for Camera Link Pixel Clock is 80MHz.
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The exposure start position calculate numbers of line which Exposure Active Start Edge passes, if
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the upper part of the previous video is 1 line. However, it the frame rate is overlapped with Exposure
Start, maximum 1 line delay is occurred, and differences may be happened.
The result of calculation and actual camera operation may differ by 1 to 2 μs.
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Exposure Time Effective Step value when overlapped is basic figure. It may be increased or
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decreased due to ROUND figures.
In overlapped operation, shutter noise occurring at the start of the exposure period will appear in the
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video (Approx. 70LSB/10bit/24dB as the maximum)
Camera
Binning Continuous trigger readout / exposure overlapped period Exposure
Link Pixel
Vertical
Clock
([Height] - 1 - (ROUNDOWN( ( [Exposure Time] - [1Line Control Start
80MHz Exposure Time value] )×(10^-6)×[Camera Link Clock
Frequency:80MHz]÷654.63)))
1 (Off)
[Height] - 1 - (ROUNDDOWN( ( [Exposure Time] - [1Line Control Start
60MHz Exposure Time value] ) ×(10^-6)×[Camera Link Clock
Frequency:60MHz]÷659.31))
[Height] - 0.5 - (ROUNDDOWN( ( [Exposure Time] - [1Line Control Start
80MHz
Exposure Time value]÷1309.27)÷2)
2 (On)
[Height] - 0.5 - (ROUNDDOWN( ( [Exposure Time] - [1Line Control Start
60MHz Exposure Time value] ) ×(10^-6)×[Camera Link Clock
Frequency:60MHz]÷1318.61)÷2)
ROUNDDOWN([Frame Rate (Time)] - (20600÷[Camera Link Clock
80MHz
Frequency:80MHz]×10^6 ))
1 (Off),
2 (On)
ROUNDDOUWN([Frame Rate (Time)] - (20600÷[Camera Link Clock
60MHz
Frequency:60MHz]×10^6 ))
Time value calculation formula
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Main Functions