Baumer VCXG .I - Sensor Shutter Mode Details; Global Reset Shutter Mode

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6.1.2 Sensor Shutter Mode (only cameras with Rolling Shutter sensor)
Sets the sensor shutter mode of the camera. The sensor shutter mode depends on the
Trigger Mode.
An explanation of the various sensor shutter modes can be found in the next chapters.
VCXG / VCXU (only cameras with rolling shutter sensors)
Camera Type
(Sensor)
Trigger Mode = On Trigger Mode = Off
Monochrome
Shutter Mode Readout Mode Shutter Mode Readout Mode
VCXG-201M.R
Global Reset Non-overlapped Global Reset Non-overlapped
Rolling Non-overlapped Rolling Overlapped
VCXU-125M.R
Global Reset Non-overlapped Global Reset Non-overlapped
Rolling Non-overlapped Rolling Overlapped
VCXU-201M.R
Global Reset Non-overlapped Global Reset Non-overlapped
Rolling Non-overlapped Rolling Overlapped
Color
VCXG-201C.R
Global Reset Non-overlapped Global Reset Non-overlapped
Rolling Non-overlapped Rolling Overlapped
VCXU-125C.R
Global Reset Non-overlapped Global Reset Non-overlapped
Rolling Non-overlapped Rolling Overlapped
VCXU-201C.R
Global Reset Non-overlapped Global Reset Non-overlapped
Rolling Non-overlapped Rolling Overlapped
6.1.2.1 Global Reset
Shutter
Trigger
Line 1
Exposure
Readout
...
Time
Line 2
Line 3
Line 4
Line 5
Line 6
Line 7
Line n
Line n-3
Line n-2
Line n-1
t
TriggerDelay
For cameras with rolling shutter sensor and set shutter mode Global Reset, for each frame
all of the lines start exposure at the same time but the end of exposure is delayed by the
offset of the previous line's readout. The exposure time for each line gradually lengthens.
Data readout for each line begins immediately following the line's exposure. The readout
time for each line is the same, but the start and end times are staggered.
An advantage of this shutter mode is a reduction in image artifacts typical of rolling
shutters. However, because exposure lengthens throughout the frame, there may be a
gradual increase in brightness from top to bottom of an image.