Baumer VCXG .I - ExposureActive Signal Management

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7.6.5 ExposureActive(FlashSignal)
This signal is managed by exposure of the sensor.
Furthermore, the falling edge of the ExposureActive signal can be used to trigger a move-
ment of the inspected objects. Due to this fact, the span time used for the sensor readout
t
readout
can be used optimally in industrial environments.
Depending on Sensor Shutter Mode (only cameras with Rolling Shutter sensors), the
ExposureActive signal is active at different times.
Sensor Shutter Mode: Global Reset
Shutter
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
Trigger
ExposureActive
t
TriggerDelay (jitter possible)
Shading of extraneous
light necessary
Sensor Shutter Mode: Rolling Shutter
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
ExposureActive
t
TriggerDelay (jitter possible)
Notice
In Sensor Shutter
Mode: Global Reset
t
TriggertDelay
is constant
and independent of
image settings.
Notice
In Sensor Shutter
Mode: Rolling Shutter
t
TriggertDelay
is not con-
stant (expect t
exposure
<
t
Readout
).
t
TriggerDelay
depends on
image settings like:
▪ ExposureTime
▪ PixelFormat
▪ ...