Baumer EXG - Trigger Input; Trigger Source

24
4.6.2. TriggerInput
Trigger signals are used to synchronize the camera exposure and a machine cycle or, in
case of a software trigger, to take images at predened time intervals�
A
Trigger (valid)
Exposure
Readout
Different trigger sources can be used here�
4.6.3. TriggerSource
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Each trigger source has to be activated separately. When the trigger mode is activated,
the hardware trigger is activated by default.
Figure30▲
Trigger signal, valid for
Baumer cameras.
high
low
U
t0
4.5V
11V
30V
Figure31►
Camera in trigger
mode:
A - Trigger delay
B - Exposure time
(global shutter)
B*- Exposure time
(rolling shutter)
C - Readout time
TriggerDelay:
The trigger delay is a
exible user-dened delay
between the given trigger
impulse and the image cap-
ture. The delay time can
be set between 0.0 μsec
and 2.0 sec with a stepsize
of 1 μsec. In the case of
multiple triggers during the
delay the triggers will be
stored and delayed, too.
The buffer is able to store
up to 512 trigger
signals during the delay.
Your benets:
No need for a perfect ▪
alignment of an external
trigger sensor
Different objects can be ▪
captured without hardware
changes
Figure32►
Examples of possible
trigger sources.