37
8.6.2 Trigger Input / Trigger Delay
Trigger signals are used to synchronize the camera exposure and a machine cycle or, in
case of a software trigger, to take images at predefined time intervals
.
Different trigger
sources can be used:
Line0
FrameGrabberLine1
Line1
FrameGrabberLine2
Line2
FrameGrabberLine3
FrameGrabberLine0
SW-Trigger
There are three types of modes. The timing diagrams for the three types you can see
below.
Normal Trigger with adjusted Exposure
Trigger (valid)
Exposure
Readout
Time
A
B
C
Pulse Width controlled Exposure
Trigger (valid)
Exposure
Readout
Time
B
C
Edge controlled Exposure
Trigger (valid)
Exposure
Readout
Time
B
C
Figure 36 ▲
Trigger signal, valid for
Baumer cameras.
high
low
U
t
0
4.5V
11V
30V
Camera in trigger
mode:
A - Trigger delay
B - Exposure time
C - Readout time