Image Acquisition Control
136 Basler scout
You should be aware that if the Acquisition Frame Rate Abs parameter is enabled, the operation of
the trigger ready signal will be influenced by the value of the parameter:
If the value of the parameter is greater than zero but less than the maximum allowed, the
trigger ready will go high at the rate specified by the parameter value. For example, if the
parameter is set to 10, the trigger ready signal will go high 10 times per second.
If the value of the parameter is greater than the maximum allowed acquisition frame rate with
the current camera settings, the trigger ready signal will work as described above and will go
high at a point that represents the maximum acquisition frame rate allowed.
By default, the trigger ready signal is assigned to physical output line 2 on the camera. However,
the assignment of the trigger signal to a physical output line can be changed.
Selecting the Trigger Ready Signal as the Source Signal for an Output Line
The trigger ready signal can be selected to act as the source signal for e.g.output line 1. Selecting
a source signal for the output line is a two step process:
Use the Line Selector to select output line 1.
Set the value of the Line Source Parameter to the trigger ready output signal.
You can set the Line Selector and the Line Source parameter value from within your application
software by using the Basler pylon API. The following code snippet illustrates using the API to set
the selector and the parameter value:
Camera.LineSelector.SetValue( LineSelector_Out1 );
Camera.LineSource.SetValue( LineSource_TriggerReady );
You can also use the Basler pylon Viewer application to easily set the parameters.
For more information about changing the assignment of camera output signals to physical output
lines, see Section 6.2 on page 67.
For more information about the electrical characteristics of the camera’s output lines, see
Section 5.7.2 on page 60.
For more information about the standard and legacy image acquisition control modes, see
Section 7.1 on page 77.
If you attempt to start an image acquisition when the trigger ready signal is low,
the camera will simply ignore the attempt.
The trigger ready signal will only be available when hardware triggering is
enabled.
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