Setting The Frame Start Trigger Mode And Related Parameters - Basler GIGE VISION ace acA640-100gm/gc Manual

Exposure Time Control with the Frame Start Trigger On
When the Frame Start Trigger Mode parameter is set to on and the Trigger Source parameter is set
to software, the exposure time for each frame acquisition is determined by the value of the camera's
Exposure Time Abs parameter.
When the Frame Start Trigger Mode parameter is set to on and the trigger source is set to line 1,
the exposure time for each frame acquisition can be controlled with the Exposure Time Abs
parameter or it can be controlled by manipulating the hardware trigger signal.
For more information about controlling exposure time when using a software trigger, see
Section 6.4.2 on
For more information about controlling exposure time when using a hardware trigger, see
Section 6.4.3 on
6.4.1.3
You can set the frame start trigger mode and related parameter values from within your application
software by using the pylon API. If your settings make it necessary, you can also set the Trigger
Source parameter.
The following code snippet illustrates using the API to set the frame start Trigger Mode to On and
the Trigger Source to Line 1:
// Select the frame start trigger
Camera.TriggerSelector.SetValue( TriggerSelector_FrameStart );
// Set the mode for the selected trigger
Camera.TriggerMode.SetValue( TriggerMode_On );
// Set the source for the selected trigger
Camera.TriggerSource.SetValue ( TriggerSource_Line1 );
The following code snippet illustrates using the API to set the Acquisition Mode to Continuous, the
Frame Start Trigger Mode to Off, and the Acquisition Frame Rate to 60:
// Set the acquisition mode to continuous frame
Camera.AcquisitionMode.SetValue( AcquisitionMode_Continuous );
// Select the frame start trigger
Camera.TriggerSelector.SetValue( TriggerSelector_FrameStart );
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By default, input line 1 is selected as the source signal for the frame start
trigger.
Keep in mind that the camera will only react to frame start triggers when it is in
a "waiting for frame start trigger" acquisition status. For more information about
the acquisition status, see Section 6.1 on
page 60.
page 64.

Setting The Frame Start Trigger Mode and Related Parameters

Image Acquisition Control
page 45 and Section 6.3 on page 50.
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