Basler Scout - Using a Hardware Acquisition Start Trigger (Legacy Mode); Introduction

Image Acquisition Control
Basler scout 109
Camera.TriggerSource.SetValue ( TriggerSource_Software );
// Set for the timed exposure mode
Camera.ExposureMode.SetValue( ExposureMode_Timed );
// Set the exposure time
Camera.ExposureTimeAbs.SetValue( 3000 );
// Execute an acquisition start command to prepare for frame acquisition
Camera.AcquisitionStart.Execute( );
while ( ! finished )
{
// Execute a Trigger Software command to apply an acquisition start
// trigger signal to the camera
Camera.TriggerSoftware.Execute( );
// Retrieve acquired frame here
}
Camera.AcquisitionStop.Execute( );
// Note: as long as the Trigger Selector is set to AcquisitionStart, executing
// a Trigger Software command will apply a software acquisition start trigger
// signal to the camera
For detailed information about using the pylon API, refer to the Basler pylon Programmer’s Guide
and API Reference.
You can also use the Basler pylon Viewer application to easily set the parameters.
For more information about the pylon Viewer, see Section 3.1 on page 43.
7.6.3 Using a Hardware Acquisition Start Trigger
(Legacy Mode)
7.6.3.1 Introduction
If the Trigger Mode parameter for the acquisition start trigger is set to on and the Trigger Source
parameter is set to e.g. input line 1, an externally generated electrical signal applied to input line 1
on the camera will act as the acquisition start trigger signal for the camera. This type of trigger signal
is generally referred to as a hardware trigger signal or as an external acquisition start trigger signal
(ExASTrig).
A rising edge or a falling edge of the ExASTrig signal can be used to trigger frame acquisition. The
Trigger Activation parameter is used to select rising edge or falling edge triggering.
Assuming that the camera is in a "waiting for acquisition start trigger" acquisition status, frame
acquisition will start whenever the appropriate edge transition is received by the camera.
When the camera receives a hardware trigger signal and begins exposure, it will exit the "waiting
for acquisition start trigger" acquisition status because at that point, it cannot react to a new