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Acquisition Control AW00118501000

62 Basler racer Camera Link

6.3 Acquisition Monitoring Tools

The camera includes the acquisition status feature and generates these output signals that you can

use to monitor the progress of line acquisition by the camera:

 the exposure active signal

 the line trigger wait signal.

The camera also allows selecting the output of the frequency converter module as output signals.

In addition, you can check the camera’s acquisition status (see below).

6.3.1 Exposure Active Signal

The camera’s Exposure Active output signal will go high when the exposure time for each line

acquisition begins and goes low when the exposure time ends. The signal can for example be used

as a flash trigger.

An example of the Exposure Active signal’s behavior on a camera using a rising edge external line

start trigger signal (ExLSTrig) and the timed exposure mode is shown in Fig. 14.

Fig. 14: Exposure Active Signal

Selecting the Exposure Active Signal as the Source Signal for the CLSpare

Output Line Using Basler pylon

You can select the exposure active signal as the source signal for the CL Spare output line:

 Use the Line Selector to select the CLSpare line.

 Set the value of the Line Source Parameter to the exposure active 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:

//Select the CL Spare line

Camera.LineSelector.SetValue( LineSelector_ClSpare );

//Set the source signal for the selected line

Camera.LineSource.SetValue( LineSource_ExposureActive );

Exposure

Line N

Exposure

Line N+1

Exposure

Line N+2

ExLStTrig

Signal

Exposure

Active Signal

Not to scale

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