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AW00118501000 Acquisition Control

Basler racer Camera Link 49

Fig. 10: Line Acquisition with a Software Line Start Trigger and Exposure Mode Set to Timed

When you are using a software trigger signal to start each line acquisition, the line rate will be

determined by how often you apply a software trigger signal to the camera, and you should not

attempt to trigger line acquisition at a rate that exceeds the maximum allowed with the current

camera settings. (There is a detailed explanation about the maximum allowed line rate at the end

of this chapter.) Software line start trigger signals that are applied to the camera when it is not ready

to receive them will be ignored.

Section 6.1.4.2 includes more detailed information about applying a software line start trigger signal

to the camera using Basler pylon or via direct register access.

For more information about determining the maximum allowed line rate with the current camera

settings, see Section 6.4 on page 66.

6.1.4.2 Setting the Parameters Related to Software Line Start

Triggering and Applying a Software Trigger Signal

Setting the Parameters and Applying the Signal Using Basler pylon

You can set all of the parameters needed to perform software line start triggering from within your

application software by using the Basler pylon API. The following code snippet illustrates using the

API to set the parameter values and execute the commands related to software line start triggering.

// Disable the acquisition line rate parameter (this will disable the camera’s

// internal line rate control and allow you to control the line rate with

// software line start trigger signals)

Camera.AcquisitionLineRateEnable.SetValue( false );

// Select the line start trigger

Camera.TriggerSelector.SetValue( TriggerSelector_LineStart );

// Set the mode for the selected trigger

Camera.TriggerMode.SetValue( TriggerMode_On );

// Set the source for the selected trigger

Camera.TriggerSource.SetValue ( TriggerSource_Software );

Exposure

(duration determined by the

exposure time parameter or

Software Line Start

Trigger Signal Received

Line

Acquisition

Exposure

Software Line Start

Trigger Signal Received

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Basler A400K Manual de usuario Pagina 57