User`s manual
Image Acquisition Control
74 Basler aviator Camera Link
Camera.AcquisitionFrameRateEnable.SetValue( false );
// 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_CC1 );
// Set the trigger activation mode to rising edge
Camera.TriggerActivation.SetValue( TriggerActivation_RisingEdge );
// Set for the trigger width exposure mode
Camera.ExposureMode.SetValue( ExposureMode_TriggerWidth );
// Frame acquisition will start each time the externally generated
// frame start trigger signal (ExFSTrig signal)goes high
You can also use the Basler pylon Viewer application to easily set the parameters.
For more information about the pylon API and the pylon Viewer, see Section 4 on page 45.
Setting the Parameters Using Direct Register Access and Applying the Signal
To set the parameters needed to perform hardware frame start triggering via direct register access
(with the trigger mode for the acquisition start trigger set to off):
Set the value of the Trigger Mode Acquisition Start register to off.
Set the value of the Acquisition Frame Period Enable register to false.
(This will disable the camera’s ability to control the frame period internally and allow you to
control the frame rate with an external signal.)
Set the value of the Trigger Mode Frame Start register to On.
Set the value of the Trigger Source Frame Start register to receive the external trigger signal
on CC1, CC2, or CC4, or on input line 1 or input line 2.
Set the value of the Trigger Activation Frame Start register to rising edge or falling edge as
desired.
Set the value of the Exposure Mode register to timed or to trigger width.
If the mode is set to timed, set the value of the Exposure Time Raw register as desired.
A value in a raw register is simply an integer value with no units. To determine what the actual
setting will be, you must multiply the value in the raw register by the camera’s time base. The
time base on aviator cameras is 1 µs.
For example, if you set the Exposure Time Raw register to 1000, the exposure time would be
1000 µs (1000 x 1 µs = 1000 µs).
Apply the appropriate externally generated electrical signal (ExFSTrig signal) to the selected trigger
source.
For more information about changing settings via direct register access, see Section 4 on page 45.