Basler daA1280-54bc, User Manual

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AW00136902000 Image Acquisition Control
Basler dart BCON 59
9.2 The Frame Start Trigger
The frame start trigger is used to begin frame acquisition. Assuming that the camera is in a "waiting
for frame start trigger" acquisition status, it will begin a frame acquisition each time it receives a
frame start trigger signal.
In order for the camera to be in a "waiting for frame start trigger" acquisition status:

The AcquisitionMode parameter must be set correctly.

A proper AcquisitionStart command must be applied to the camera.
For more information about the AcquisitionMode parameter and about AcquisitionStart and
AcquisitionStop commands, see Section 9.1 on
page 57 .
There are three ways to operate the camera using frame start trigger signals:

Frame start trigger signals are generated internally by the camera, and frame acquisition will
be done automatically. This is also known as the
"free run" . For more information, see
Section 9.2.1.1 on page 59 .

Frame start trigger signals are applied via software . Each time a TriggerSoftware command is
executed via the pylon API, the camera will begin a frame acquisition. For more information,
see Section 9.2.2 on
page 62 .

Frame start trigger signals are applied via hardware . Each time a proper electrical signal is
applied to the input line, the camera will begin a frame acquisition. For more information, see
Section 9.2.3 on
page 63 .
9.2.1 Trigger Mode
The main parameter associated with the frame start trigger is the TriggerMode parameter. The
TriggerMode parameter has two available settings: Off and On.
9.2.1.1 TriggerMode = Off (Free Run)
When the TriggerMode parameter is set to Off, the camera will generate all required frame start
trigger signals internally, and you do not need to apply frame start trigger signals to the camera. This
status is also known as "free run".
With the trigger mode set to Off, the way the camera will operate the frame start trigger depends on
the setting of the camera’s AcquisitionMode parameter. If the AcquisitionMode parameter is set to

SingleFrame , the camera will automatically generate a single frame start trigger signal
whenever it receives an AcquisitionStart command.

Continuous , the camera will automatically begin generating frame start trigger signals when it
receives an AcquisitionStart command. The camera will continue to generate frame start
trigger signals until it receives an AcquisitionStop command.