Acquisition Frame Count - Basler ace acA640-90gm User Manual

Image Acquisition Control
Frame Count parameter setting. The camera will then return to the "waiting for acquisition start
trigger" acquisition status. In order to acquire more frames, you must apply a new acquisition start
trigger signal to the camera to exit it from the "waiting for acquisition start trigger" acquisition status.
When the Trigger Mode parameter for the acquisition start trigger is set to on, you must select a
source signal to serve as the acquisition start trigger. The Trigger Source parameter specifies the
source signal. The available selections for the Trigger Source parameter are:
Software - When the source signal is set to software, you apply an acquisition start trigger
signal to the camera by executing an Trigger Software command for the acquisition start
trigger on the host PC.
Line 1 - When the source signal is set to line 1, you apply an acquisition start trigger signal to
the camera by injecting an externally generated electrical signal (commonly referred to as a
hardware trigger signal) into physical input line 1 on the camera.
If the Trigger Source parameter for the acquisition start trigger is set to Line 1, you must also set
the Trigger Activation parameter. The available settings for the Trigger Activation parameter are:
Rising Edge - specifies that a rising edge of the electrical signal will act as the acquisition start
trigger.
Falling Edge - specifies that a falling edge of the electrical signal will act as the acquisition start
trigger.
When the Trigger Mode parameter for the acquisition start trigger is set to
on, the camera's Acquisition Mode parameter must be set to continuous.
7.3.2

Acquisition Frame Count

When the Trigger Mode parameter for the acquisition start trigger is set to on, you must set the value
of the camera's Acquisition Frame Count parameter. The value of the Acquisition Frame Count can
range from 1 to 255.
With acquisition start triggering on, the camera will initially be in a "waiting for acquisition start
trigger" acquisition status. When in this acquisition status, the camera cannot react to frame start
trigger signals. If an acquisition start trigger signal is applied to the camera, the camera will exit the
"waiting for acquisition start trigger" acquisition status and will enter the "waiting for frame start
trigger" acquisition status. It can then react to frame start trigger signals. When the camera has
received a number of frame start trigger signals equal to the current Acquisition Frame Count
parameter setting, it will return to the "waiting for acquisition start trigger" acquisition status. At that
point, you must apply a new acquisition start trigger signal to exit the camera from the "waiting for
acquisition start trigger" acquisition status.
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