Image Acquisition Control AW00011916000
124 Basler scout GigE
// Note: as long as the Trigger Selector is set to FrameStart, executing
// a Trigger Software command will apply a software frame start trigger
// signal to the camera
You can also use the Basler pylon Viewer application to easily set the parameters.
For more information about the pylon Viewer, see Section 3.1 on page 43.
9.5.3 Using a Hardware Frame Start Trigger
(Standard Mode)
9.5.3.1 Introduction
If the Trigger Mode parameter for the frame start trigger is set to on and the Trigger Source
parameter is set to e.g. input line 1, an externally generated electrical signal applied to input line 1
on the camera will act as the frame start trigger signal for the camera. This type of trigger signal is
generally referred to as a hardware trigger signal or as an external frame start trigger signal
(ExFSTrig).
A rising edge or a falling edge of the ExFSTrig signal can be used to trigger frame acquisition. The
Trigger Activation parameter is used to select rising edge or falling edge triggering.
Assuming that the camera is in a "waiting for frame start trigger" acquisition status, frame
acquisition will start whenever the appropriate edge transition is received by the camera.
When the camera receives a hardware trigger signal and begins exposure, it will exit the "waiting
for frame start trigger" acquisition status because at that point, it cannot react to a new frame start
trigger signal. As soon as the camera is capable of reacting to a new frame start trigger signal, it
will automatically return to the "waiting for frame start trigger" acquisition status.
When the camera is operating under control of an ExFSTrig signal, the period of the ExFSTrig
signal will determine the rate at which the camera is acquiring frames:
For example, if you are operating a camera with an ExFSTrig signal period of 20 ms (0.020 s):
So in this case, the frame rate is 50 fps.
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