Basler SCOUT LIGHT User Manual download pdf (Page 52)

Image Acquisition Control

44 Basler scout light

6.3 Controlling Image Acquisition

with a Hardware Trigger

You can configure the camera so that an external hardware trigger (ExTrig) signal applied to the

camera’s input line will control image acquisition. A rising edge or a falling edge of the ExTrig signal

can be used to trigger image acquisition.

The ExTrig signal can be periodic or non-periodic. When the camera is operating under control of

an ExTrig signal, the period of the ExTrig signal will determine the rate at which the camera is

acquiring images:

For example, if you are operating a camera with an ExTrig signal period of 20 ms (0.020 s):

So in this case, the acquisition frame rate is 50 fps.

The minimum high time for a rising edge trigger (or low time for a falling edge trigger) is 100

nanoseconds.

By default, input line 1 is assigned to receive an ExTrig signal.

When you are triggering image acquisition with an ExTrig signal, you must not acquire images at a

rate that exceeds the maximum allowed for the current camera settings.

For more information about setting the camera for hardware triggering and selecting the input line

to receive the ExTrig signal, see Section 6.3.2 on page 47.

For more information about determining the maximum allowed acquisition frame rate, see

Section 6.10 on page 65.

ExTrig period in seconds

------------------------------------------------------------------ Acquisition Frame Rate=

0.020

--------------- 50 fps=

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 165 166

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Basler SCOUT LIGHT User Manual Page 52