Basler A600f Bedienungsanleitung PDF herunterladen (Seite 32)

Basic Operation & Standard Features

3-8 BASLER A600

DRAFT

Why Use the Software Trigger?

At first glance, using the software trigger feature to start image exposure appears to be equivalent

to just issuing a one-shot command as described in Section 3.2.3. The difference is in the way the

camera reacts to each method. With a one-shot command, there will be some delay between the

One Shot field of the One Shot/Multi Shot control register being set to 1 and the actual start of

exposure time. This delay is required so that the camera can be properly set up to react to the

receipt of the one-shot command. With the software trigger method, there is no delay between the

Trigger field being set to 1 and the start of exposure. Exposure begins immediately when the field

value is set. So the advantage of the software trigger feature is that it gives you more precise

control of exposure start.

The Software Trigger register and the Trigger Source field of the Trigger Mode control

Because the software trigger feature is so new, the Basler BCAM 1394 Driver does not

yet include a method call to access this feature. As a work-around, you can use the

techniques described in the tutorial for the Basler Smart Features Framework Soft-

ware to directly read from or write to the Software Trigger and Trigger Mode registers.

On A600f cameras, exposure of a new image can begin while the previous image is

being read out. This is commonly referred to as “overlap mode.” Following the recom-

mended method for exposure start in Section 3.2.6 will allow you to overlap exposure

with readout and achieve the camera’s maximum frame rate.

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Basler A600f Bedienungsanleitung Seite 32