2 focus value, 3 auto exposure, 2 focus value 4.3.3 auto exposure – Banner PresencePLUS Pro COLOR—PROII Camera User Manual

Page 31: Focus value, Auto exposure

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Description

Trigger Option

Images are acquired only in reponse to a signal from an external source as configured on the

Trigger tab. Choose External if the part will be moving during the inspection to capture an

image with the same conditions as the inspection conditions.

External

Images are acquired only then the Trigger button is clicked. The Trigger button is grayed

out when any trigger option other than Manual is selected.

Manual

If you check this option, the a Trigger button allows you to browse for an image to load

from disk.

From Disk

Note:

The trigger options described above are used only in the Setup routine. Note, though, that Run mode does

require an external trigger.

4.3.2 Focus Value

The Focus value on the Focus tab is a number between 1 and 255.

To focus the lens, place the target object so that the area to be focused appears

on the center of the displayed image. You can use the image on the PC to

determine when the image is sharp enough, or you can use this Focus value

as a guide. Turn the focus ring on the lens until the Focus value is at the highest

possible number between 1 and 255. Note there is no optimal value for this

number, but it can be used as a guide if setting up more than one camera

focused on the same target.

4.3.3 Auto Exposure

When you click Start in Auto Exposure, the exposure time and gain are optimized for the current inspection and the

Status field provides feedback.

Description

Field

The following are status possibilities:

Status

Not running -- Auto exposure has not been activated since entering this screen.
Running -- Auto exposure is currently running.
Finished -- Auto exposure has run and is complete.
Image too dark -- Auto exposure could not brighten the image enough. Add more light

to the inspection, or increase the exposure manually.

31

Minneapolis, MN USA

Banner Engineering Corp.

Setup

2/2010

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