2 focus value, 3 auto exposure, 2 focus value 4.3.3 auto exposure – Banner PresencePLUS P4 Series User Manual

Page 31

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Description

Trigger Option

The sensor will update continuously in Setup mode.

Continuous

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.

31

Banner Engineering Corp. - Minneapolis, MN USA - www.bannerengineering.com

Tel: 763.544.3164

P/N 000000

Setup

7/2009

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