Basler A640F, User Manual

Page: 44 / 188

Basic Operation & Standard Features
3-22
BASLER A640
f
DRAFT
a value for the Width field and a value for the Height field of the Image Size control register for
Format 7, Mode 0.
If you working with a camera set for Format 7, Mode 1, the location of the area of interest is defined
by setting a value for the Left field and a value for the Top field of the Image Position control
register for Format 7, Mode 1 (see page
4-43 ). The size of the area of interest is defined by setting
a value for the Width field and a value for the Height field of the Image Size control register for
Format 7, Mode 1.
To use the entire CCD array in
A641
f
monochrome cameras, set the value for Left to 0, the value
for Top to 0, the value for Width to 1624 and the value for Height to 1236.
To use the entire CCD array in
A641
fc
cameras, set the value for Left to 0, the value for Top to 0,
the value for Width to 1624 and the value for Height to 1234.
3.4.1 Changing AOI Parameters “On-the-Fly”
Making AOI parameter changes “on-the-fly” means making the parameter changes while the
camera is capturing images continuously. On-the-fly changes are only allowed for the parameters
that determine the position of the AOI, i.e., the parameters for top and left. Changes to the AOI
size are not allowed on-the-fly.
The camera’s response to an on-the-fly change in the AOI position will vary depending on the way
that you are operating the camera:
• If the exposure time is
≥
100 µs, the changes will take effect on the next trigger after the
changes are received by the camera.
• If the exposure time is < 100 µs and the camera is running with non-overlapped exposure
(see Section 3.2.7 ) the changes will take effect on the next trigger after the changes are
received by the camera.
• If the exposure time is < 100 µs and the camera is running with overlapped exposure, when
the changes are received by the camera, the camera will delay the triggering of the next
image until transmission of the current image is complete. When transmission of the current
image is complete, the camera will change the AOI position, will trigger the next image, and
will resume running in overlapped mode.
L
The sum of the setting for Left plus the setting for Width must not exceed 1624 on
A641
f
monochrome cameras or on
A641
fc
color cameras.
The sum of the setting for Top plus the setting for Height must not exceed 1236 on
A641
f
monochrome cameras or 1234 on
A641
fc
color cameras.
When you are setting the AOI on an
A641
fc
color camera:
• The setting for Width must be divisible by 2.
• The setting for Height must be divisible by 2.
• The setting for Left must be zero or be divisible by 2.
• The setting for Top must be zero or be divisible by 2.