Camera Operation & Features
29
PixeLINK PL-A780
Document No.: 04646-01
MACHINE VISION CAMERA
SYSTEM GUIDE
Copyright © 2004 PixeLINK
All Rights Reserved
Note that for Format 0 operation, the sensor ROI is set to 1920 x 1440 with the Pixel
Addressing set to 3 or 6 for Modes 3 and 1 respectively. While in Format 0, the features that
would affect the ROI size, position, Pixel Addressing and pixel format (color coding) are
disabled.
5.1.3 IIDC Basic Features
The PL-A780 camera supports the following basic features:
•
Color Coding (color versions only)
•
Frame Rate
•
Gain
•
Gamma
•
Memory Channel
•
ROI
•
Saturation (color versions only)
•
Shutter
•
Temperature
•
Trigger
•
Trigger Delay
•
White Balance (color versions only)
•
White Shading Compensation (color versions only)
Details about the registers and controls for these features can be found in the IIDC
specification. The following sections provide a description of how the features apply to
the PL-A780 camera, their parameters and limits.
Note that the IIDC specification allows two ways to control camera features. Feature
values can be written into the feature control registers or into absolute value registers.
The feature control registers are integer based and only allow positive integer values.
The absolute value registers use floating point numbers and can represent engineering
units. The PixeLINK PL-A780 camera will accept both methods of control. However,
some third party software applications only use the feature control register values. As a
result, the control sliders will have strange limits. For more information on the two types
of registers, see Section 6.5.2 and Section 6.5.3 on page 44.
Table 10 below shows the minimum and maximum limits on the IIDC features that use
feature control registers and the corresponding absolute value register values. Note that
the absolute value registers may have different limits as outlined in the following
sections.
