Rockwell Automation 5370-CVIM2 Module - Manual (Page 98)

Chapter 4
Inspection Configuration
4–12
Note that the Inspection panel, unlike the Acquisition Editor panel, shows
inspection settings for a single toolset.
The parameters listed in the Inspection panel, and the methods of setting
them, are described as follows:
•
Overlap Acq/Insp –– This parameter can be set to a range of 0 to 20. If it
is set to 0, the system cannot acquire a new image until it finishes
processing the last image. If it is set to a value greater than 0, the system
can acquire new images while it is still processing a previous image.
•
Minimum Time –– This parameter sets the amount of time, in
milliseconds, that tool inspection results will be delayed following the
start of each inspection cycle. This value can be set as required to
synchronize the CVIM2 system output with the user’s process equipment.
The valid range is 0 to 5000 milliseconds.
•
Samples –– This parameter sets the size of a block of “sample”
inspections that the CVIM2 system will use to calculate statistics for a
particular tool.
•
Range Failures –– This function can be set to Include or Exclude . If
Range Failures is set to Include , the CVIM2 system will include
“failed” tool results in statistical calculations. (“Failed” means tool results
that lie beyond any of the range limits.) If
Range Failures is set to
Exclude , the system will exclude failed tool results from calculations.
Overlap Acq/Insp
This selection enables the CVIM2 system to overlap the image acquisition
and inspection processing functions, and thereby acquire and store a “burst”
of images before all images have been processed. The setting of the
Overlap
Acq/Insp parameter determines the maximum number of images that the
system is allowed to store while image processing is still in progress.
If this parameter is set to 0 when a trigger occurs, the system acquires an
image, then processes it, then acquires the next image, processes it, and so
on, in serial fashion. Thus, the total time for the entire cycle is the image
acquisition time plus the image processing time, as shown below:
Acquisition Inspection processing
Next possible
trigger
Acq.
Trigger
If this parameter is set to 1 (or more) when a trigger occurs, the system will
acquire the first image and begin processing it. The system can then begin
acquiring another image if a trigger signal arrives before the system finishes
processing the first acquired image. The setting of the
Overlap Acq/Insp
parameter determines the number of images that may be overlapped before a
trigger NAK is issued.