Rockwell Automation 5370-CVIM2 Module - Manual (Page 295)

5 Chapter Chapter 7
Inspection Tools
7–57
The object number that replaces the “#” sign must conform to these two
requirements:
1. The object number must be a constant non–zero, positive integer.
2. The object number must be equal to, or less than, the maximum number
appearing in the window.
When the “ Multiple ” operation is selected, the “#”sign must be retained in
the formula (replacing or removing the “#” will cause incorrect results). For
details about the
Multiple operation mode, see the math tool example,
Example: Using a Single Math Tool to Generate Multiple Results, on page
7–144.
Also, see the Example: List Processing section on page 7–141 for an
additional example of using the “#” in a math formula.
**These expanded statistical results are available only when a tool is enabled
for statistics operations, as indicated by a checked
Statistics box in the tool’s
Options selection panel.
NOTE: Any formula that references an object (in the contour window)
whose number is equal to or lower than the
Max Results setting in the
Target panel, but is not found in the window, will cause the math tool to fail.
For example, if the Max Results setting is 10 and the contour window finds
only five objects, the math tool will fail if the formula references objects 6
through 10.
An image tool performs processing operations on a portion of the image,
using spatial (geometric) transformations, convolution, or image arithmetic,
along with multiple stages of morphology. It temporarily stores the processed
image in a destination image buffer, which can be accessed by tools that
follow the image tool in the toolset edit panel.
Figure 7.49 (page 7–58) is an example that illustrates how an image tool
could be set up, using source and destination images, to provide a processed
image to a tool that follows it in the toolset edit panel.
In this example, the image tool ( Tool 3 ) designates C1 (under the “ S1 ”
heading) as its image source and P1 (under the “ Dest ” heading) as its
destination buffer. The following window tool ( Tool 4 ) designates P1 –– the
processed image –– as its image source. (Note that the gage tool ( Tool 1 ) and
the first window tool ( Tool 2 ) cannot receive the image from the image tool,
since they both precede the image tool in the toolset edit panel.)
Image Tool