Rockwell Automation 5370-CVIM2 Module - Manual (Page 378)

Chapter 7
Inspection Tools
7–140
Figure 7.107 Example: Four Window Tools Configured to Corner Objects
The formula is set up on the formula entry keyboard as shown in
Figure 7.108.
Figure 7.108 Example: Formula Configured to Sum Results From Four Window Tools
With the formula set up as shown in Figure 7.108, when you pick the
Nominal field in the math tool edit panel, the system performs one “test”
operation of the formula and returns a total of 4.000.
By setting the window tools’ Fail High and Fail Low range limits to 1.000,
each window tool will yield a “Pass” condition if it detects a single object, or
a “Fail” result if it detects no object, or more than one object.
By setting the math tool’s Fail High and Fail Low range limits to 4.000, the
math tool will yield a “Pass” condition if all four windows detect a single
object, or a “Fail” result is any window fails.