Rockwell Automation 5370-CVIM2 Module - Manual (Page 160)

6 Chapter
6–1
Reference Tools
This chapter provides detailed information about the reference line tool, the
reference window tool, the rotation finder tool, and the build reference tool.
All of these tools detect workpiece shift and/or rotation in the image field
and apply shift and/or rotation compensation to all associated inspection
tools so that they maintain the same relation to the workpiece image before
the workpiece shifted and/or rotated.
NOTE: A basic rule applies to a reference tool’s sequence position in the
toolset edit panel. It is this: A reference tool must always precede all tools
that are intended to derive position compensation from it. Thus, for example,
if tool #1 were a gage, tool #2 a window, tool #3 a rotation finder, and tool
#4 another gage, only tool #4 could be referenced to tool #3, the rotation
finder.
This section discusses the reference line tool and the shift and rotation
compensation that it can provide to other tools.
Once you have selected a reference line tool, you can configure it for an
inspection application by picking the
Ref. Line field in the toolset edit panel.
When you do, the reference line edit panel appears, as shown by the example
in Figure 6.1 (page 6–2).
Note that in Figure 6.1 the reference line tool is shown in its default position
on the screen. Note also that the default reference line tool “operation” is X
only –– a single operation. (Other tool operations use two or three lines or
axes. All of the reference line tool operations are illustrated later in this
chapter.)
The reference line edit panel (named “ Toolset 1.Tool 3 Edit ” in Figure 6.1)
contains the following data fields and buttons:
•
Operation –– This field provides access to the selection of one of the six
reference line tool “operations.”
•
Nominal –– When you pick this field, the currently selected and
configured reference line tool stores the current part position, to be used
during inspection to compute the workpiece’s offset from the “nominal”
position.
•
Refline X –– This button accesses the configuration panel for the X–axis
of the reference line.
•
Refline Y –– This button accesses the configuration panel for the Y–axis
of the reference line.
Reference Line Tool