Rockwell Automation 5370-CVIM2 Module - Manual (Page 181)

Chapter 6
Reference Tools
6–22
Offset
The “offset” function enables you to identify one point along each reference
line axis as the specified feature to provide shift and/or rotation
compensation to the associated inspection tools.
The current feature location is identified on the screen by a “+” symbol. You
can change the offset location by picking the
Offset menu field successively.
When you pick the Offset menu field successively, the feature marker (+)
moves along the reference line axis in the selected search direction. The
starting offset location is always labeled “fixed.” The next offset location is
always labeled “center.”
The remaining offset locations, when All Edges is the selected define feature
mode, are numbered as follows: edge #1. 1.0; midpoint #1, 1.5; edge #2, 2.0;
midpoint #2, 2.5, and so on, until the last midpoint location is reached. After
that, the offset marker returns to the starting location (“fixed”) and the cycle
begins again. Figure 6.14 (page 6–16) illustrates the offset locations for the
All Edges mode.
Nominal (“Learn”) Function
When the Nominal field in the reference line tool edit panel is picked, it
causes the currently selected and configured reference line tool to store the
“nominal” position of the X– and Y–axis coordinate data, as well as angular
data, and to display that data in the
Nominal field. In order to use this
feature, however, you must first configure the reference line tool completely.
When you pick the Nominal field, the “learned” data appearing in the
Nominal field indicates, from left to right, an X–axis coordinate, a Y–axis
coordinate, and an angle (
q).
NOTE: If the warning message shown in Figure 6.19 appears after you pick
the
Nominal field, it indicates a problem with some aspect of the feature
configuration. Pick the button to exit this message.
Figure 6.19 Warning Message: One or More Features Not Found