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Rockwell Automation 9301 Series RSView32 Users Guide User Manual

Page 491

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13–20

RSView32 User’s Guide

Line Interpolation

Line interpolation determines how a line is drawn. The choices are:

Custom Pen Width

The custom pen width affects the thickness of the line and the plot
symbols.

Check this box if you want to specify a different pen width. If you do
not specify a width, the line for the pen will be the same as the grid
lines.

This item

Does this

Automatic

Draws the appropriate type of line based on the tag type.
For example, for a digital tag, digital interpolation is
automatically used. For an analog tag, linear interpolation
is automatically used.

Linear

Draws a straight line between two points, which suggests
a gradual change from the first point to the second point.
For example:

Digital

Draws a line along the time axis at the first value then,
when the value changes, draws a vertical line to the
second value. For example:

Full Width

Draws the most recent value for a tag horizontally across
the trend. For example, if the most recent value for a tag
is 75, draws a line across the trend at 75. When the value
changes, redraws the line at the new value.

You can use full width to display values that act as high
and low setpoints.