Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 494)

Configuring trends

13–23
Example: Shading with three pens
The upper pen, Pen 2, has a constant value of 75 and the lower pen,
Pen 3, has a constant value of 25. Pen 1 represents the tag called
VIN_LEVEL. The trend will be shaded whenever Pen 1 goes above
Pen 2 or below Pen 3. A plot for this trend looks like this:
To produce the shading shown above, the following settings were
used:
40064
Pen 1
Pen 2
Pen 3
Pen Tag Name or
Value
Shading
Upper Bound Lower Bound
Pen 1 VIN_LEVEL Pen 2 Pen 3
Pen 2 75
Pen 3 25