Rockwell Automation 5370-UPK CVIM USER-PAK Option - Manual (Page 75)

Chapter 7
Creating Custom Runtime Displays
7–24
Note these additional considerations when setting Upper and Lower limits:
•
The limits you set are for the Graph viewport itself, and therefore
encompass all variables plotted in the viewport. You cannot set Upper
and Lower limits ranges for each variable individually. Therefore, be
sure to accommodate the results of all variables you are plotting when
setting the
Upper and Lower limits.
•
Results which go beyond the Upper limit are plotted along the top of the
viewport. Results which go beyond the Lower limit are plotted along the
bottom of the viewport.
To set either the Upper or Lower limit:
•
Pick the Upper or Lower box, as appropriate, on the Define Graph
menu, which causes the calculator pad to appear.
•
Use the calculator pad to enter the range limit.
Calculator Pad
Upper box
Valid Range: The valid range for the Upper and Lower limits are
–32767 to 32767, and the difference between the two limits must not
exceed 32767. If you try to enter a number which is not valid, such as a
Lower limit value which is higher than the current Upper limit, the
calculator pad will flash the message – Value Out of Range.
Defining the Event
For each Graph viewport you define, you must specify the Event . In
defining the event, you are defining the conditions which must be met, upon
completion of an inspection, in order for the
Graph viewport variables to be
updated. You define the event using the Event menu. See Chapter 8 for
more information on setting the Event .
For example, the default setting specifies that the Graph viewport is always
updated upon completion of an inspection. You can define other conditions –
you can specify that the viewport is updated every 100 inspections, for
example.