Meter 9 Drawing Method
Available in all applications
Used by: Analog Input, Analog Status, Calculation
The Meter 9 drawing method enables you to represent the associated tag's value as a photorealistic meter, displaying both labeled major divisions and un-labeled minor divisions, the dial of which fluctuates according to the tag's value.
The graphic editor dialog for the Meter 9 drawing method is as shown:
(Click title to expand text)
The Tag field displays the name and description of the tag that is currently associated with this drawing method. You can use this to select a different tag or parameter to use as the data source for this drawing method.
The Tag field is only present when editing a completed drawing method object
Controls how many labeled divisions will be drawn around the meter. Each labeled division will also be drawn with a longer line.
Controls how many un-labeled divisions will be drawn within each major division. Each minor division will be drawn with a shorter line.
Use tag’s scaled min and max values
If checked, the minimum and maximum range of the meter will be controlled by the tag's scaled minimum and maximum values
Minimum Value and Maximum Value
Used to set the smallest and largest values to be displayed on the meter. By default, these values will match the tag’s scaled process values.
You can override those values to set your own scale range. For example, assume that you have a tag for which the minimum and maximum scaled process values are 20 and 80 respectively. Drawing this tag with a minimum value of 0 and a maximum value of 100 will result in a meter that shows a full range of numbers from 0 to 100, but whose needle will move only between 20 and 80.