Options on the Vertical Position tab

The following table shows options on the tab.
Options
Description
Expression
Specify a tag name or an expression that will evaluate to numeric values at runtime.
An expression is a mathematical or logical equation that returns a value. It can contain tag names; constants; mathematical, relational, logical and bitwise operators; and built-in alarms and events functions.
A tag name can be used as an expression.
Expression range
Specify the range of values for the expression, including:
  • Use tag's min and max property values
    If you have specified a tag in the Expression box, click this button to use the tag's minimum and maximum values to define the range of values for the expression. This option only applies to tags for which minimum and maximum can be defined, such as HMI tags.
  • Use constant
    To use constant numeric values to define a range of values, click this button and specify values for minimum and maximum.
  • Read from tags
    To define the range of values using one tag's value for the minimum and another tag's value for the maximum, click this button and then specify a tag for minimum and another for maximum. Using this option, when the animation for an object is started, the tags' values are read once to set the minimum and maximum values. The tags are not read again after, nor are the minimum and maximum values changed.
Vertical offset (Pixels)
Determines the objects position on the screen. The
At Minimum
 and
At Maximum
 fields determine where the object is to be at the expression's minimum and maximum values.
  • At minimum
    Specify the starting position of the object in pixels, or drag the object to its start position then click the check box. The offset value, in pixels, will reflect the object's new position.
  • At maximum
    Specify the ending position of the object in pixels, or drag the object from its start to its finish position, then click the check box. The offset value, in pixels, will reflect the object's new position.
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