Indicates the number of decimal places to display for tag values in the pen legend when pens have been configured to plot tag values, and the Descriptions drop-down list on the Trends page has been set to display Value/Time.
Note: If a value is not specified for the TrendLegendDecimal variable, the default value is based on the largest scale value; as the largest scale value approaches 1000, the number of decimal places reduces according to the equation: 3 – int(log(max(scalehi, scalelo))).
For example, if the low scale is 0, and the high scale is less than 10, then the number of decimal places is 3. When the high scale is less than 100, then the number of decimal places is 2. When the high scale is less than 1000, then the number of decimal places is 1. When the high scale is greater than 1000, then the number of decimal places is 0.
Default: TrendLegendDecimal = Invalid