Modify Charts

You can modify the type, color, and scale of a displayed chart.

1. Select next to the tag name to access the editing menu for the respective trend.
   Note: You can enable or disable a trend on a chart by clicking on the respective tag name.
2. Optional: Select Edit to modify the following chart elements, and then select OK to apply the changes.

   Select	Options
   Type	Line Line Smoothed Area Area Smoothed Scatter For more information about chart types, refer to the Types of Trend Charts topic.
   Color	Select a color for the trend chart.
   Auto Scale	By default, Auto Scale is enabled. You can disable the default settings and provide your own range for the scale by providing Min and Max values.
   Use Time	By default, Use Time is enabled, which means that the tag or variable uses the current time. You can disable the time and select the required date and time interval you want to analyze for the corresponding tag or variable.

3. Optional: Select the Switch Y-Axis option to switch the y-axis for the corresponding tag or variable.
4. Optional: You can show and hide rejection limits for the Plant Applications variables by using Show Spec Limits and Hide Spec Limits respectively. If the variable exceeds the rejection limits (L Rej, U Rej), the product is rejected.
   Note: You can only display specification limits for Plant Applications variables. By default, the variable specifications limits do not appear in the chart.
5. Select Remove to remove a chart or variable from a trend chart.