Modify Analog Pen Properties

The Historical Data Viewer Page > Working with the Historical Data Viewer Page > Modifying Pen Properties

Modify Analog Pen Properties

The Historical Data Viewer page allows you to modify the properties of the pens plotting analog data on the Historical Data Viewer page's graph. The properties of analog pens that may be modified are:

• Minimum and maximum scale range values

• Whether or not the minimum and maximum scale ranges are displayed along the graph's y-axis

• The style of the plot (as follows):

• Linear

• Logarithmic

• Square root

• The color associated with the selected analog pen's plot

• The line style and width associated with the selected analog pen's plot

• Whether or not the plot for the selected analog should be displayed on the graph

• Whether or not the alarms associated with the selected analog pen are displayed on the graph

• Whether or not the plot peaks associated with the selected analog pen is displayed on the graph

• Whether or not the plot average associated with the selected analog pen is displayed on the graph

• The data to be displayed in the pen legend (as follows):

• Description (of the analog tag whose data is being plotted)

• Value (of the analog tag whose data is being plotted)

• Minimum (the minimum value for this analog within the selected time period)

• Maximum (the maximum value for this analog within the selected time period)

• Average (the average value for this analog within the selected time period)

• Low Scale Range (the low scale range for this analog)

• High Scale Range (the high scale range for this analog)

Note: To modify the properties of pens plotting digital data, please refer to Modify Digital Pen Properties. To modify the properties of pens associated with notebooks, please refer to Modify Notebook and Note Properties.

To modify the properties of a pen plotting analog data:

1. Select the analog pen whose properties you wish to modify in the legend. (A rectangle will appear around the pen to indicate that it has been selected.)

2. Right-click the analog pen. A shortcut menu similar to the example shown below is displayed.

3. Click the Properties shortcut menu item as indicated above. The Pen Properties dialog opens similar to the example displayed below.

4. Modify the properties for the selected analog pen according to your requirements. (The table below will assist you in determining what the elements of the Pen Properties dialog do.)

5. Click the OK button. The Pen Properties dialog will close, and the appearance of the selected analog pen will change according to the modifications you have made.

The table below identifies the elements of the Pen Properties dialog for analog pens.

Analog Pen Properties Element	Description
Min	The Min field either displays the value that has been configured for the tag's Scaled Process Data Min property (if the Track Tag Scales checkbox is selected), or enables you to enter the minimum scale range value you wish to be displayed on the graph for the selected analog pen (if the Track Tag Scales checkbox is not selected). The Track Tag Scales checkbox is described below.
Max	The Max field either displays the value that has been configured for the tag's Scaled Process Data Max property (if the Track Tag Scales checkbox is selected), or enables you to enter the maximum scale range value you wish to be displayed on the graph for the selected analog pen (if the Track Tag Scales checkbox is not selected). The Track Tag Scales checkbox is described below.
Show Scales	The Show Scales checkbox enables you to indicate whether or not you wish the minimum and maximum scale values configured for this analog pen to be displayed along the y-axis of the graph. If the Show Scales check box is selected, then the configured scale range will be displayed along the graph's y-axis. If the Show Scales checkbox is not selected, the configured scale range will not be displayed along the graph's y-axis. Note: The shortcut menu for a selected analog pen enables you to toggle the setting of the Show Scales checkbox between selected and not selected; simply select the pen in the pen legend, right-click to open the shortcut menu, then select the Show Scales shortcut menu item to toggle it.
Track Tag Scales	The Track Tag Scales checkbox enables you to indicate whether or not the scales configured for the associated tag should be used as the minimum and maximum scale range values on the graph, or a custom set of scale range values should be used for the minimum and maximum scale range values on the graph. If the Track Tag Scales checkbox is selected, the values configured for the tag's Scaled Process Data Min and Scaled Process Data Max properties will be used as the minimum and maximum scale range values on the graph. If the Track Tag Scales checkbox is not selected, the Min and Max fields on this Pen Properties dialog will become enabled, and you may enter the minimum and maximum scale range values you wish to be used for this pen on the graph.
Style	The Style drop-down list enables you to select from one of three available plot styles: Linear Logarithmic Square Root
Color	The Color button opens the Select Color palette that enables you to select a new color in which you wish the data associated with this analog pen to be displayed.
Style	The Style spinbox enables you to select a new line style in which you wish the data associated with this analog pen to be plotted. There are 5 available line styles from which to choose; a preview of these is displayed to the right of the spinbox.
Width	The Width spinbox enables you to select a new line width in which you wish the data associated with this analog pen to be plotted. There are 9 available line widths from which to choose; a preview of these is displayed to the right of the spinbox.
Show Pen	The Show Pen checkbox enables you to specify whether or not you wish the data being plotted for this pen to be displayed using a plot line on the graph. If the Show Pen checkbox is selected, the data for this pen will be displayed using a plot line on the graph. If the Show Pen checkbox is not selected, the data for this pen will not be displayed using a plot line on the graph. Note: The shortcut menu for a selected analog pen enables you to toggle the setting of the Show Pen checkbox between selected and not selected; simply select the analog pen in the legend, right-click to open the shortcut menu, then select the Show Pen shortcut menu item to toggle it.
Show Alarms	The Show Alarms checkbox enables you to specify whether or not you wish the alarm setpoint(s) associated with the analog tag being plotted by this pen to be displayed on the graph. If the Show Alarms checkbox is selected, the alarm setpoint(s) associated with the analog tag being plotted by this pen will be displayed on the graph. If the Show Alarms checkbox is not selected, the alarm setpoint(s) associated with the analog tag being plotted by this pen will not be displayed on the graph. Note: The shortcut menu for a selected analog pen enables you to toggle the setting of the Show Alarms checkbox between selected and not selected; simply select the analog pen in the legend, right-click to open the shortcut menu, then select the Show Alarms shortcut menu item to toggle it.
Plot Peaks	The Plot Peaks checkbox enables you to specify whether or not you wish the plot for the selected analog to display the data peaks (i.e. the highest values achieved by the analog within the selected time period). If Plot Peaks is selected, then the plot for the selected analog will reflect the points at which the data peaked (reached its highest values) within the specified time period. If Plot Peaks is not selected, then the data peaks for the selected analog will not be plotted on the graph. Note: The Plot Peaks and Plot Average checkboxes may be selected simultaneously to display peaks and averages for an analog tag. However, if neither the Plot Peaks nor the Plot Average checkbox is selected, no plot will be displayed on the graph (i.e. one or the other (or both) must be selected in order to see a plot on the graph).
Plot Average	The Plot Average checkbox enables you to specify whether or not you wish the plot for the selected analog to display the average data within the specified time period. If Plot Average is selected, then the plot for the selected analog will reflect the calculated average points within the specified time period. If Plot Average is not selected, then the average data for the analog will not be plotted on the graph. Note: The Plot Peaks and Plot Average checkboxes may be selected simultaneously to display peaks and averages for an analog tag. However, if neither the Plot Peaks nor the Plot Average checkbox is selected, no plot will be displayed on the graph (i.e. one or the other (or both) must be selected in order to see a plot on the graph).
Description	The Description checkbox enables you to specify whether or not you wish the description configured for the analog tag associated with the selected pen to be displayed in the legend. If the Description checkbox is selected, the description for the analog tag associated with the selected pen will be displayed in the legend. If the Description checkbox is not selected, the description for the analog tag associated with the selected pen will not be displayed in the legend. Note: The shortcut menu for a selected analog pen enables you to toggle the setting of the Description checkbox between selected and not selected; simply select the analog pen in the legend, right-click to open the shortcut menu, then select the Description shortcut menu item to toggle it.
Value	The Value checkbox enables you to specify whether or not you wish the value of the analog tag associated with the selected pen to be displayed in the legend.
Minimum	The Minimum checkbox enables you to specify whether or not you wish the minimum value recorded for the analog tag associated with the selected pen (within the configured time period) to be displayed in the legend. If the Minimum checkbox is selected, the minimum value recorded for the analog tag associated with the selected pen will be displayed in the legend. If the Minimum checkbox is not selected, the minimum value recorded for the analog tag associated with the selected pen will not be displayed in the legend. Note: The shortcut menu for a selected analog pen enables you to toggle the setting of the Minimum checkbox between selected and not selected; simply select the analog pen in the legend, right-click to open the shortcut menu, then select the Minimum shortcut menu item to toggle it.
Maximum	The Maximum checkbox enables you to specify whether or not you wish the maximum value recorded for the analog tag associated with the selected pen (within the configured time period) to be displayed in the legend. If the Maximum checkbox is selected, the maximum value recorded for the analog tag associated with the selected pen will be displayed in the legend. If the Maximum checkbox is not selected, the maximum value recorded for the analog tag associated with the selected pen will not be displayed in the legend. Note: The shortcut menu for a selected analog pen enables you to toggle the setting of the Maximum checkbox between selected and not selected; simply select the analog pen in the legend, right-click to open the shortcut menu, then select the Maximum shortcut menu item to toggle it.
Average	The Average checkbox enables you to specify whether or not you wish the average value recorded for the analog tag associated with the selected pen (within the configured time period) to be displayed in the legend. If the Average checkbox is selected, the average value recorded for the analog tag associated with the selected pen will be displayed in the legend. If the Average checkbox is not selected, the average value recorded for the analog tag associated with the selected pen will not be displayed in the legend. Note: The shortcut menu for a selected analog pen enables you to toggle the setting of the Average checkbox between selected and not selected; simply select the analog pen in the legend, right-click to open the shortcut menu, then select the Average shortcut menu item to toggle it.
Low Scale Range	The Low Scale Range checkbox enables you to specify whether or not you wish the low scale range configured for the selected pen to be displayed in the legend. If the Low Scale Range checkbox is selected, the low scale range configured for this pen will be displayed in the pen legend. If the Low Scale Range checkbox is not selected, the low scale range configured for this pen will not be displayed in the pen legend. Note: This Low Scale Range is not the Scaled Process Data Min property configured for the analog tag associated with this pen; this is the value configured for this pen in the Min field of its properties dialog (see Min above). Note: The shortcut menu for a selected analog pen enables you to toggle the setting of the Low Scale Range checkbox between selected and not selected; simply select the analog pen in the legend, right-click to open the shortcut menu, then select the Low Scale Range shortcut menu item to toggle it.
High Scale Range	The High Scale Range checkbox enables you to specify whether or not you wish the high scale range configured for the selected pen to be displayed in the legend. If the High Scale Range checkbox is selected, the high scale range configured for this pen will be displayed in the pen legend. If the High Scale Range checkbox is not selected, the high scale range configured for this pen will not be displayed in the pen legend. Note: This High Scale Range is not the Scaled Process Data Max property configured for the analog tag associated with this pen; this is the value configured for this pen in the Max field of its properties dialog (see Max above). Note: The shortcut menu for a selected analog pen enables you to toggle the setting of the High Scale Range checkbox between selected and not selected; simply select the analog pen in the legend, right-click to open the shortcut menu, then select the High Scale Range shortcut menu item to toggle it.