Topic: DMD0291
Trend View Display Options
Trend View:
The Trend View Options dialog is used to select which controller elements to trend and how those elements will be displayed on the trend. This Options dialog is displayed each time a new Trend is created. For an existing Trend View, this dialog is invoked by clicking the Opt button on the Trend Dialog, or by right clicking anywhere on the trend and select Trend View Options. The options listed below are also available on the Trend tab of the View-> Options dialog.
Adding Elements to a Pane
This group specifies which controller data elements to add to the selected pane of a trend view. Note: Use the F9 key (Element Browser) or Down-Arrow key (Auto-Complete) at any time to see a complete list of the memory locations that are valid in the current field of the instruction.
Start - specifies the first (or only) controller data element to add to the pane. This can be any readable numeric location or any readable bit location of any constant value.
End - optionally specifies the last controller data element in a range to add to the pane. This can be any readable numeric location or any readable bit location in the same range as the Start element, or any constant value.
Click Add Element to the highlighted pane.
Click Remove Element to delete the highlighted element from the pane.
Adding, Deleting, and Repositioning Panes
Click the Add Pane button to add a new pane to the current Trend View.
Click the Remove Pane button to delete the highlighted element from the pane.
Click the Move Up button to move the highlighted pane toward the top of the Trend View.
Click the Move Down button to move the highlighted pane toward the bottom of the Trend View.
Click the Merge Above button to combine the elements of the highlighted pane with the pane directly above it.
Click the Merge Below button to combine the elements of the highlighted pane with the pane directly below it.
Click the Bring View to Front button will make the Trend View the top tab, which will make it's contents visible.
Current Trend Views and Their Panes
The center column of the Trend Options dialog displays the current panes and controller elements.
Trend View Properties
Highlighting any of the Trend Views in the center pane will display the following Trend View properties that control the look and feel of the Trend View selected.
Time Scale group - sets the amount of time that is displayed in the current Trend View. Enter the number of Hours, Minutes, and Seconds to display in the fields provided, up to a maximum of 24 hours.
Click the Set button to change the time scale to the number of Hours, Minutes and Seconds specified.
Clicking the Scale to Data button sets the number of Hours, Minutes and Seconds required to display all of the data values recorded since the Trend was started, then redraws the Trend using the new Time Scale.
Y-Scale group - sets the amount of data that is displayed vertically in the Trend View.
Click Auto-Scale All button to automatically determine the minimum and maximum values for the panes on the Trend View based on the controller element values. The Panes will re-scale if needed.
Click Scale to Data button to set the minimum and maximum values of the vertical axis required to display all of the data values recorded since the Trend View was started, then redraws the Trend using the new axis values.
Crosshair group - defines how the crosshair is displayed in the Trend View.
Show Crosshair - when checked, this option will display the crosshair any time the mouse cursor is moved over the Trend View.
Click the Color button to display a list of colors from which to choose.
Click the Style button to display a list of line styles from which to choose.
View Name group - specifies the name of the Trend View.
Name field - enter up to 16 characters for the name of the Trend.
Click the Set button to change the name of the Trend to the value specified above.
Toggle Historical Mode - switched the Trend View between real-time display of the data being collected, and the Historical view of the data that has been collected since the Trend View was started.
Historical Data group - sets disk storage limits for the controller elements on the Trend.
Click the Up or Down arrow to change the amount of disk storage allocated to each element in the Trend View
Click the Set button to save the changed amount value.
Pane Display Properties
Highlighting any of the Panes in any of the Trend Views in the center pane will display the following Pane properties that control the look and feel of the one Pane that is selected.
Click the Background Color button to display a list of colors from which to choose the background color of the pane.
Click the Trending Area Color button to display a list of colors from which to choose the color of the trend area in the pane.
Grid Lines / Tick Marks group - specifies the number of vertical and horizontal divisions to display on the pane.
Value Scale group - defines the number of vertical divisions to display on the pane.
Click the Color button to display a list of colors from which to choose.
Click the Style button to display a list of line styles from which to choose.
Lines - enter the value for the number of equally-spaced horizontal lines to draw on the pane - or click the Up or Down arrow to change the value - then click the Set button to redraw the pane using the new value.
Ticks - enter the value for the number of equally-spaced subdivision marks between each horizontal line to draw on the pane - or click the Up or Down arrow to change the value - then click the Set button to redraw the pane using the new value.
Time Scale group - defines the number of horizontal divisions on the pane.
Click the Color button to display a list of colors from which to choose.
Click the Style button to display a list of line styles from which to choose.
Lines - enter the value for the number of equally-spaced vertical lines to draw on the pane - or click the Up or Down arrow to change the value - then click the Set button to redraw the pane using the new value.
Ticks - enter the value for the number of equally-spaced subdivision marks between each vertical line to draw on the pane - or click the Up or Down arrow to change the value - then click the Set button to redraw the pane using the new value.
Left Axis group - specifies the minimum and maximum values that will be displayed on this pane.
Auto-Scale Left Axis - check this to auto-scale the pane based on the values of the controller elements in the pane. If this is NOT checked, enter the axis values below.
Maximum - specifies the maximum value to display on this pane.
Minimum - specifies the minimum value to display on this pane.
Click the Apply button to redraw the pane using the new Maximum and Minimum values.
Right Axis group - if there are multiple controller elements in the pane, they can be drawn relative to the left-side axis or the right-side axis. This set of options defines the minimum and maximum values for controller elements drawn relative to the right-side axis.
Auto-Scale Right Axis - check this to auto-scale the pane based on the values of the controller elements that are designated to use the right-side scale. If this is NOT checked, enter the axis values below.
Maximum - specifies the maximum value to display on this pane.
Minimum - specifies the minimum value to display on this pane.
Click the Apply button to redraw the pane using the new Maximum and Minimum values.
Show Element Labels - enables and disables the display of the controller element name on the right side of the pane.
Element Graphing Properties
Highlighting any of the controller elements in any of the panes in any of the Trend Views in the center pane will display the following Element Graphing properties that control the look and feel of the one Pane that is selected.
Trace Attributes group - defines how the trace lines of the elements will be displayed on the pane.
Click the Color button to display a list of colors from which to choose.
Click the Line Width button to display a list of line widths from which to choose.
Use Right Axis - if the pane is being drawn with separate scales for the left-side and the right side, leaving the box unchecked will draw the trace line relative to the left-side scale, checking the box will draw the trace line relative to the right-side scale.
Discrete Options group - specifies additional options for discrete memory locations.
'On' Label - enter up to 16 characters to display along the right axis if the discrete memory location is ON
'Off' Label - enter up to 16 characters to display along the right axis if the discrete memory location is OFF
Click the Apply button to use the label text only for the highlighted discrete memory location.
Click the Apply to All button to use the label text for all of the discrete memory locations on all of the Trend Views.
Historical Data group - sets disk storage limits for the selected controller element.
Click the Up or Down arrow to change the amount of disk storage allocated to store values for this element.
Click the Set button to save the changed amount value.
See Also:
Trend View Display Options