Using the Multi Pens Trend at Runtime

You can change the behavior of the Multi Pens Trend in runtime in WindowViewer. For example; adding pens, deleting pens or playing historical trend data. The Multi Pens Trend can be organized in 3 areas:

• Top Header: Lists the pen details in a table format

• Trend Area: The pens are visually represented in this area

• Toolbar: Contains the playback and stacking options

  

Cursor Readout Dialog

The cursor readout dialog displays the following fields when the cursor is placed at a specific point on a pen:

• Pen Name

• Value

• Quality

• Engineering Units

To view the Cursor Readout dialog, hover the cursor on the Trend Area and the cursor readout will show with the above values of the specified time.

When Auto Range is unselected and the pen reference value goes beyond the min/max range, the cursor readout will still show the actual value, though the trend plotting shows a flat line.

For example, in below screenshot, the current p1 value is 63. The latest cursor readout value also shows 63, though the pen plotting shows 50 based on the setting of Max Range.

When the Plot mode is Line mode, the cursor readout shows the previous data point value, though the cursor is on the middle of the slope.

For example, in below screenshot, the cursor is located between two data points, 17 and 45. Though the cursor shows at 26 based on the scale, the cursor readout shows 17 as its value, which is the previous data point.

Displaying Data Quality

The style of the trend pen changes to a Bad Quality style when the reference does not have good quality data. The displayed trend value will depend on the setting of Render data of any quality checkbox. Bad style will be applied, if reference has quality other than Good.