Step 1 : Right Click on the value and select HISTORICAL TREND

Step 2 : Right Click the mouse on the window and select properties

Step 3 : Select Auto Scale from Pens and press OK

Step 4 : Select Historical from Relative Interval

Step 5 : Select start Date and time and End Date and Time from Fixed Interval

To make the trend in Black and White select MonoChrome option

To make the trend in White Back Ground and color graph select Background Color option

To export values to excel Right click on Trend and select Send Data to Microsoft Excel

To print a Trend and select Print Trend

To Plot More than one plot on the same graph select the Add to .. Option