Configure the Trend time span and update rate

The Pen Trend Control dialog box shows different options based upon whether you are creating a real-time or historical 16-Pen Trend. You can set the time span for a historical trend and the update rate for a real-time trend.

Configure the time span of a 16-Pen historical trend

1. Double-click a 16-Pen historical trend within a window. The PenTrend Control dialog box appears with options to set the starting and ending dates and time of a trend.

   

2. Set the starting and ending date and time of the historical trend.

   Use the following format for both the starting and ending dates and times:

   DD-MM-YYYY HH:MM:SS AM/PM

Configure the update rate of a 16-Pen real-time trend

3. Double-click a 16-Pen real-time trend object within a window. The PenTrend Control dialog box appears with options to set update rate and span of a real-time trend.

   

4. In the Update Rate box, type the number of seconds between each refresh interval of the historical trend.

5. In the Span box, type the number of seconds of the real-time interval shown in the trend.