The Historical Data Viewer page enables you to select a date upon which to view historical data for the pens plotting tag data on the graph.
To select a start date:
1. Click the Select Start Date button in the tool bar on the Historical Data Viewer page (to the immediate right of the duration drop-down list). (Note: If you are having difficulty locating the Select Start Date button, rest your mouse pointer over the tools in the tool bar to view their associated tooltips.) The calendar will open to the current month.
2. Use the << button to move backward through the months, or the >> button to move forward through the months.
3. Click on the date whose logged data you wish to view.
The calendar closes, and the date you selected is displayed beneath the time period under the graph, and just above the scroll bar.
You can use the duration drop-down list to the immediate left of the Select Start Date button to modify the time period on the day you've just selected. Please refer to Modify the Time Duration for the Data Plotted on the Historical Data Viewer Page.
You can use the scroll bar to navigate backwards or forwards in time from the selected date; please refer to the instructions in Scroll to View Earlier or Later Dates.