There are several ways to add SCADA measurements to SCADA Trend Graph tool.
• Drag and Drop SCADA measurements from SCADA Summary tool.
• Open SCADA Summary tool.
• Select the desired analog SCADA measurements in the SCADA Summary tool.
• Drag the selected measurements and drop then onto the graph area of a SCADA Trend Graph tool.
• Use the Add Measurements Dialog Box
Using the Add Measurements Dialog Box
To open the Add Measurements dialog box, select Add Measurements... from Edit menu in SCADA Trend Graph tool.
Add Measurements Dialog Box Fields
• The Device field allows you to select a SCADA device. The following buttons are displayed to the right of the Device field:
• The Device Lookup button () is used to search for and select a device. The search is performed on the value entered in the Device field.
• The Link Device button () will populate the Device field with the device selected in the Viewer.
• The Measurements table displays the list of analog measurements for the selected SCADA device. The table is populated when a valid device alias is entered in the Device field. The table contains two columns: an unnamed column that contains check-boxes used to select measurements, and the Name column that contains measurement names.
• The Real Time Trend and Historic Trend radio buttons are only editable when adding measurements to an empty graph. Otherwise, they are populated according to the currently displayed graph.
• The Real Time Trend radio button indicates that selected measurements should be added as real-time trend lines. When this option is selected, the Time Window drop-down list is available and can be used to specify the time window, going back from the current time, for the real-time trend lines.
• The Historic Trend radio button indicates that selected measurements should be added as historic trend lines. When this option is selected, the Start Time and End Time fields are available and can be used to specify the date range for the historic trend lines.
Buttons
• The OK button adds trend lines for the selected measurements to the graph and closes the Add Measurements dialog box.
• The Cancel button closes the Add Measurements dialog box without changing the graph.
Removing Measurements
To remove measurements, select Remove Measurements... from Edit menu in SCADA Trend Graph tool. The Remove Measurements dialog box will open.
Using Remove Measurements Dialog Box
Remove Measurements Dialog Box Fields
• The Measurements table display the list of analog measurements that are currently displayed in the SCADA Trend Graph tool. The table contains two columns: the unnamed column that contains check‑boxes used to select measurements and the Name column that contains measurement names.
Buttons
• The OK button removes trend lines for the selected measurements to the graph and closes the Remove Measurements window.
• The Cancel button closes the Remove Measurements window without changing the graph.