Configuring Accumulated Virtual Stream

An Accumulated Virtual Stream calculates a running total of its parent stream's output values starting from a specified Start-Datetime. You can also add a Starting Value to the total. The final value at any point is the sum of all raw values up to that time, starting from the Start-Datetime and including the Starting Value.

Common Use Cases

1. Weekly Water Usage:

   • Track the total water flow through a pipe over a week.

   • Set the Starting Value to 0 just after midnight on Sunday, and check the total before midnight the following Sunday.

2. Pump Activation Count:

   • Count how many times a pump is activated during a rain event.

   • Set the Starting Value to 0 at the start of the rain event and check the total at the end.

3. Rainfall Measurement:

   • Track total rainfall during a rain event or for the year:

     • Rain Event: Set Starting Value to 0 at the event's start.

     • Yearly Total: If the rainfall before the event was 70 cm, set the Starting Value to 70 to calculate the total rainfall to date.

Steps to Configure an Accumulated Virtual Stream

1. Access Devices:

   • In the left pane, click Devices and select Fleet Management.

   • Select the device containing the desired stream.

2. Select Input Stream:

   • Go to the Stream’s tab and choose the stream to use as input for the Accumulated Virtual Stream.

3. Create the Virtual Stream:

   • In the Configuration & Threshold tab, click Create Virtual Stream.

   • Select Accumulation as the Transformation Type.

4. Configure Starting Value:

   • After creating the virtual stream, select it and go to the Configuration & Threshold tab.

   • In the Convert to Engineering Units section, click the pencil icon.

   • The Add New Starting Value window opens.

5. Set Starting Value and Date:

   • Starting Value: Enter a numerical value in the field.

   • Start-Datetime: Use the calendar icon to select the date and time.

6. Save Changes:

   • Click Submit to finalize the configuration.