Level Node

Level Node

The level node displays the volume of liquid in a tank, pit, or silo, specifying its percentage of a total amount.

Adding a Level node to your workflow

1. First, select your desired solution and navigate to Rayven Workflow.
2. Select ‘Visualizations’ from the left-hand panel.
3. Find the Level node and drag it onto the canvas.
4. Connect the Level node to your desired input node.
5. Double click on the Level node to open its configuration window.
   

Configuring your Level node

1. Give your node a Name. Choose something simple that clearly explains its purpose. You must pick a name that has three or more characters.
2. Under the Input Data field, enter the field name within the incoming JSON payload that contains the data you want the widget to display.
3. If you want, add a Widget Subtitle. This additional text helps explain the data presented by the node to the end-user. It will appear under the Widget Name in a smaller font. 
4. Selecting the Device/Device Label Name checkbox will display the device or label name on the widget.
5. Enter a Symbol if you want to display a measurement unit at the end of the value (for example, L or %).
6. Enter the number of decimal places to display under Decimal Precision.
7. Under Full Level Value, enter the maximum value for the liquid (the liquid volume when the tank or silo is full). The node will use this figure to calculate the level percentage. 
8. Select a Liquid Typefrom the dropdown menu. Your options are:
   • Water,
   • Fuel,
   • Effluent.
9. Set the conditions for displaying particular colors by entering at least one Range. You can add as many rows as you want and enter the same definition (for example, normal, minor, or critical) several times.
   • Enter the lower value in the first box and the higher value in the second box.
   • Reorder the rows of ranges by clicking and dragging the arrows on the right.
   • Delete range rows using the 'X' to the left of each row. 

Grouping by Device Label

Select how data should be grouped and displayed on the widget. To group data by device label, you must first create at least one label in the Device Labels section of the Workspace. See Creating Device Labels and Configuring Nodes Using Labels for more information.

To group your data:

1. Select the label you will be using to filter devices from the dropdown list under Device label name.
2. Select a method for grouping the widget on the dashboard:
   • No Grouping (widget per device): one Level widget will appear for each device.
   • Group by device label value (widget per label value): one Level widget will appear for each unique value label. For example, if the device label is ‘Color’ and the label values are ‘Green’ and ‘Gold’ the dashboard will show two widgets. One will contain data for devices labeled ‘Green’ and the other for devices labeled ‘Gold’.
   • Group by device label name (one widget): only one Level widget will be displayed. It will contain data from all devices with the selected device label.

See Also: Creating a dashboard, Creating device labels, Configuring nodes using labels
As of Release: 08.12.2021