Parameter Widget - Last Value

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In this article we are going to learn how to use the last value widget.
 
Content:
 

 

Introduction

This widget is a parameter widget.
It displays the latest reading stored for a specific parameter.
This widget is available for all types of dashboards.
 
dexma-param-widget-last-value-1.png
 

Parameters that can be introduced

In Zone / Template dashboard

Any parameter that can have a Reference Device set up:

  • Electricity
  • Gas Energy
  • Water
  • Gasoil Energy
  • Exported Energy
  • Thermal Heating
  • Thermal Cooling
  • Compressed air volume
  • Temperature
  • Solar Radiation
  • Humidity
  • Liquefied natural gas (LNG)
  • Biomass

Remember that you can easily add new Energy Sources Reference meters going to Settings -> Preferences.

dexma-param-widget-last-value-2.png

In Location dashboard

Any parameter in the EM Platform.

Available frequencies and periods

  • All frequencies available for each parameter in the platform can be selected
  • The period is always the last value of the parameter, so it can vary depending on the parameter frequency (ie: Monthly parameter will show last monthly value. Hourly parameter will show last hourly value).
  • In Location / Template dashboard, the widget shows a comparison max/min. To do so, these are the frequencies (hourly, daily, monthly) and periods available:

dexma-param-widget-last-value-3.png

  • In Zone dashboard, this does not apply

Requirements

  • To have available data of the parameter selected
  • Note that you have to select the frequency of the parameter. Ensure that you have data from that frequency when you select it.

Setup 

To Setup this widget, you must have a Dashboard created beforehand.

1. Get into the dashboard and click on "New widget".
2. In the next screen select Last Value on the Parameters Widgets section (on the bottom).
3. Name the widget.
4. Select a parameter with the frequency desired. You will see the last value of the parameter at that frequency (ie: if you select monthly electrical energy, you will see the last monthly electrical energy value).

The following steps are different depending on the type of dashboard in which we are creating the widget:

In Zone dashboard

5. Select the Reference device that you would like to see depending on the parameter selected.
6. Optional: Add a custom picture as a background image of the widget. 

dexma-param-widget-last-value-gif-1.gif

In Template dashboard

5. Select the Reference device that you would like to see depending on the parameter selected.
6. Select the Frequency and Period to do the max/min comparison that will be shown in the widget. Example: compare last 12 months of Monthly Electrical Energy
7. Select to compare with "Last period" or "Same period last year".
8. Optional: Add a custom picture as a background image of the widget. 

dexma-param-widget-last-value-gif-2.gif

In Location dashboard

5. Select the specific device or group for which you would like to visualize the parameter selected.
6. Select the Frequency and Period to do the max/min comparison that will be shown in the widget. Example: compare last 12 months of Monthly Electrical Energy
7. Select to compare with "Last period" or "Same period last year".
8. Optional: Add a custom picture as a background image of the widget. 

dexma-param-widget-last-value-gif-3.gif

Widget detailing

In Zone dashboard

The widget shows:

  • Last reading of the parameter selected for the reference meter selected.
  • Available data of the reference meter for the period selected (ie: if it is monthly data, the period will be current month).
  • Timestamp of the last value that we are looking at. 

dexma-param-widget-last-value-4.png

In Location / Template dashboard

The widget shows:

  • Last reading of the parameter selected for the device / reference meter selected.
  • Max value for the period that we selected to compare with.
  • Min value for the period that we selected to compare with.
  • Timestamp of the last value that we are looking at. 

dexma-param-widget-last-value-5.png

 

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