Math functions on ITE dashboards

[EcoStruxureIT]

When you add a graph widget or single value widget to an ITE dashboard, you can use math functions to add calculations. 

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Sensor

Adding a sensor shows the sensor values for the duration you select in a graph widget, or the latest sensor value in a single value widget.

Static value

Select static value to show a single value in a widget, or a horizontal line in a graph widget. You can also use a static value in a calculation as a constant.

Math functions

You can do calculations using Min, Max, Average and Sum in combination.

Max and Min

• Use the Max function to show the largest value from a set of sensor data.
• Use the Min function to show the smallest value from a set of sensor data.

Add a single value to show the highest or lowest battery temperature

1. Click Add widget > Single Value.
2. Name your widget and go to Choose value >Calculated sensor.
3. Select either Min or Max.
4. Use Select sensor to select which sensors you want to monitor and click Save.
5. Click Add.
6. Save the dashboard.

 

Average

Use the average function to show the arithmetic mean of a set of sensor data.

Add a graph widget to show average battery temperature.

1. Click Add widget> Graph.
2. Name your widget and go to Add value > Calculated sensor.
3. Select Average.
4. Use Select sensor to select which sensors you want to monitor and click Save.
5. Click Add.
6. Save the dashboard.

The resulting graph shows the mean sensor value for a time interval. A time interval is defined by the shortest pull cycle for the selected sensors.

Sum 

Use the sum function to add up all the values for each point in time.

Add a single value widget to show PUE

Calculate the efficiency of specific locations, rooms, etc.

1. Click Add widget > Single value. Add single value
2. Name your widget and go to Choose type > Calculated sensor. Choose type
3. Click Select sensors and search for the sensors representing the total facility power. Click Save. Select sensors
4. Click Value calculation. Click Value calculation
5. Use the menu to select Divide.
6. Click Choose type > Calculated sensor and search for the sensors representing the IT equipment power. Click Save.
7. Name the value and click Add. Click Add
8. Save the dashboard. Click Save