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 

Use the max function to show the largest value from a set of sensor data.

Add a single value to show the highest battery temperature

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1. Click Add widget > Single Value.
2. Name your widget and go to Add value > Max.
3. Select the temperature sensors you want to monitor and click Save.
4. Name the series and click Add.
5. Save the dashboard.

Min

Use the min function to show the smallest value from a set of sensor data.

Add a single value to show the lowest battery time remaining.

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Click Add widget > Single Value.

1. Name your widget and go to Add value > Min.
2. Select the sensors you want to monitor and click Save.
3. Name the series and click Add.
4. 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.

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1. Click Add widget> Graph.
2. Name your widget and go to Add value > Average.
3. Select the sensors you want to monitor and click Save.
4. Name the series and click Add.
5. 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.

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Click Add widget > Single value.

1. Name your widget and go to Add value > Sum.
2. Click Select sensors and search for the sensors representing the total facility power. Click Save.
3. Click Add calculation > Sum for the sum you added in step 3.
4. Use the menu to select Divide.
5. Click Select sensors and search for the sensors representing the IT equipment power. Click Save.
6. Name the value and click Add.
7. Save the dashboard.