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Features
- Calculation is performed every 2 minute
- Rules can be enabled for the virtual sensor
- Calculated value can be retrieved via all available APIs
- Sensor will show as offline if one or more of input sensor have not reported for 30 minutes
Add a new Virtual sensor
You can add new virtual sensors to a system by going to the system, click the "+Add" tile and Choose "Add virtual sensor" in the menu.
We recommend to give the sensor an alias and a suitable description as the virtual vensor will generate a unique serial number that will be hard to remember.
You can also add some tags on the sensor as explained in this article: Tags
Only admin users of the system can add a virtual sensor.
Creating a Virtual sensor will require you to accepting terms and condition since the sensor will be subject to a license fee.
Calculations
Unit
First you need to enter the unit you would like the virtual sensor to display.
Expression
Here you will enter the formula for the calculation. This could be all kinds of mathematical formulas, with input from one or more Neuron sensors. Example below shows an average calculation of two temperature sensors. Entering letters like A and B will enable variables where you choose which sensors to get data from.
The system might change the expression to a simpler form when saving
Variables
Choose which sensor(s) to use in the formula. You will only be able to use sensors registered to the same system.
Below the input-field a handy preview of your current value is displayed.
Sensor tile
The sensor tile will show Waiting for data until all sensors in calculation have reported fresh data.
Once all sensors have reported and the calculation is performed the tile will show calculated value.