Chart is used to visualise live and historical data. You can use it for sensor data, for binary event logging and more. Chart display can be of 4 types: Line, Area, Column, SteplineGeneral chart properties:
- Values axis (vertical) – each Datastream added to Chart widget has it's scale on the right and left. It can be set manually or to be auto-scaled during Template dashboard setup.
- Timeline Axis (horizontal) – helps to find values actual for the exact time the search is performed.
- Hover the chart – views value ant time for each selected point for each Datastream.
Stepline chart widget example
Area chart widget example
- Add source – it's possible to set several Datastream Sources under one Chart. Click and set up as much as you need.
- Chart Title – name a chart so you or your client understand what it's about
- Source Label – The easiest way to name it/them is giving used Datastreams names.
- Source – there are two fields:
- the right one contains Datastreams used in the Product. Select one;
- the left is Source aggregation type menu it's used to select an option to be used in chart data plotting:AVG of will plot average value per minute;Raw of data will plot using all the data available;SUM of will summarize all incoming values to the specified Virtual Pin;MIN of will plot minimum value per minute;MAX of will plot maximum value per minute;COUNT of will plot the number of times data was sent by device per minute;
- Chart type - 4 types are available: Line, Area, Column, Stepline. Pick a color to make it different from other sources may use under this chart.
- Show Y-axis – enable if it's needed to view Datastream values on the axis (X-axis displays the time);
- Autoscale – enable if there's no specific limitations of the data values needed to be viewed. Otherwise specify them by setting the values in MIN and MAX fields.
- Enable zoom – enable if chart zoom may be useful. Otherwise leave it disabled.
Chart widget setup demo