Charts are integral to
[ANALYSIS] tab. Here you will select your devices data to display data in a graphical format based on time periods.
On entry into the
[ANALYSIS] tab, the Ardexa Web App will auto-load a list of your devices on the left-hand side of the screen.
Select a device to start. If tables have been defined against your device they will auto-appear as a list of sources below the selected device.
Select by checking one or more tables to work with.
Select from a list of available pre-defined
[Field]/s to display that data in a chart.
Adjust the Chart Style if required. Options are
line (default) or
Your machines may collect data at a very high frequency. Bringing that data back from your tables to chart as un-aggregated data for
Day timeframes will present a performance limit.
Before selecting your source's fields choose an appropriate
Timeframe that you would like to chart
Custom timeframes are also available to build your analysis for specific periods.
The timeframe picker offers you the ability to select a custom timeframe to suit your needs based on periods of:
Day, Month, or Year
Click on the calendar icon of the start and end date fields to chose your timeframe.
The timeframe is only applied when you click on the
For timeframes of
Last hour ,
Yesterday only, by checking the
[Downsample] field you will then have the ability to choose a downsample
[Interval] for your chart.
This feature is particularly useful for large datasets that will exceed the 10,000 data-point limit or otherwise causing performance problems in your charts.
The aggregation applied to each minute interval is taken from
[Fields] input field (auto-displayed to you when
[downsample] is checked).
By default, the Ardexa agent records an
event_time field when it captures an event. Some data stored in the Ardexa Cloud can contain one or more date time fields that reflect when an event actually occurred. This pattern is most common when an on-site system captures the data, which is then read by the agent at a later point in time. See event_time and Datetime for more information.
Analysis allows you to visualise data using a selected date time field. The default behaviour will attempt to resolve the appropriate date time field following these rules:
event_time is the base default date time field for Analysis
If a workgroup-level 'analysis date/time field' is active in the workgroup's settings, it will be used as the default in Analysis
If a date field is selected in the "Date field" drop-down on the Analysis page, it will be used as the default
If the default date time field is not present on a given table and source, the first date time field in the record will be used
If rules 2-4 are not able to provide a suitable date time field, Analysis will fall back to using
Any chart in the Ardexa cloud can be exported to an image or CSV file by clicking the download button at the bottom-right of the chart: