External tools can easily be used to display and evaluate the values from QHMI. This example describes how evaluations and dashboards can be displayed using Grafana.

To install Grafana, please refer to the official documentation at the following link:

https://grafana.com/docs/grafana/latest/setup-grafana/installation

The Grafana interface is displayed via the following address in the browser:

http://localhost:3000/login

After entering the access data, the Grafana interface is displayed.

The first step is to create a data source. To do this, select “Data sources” and “Add data source” from the main menu.

Once all settings have been made, the data connection can be checked under the “Explore” entry in the overview under the data sources.

With the following settings, data should appear in the table below in our example project after “Run query”.

Now we are ready to create the first dashboard by selecting “Dashboards”:

A new dashboard can be created via “New”.

A new dashboard can then be added via “add Visualization”. After selecting an available data source, the fields to be queried can be entered via the dialog or, as in this example, entered directly via an SQL statement after switching to “Code”.

In the current example, “TimeLine” was selected as the visualization. After saving, the dashboard can be called up via the sidebar and the settings for the time period can be adjusted via the dialog.

Additional data rows can be added via a further query.