Step 2: "Select sources"

In this step, the user can select the sources for the 'data source' mode that has selected in step 1:

Data source mode "Assets"

With this data source mode, the user can select specific assets and aspects. The created data source will contain data from all selected assets that are connected to MindSphere.

To select assets and aspects for the data source, click on the respective assets and check the boxes next to the respective aspects.

The number next to an asset shows the number of the selected aspects in this asset.

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NOTE

The data source type "Simulation Twins" has a restriction that only one asset can be a part of the data source. So, after selecting an aspect of a different asset than the other selected aspects, the selection will be cleared before the new item is added.

Data source mode "Asset Types"

With this data source mode, the user can select specific asset types and aspects. The created data source will contain data from all assets of the selected asset types that are connected to MindSphere.

To select asset types and aspects for the data source, click on the respective asset types and check the boxes next to the respective aspects.

The number next to an asset type shows the number of the selected aspects in this asset type.

If the user selects an asset type and a new asset of that is subsequently connected, the asset will automatically be inserted into the data source.

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Aspect details

To view the variables of an aspect and their datatype, click the info icon 112962960139.png next to the aspect.

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Data fields

After selecting the assets and aspects, the respective data will be saved in a data source, which provides the basis for Visual Explorer visualizations. The data fields of this data source contain three fixed fields and various additional fields, depending on the selection of aspects.

The three fixed fields are as follows:

  1. Sequential number (Id)

  2. Asset ID (assetId)

  3. Time stamp of measurement (_time)

The variable fields are named corresponding to the pattern of "aspektName_aspektTyp_variable".

Name

Description

aspektTyp

Aspect type

aspektName

Name of asset in your asset type

variable

Name of variable in aspect type

Example

The asset named "sensor2" with type "machine" collects the variables "airTemperature" and "airPressure". Therefore, uses the aspect type "StateofEnvironment". In this case, the respective data fields are:

  • stateofEnvironment_sensor2_airTemperature

  • stateofEnvironment_sensor2_airPressure

These data fields will be listed under "Dimension" or "Measure" in Tableau®, depending on their data type.

This means that the additional number of rows in the table can be created as per the available aspects. If the user uses various assets of the same type, MindSphere recommends selecting the same aspects for each asset to keep the consistent number of rows in the table.

NOTE

The number of rows is limited to 100 to maintain the Visual Explorer workflow. A dialog box is displayed on the screen, informing the exceeded rows limit.