Creating Data Points

Contents

To be able to provide the value inputs and value outputs within the logic groups with data points, they have to be configured first. In this respect, the data points create the connection with the system (KNX system, other functional areas within the EIBPORT, e.g. visualisation). The administration of the data points is located at "System > Data Points". ETS project data, ESF files or simply individually created data points can be used for the purpose of creation.

Set up / create

There are three ways to create a data point:

1. By double clicking on a group address of the KNX project tree on the left-hand side.

2. By dragging and dropping (dragging with the mouse) a group address from the KNX project tree to the right

   1. To the grey area (+) above the right-hand tree

   2. Between two data points in the right-hand tree

3. By clicking on the grey area above the right-hand tree. In this way it is possible to create a data point without data from a KNX project file. This is necessary, for example, if the logic group is to be connected directly with a function within the EIBPORT visualisation.

The first two options create data points that are related to the KNX project.

Extend

Every data point can contain one sending / listening object and up to 19 listening objects: There are two ways to extend a data point:

1. Drag and drop from the left-hand tree to an existing data point.
   (In this case the data point type has to match which is ensured by an automatic filter.)

2. In the data point configuration (right-hand column) via the “Add Group Address” button

Configuration

 In the tree view of the data points, the top group address is always listening and sending, and the subsequent ones are only listening. The total number of group addresses per data point is limited to 20. The order can be changed via drag and drop.

In addition to the name and description of the data point, you can also configure the data point type and group addresses together with the individual description. These changes may then differ from the information status in the KNX set-up software ETS.

With data points which have not been created in a KNX project (i.e. manually by clicking on the grey surface), the data point type can also be changed at a later moment in time.

Important

If you change the type of a data point, it will also have an effect on the inputs and outputs of the logic groups in which it is used.

 Available data point types

A listing of the data types available in the LOGIKEDITOR is available here. If the data types have not yet been connected in the KNX set-up software ETS, or if a requested data point type is not implemented in the LOGIKEDITOR, with certain data types, via the “individual value range” function, you are given the option to configure the value range as required (see the following section).

Individual value range

To be able to depict the individual value ranges, you are able to change the factor, offset, minimum and maximum value of the data point. This selection is available to you with the numerical DPT main types (e.g. DPT 9.*). It is not possible, for example, to occupy DPT 3.* (Dimming), DPT 232.* (RGB) or DPT 16.* (Text) with an individual value range.

One example of use would be the use of DPT 9.* (two bytes floating point value) as DPT 9.004 (Lux 0 - 670.760). In such cases you can simply set the minimum value to 0.

Initialization

In addition to the settings for all data points, you are also able to equip a data point with individual initialisation settings. The configuration is described here under data point initialisation.

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