260422_LSS100500_IHC_Interface_SW

Input Devices

The Input devices sub-tab allows you to configure and manage all IHC input devices connected to the system. This interface provides a visual and intuitive way to map physical IHC inputs to input functions implemented in the controller and to KNX group addresses (real or virtual).

Layout Overview

  • Left panel: Displays a list of all imported or manually added IHC input device mappings. You can associate devices with a input module and select it for detailed configuration.

  • Center panel: Shows a graphical representation of the IHC input module and the IHC Interface. This visual helps you understand how devices are physically connected and routed through the system.

    NOTE: To save space, you can hide the center panel using the button Hide visualization under it.

    Right panel (device details): When you select a device from the list, its configuration details are shown here. This is also where you can adjust the device settings as needed. You can see the details as follows:

Device Details

  1. Device type (Drop-down menu)
    Select the type of IHC input device. Supported types include:

    • Binary input

    • Push button

    • PIR sensor

    • Temperature sensor

  2. Function (based on the selected device type):
    Choose the intended function like Room temperature + Humidity.

  3. Name
    Assign a custom name to the device for easier identification in the project.

  4. Physical address (Read only)
    This is an internally calculated address (range: 0 – 127) representing the device’s physical position in the IHC system.

  5. Logical address (Read only)
    Indicates how the signal is routed:

    • From the device to the input module

    • From the input module to the IHC Interface

  6. Mappings and attributes Depending on the selected function, you can define one or more mappings and configure additional attributes such as:

    • Select object
      This option allows you to associate the IHC input device with a KNX object.
      You can select an already created object or you can create a new one.
      Once you click on Add new object, new window will appear.
      Here you can set the name of the object, comments, units, and specify whether it is a Virtual KNX object.

    • Status KNX group address: This address is used to report the current state of a device – typically whether it is on or off.

    • Main KNX group address: Defines the primary communication channel between the IHC device and the KNX bus.

    • Additional KNX group addresses: This field is used to configure supplementary communication channels for a device (e.g., for feedback, dimming level, etc.).
      A temperature sensor might use additional addresses to report humidity or floor temperature.

    • Min. sending time: This configuration parameter defines the minimum interval between two consecutive transmissions of the same value from an IHC input device to the KNX system.
      If a temperature sensor is configured with a minimum sending time of 10 seconds, it will not send the same temperature value more than once within that 10-second window – even if the value remains unchanged.

    • Temperature delta: Parameter that defines the minimum change in temperature that must occur before a new value is sent to the KNX system.
      If set to 0.5 °C, the sensor will only send a new temperature value if the current reading differs from the last sent value by at least 0.5°C.

Once you have completed the configuration of an input device, make sure to click Save changes to apply and store your settings. This ensures that your mappings are correctly registered and ready for integration with the rest of the system.

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