Introduction

The SpaceLogic IHC Interface is a DIN rail-mounted device designed to work in tandem with the Wiser for KNX/homeLYnk controller (referred to as the controller). It is not a standalone unit. The IHC Interface allows the controller to receive signals from input devices connected to IHC Input modules and to control output devices connected to IHC Output modules. Together, the controller and the IHC Interface effectively replace an IHC Controller version 2 or 3, enabling continued use of the existing IHC wiring and connected devices.

To establish communication between the IHC Interface and the controller, users must install the IHC Plugin, a downloadable application available from the W4K Marketplace. This plugin pairs the IHC Interface with the controller and enables the mapping of IHC addresses to KNX group addresses and vice versa, which is essential for integrating IHC inputs and outputs into the KNX system.

Internally, the controller operates using KNX group addresses, and this mapping allows seamless interaction with devices connected via the IHC modules. Once connected and configured, the system can be reprogrammed to restore most of its original functions. Additionally, it can be expanded with KNX devices or Wiser/Zigbee devices using the SpaceLogic KNX Hybrid module.

With the IHC Plugin, your current IHC installation can be managed through the controller. Integration with Zigbee devices is supported via the KNX Hybrid module, and the entire system can be controlled using the Wiser KNX mobile app.

Limitations and Considerations

Functions previously controlled wirelessly via IHC Remote application cannot be re-established directly and must be rebuilt and integrated via KNX and the controller.
Room temperature/heating control can be configured via KNX and the controller.
The IHC Remote application is not supported and must be replaced by the Wiser KNX mobile application.
The IHC Visual and IHC FirmwareLoader applications are not supported.

However, you can import device settings from your existing IHC Visual 3 project into the plugin to facilitate management and migration of your IHC installation.

Prerequisites

Before installing and using the IHC Plugin, ensure the following prerequisites are met:

Hardware requirements	Wiser for KNX/homeLYnk controller with access to the web interface. Minimum hardware version: 3.2 Minimum firmware version: 3.1 SpaceLogic IHC Interface connected to the controller via ethernet cable. Properly wired IHC system, including input/output modules. Optional: IHC LED dimmer Optional: KNX Hybrid module for Wiser Zigbee device integration (via RS232). See the KNX Hybrid module user guide available here.
Software & tools	Access to the Marketplace via the controller’s web interface. eConfigure KNX or controller web Interface for firmware upgrades and configuration. Web browser for accessing the controller and plugin interface. To import your existing IHC configuration, have your IHC Visual 3 project file (`.vis`) ready. To configure the SpaceLogic IHC Interface via a web browser, it is necessary to use an HTTPS connection. Using HTTP may result in limited or improper functionality.
User permissions	Administrator access to the controller to install applications and perform pairing.
Network & connectivity	Stable local network connection between the controller and the SpaceLogic IHC Interface. The controller and the SpaceLogic IHC Interface must be connected to the same LAN network. Internet access (recommended) for downloading the plugin and enabling automatic updates. There is no difference in which LAN port (1 or 2) is used for connecting the controller and the router; the ports are interchangeable.
System preparation	Ensure that the IHC system wiring has been correctly transferred to the SpaceLogic IHC Interface. The SpaceLogic IHC Interface must be powered and accessible before starting the pairing process.

Key Features of the IHC Interface

Interface and connectivity	The connection between the controller and the SpaceLogic IHC Interface is established through an Ethernet cable. 8 IHC input datalines (total of 128 wired inputs) 16 IHC output datalines (total of 128 wired outputs) IHC wired devices are connected via existing IHC Input and Output modules, which in turn connect to the input and output datalines on the IHC Interface. Supported functions include: switching dimming blind control
Firmware upgrades	Firmware upgrades for the SpaceLogic IHC Interface can be performed using the IHC plugin.
Device integration	The SpaceLogic IHC Interface serves as a bridge between IHC devices and those supported by the controller, such as KNX and Wiser Zigbee devices, through the KNX Hybrid module (RS232). See the KNX Hybrid module user guide available here.
Bi-directional communication	The system supports bi-directional communication across protocols. For instance: Control IHC loads from a KNX device (e.g., a KNX Multitouch display). Send temperature sensor values from IHC to the SpaceLogic KNX valve drive controller. Control Wiser Zigbee devices (e.g., a ZigBee lamp outlet) from KNX and/or IHC devices. See the KNX Hybrid module user guide available here.
Resetting and commissioning	The SpaceLogic IHC Interface is equipped with an external button for resetting and commissioning. Pairing and commissioning with the controller can be initiated by pressing and holding the reset button for at least 1 second and no more than 5 seconds. To reset the SpaceLogic IHC Interface, press and hold the reset button for at least 5 seconds and no more than 10 seconds. Ensure the device is powered and accessible before starting the pairing process.
Interface communication	The controller can send and receive messages to and from the SpaceLogic IHC Interface, which communicates with the IHC Input and Output modules. A table or list view of connected IHC devices is available in the IHC plugin.
Programming interface	IHC Plugin eConfigure KNX