FAQ - Common Questions

General information(15)

  • What are the limits of the system? How many devices can I teach-in?

    There is no precise maximum number of devices in Homematic and Homematic IP. The Access Point covers typical family homes and flats in terms of the functional range, without the repeater being required, and therefore supports a number of rooms and devices which is more than sufficient.
    The Homematic IP app is optimised for managing up to 20 rooms, 80 devices and 15 smartphones per Access Point. Much bigger installations, covering a great deal more than a family home, have been supported via the CCU and partner solutions for many years.

  • What are the Auto/Manu/Holiday function operating modes?

    You can choose between the operating modes auto, manu and holiday.

    These general modes have the following effects:

    Auto
    In “Auto” mode, the weekly programs set by you run in the respective rooms. The temperature is automatically controlled in accordance with the saved weekly program. The setpoint temperature is configured at the desired value for the respective periods, which the controller then runs.

    Manu
    In “Manual operation“ mode, the weekly programs are disabled. The temperature that you set is permanently maintained.

    Holiday function
    The holiday function is used to set a manually selected temperature until a fixed time. At this set time, the system then changes the system back to auto mode with the added weekly program.

  • Is it possible to use Homematic IP devices and functions with Amazon Alexa routines?

    With Alexa routines, multiple actions can be executed with a single voice command at the same time or at a specific point in time.

    In connection with Homematic IP and Alexa routines, it is currently possible to switch on several Homematic IP devices, such as switching actuators for lighting, at the same time. When switching lights via dimming actuators, the dimming value of lights can also be adjusted in percent. In addition, the activation of the eco mode in Alexa routines can be included. Further functions in connection with Alexa routines, such as the integration of shutter and blind actuators, will continue to be expanded in the future.

  • Which Homematic IP functions are available during active or inactive Internet connection?

    Set-up and control of the Homematic IP system is carried out via the free Homematic IP smartphone app in connection with the Homematic IP cloud service.

    In comparison with other systems, Homematic IP actuators offer the benefit that cloud-dependent functions like heating or time profiles as well as the communication of single devices with each other remain functional also without active Internet or cloud connection thanks to an integrated memory of the devices. Cloud-dependent functions are all rules created with the “automation” function, shutter configurations like lockout protection, storm protection, heat protection or escape function as well as the integration of voice control. They are verified in the cloud and require active Internet and cloud connection at all times. It is recommended to connect Homematic IP devices via group functions, like light and shutter groups, for example. On the one hand, the radio traffic is reduced. On the other hand, the connections created via groups remain functional also without connection to the Internet.

    When using voice command services like Amazon Alexa or Google, it is also recommended to use Homematic IP remote controls or push-buttons for controlling your devices to enable switching of your components also without active voice control. 

    The following file gives an overview of available functions with or without active Internet connection:

  • What has to be considered with regard to interferences when installing the CCU or Homematic IP Access Point?

    Every electronic device or any current-carrying conductor builds up an electromagnetic field. These fields occur in a wide variety of strengths and frequency ranges.

    This applies in particular to objects that emit radio waves:

    • WiFi routers
    • DECT stations
    • TVs
    • Computers
    • Radio speakers and radio headsets
    • Audio and video systems
    • Alarm systems
    • Mobile phones and cordless phones
    • Microwave ovens
    • Electronic ballasts for fluorescent lamps
    • Audio baby-monitors
    • etc.

    These interferences can be substantially reduced by keeping a distance as large as possible between the radio components and those potential sources of interference.

    We recommend a free installation site for the Central Control Unit or Access Point without the above-mentioned sources of interference in direct vicinity (ideally at least 1 m distance), in order to achieve an optimal wireless coverage.

  • Why is it not possible to control my Homematic IP Shutter and Blind Actuators via Google Assistant?

    The implementation of voice control systems on the market is realised via interfaces offered by the manufacturers. Depending on the provider, different functions and possibilities are supplied.

    Currently, Google Assistant unfortunately does not yet contain any voice commands for controlling shutters and blinds. As soon as the function will be provided by Google, it will be possible to control your Homematic IP components as well.

  • Is it possible to control Homematic IP devices without Homematic IP Access Point via Amazon Echo devices with integrated smart home hub?

    The integration of Homematic IP with Amazon Alexa takes place directly via the Homematic IP cloud, that is, in principle, via the Homematic IP Access Point.

    The Amazon Alexa device variant Echo Plus supports a variant of the ZigBee protocol, which directly supports Philips HUE lights. With other Amazon Alexa devices, also an additional gateway is required for Philips HUE.

    Thus, the cheapest way to set up voice control with Amazon Alexa is an Amazon Echo Dot + Homematic IP Access Point.

  • In which languages is the Homematic IP app available?

    Currently, the app is available in German, English, French, Dutch, Italian, Spanish, Polish, Russian, Danish, Finish, Swedish and Norwegian.

  • Are the systems manufactured by eQ-3 compatible with one another?

    In the browser cache, the web browser temporarily stores websites and pictures. If websites are visited frequently, the data does not need to be downloaded from the Internet again. In this way, websites can be displayed faster. During the firmware update of the Homematic Central Control Unit, some data of the CCU2 that is stored temporarily in the browser cache will be updated. To avoid any problems during the update of a new firmware version we recommend to clear the browser cache after each update.

  • What does “IP” mean? Is it possible to integrate all IP devices (e.g. VoIP phone IP cameras etc.) into the system?

    All Homematic IP devices communicate via IPv6 or more precisely via UDP/IP. Using IP, all devices in the smart home can be operated within one network and be combined via corresponding applications.
    That means, that e.g. IP cameras can be integrated into the Homematic IP solution if the corresponding application supports the Homematic IP protocol. In the future, also other communication media will be supporting Homematic IP as radio technology for other devices.

  • How secure is Homematic IP? Can it be hacked from the outside?

    Homematic IP takes the security in home control to a new level.
    Even the teach-in procedure is cryptographically secured. Unlike other radio technologies such as WLAN, Bluetooth (devices without display) or ZigBee, Z-Wave, DECT, ULE and EnOcean, it is not possible to intercept keys during installation.
    During operation, data packages are encrypted and authenticated. Therefore, we rely on generally accepted and published standards such as AES-128 and CCM/RFC3610.
    Also the communication between the Access Point and the Homematic IP cloud, as well as the connections between the app and the cloud, are securely protected by online security procedures.
    The security concept and especially the radio protocols have been tested by renowned and independent experts in the field of security. For example, the climate control solution of Homematic IP has been rated “very good” by the test lab AV-Test.

  • For how long will the software (app) of Homematic IP be maintained?

    A regulation that ensures our customers the long-time operation is part of our Terms of Use.
    eQ-3 is known for supporting its product lines for a particularly long period of time without any compromises in terms of backward-compatibility. This is for the example the case with FS20 since more than 15 years and now 10 years with Homematic.

  • Will the Homematic IP devices be integrated into existing Homematic apps (Penzler, Orbylon, HomeDroid, Home24, Mediola, IP Symcon, Homeputer)?

    Yes, this is already possible with a majority of Homematic apps.
    The technical requirements are already in place and Homematic and Homematic IP are compatible with the CCU2.

  • Does Homematic IP support different time zones?

    Yes, different time zones are being supported. The times of the week profiles are always based on the time of the Access Point location, this means the time zone that has been configured for the Access Point.

  • Do I have to expect running costs? If yes - to what amount?

    No, there are no running costs such as server rental costs, costs for apps in the app store etc.
    It might be possible - but currently not yet planned - to extend the free app by additional services with in-app purchase possibilities.

Technology(12)

  • Can Homematic IP products be directly connected to each other (as for Homematic)?

    Can Homematic IP products be directly connected to each other (as for Homematic)?

    The devices can directly communicate with each other. This means that connections, for example between window contacts and heating providers, are then available in a room if the internet connection becomes disrupted at some point.
    On configuration, for example the assignment of devices to rooms, the required connections between devices are automatically created via the Homematic IP Access Point and are not manually produced as they are for Homematic.

  • Can I use a window contact in a climate control solution as well as in another point solution (for example security)? Or do I need to apply two window contacts to one window?

    One window contact can be used in an overarching way for multiple point solutions on a Homematic IP Access Point or for various solutions in a CCU2/CCU3. Several window contacts in one window are not required.

  • Can the wireless range of the system be increased?

    Yes, the Homematic IP radio protocol supports routing functions in mains-powered devices. The routing function can be activated via the Homematic IP smartphone app or the WebUI (user interface). The range extension can currently be used for the following Homematic IP products:

    • Homematic IP Pluggable Switch (HmIP-PS)
    • Homematic IP Pluggable Switch and Meter (HmIP-PSM)
    • Homematic IP Switch Circuit Board (HmIP-PCBS)

    The Homematic IP system is based on the same particularly effective and robust wireless technology which has already proven its success with millions of devices from Homematic, MAX! and RWE Smart Home (innogy) too. This means that range extension is usually not required.

  • Is it possible to use Homematic IP devices and functions with Amazon Alexa routines?

    With Alexa routines, multiple actions can be executed with a single voice command at the same time or at a specific point in time.

    In connection with Homematic IP and Alexa routines, it is currently possible to switch on several Homematic IP devices, such as switching actuators for lighting, at the same time. When switching lights via dimming actuators, the dimming value of lights can also be adjusted in percent. In addition, the activation of the eco mode in Alexa routines can be included. Further functions in connection with Alexa routines, such as the integration of shutter and blind actuators, will continue to be expanded in the future.

  • What has to be considered with regard to interferences when installing the CCU or Homematic IP Access Point?

    Every electronic device or any current-carrying conductor builds up an electromagnetic field. These fields occur in a wide variety of strengths and frequency ranges.

    This applies in particular to objects that emit radio waves:

    • WiFi routers
    • DECT stations
    • TVs
    • Computers
    • Radio speakers and radio headsets
    • Audio and video systems
    • Alarm systems
    • Mobile phones and cordless phones
    • Microwave ovens
    • Electronic ballasts for fluorescent lamps
    • Audio baby-monitors
    • etc.

    These interferences can be substantially reduced by keeping a distance as large as possible between the radio components and those potential sources of interference.

    We recommend a free installation site for the Central Control Unit or Access Point without the above-mentioned sources of interference in direct vicinity (ideally at least 1 m distance), in order to achieve an optimal wireless coverage.

  • Why is it not possible to control my Homematic IP Shutter and Blind Actuators via Google Assistant?

    The implementation of voice control systems on the market is realised via interfaces offered by the manufacturers. Depending on the provider, different functions and possibilities are supplied.

    Currently, Google Assistant unfortunately does not yet contain any voice commands for controlling shutters and blinds. As soon as the function will be provided by Google, it will be possible to control your Homematic IP components as well.

  • Is it possible to control Homematic IP devices without Homematic IP Access Point via Amazon Echo devices with integrated smart home hub?

    The integration of Homematic IP with Amazon Alexa takes place directly via the Homematic IP cloud, that is, in principle, via the Homematic IP Access Point.

    The Amazon Alexa device variant Echo Plus supports a variant of the ZigBee protocol, which directly supports Philips HUE lights. With other Amazon Alexa devices, also an additional gateway is required for Philips HUE.

    Thus, the cheapest way to set up voice control with Amazon Alexa is an Amazon Echo Dot + Homematic IP Access Point.

  • Which system requirements are necessary for Homematic IP? Which operating systems (Android, iOS, Windows Phone) are supported?

    Android smartphones from version 4.1 and iPhones from iOS version 8 are being supported. This covers more than 90 % of the market and the devices installed.
    We actively continue to monitor the Windows Phone and intend to support Windows Phone if the market share further increases and the launch of Windows 10 will be successful.

  • Which protocol does Homematic use?

    The Homematic protocol has been developed by eQ-3 exclusively for applications in smart homes and buildings. The development is based on more than 20 years of experience. Technically, the Homematic protocol is a bidirectional radio protocol. That means, that every receiver is able to confirm a command to the transmitter.

  • Are the systems manufactured by eQ-3 compatible with one another?

    In the browser cache, the web browser temporarily stores websites and pictures. If websites are visited frequently, the data does not need to be downloaded from the Internet again. In this way, websites can be displayed faster. During the firmware update of the Homematic Central Control Unit, some data of the CCU2 that is stored temporarily in the browser cache will be updated. To avoid any problems during the update of a new firmware version we recommend to clear the browser cache after each update.

  • How secure is Homematic IP? Can it be hacked from the outside?

    Homematic IP takes the security in home control to a new level.
    Even the teach-in procedure is cryptographically secured. Unlike other radio technologies such as WLAN, Bluetooth (devices without display) or ZigBee, Z-Wave, DECT, ULE and EnOcean, it is not possible to intercept keys during installation.
    During operation, data packages are encrypted and authenticated. Therefore, we rely on generally accepted and published standards such as AES-128 and CCM/RFC3610.
    Also the communication between the Access Point and the Homematic IP cloud, as well as the connections between the app and the cloud, are securely protected by online security procedures.
    The security concept and especially the radio protocols have been tested by renowned and independent experts in the field of security. For example, the climate control solution of Homematic IP has been rated “very good” by the test lab AV-Test.

  • Will the Homematic IP devices be integrated into existing Homematic apps (Penzler, Orbylon, HomeDroid, Home24, Mediola, IP Symcon, Homeputer)?

    Yes, this is already possible with a majority of Homematic apps.
    The technical requirements are already in place and Homematic and Homematic IP are compatible with the CCU2.

Hardware(5)

Mounting/installation(5)

  • What do I need to consider when setting up the Homematic IP Access Points?

    A Homematic IP Access Point can usually be operated without changes to the router settings.

    However, if the Access Point cannot create a connection to Homematic IP Cloud during commissioning (identified by blue flashing of the system button), this may be due to the individual settings of your router. Please also deactivate energy-saving mode (also often called Green mode in many cases) for the router port to which you have connected Homematic IP Access (and not on any port of the router).

    For smooth operation of the Homematic IP system, communication must be continuously possible via the following TCP port:

    • Communication between HAP and Cloud: 9292, 19292 and 43439
    • Communication between Smartphone app and Cloud: 6969, 8888, 16969, 18888 and 48335

    However, if no connection can be made to the cloud, check whether you have blocked BitTorrent in the access profile of your router (your Fritzbox).

    For any specific questions on router settings, please contact your internet provider or the router manufacturer.

  • What needs to be considered when using an isolating relay?

    Homematic IP shutter (HmIP-BROLL) and blind actuators (HmIP-BBL) for branded switches feature a measurement function which automatically detects the end positions of the shutters, awnings and blinds. Thanks to the measurement function, an automatic calibration run can be performed when setting up the actuator. Depending on the given load, the actuator identifies whether the shutter is running or has reached an end position, for example. At the beginning of the operation, the measurement function expects a minimum load of 5 watts at the outlet of the actuator. In certain conditions, such as the use of an isolating relay to control multiple motors via an actuator or for motor-specific properties such as a start ramp, this load is not achieved and the actuator immediately stops the operation. When using an isolating relay, we recommend disabling of the “Automatic detection of the end position” option. Perform a manual calibration run. To do this, please go to the Device Overview for this and select the device from the list.

    If a manual calibration run was already performed on set-up, the measurement function is disabled from the start.

  • Can Homematic IP be set up in a guest network?

    Since specific ports may be blocked in a guest network, we do not recommend setting up Homematic IP Access Points and the Homematic IP app in a limited guest network.

  • Can the wireless range of the system be increased?

    Yes, the Homematic IP radio protocol supports routing functions in mains-powered devices. The routing function can be activated via the Homematic IP smartphone app or the WebUI (user interface). The range extension can currently be used for the following Homematic IP products:

    • Homematic IP Pluggable Switch (HmIP-PS)
    • Homematic IP Pluggable Switch and Meter (HmIP-PSM)
    • Homematic IP Switch Circuit Board (HmIP-PCBS)

    The Homematic IP system is based on the same particularly effective and robust wireless technology which has already proven its success with millions of devices from Homematic, MAX! and RWE Smart Home (innogy) too. This means that range extension is usually not required.

  • What has to be considered with regard to interferences when installing the CCU or Homematic IP Access Point?

    Every electronic device or any current-carrying conductor builds up an electromagnetic field. These fields occur in a wide variety of strengths and frequency ranges.

    This applies in particular to objects that emit radio waves:

    • WiFi routers
    • DECT stations
    • TVs
    • Computers
    • Radio speakers and radio headsets
    • Audio and video systems
    • Alarm systems
    • Mobile phones and cordless phones
    • Microwave ovens
    • Electronic ballasts for fluorescent lamps
    • Audio baby-monitors
    • etc.

    These interferences can be substantially reduced by keeping a distance as large as possible between the radio components and those potential sources of interference.

    We recommend a free installation site for the Central Control Unit or Access Point without the above-mentioned sources of interference in direct vicinity (ideally at least 1 m distance), in order to achieve an optimal wireless coverage.

Software(3)