FAQ

No, this is not permitted due to the risk of overheating of the adapter units.

Please note the user manual of the corresponding devices for this: “Do not connect multiple plug adapters into one another.”

In accordance with VDE 0620-2-1 Section 8.9,

• portable multiple socket strips (for example standard x-number socket strips) and
• plug adapters (devices with integrated plug and sockets) amongst other products,

must bear the “do not connect multiple plug adapters into one another” notice.

Apple HomeKit is currently supported by only a few smart home devices and is still in the initial state of its development.

We are principally interested in Appe HomeKit but, however, at its current state the system does not imply all required application functions that are necessary for a high-performance wireless radiator thermostat. This is why we have decided to provide our own native Android and iOS app that enable all functionalities of our radiator thermostats.

The duty cycle is a legally regulated limit of the transmission time of devices in the 868 MHz range. The aim of this regulation is to safeguard the operation of all devices working in the 868 MHz range.

In the 868 MHz frequency range we use, the maximum transmission time of any device is 1% of an hour (i.e. 36 seconds in an hour). Devices must cease transmission when they reach the 1% limit until this time restriction comes to an end.

During normal operation, the duty cycle is not usually reached. However, repeated and wireless-intensive teach-in processes mean that it can be in isolated instances during start-up or initial installation of a system. This can happen for example when setting and testing the detection range of taught-in motion sensors. If the duty cycle limit is exceeded, the device may stop working for a brief period.

This is due to the fact that permanent transmission is not permitted in the 868 MHz range (maximum transmission time: 36 seconds per hour). Therefore, when this limit is reached, further transmission by the devices must be prevented. Perform a short function check on the device (e.g. by removing and reinserting the batteries). If the check does not restore the device to readiness for operation, it has exceeded the duty cycle and will be ready for operation again in an hour's time.

Generally, this is possible. But, however, the degree of self-discharge is considerably higher for rechargeable batteries (especially cheap batteries) than for standard batteries. While standard batteries hold their charge for several years (depending on manufacturer and type), rechargeable batteries are discharged within few weeks or months, even without using. This reduces the benefits of rechargeable batteries that much, that most of our clients prefer using standard batteries.

One-pipe heating systems are unsuitable for electronic control systems since the feed temperatures in radiators may be subject to great variations. This means that exact adjustment of the room temperature cannot be guaranteed.

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.

• Living comfort: tedious repetitive operations in the home (opening/closing canopies, closing shutters, opening garage doors, etc.) are automated. Various different applications can be combined. For example, garden lighting can be switched on when you close the shutters in your home office or – if you leave the house – the heating can be turned down when you activate the alarm system.
  
• Pleasant climate control: Room temperature and air quality can be controlled using Homematic products. Bedrooms can be ventilated automatically for a few minutes each morning at a convenient time, or blinds and shutters can be programmed to open and close when the sun rises and sets. As a result, rooms will never feel too hot or too cold.
  
• Energy conservation: if you choose to automate your building engineering with Homematic products, actions which would otherwise be isolated will be automatically matched in the overall system. Whilst a room is being aired, the heating appliances in it will be turned down. On hot days, the system will start by closing the shutters rather than activating the air conditioning straight away. Room-specific temperature control can also be implemented (heating appliances will not be switched on in rooms which are not in use). As you can see, comfort in the home and energy conservation go hand in hand.
  
• Security: Homematic products provide increased protection against break-ins by closing all doors and windows from a central location, activating the alarm system and switching lighting on and off at random for presence simulation. The “Feedback” function localises and also reports errors and problems affecting the home automation system immediately as they occur.

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.

The Homematic system has been designed flexibly and open for expansion. Therefore, we provide individual partner solutions for the Homematic Central Control Unit. We are always looking for new partner solutions in order to supplement the system. Currently, we can unfortunately not refer to a partner that offers a solution for the integration of Google Assistant.

The Homematic system has been designed flexibly and open for expansion. Therefore, we provide individual partner solutions for the Homematic Central Control Unit. For the integration of Amazon Alexa, for example our partner CloudMatic offers a solution. More information can be found at the following: https://alexa.cloudmatic.de

It should be considered that the Homematic system has been specified and developed for a “normal” family house. For installations in larger buildings, we recommend e.g. a cooperation with our partner Contronics.

The system limits per Homematic Central Control Unit CCU2 are specified as follows:

• 400 radio channels and
• 127 wired devices in addition.

Please observe the following:
The number of wireless devices depends on the number of channels of all used devices!

Example:

• Homematic Wireless Switch Actuator 1 channel has one channel at 400 devices
• Homematic Wireless Switch Actuator 4 channels has four channels at 100 devices  

Usually, different devices are used within one installation. From our experience, the maximum number of wireless devices that can be operated trouble-free by the CCU2 within one installation is therefore between 100 and 120 devices.

Although the system does not need a Central Control Unit for configuration and operation, it can be added at any time. The Central Control Unit will expand the functional scope of the system still further. However, all fundamental functions can run without a Central Control Unit.

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.

The Homematic system has been designed flexibly and open for expansion. Therefore, we provide individual partner solutions for the Homematic Central Control Unit. We are always looking for new partner solutions in order to supplement the system. Currently, we can unfortunately not refer to a partner that offers a solution for the integration of Google Assistant.

The Homematic system has been designed flexibly and open for expansion. Therefore, we provide individual partner solutions for the Homematic Central Control Unit. For the integration of Amazon Alexa, for example our partner CloudMatic offers a solution. More information can be found at the following: https://alexa.cloudmatic.de

The Homematic Smoke Alarms comply with the VdS classification and are characterised by a high sensitivity level.

The triggering threshold can be reduced during the operating time of the device due to deposits such as dust or insects in the smoke chamber. Additional dust swirls e.g. caused by draught can trigger false alarms.

This is why Homematic Smoke Alarms are equipped with an internal sensitivity alignment. This makes sure that deposits are allowed within a certain permitted range. The calibration is performed during the function test and should be executed ideally once a week, but at least once a month for your own security. To do this, press and hold down the test button of the smoke alarm for longer than 2 seconds. Please refer to the user manual of the Homematic Smoke Alarm in sec. 9.2 “Periodic checking and indication of errors” for further information on evaluation of the function test.

It should be considered that the Homematic system has been specified and developed for a “normal” family house. For installations in larger buildings, we recommend e.g. a cooperation with our partner Contronics.

The system limits per Homematic Central Control Unit CCU2 are specified as follows:

• 400 radio channels and
• 127 wired devices in addition.

Please observe the following:
The number of wireless devices depends on the number of channels of all used devices!

Example:

• Homematic Wireless Switch Actuator 1 channel has one channel at 400 devices
• Homematic Wireless Switch Actuator 4 channels has four channels at 100 devices  

Usually, different devices are used within one installation. From our experience, the maximum number of wireless devices that can be operated trouble-free by the CCU2 within one installation is therefore between 100 and 120 devices.

Although the system does not need a Central Control Unit for configuration and operation, it can be added at any time. The Central Control Unit will expand the functional scope of the system still further. However, all fundamental functions can run without a Central Control Unit.

If you have already set a system security key for your Homematic system and the corresponding devices are still connected to your Homematic Central Control Unit, you can remove the system security key from your devices as follows:

In the WebUI, select “Settings” and “Devices”. In the configuration adapter software, please select “Devices”.

Here, you receive an overview of all connected Homematic devices that you can now remove one by one using the button “Delete” in the drop-down menu “Restore factory settings of the device”. In this way, the factory settings are restored. Confirm your selection with the button “Delete”.

Please note, that for some devices the teaching mode has to be activated manually (e.g. remote controls, wall-mount transmitters, flush-mounted interfaces, etc.). This will also be indicated by the corresponding service message. If no service message appears, the disconnection and reset have been successfully completed.

After you have deleted all devices in this way and restored the factory settings they do not have a system security key any more.

If you are using the Homematic Configuration Adapter, the software has to be deleted from your PC after you have disconnected the devices. In addition, the following folder has to be deleted manually if it has not been done automatically be the system.

Installation folder e.g.: C:\ProgrammData\Bidcos-Service

You can use the Homematic Central Control Unit or a Homematic Configuration Adapter to transfer a system security key to your Homematic devices. By setting the system security key the devices are secured from manual reset at the device itself. Furthermore, they cannot be connected to a Homematic Central Control Unit without entering the system security key.

You can use the system security key for example if you want to use Homematic devices in public places such as schools, hotels or holiday homes. If you are using the Homematic devices for private purposes we do not recommend to set the Homematic security key as there is no possibility to reset the key in case it might get lost. Please observe the following:

Make note of your system security key, and store this information at a secure place! For security reasons, it is not possible to reset or bypass the system security key. Setting the system security key affects all connected Homematic components in the Homematic system.

It is not possible to directly restore the factory settings of the device as described in the corresponding user manual.

For security reasons, there is no “master key” that can be used for resetting the device.

Some of our partners offer a special service for such cases. Please directly contact your supplier for finding an appropriate solution.

The recovery system is only required if the software of the Central Control Unit has been damaged. This can happen, for example, if the power supply is interrupted during a software update.

If the Central Control Unit signals via the device LEDs that the normal operating system can no longer be started (e.g. the Power, Internet, and Info LEDs light up continuously), a software update must be carried out via the recovery system.

If you are not transferred to the WebUI user interface when you enter http://homematic-ccu2 in your web browser, there are different solutions for rectifying the problem.

1. Enter the IP address of your Central Control Unit
2. Connection via USB cable

If the radiator is installed at a disadvantageous place (e.g. behind a curtain or cupboard), the temperature measured by the sensor may be different to the room’s actual ambient temperature. If the thermostat is unable to compensate the difference, a general adjustment using the temperature offset has to be made. The temperature offset can be set individually for all thermostats of each room in a range between +/- 3.5 °C.

The Homematic Smoke Alarms comply with the VdS classification and are characterised by a high sensitivity level.

The triggering threshold can be reduced during the operating time of the device due to deposits such as dust or insects in the smoke chamber. Additional dust swirls e.g. caused by draught can trigger false alarms.

This is why Homematic Smoke Alarms are equipped with an internal sensitivity alignment. This makes sure that deposits are allowed within a certain permitted range. The calibration is performed during the function test and should be executed ideally once a week, but at least once a month for your own security. To do this, press and hold down the test button of the smoke alarm for longer than 2 seconds. Please refer to the user manual of the Homematic Smoke Alarm in sec. 9.2 “Periodic checking and indication of errors” for further information on evaluation of the function test.

It should be considered that the Homematic system has been specified and developed for a “normal” family house. For installations in larger buildings, we recommend e.g. a cooperation with our partner Contronics.

The system limits per Homematic Central Control Unit CCU2 are specified as follows:

• 400 radio channels and
• 127 wired devices in addition.

Please observe the following:
The number of wireless devices depends on the number of channels of all used devices!

Example:

• Homematic Wireless Switch Actuator 1 channel has one channel at 400 devices
• Homematic Wireless Switch Actuator 4 channels has four channels at 100 devices  

Usually, different devices are used within one installation. From our experience, the maximum number of wireless devices that can be operated trouble-free by the CCU2 within one installation is therefore between 100 and 120 devices.

Although the system does not need a Central Control Unit for configuration and operation, it can be added at any time. The Central Control Unit will expand the functional scope of the system still further. However, all fundamental functions can run without a Central Control Unit.

In a Safari browser on a MAC, the downloaded file may be automatically opened and therefore unzipped. Since the CCU expects this file and cannot find it, an error message will be displayed.

An operating manual with information on deactivating automatic opening of downloaded files is available for download in PDF format:

If the update has not been performed successfully, proceed as follows:

• Remove the batteries from the radiator thermostat and keep the left and right button pressed when inserting the batteries.
• Then click on the Update button in the WebUI as quickly as possible (Settings - Devices - Radiator Thermostat: Set). This process may take several minutes.
• "FUP" is shown on the radiator thermostat display.
• The "Firmware update successful" message is displayed in the WebUI.
• The radiator thermostat is restarted and behaves in the same way as after a change of battery.

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.

It should be considered that the Homematic system has been specified and developed for a “normal” family house. For installations in larger buildings, we recommend e.g. a cooperation with our partner Contronics.

The system limits per Homematic Central Control Unit CCU2 are specified as follows:

• 400 radio channels and
• 127 wired devices in addition.

Please observe the following:
The number of wireless devices depends on the number of channels of all used devices!

Example:

• Homematic Wireless Switch Actuator 1 channel has one channel at 400 devices
• Homematic Wireless Switch Actuator 4 channels has four channels at 100 devices  

Usually, different devices are used within one installation. From our experience, the maximum number of wireless devices that can be operated trouble-free by the CCU2 within one installation is therefore between 100 and 120 devices.

The recovery system is only required if the software of the Central Control Unit has been damaged. This can happen, for example, if the power supply is interrupted during a software update.

If the Central Control Unit signals via the device LEDs that the normal operating system can no longer be started (e.g. the Power, Internet, and Info LEDs light up continuously), a software update must be carried out via the recovery system.

If you are not transferred to the WebUI user interface when you enter http://homematic-ccu2 in your web browser, there are different solutions for rectifying the problem.

1. Enter the IP address of your Central Control Unit
2. Connection via USB cable

If the update has not been performed successfully, proceed as follows:

• Remove the batteries from the radiator thermostat and keep the left and right button pressed when inserting the batteries.
• Then click on the Update button in the WebUI as quickly as possible (Settings - Devices - Radiator Thermostat: Set). This process may take several minutes.
• "FUP" is shown on the radiator thermostat display.
• The "Firmware update successful" message is displayed in the WebUI.
• The radiator thermostat is restarted and behaves in the same way as after a change of battery.

The recovery system is only required if the software of the Central Control Unit has been damaged. This can happen, for example, if the power supply is interrupted during a software update.

If the Central Control Unit signals via the device LEDs that the normal operating system can no longer be started (e.g. the Power, Internet, and Info LEDs light up continuously), a software update must be carried out via the recovery system.

If you are not transferred to the WebUI user interface when you enter http://homematic-ccu2 in your web browser, there are different solutions for rectifying the problem.

1. Enter the IP address of your Central Control Unit
2. Connection via USB cable

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.

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.

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.

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:

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

If the radiator is installed at a disadvantageous place (e.g. behind a curtain or cupboard), the temperature measured by the sensor may be different to the room’s actual ambient temperature. If the thermostat is unable to compensate the difference, a general adjustment using the temperature offset has to be made. The temperature offset can be set individually for all thermostats of each room in a range between +/- 3.5 °C.

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.

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.

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 and 43439
• Communication between Smartphone app and Cloud: 6969, 8888 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.

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.

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.

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.

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.

To keep the Homematic IP devices up to date, Homematic IP offers the opportunity to update the device software (firmware) of the components. The device firmware controls all functionalities of your Homematic IP devices. The background update is generally used for Homematic IP devices. This means that the firmware of the device is updated in the background. Some other devices are brought up to date using a live update which needs to be executed directly in the Homematic IP app.

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

By implementing the required interface, Google has recently created the foundation for integration of our shutter and blind actuators so that we can now start adapting our skills for Google Home.

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.