Multiple DoIP Central Units

Coupling of multiple Central Units.

With one TELETASK DoIP Central Unit you can control a large number of in- and outputs. For very large installations or installations where there exists a logical and/or physical division between the different parts of the building/complex it can be necessary/desirable to work with several Central Units.

  • Very large villa's ( several central units for the needed in- and outputs)
  • Professions (one central unit for the house and one for the practice).
  • Hotels
  • Company buildings

Up to ten DoIP central units can easily be connected to each other. It is recommended to situate the central units on a separate part of the network, so the communication between the central units will not be interrupted through internet traffic, copying of files from/to a network hard disk, printing to a network printer,
The number of in- and outputs and the number of functions which can be controlled with a system with several central units is simple the number of one central unit multiplied with the number of central units.
For example: for one central unit max. 500 local moods, 2 central units: 1.000 local moods, 3 central units: 1.500 local moods, 5 central units: 2.500 local moods, 10 central units: 5.000 local moods.
The split up of the intelligence of the several central units increases also the reliability of the system. If one central unit drops out, the other central units can continue functioning, only the hardware (in- and outputs) which are coupled with the defect central unit cannot be controlled any more.

Remark: In case you want to add a cool or heat relais (or dimmer) to a TELETASK sensor (with TDS12301, TDS12311, AURUS, TDS10009, …), you have to make sure that this relais (or dimmer) is on the same central unit as the one of which the sensor is connected to.


For an installation with several central units, only one .NBT file has to be created which contains all information of all central units.


To create a file for several central units you start with a normal file for one central unit.

  • Adding a central unit: via 'Extra', 'Central units', 'Add'.
  • The added central unit gets automatically a letter (A-J) you can also choose a name and type (MICROS+, NANOS or PICOS) for this central unit.
  • Additional central units can be added as described here above (with a maximum of 10 central units).
Remark: Once the type (MICROS+, NANOS or PICOS) is chosen, it can't be changed afterwards.
Remark: you can use different types of central units in one installation with several central units. (e.g. two MICROS+ central units, three NANOS central units and one PICOS).

Central Unit bounded

In- and outputs are bounded through hardware to a specific central unit. Either they are direct in- and outputs of a MICROS+/PICOS central unit or they are located on a bus of a certain central unit. Yet, all outputs can be controlled from any central unit.
The address of an interface will be preceded by the letter (A-J) of the central unit on which the interface is connected:

  • A1 I24 (Central unit A, bus 1, input interface at address 24)
  • C3 O05 (Central unit C, bus 3, output interface on address 5)

In- and outputs are also preceded by the letter of the corresponding central unit:

  • REL A23 (relays 23 at central unit A)
  • REL B23 (relays 23 at central unit B )
  • DIM C1(dimmer 1 at central C)

Contrary to the interfaces and in- and outputs, the functions are mostly not centrally bounded. A local mood can perfectly control the outputs of different central units and also a local mood can be controlled from any central unit.
Exceptions on this rule are the Motor function and the RGB function, these functions are closely bounded with the hardware (2 relays or 3 dimmers) and are linked to a specific central unit (the central unit on which the relays or dimmers are defined). Nevertheless these functions can be controlled by every central unit.

In PROSOFT one central unit will always be actif. The active central unit can be changed in the menu bar of the main screen of PROSOFT.


If you go to the in- or outputs, you will only see the interfaces which are defined on the active central unit. If you want to couple a relays to an input/function, you will only see the relays of the active central unit (= same central unit as the central unit of the input). If wanted, you can extend this list to a list of all relays by selecting the bottom item double arrow.

General moods

Using Moods in a multiple Central Unit project, a new function is added: the global mood. A global mood can control all outputs of all central units. A general mood can only control outputs of one central unit; While a general mood is bounded to one central unit, a global mood is not. Similar to all functions general and global moods can be controlled from every central unit. The number of global moods is restricted to 10.

Remark: A general mood who has been defined as ‘global mood’, will be count on every central. For example, if there are 45 General moods on central A, 20 for central B and 5 global moods, that you can still make 25 general moods for central B, but no more for central A and also no more global moods.

Step Functions

The “active step” of a step function is saved seperatly on each central unit. So if the step function is set to “step 1” on central unit A, activating the step function on central unit B will not set the step function to “step 2” but to “step 1”. Activating the step function again on central unit B will set the step function to “step 2” but it will reset the step function on central unit one. Activating the step function on central unit one, will cause it to go to step 1 again.

Touch Panels

  • All simple touch panels: TDS12117, cookie's, AURUS, AURUS-OLED, proximity readers… can control every output of every central unit.


Every central unit has his own clock tables. From a clock table on a central unit you can control outputs on another central unit. For editing clock tables of a specific central unit, this central unit must be, similar as in PROSOFT, activated.

The active clock table (Automatic / Workday / Weekend / Simulation / None / Custom) is always true for all central units!


Similar to the working of one central unit.


A GUI/GUI+/iSGUI always connects to one central unit, but it is possible to control all functions of all central units. This means for example that you only need 1 GUI+ license to control the entire installation from a single Touchscreen.


Similar to the working of one central unit.


PROSOFT Suite sends the needed information to the different central units. For every central unit there is a connection needed and therefore an Ethernet connection is needed when you want to work with several central units.

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