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Domina the System

BUS system usually means a group of devices connected to one single communication channel. The main function of a BUS is to physically and logically connect the devices and reduce the number of interconnections and the time required to transfer information from one device to another. Each device, known as terminal, station, node or point, can send and receive electric signals sequentially. These signals are information or messages which have been coded through a special protocol (Domina uses the AVEbus proprietary “open” protocol). The message receiver is identified by its address which is an integral part of the message. A special configuration procedure assign to each device its own address. The increasing demand for automatic control and management systems in modern buildings requires, so- phisticated wiring systems that may interfere with the installation of new functions as well as maintenance and updating of already existing ones, that can often be carried out only with very expensive interventions. Installing Domina by AVE means to rely on a system that not only offers automation, comfort and communication functions which are required in a modern house, but also count on an expandable and modular system whose basic functions may be expanded according to the needs of ever demanding customers. This system is of the “distributed intelligence” type meaning that each component has one or more functions and can communicate with the other components through one single cable (bus line).

Using Domina home automation system also means to facilitate installation, improve maintenance and expand the existing systems in a very easy way.

Home automation configuration

Each Domina bus device has one or more channels; each one is totally independent and can be identified throu- gh an address which is assigned during programming. Each channel of each single AVEbus device can be freely addressedindependently from the others. One channel of a control device (Tx) and one actuator device (Rx) having the same address are “logically connected” one of an another. The actuator device receives the message sent by the control device and activates the load which is physically connected to it. The address of each channel of the Domina bus devices is made of two alphanumeric characters (according to a hexadecimal system from 0 to F).

The control device can be programmed to control one single address associated with an actuator device, one group of addresses associated with several actuator devices or all addresses of the actuator devices. This mechanism is programmed and managed according to the address assigned to the control device, where the first alphanumeric character of the address represents the group or “family” of addresses of the actuator devices and the second alphanumeric character represents the single actuator device which belongs to that group of addresses. Because of the hexadecimal system, there are 16 groups of addresses (families) each composed of 16 independent addresses (called “points”).

The channels of the AVEBus devices can be basically addressed in three ways:

  • Direct mode (Point – Point): a single channel of a control device ( Tx) controls only the channels having the same address of one or more actuator devices (Rx).
  • By group (multicast): a single channel of a control device (Tx) controls all the channels of the actuator devices whose first digit of the address is the same as the second digit of the address of the control device (Tx). 
    The address of the control device must always begin with the special value “F” followed by the group of addres- ses to be controlled. There are 16 groups with a maximum of 16 addresses each.
  • General (broadcast): a single channel of a control device (Tx) controls all the channels of the actuator devices contained in the system. The address of the control device must be set to “FF”.

Home Automation direct address

Programming is made by connecting the PRAB01 programmer or the BSA-USB interface to the device to give each component of the system an address and operational mode in a very simple and intuitive way.