Clipsal C-Bus Especificações descarregar pdf (Página 43)

1B. C-Bus Concepts

2.4 Group Address

Within any application, Group Addresses are used to communicate between all units on the C-Bus

network. The C-Bus addressing scheme allows you to deﬁne up to 255 different groups per

application. Using Group Addresses to communicate between input and output units, it is possible to

emulate or expand beyond the functionality of conventional wiring.

Messages broadcast by an input device will be seen by the entire network, but only the units with a

corresponding Group Address will react.

By assigning a common Group Address to several units, a number of loads can be controlled by a

single button press on a wall switch. In the same way, a number of wall switches can control the same

load, by assigning a common Group Address.

2.5 Area Address

An Area Address controls an entire C-Bus unit. It is a variation of a Group Address and can be

programmed into the “Area Address” ﬁeld on most C-Bus units. This gives the ability to control all

channels on an output unit via one group address. If it is programmed to an input unit, it allows for all

indicator LED’s on the input unit to update quicker than the standard 3 second SR interval. If the input

unit has buttons programmed as timers, the timers will also be reset.

A common Area Address may be assigned to multiple output units. Up to 255 Area Addresses may

be used (000 to 254), taken from the same address pool as Group Addresses. The default is 255,

which is undeﬁned.

2.6 Levels and Selectors

A Group Address normally uses an additional parameter to provide increased ﬂexibility. This additional

parameter is used for two broad purposes; to select a speciﬁc item (to enable or trigger a group), or

to specify a value within a range (such as a lighting level). This additional parameter is referred to as a

Level or Selector (depending on the application it is associated with). It is a value between 000 (0%)

and 255 (100%).

NOTE C-Bus Toolkit sometimes refers to a Level or Selector as a Value or Action

Selector.

Level

A Level is most often used in lighting applications to dim lights to various levels. Lights attached to

relay output units are switched between a Level of 000 (Off) and 255 (On).

Selector

A Selector is used in a trigger control application to trigger a speciﬁc scene or action. It is also used in

an enable control application to select a particular Schedule.

A Selector must be set and not ramped to, otherwise it will have no effect. The ramp rate must be set

to zero (an instantaneous change).

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Clipsal C-Bus Especificações Página 43