Slave - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Planning and Application
4.8

Slave

If the function Slave is activated, the lighting group of the DGN/S strictly adheres to the brightness value,
which is predefined by the communication object Brightness value of slave. Brightness values on the
communication object Brightness value are ignored.
A telegram with the value 0 on the communication object Activate function Slave deactivates function Sla-
ve. A telegram with the value 1 reactivates function Slave. In the non-activated state, the lighting group
again responds to the brightness values, which are sent via the communications object Brightness value.
Dimming, switch, scene or sequence telegrams are also undertaken.
An OFF telegram (receipt of a telegram with the value 0 on the communication object Switch, e.g. by a
presence detector) has the effect that the function Slave switches over to standby. During standby mode,
the lighting group responds to dimming, scene and sequence telegrams. Furthermore, in standby mode
the brightness values, which the DGN/S receives for the communication object Brightness value, are car-
ried out. Brightness values that are received via the communication object Brightness value of slave for the
lightning group are ignored by the DGN/S. Standby mode is exited if the DGNS receives an ON telegram
for the lighting group (receipt of a telegram with the value 1 on the communication object Switch, e.g. by a
presence detector) or a telegram with the value 1 on the communication object Activate function Slave.
The lighting group is again in slave mode and only responds to the communication object Brightness value
of slave.
The function Slave is also put into standby if in
switch, dimming, brightness value setting telegram, sequence or sequence recall is parameterized with the
option Mode deactivate. The function Slave is in standby operation. The lighting group responds again to
the communication object Brightness value of slave if a telegram with the value 1 is received on the com-
munication object Switch or via the communication object Activate function Slave.
The parameterization no reaction has the effect that no dimming, switch and brightness setting telegram
can be executed. In addition, a sequence or scene recall and storing of a scene has no effect.
The parameterized minimum and maximum dimming values also apply in function Slave in the
window - Gx
ized minimum or maximum brightness value. If the master sends the brightness value 0, the lighting is
switched off.
The reaction of the function Slave after KNX voltage recovery can be parameterized: The mode (ac-
tive/inactive) can be set in
group after KNX voltage recovery can be adjusted in
active is parameterized, the parameterized brightness value is initially set after KNX voltage recovery.
Subsequently, the next brightness value received via communication object Brightness value of Slave is
then set. In the following table, the response to received telegrams with the parameterized function Slave
is shown.
Slave, page 70. The undershoot and overshoot of these values are set using the parameter-
Parameter window - Gx
Parameter window - Gx Slave, page 70, the reaction to a
Slave, page 70, and the brightness value of the lighting
Parameter window – Gx
DGN/S 1.16.1 | 2CDC 507 114 D0201 139
Parameter
Fault, page 64. If the mode