ABB i-bus EIB Product Manual page 20

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ABB i-bus EIB / KNX
© 2004 ABB STOTZ-KONTAKT GmbH
Project design and programming
Sending after bus voltage recovery
It can be set with this parameter whether the object "Status switch" is sent
after bus voltage recovery.
This parameter is visible if a "Status response of switching state" is carried
out. It defines whether the status feedback "Status switch" is updated on the
bus after bus voltage recovery. The object is then only sent if the status of
the relay is unambiguous. This cannot be ensured e.g. after a failure of the
supply voltage. The update is carried out in connection with the send delay.
Status response of brightness value
This parameter enables the object "Status brightness value", which
represents the current brightness value on the bus. The object value is sent
after a change in the brightness value.
Sending after bus voltage recovery
It can be set with this parameter whether the object "Status brightness value"
is sent after bus voltage recovery.
Reaction on bus voltage failure
In the event of a bus voltage failure, the output can be set to a defined state
with this parameter. A fixed brightness value (0...100%) can be specified.
In the setting "unchanged, internal function is retained", the brightness value
remains unchanged. In this case, the output can continue to be operated,
provided that the operation is not carried out via the bus (e.g. via binary input
modules).
Reaction on bus voltage recovery
When the bus voltage or communication is restored, the output can be set to
a defined state with this parameter.
On bus voltage recovery, the brightness value is set once the initialisation
period has elapsed. In the setting "unchanged", the current brightness value
is retained.
State of relay output on supply voltage failure
The relay position which is triggered by the module when the supply voltage
has failed can be set here.
The supply voltage has failed if both the 115/230 V AC supply and the 12 V
DC auxiliary voltage have failed. In this case, the Room Controller has no
function.
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