ABB i-bus
®
KNX
Planning and application
© 2008 ABB STOTZ-KONTAKT GmbH
216
Note
If a telegram is received via the communication object
Switch
, this is
connected to both logical objects if they are activated. The result of this
action serves as the input signal for the function time. If this is not blocked,
a corresponding switch signal is generated, e.g. delay or flashing.
Before the switch command of the relay is reached, the forced operation
is checked and executed as a priority if necessary. Subsequently,
the switching action is only dependent on the state of the bus voltage.
The relay is switched if a switching action allows it.
4.2.2
Function time
The function
Time
can be enabled (value 0) and disabled (value 1) via the
bus (1 bit communication object
Disable function time
). The output operates
without a delay as long as the function
Time
is disabled.
Different functions can be realised using the function time:
•
Staircase
lighting
•
switching ON and OFF delay
•
Flashing
You can switch for example between functions, e.g. staircase lighting
function (night time operation) and normal ON/OFF switch function
(daytime operation).