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ABB i-bus
KNX
Planning and application
Note
If a telegram is received via the Switch group object, this is connected to both Logic objects if they are
activated. The result of this action serves as the input signal for the Time function. If this is not disabled,
a corresponding switch signal is generated, e.g. delay or flashing. Before the Switch telegram reaches
the relay, the forced operation is checked and executed as a priority if applicable. Subsequently, the
switching action is only dependent on the state of the bus voltage. If this permits a switching action, the
relay is switched.
4.2.2
Time function
The Time function can be enabled (value 0) and disabled (value 1) via the bus (1-bit group object
Disable function Time). The output operates without a delay as long as the Time function is disabled.
Various functions can be undertaken using the Time function:
•
Staircase lighting
•
Switching ON/OFF delay
•
Flashing
You can switch, for example, between functions, e.g. function Staircase lighting (night time operation) and
normal ON/OFF switch function (daytime operation).
JRA/S 6.230.3.1 | 2CDC506083D0201 127
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