ABB i-bus KNX ABA/S 1.2.1, Product Manual

Page: 60 / 116

ABB i-bus
®
KNX
Parameters
60 2CDC509086D0201 | ABA/S 1.2.1
Function
If Select is 1, input I
1
is sent to the output. If Select is 0, input I
0
is sent to the output.
Values received on unselected inputs are stored until the input is selected.
Whenever a telegram is received the output starts a recalculation independently if the value has changed.
Use Case
This element can also be used as a send trigger.
In the example below, the result of the MIN/MAX element is always triggered for sending when the
"Update" input receives a telegram. The
Send trigger parameter in 1-MUX must be selected.
Fig. 12: Use case, simple multiplexer element
Other
If an unlinked input is selected, the output value remains unchanged.