ABB i-bus
®
KNX
Commissioning
© 2008 ABB STOTZ-KONTAKT GmbH
34
3.2.2.1
Parameter window
a: Switch Sensor
In this parameter window all settings are undertaken for parameter window
a: Switch Sensor
.
The explanations also apply for the
Inputs b-f
.
This parameter window is visible if in Parameter window
Switch Sensor/Fault monitoring input
in parameter Input
a (
binary input, contact scanning
) has been selected.
Enable communication object
"Disable" 1 bit
Options: no
yes
•
yes:
The 1 bit
Block
communication object is enabled.
This can be used to block the input.
Note
If the input is disabled and the option
Cyclic sending
is set, the last
state is still sent regardless of the block. The option block still blocks
the physical input, sending continues internally.
Debounce time
Options: 10/20/30/50/70/100/150 ms
Debouncing prevents unwanted multiple operations of the input, e.g. due to
bouncing of the contact.
What is the debounce time?
If an edge is detected at an input, the input will react immediately to
this edge, e.g. by sending a telegram. At the same time, the duration
of the debounce time T
D
starts. The signal on the input is not
evaluated within the debounce time duration.