ABB i-bus
®
KNX
Commissioning
© 2008 ABB STOTZ-KONTAKT GmbH
56
What is the minimum signal time?
In contrast to the debounce time, a telegram is only sent after the
minimum signal duration has elapsed.
The individual functions are:
If an edge is detected on the input, the minimum signal duration will
commence. No telegram is sent on the bus at this time. The signal on
the input is observed within the minimum signal duration. If a further
edge appears at the input during the minimum signal duration, it will
be interpreted as a new operation and the minimum signal duration
restarts.
If no further edges occur after begin of the minimum signal duration,
a telegram is sent on the bus after the minimum signal duration has
timed out.
Example: Minimum signal time of the input signal for a detected
edge:
In only two cases, no further edge changes occur within the minimum
signal duration T
M
after a change of edge. For this reason only both of
these are detected as valid.
Scan input after download,
bus reset and bus voltage recovery
Options: no
yes
•
yes:
The object value is scanned after a download, bus reset and bus
voltage recovery.
•
no:
The object value is not scanned after a download, bus reset and bus
voltage recovery.
With option
yes
the following additional parameters appear in the parameter:
T
M
T
M
Input signal
Detected pulse edge
