ABB i-bus
KNX
Commissioning
98 2CDC 505 056 D0208 | SA/S
3.2.3.1.6
Parameter window A: Threshold
All settings for the
Threshold
function are undertaken in this parameter window.
This parameter window is visible if the
Enable function threshold
parameter
has been enabled in
Parameter window A: Function
, p.
71.
The threshold function facilitates the evaluation of a 1 or 2 byte communication object,
Threshold input
.
A switching action can be triggered as soon as the value of the communication object undershoots or
overshoots a threshold value. Two independent threshold values are available. Threshold 1 can be
modified via the bus.
For further information see:
Threshold function
, p. 159
When the threshold function is active, the Switch Actuator continues to receive switching telegrams.
In this way, the contact position determined by the threshold function can be changed,
see
Function diagram
, p. 147. The threshold function generates a switching telegram as soon as a new
threshold telegram is received and a new switching condition exists simultaneously due to undershoot or
overshoot of the switching criterion.
Data type of object "Threshold input"
Options:
1 byte [0…255]
2 byte [0...65,535]
The data type for the threshold input received via the communication object
Threshold input
can be
determined here.
You can choose between a 1 byte integer value or a 2 byte counter value.
Содержание i-bus SA/S 12.10.2.1
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