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Parameter settings
Interface KNX B8-TH
• Version: 24.08.2016 • Technical changes and errors excepted.
been taken into service, the last communicated threshold value can be used. Basically,
a humidity range is specified in which the threshold value can be changed (object value
limit).
A set threshold value will be retained until a new value or a change is transferred. The
current value is saved, so that it is retained in the event of a power supply failure and
will be available once the power supply is restored.
Set the
hysteresis
independent of the type of threshold value specification.
Switching output
Set the behaviour of the switching output when a threshold value is exceeded/under-
cut. The output switching delay can be set using objects or directly as a parameter.
Threshold value setting using
Parameter •
Communication objects
Starting threshold value in 0.1% RH
valid until first communication
1 … 1000; 650
Object value limit (min.)
in 0.1%RH
1…1000
Object value limit (max.)
in 0.1%RH
1…1000
Type of threshold value change
Absolute value • Increase/decrease
Increment
(upon increase/decrease change)
0.1% RH • ... • 2.0% RH • ... • 20.0% RH
Hysteresis setting
in % • absolute
Hysteresis in 0.1% RH
0...1000; 100
Hysteresis in %
(relative to the threshold value)
0 … 50; 20
When the following conditions apply,
the output is
(TV = Threshold value)
• TV above = 1 | TV - hyst. below = 0
• TV above = 0 | TV - hyst. below = 1
• TV below = 1 |TV + hyst. above = 0
• TV below = 0 |TV + hyst. above = 1
Delays can be set via objects
(in seconds)
No • Yes
Switching delay from 0 to 1
(If delay can be set via objects:
valid until 1st communication)
None • 1 s • 2 s • 5 s • 10 s • … • 2 h
Switching delay from 1 to 0
(If delay can be set via objects:
valid until 1st communication)
None • 1 s • 2 s • 5 s • 10 s • … • 2 h
Switching output sends
• on change
• on change to 1
• on change to 0
• on change and periodically
• on change to 1 and periodically
• on change to 0 and periodically
Cycle
(is only sent if periodically is selected)
5 s • 10 s • 30 s… • 2 h