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Parameter settings
Interface KNX B8-TH
• Version: 24.08.2016 • Technical changes and errors excepted.
The
minimum and maximum readings
can be saved and sent to the bus. Using the
"Reset reading min/max." objects the values can be reset to the current readings.
The values are not retained after a reset.
5.7.
Humidity threshold values
The settings for the "humidity threshold values" and other air humidity settings are
only shown if the circuit board sensor input has been set to "temperature and humidity
sensor" in the "General settings".
The
Interface KNX B8-TH
provides two threshold values for the humidity measure-
ment of the sensors connected to the device.
5.7.1. Threshold value 1/2
Threshold value
Set, in which cases
threshold values and delay times
received via objects are to be
retained. The parameter is only taken into consideration if the setting via object is ac-
tivated below. Please note that the setting "After power supply restoration and pro-
gramming" should not be used for the initial start-up, as the factory settings are always
used until the first communication (setting via objects is ignored).
Set the threshold value directly in the application program using parameters, or define
them via the bus using a communication object.
Threshold value setting using parameter:
Set the threshold values and hysteresis directly.
Threshold value setting using a communication object:
Define, how the threshold value is to be received from the bus. Basically, a new value
can be received, or simply a command to increase or decrease.
During initial commissioning, a threshold value must be defined, which will be valid
until the first communication with a new threshold value. For units which have already
Use minimum and maximum value
No • Yes
Use threshold value 1/2
No • Yes
Maintain the
threshold values and delays received via
communication objects
• never
• after power supply restoration
• after power supply restoration and
programming
Threshold value setting using
Parameter
• Communication objects
Threshold value in 0.1% RH
1 … 1000; 650