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Parameter setting
Temperature evaluation unit KNX T6-UN-B4
• Version: 17/12/2019 • Technical changes and errors excepted.
The unit can calculate a
mixed value
from its own reading and an external value. Set
the mixed value calculation if desired.
Note:
If an external portion is used, all of the following settings are related to the over-
all reading!
5.4.
Threshold value
Activate the threshold values that you want to use here. The
Temperature evalua-
tion unit KNX T6-UN-B4
provides six threshold values for temperature.
5.4.1. Threshold values 1...6
Threshold value
Set the threshold values directly in the application program using parameters, or de-
fine them via the bus using a communications object.
Threshold value setpoint using parameter:
Set the threshold values and hysteresis directly.
Threshold value setpoint using a communications object:
Beforehand, enter how the threshold value will 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 un-
til the 1st communication of a new threshold value. For units which have already been
taken into service, the last communicated threshold value can be used. Basically, a
temperature range is given 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 in EEPROM, so that this is retained in the event of a power sup-
ply failure and will be available once the power supply is restored.
Use external measured value
Yes • No
Ext. Reading proportion of the total reading
5% • 10% • ... • 50% • ... • 100%
Send behaviour
• periodically
• on change
• on change and periodically
On change of
(if sent on change)
0.1°C • ... • 0.5°C • ... • 5.0°C
Send cycle
(if sent periodically)
5 s • ... • 2 h
Use threshold values 1/2/3/4/5/6
Yes • No
Threshold value setpoint using
Parameter
• Communications objects
Threshold value in 0.1°C
-300 … 800; 200
Hysteresis of the threshold value in %
0 … 50; 20
Содержание 70222
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