18
Parameter setting
Sensor KNX AQS-UP basic
• from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.
Controller target value
The target values can be set directly in the application program using parameters, or
be defined via the bus using a communications object.
Target value setting using parameter:
Set the target value directly.
Setting a target value via communications object:
Enter how the target value will be received from the bus in advance. Basically, a new
value can be received, or simply a command to increase or decrease.
During initial commissioning, a target value must be provided which will be valid until
the 1st communication of a new target value. For units which have already been taken
into service, the last communicated target value can be used. Basically, an air humidity
range is given in which the target value can be changed (object value limit).
A set target value will be retained until a new value or a change is transferred. The cur-
rent value is saved in EEPROM, so that this is retained in the event of a power supply
failure and will be available once the power supply is restored.
Send status object(s)
• 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
Send cycle
(
is only sent if "periodically" is selected)
5 s • ... • 5 min • … • 2 h
Target value setpoint using
Parameter
• Communications object
Target value in ppm
400…5000; 800
Threshold value setpoint using
Parameter •
Communications object
The last communicated value should be
retained
• never
• after restoration of power
• after restoration of power and
programming
Start target value in ppm
valid till 1st communication
(not upon saving the target value after pro-
gramming)
400… 5000; 800
Object value limit (min) in 0.1°C
400…5000; 400
Object value limit (max) in 0.1°C
400…5000; 1500
Type of threshold change
Absolute value • Increase/decrease
Step size in ppm
(upon increase/decrease change)
1 • 2 • 5 • ... • 20 • ... • 100 • 200
