KNX AQS-UP basic Installation And Adjustment Manual

Installation and Adjustment

KNX AQS-UP basic

Air Quality Sensor

Article numbers 70224 (white), 70225 (aluminium), 70226 (anthracite), 70227 (stainless steel)

EN

1 Contents

Elsner Elektronik GmbH • Sohlengrund 16 • 75395 Ostelsheim • Germany

Sensor KNX AQS-UP basic • from software version 3.1, ETS programme version 3.1

Status: 24.03.2016 • Subject to technical changes. Errors excepted.

1. Description ........................................................................................... 3

1.0.1. Scope of delivery .......................................................................................... 3

1.1. Technical specifications ........................................................................................... 4

1.1.1. Accuracy of the measurement ..................................................................... 4

2. Installation and commissioning ........................................................... 5

2.1. Installation notes ...................................................................................................... 5

2.2. Installation position .................................................................................................. 5

2.3. Composition ............................................................................................................. 6

2.3.1. Housing .......................................................................................................... 6

2.3.2. Rear view of sensor board with connections ............................................. 7

2.4. Assembly of the sensor ........................................................................................... 7

2.5. Notes on mounting and commissioning ................................................................ 7

3. Transfer protocol ................................................................................. 9

3.1. List of all communications objects ......................................................................... 9

4. Parameter setting .............................................................................. 13

4.1. Behaviour on power failure/ restoration of power .............................................. 13

4.2. General settings ..................................................................................................... 14

4.3. CO2 measured value .............................................................................................. 14

4.4. CO2 threshold values ............................................................................................. 15

4.4.1. Threshold value 1, 2, 3, 4: CO2 .................................................................. 15

Threshold value .......................................................................................... 15

Switching output ......................................................................................... 16

Block ............................................................................................................. 16

4.5. CO2 PI control ......................................................................................................... 17

General control ........................................................................................... 17

Controller target value ................................................................................ 18

Ventilation control ...................................................................................... 19

4.6. Variable comparator .............................................................................................. 19

4.6.1. Control variable comparator 1/2 ................................................................ 19

4.7. Logic ........................................................................................................................ 20

AND logic ..................................................................................................... 20

OR logic ....................................................................................................... 20

4.7.1. AND and/or OR logic 1/2/3/4/5/6/7/8 .......................................................... 21

Block ............................................................................................................. 21

4.7.2. AND logic connection inputs ..................................................................... 22

4.7.3. Connection inputs of the OR logic ............................................................. 23

2 Clarification of signs

This manual is amended periodically and will be brought into line with new software
releases. The change status (software version and date) can be found in the contents footer.
If you have a device with a later software version, please check
www.elsner-elektronik.de in the menu area "Service" to find out whether a more up-to­date version of the manual is available.

Clarification of signs used in this manual

Installation, inspection, commissioning and troubleshooting of the device
must only be carried out by a competent electrician.

Safety advice.

Safety advice for working on electrical connections, components,
etc.

DANGER!

... indicates an immediately hazardous situation which will lead to
death or severe injuries if it is not avoided.

WARNING!

... indicates a potentially hazardous situation which may lead to
death or severe injuries if it is not avoided.

CAUTION!

... indicates a potentially hazardous situation which may lead to
trivial or minor injuries if it is not avoided.

ATTENTION!

... indicates a situation which may lead to damage to property if it is
not avoided.

ETS In the ETS tables, the parameter default settings are marked by

underlining.

3 Description

Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.

1. Description

The Air Quality Sensor KNX AQS-UP basic measures the CO2 concentration in the
room. The sensor can receive an external CO

2

value via the bus and process it with the

own data to an overall value (mixed value, e.g. room average).

The KNX AQS-UP basic provides four switching outputs with adjustable threshold
values. The switching outputs and further communication objects can be linked by
AND and OR logic gates. Additionally, an integrated actuating variable comparator can
compare and output values that are received via communication objects.
An integrated PI controllers allows for control of ventilation depending on CO

2

concen-

tration.

The housing is completed with a frame of the switching series installed in the building
and thus merges with the interior.

Functions:

• Measurement of CO

2

concentration of the air

• Mixed value from own measured value and external value (proportions can
be set in percentage)

• PI controller for ventilation depending on CO

2

concentration:
dehumidification/humidification (one step) or dehumidification (one or two
step)

• 4 switching outputs with adjustable threshold values (Threshold values can
be set by parameter or via communication objects)

• 8 AND and 8 OR logic gates with each 4 inputs. Every switching incident as
well as 8 logic inputs (in the form of communication objects) may be used as
inputs for the logic gates. The output of each gate may optionally be configured
as 1 bit or 2 x 8 bits

• 2 actuating variable comparators for output of minimum, maximum or
average values. Each with 5 inputs (for values received via communication
objects)

Configuration is made using the KNX software ETS. The product file can be down­loaded from the Elsner Elektronik website on www.elsner-elektronik.de in the “Ser­vice” menu.

1.0.1. Scope of delivery

• Housing with display, buttons and sensor board

•CO

2

sensor unit

• Base plate

You will need in addition (not supplied):

• Socket Ø 60 mm, 42 mm deep

• Frame (for element 55 x 55 mm), suitable for the switching programme used in
the building

4 Description

Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.

1.1. Technical specifications

* Mind the notes on Accuracy of the measurement, page 4

The product conforms with the provisions of EU guidelines.

1.1.1. Accuracy of the measurement

Measurement variations from sources of interference (see chapter Installation posi­tion) must be corrected in the ETS in order to ensure the specified accuracy of the sen-

sor (offset). To ensure a correct CO

2

measurement, the device must be installed in a

windproof socket.

The indicated accuracy of the CO

2

measurement will be achieved after a run-in pe-

riod of 24 hours (without interruption of the bus voltage) if the sensor has been in con­tact with fresh air (350…450 ppm) at least once in this period.
After this, the CO

2

sensor will recalibrate every two weeks by defining the lowest meas­ured value captured during that period (without interruption of the bus voltage) as a
reference for fresh air.

Housing Plastic material (partly lacquered)
Colours • White glossy (similar to RAL 9016 Traffic White)

• Aluminium matt

• Anthracite matt

• Stainless steel

• Special colours on request

Mounting

In-wall (in socket Ø 60 mm, 42 mm deep)

Protection category IP 20
Dimensions Housing approx. 55 x 55 (W x H, mm),

mounting depth approx. 15 mm,

base plate approx. 71 x 71 (W x H, mm)
Total weight approx. 72 g
Ambient temperature Operation -10…+50°C, storage -20…+60°C
Ambient air humidity max. 95% R. H., avoid bedewing
Operating voltage KNX bus voltage
Bus current max. 10 mA
Data output KNX +/- bus terminal plug
BCU type Own micro controller
PEI type 0
Group addresses max. 254
Allocations max. 254
Communication objects 133
CO2 measurement range 0...2000 ppm

CO2 resolution 1 ppm

CO2 accuracy* ± 50 ppm ± 3% of the measured value

5 Installation and commissioning

Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.

The guarantee the accuracy on a sustained basis, the sensor should be provided with
fresh air at least once in two weeks. This occurs normally during room ventilation.

2. Installation and commissioning

2.1. Installation notes

Installation, testing, operational start-up and troubleshooting should
only be performed by an electrician.

CAUTION!
Live voltage!

There are unprotected live components inside the device.

• National legal regulations are to be followed.

• Ensure that all lines to be assembled are free of voltage and take
precautions against accidental switching on.

• Do not use the device if it is damaged.

• Take the device or system out of service and secure it against
unintentional use, if it can be assumed, that risk-free operation is no
longer guaranteed.

The device is only to be used for its intended purpose. Any improper modification or
failure to follow the operating instructions voids any and all warranty and guarantee
claims.

After unpacking the device, check it immediately for possible mechanical damage. If it
has been damaged in transport, inform the supplier immediately.

The device may only be used as a fixed-site installation; that means only when assem­bled and after conclusion of all installation and operational start-up tasks and only in
the surroundings designated for it.

Elsner Elektronik is not liable for any changes in norms and standards which may occur
after publication of these operating instructions.

2.2. Installation position

The Air Quality Sensor KNX AQS-UP basic will be installed concealed within a so­cket (Ø 60 mm, 42 mm deep).

May be installed and operated in dry interior rooms only.
Avoid condensation.

For monitoring of the CO

2

content of the room air choose an installation position in

height of head (standing or sitting, according to utilization of room). The CO

2

concen-

tration in indoor rooms is highest near the floor and decreases towards the ceiling.

6 Installation and commissioning

Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.

When selecting an installation location, please ensure that the measurement results
are affected as little as possible by external influences. Possible sources of interference
include:

• Drafts from windows and doors

• Draft from ducts which lead from other rooms or from the outside to the
junction box in which the sensor is mounted

Measurement variations from such sources of interference must be corrected in the
ETS in order to ensure the specified accuracy of the sensor (offset).

To ensure a correct CO

2

measurement, the device must be installed in a windproof

socket.

2.3. Composition

2.3.1. Housing

Fig. 1
1 Base plate
2Notches
3 Air circulation holes
4 Programming LED (recessed)
5 Programming button (reces-

sed) for teaching instrument

6 Air circulation holes

(BOTTOM)

3

2

5

4

6

1

7 Installation and commissioning

Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.

2.3.2. Rear view of sensor board with connections

2.4. Assembly of the sensor

First of all fit the windproof socket with connection. Also seal inlet pipes to avoid infil­tration.

Screw the base plate onto the socket and position the frame of the switching pro­gramme. Connect the CO

2

sensor unit and the bus line +/- (black-red plug) to the ter-

minals provided on the board.

Pin the sensor with the notches on to the metal frame, so that sensor and frame are
fixed.

2.5. Notes on mounting and commissioning

Never expose the device to water (e.g. rain) or dust. This can damage the electronics.
You must not exceed a relative humidity of 95%. Avoid condensation.

After the bus voltage has been applied, the device will enter an initialisation phase last­ing a few seconds. During this phase no information can be received or sent via the
bus.

Fig. 2
1 KNX terminal BUS +/­2Notches
3Slot for CO

2

sensor unit

4 Plug of CO

2

sensor unit

5CO

2

sensor unit

Length of cable approx. 110 mm
a Hole centre distance approx. 43 mm
b Diameter of diaphragm

approx. 18 mm

2

1

34

5

a

b

Place the CO2 sensor unit in the socket. The side with the sensor
membrane must face to front.

Fig. 3

8 Installation and commissioning

Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.

9 Transfer protocol

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

3. Transfer protocol

Units:

CO

2

content in ppm

Variables in %

3.1. List of all communications objects

Abbreviation flags:

C Communication
R Read
WWrite
T Transfer
UUpdate

No. Name Function DPT Flags

0 Software version readable 217,001 C R T

2 CO2 sensor malfunction Output 1,001 C R T

98 Outside CO2 reading Input 9,008 C W
99 Inside CO2 Internal reading Output 9,008 C R T
100 Total CO2 reading Output 9,008 C R T
101 CO2 maximum value request Input 1,017 C W
102 Maximum CO2 reading Output 9,008 C R T
103 Reset CO2 maximum value Input 1,017 C W

104 CO2 threshold value 1: Absolute

value

Input/Output 9,008 C R W T

U
105 CO2 threshold value 1: (1:+ | 0:-) Input 1,002 C W
106 CO2 threshold value 1: Switching

delay from 0 to 1

Input 7,005 C W

107 CO2 threshold value 1: Switching

delay from 1 to 0

Input 7,005 C W

108 CO2 threshold value 1: Switching out-

put

Output 1,001 C R T

109 CO2 threshold value 1: Switching out-

put block

Input 1,002 C W

110 CO2 threshold value 2: Absolute

value

Input/Output 9,008 C R W T

U
111 CO2 threshold value 2: (1:+ | 0:-) Input 1,002 C W
112 CO2 threshold value 2: Switching

delay from 0 to 1

Input 7,005 C W

10 Transfer protocol

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

113 CO2 threshold value 2: Switching

delay from 1 to 0

Input 7,005 C W

114 CO2 threshold value 2: Switching out-

put

Output 1,001 C R T

115 CO2 threshold value 2: Switching out-

put block

Input 1,002 C W

116 CO2 threshold value 3: Absolute

value

Input/Output 9,008 C R W T

U
117 CO2 threshold value 3: (1:+ | 0:-) Input 1,002 C W
118 CO2 threshold value 3: Switching

delay from 0 to 1

Input 7,005 C W

119 CO2 threshold value 3: Switching

delay from 1 to 0

Input 7,005 C W

120 CO2 threshold value 3: Switching out-

put

Output 1,001 C R T

121 CO2 threshold value 3: Switching out-

put block

Input 1,002 C W

122 CO2 threshold value 4: Absolute

value

Input/Output 9,008 C R W T

U
123 CO2 threshold value 4: (1:+ | 0:-) Input 1,002 C W
124 CO2 threshold value 4: Switching

delay from 0 to 1

Input 7,005 C W

125 CO2 threshold value 4: Switching

delay from 1 to 0

Input 7,005 C W

126 CO2 threshold value 4: Switching out-

put

Output 1,001 C R T

127 CO2 threshold value 4: Switching out-

put block

Input 1,002 C W

128 CO2 controller: Blocking object Input 1,002 C W
129 CO2 controller: Target value Input/Output 9,008 C R W T
130 CO2 controller: Target value (1:+ | 0:-) Input 1,002 C W
131 CO2 controller: Control variable venti-

lation (stage 1)

Output 5,001 C R T

132 CO2 controller: Control variable venti-

lation (stage 2)

Output 5,001 C R T

133 CO2 controller: Ventilation 1 status

(1=ON | 0=OFF)

Output 1,001 C R T

134 CO2 controller: Ventilation 2 status

(1=ON | 0=OFF)

Output 1,001 C R T

135 Comparator 1 actuating variable:

Input 1

Input 5,010 C W

No. Name Function DPT Flags

11 Transfer protocol

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

136 Comparator 1 actuating variable:

Input 2

Input 5,010 C W

137 Comparator 1 actuating variable:

Input 3

Input 5,010 C W

138 Comparator 1 actuating variable:

Input 4

Input 5,010 C W

139 Comparator 1 actuating variable:

Input 5

Input 5,010 C W

140 Comparator 1 actuating variable: Out-

put

Output 1,001 C R T

141 Comparator 1 actuating variable:

Block

Input 1,002 C W

142 Comparator 2 actuating variable:

Input 1

Input 5,010 C W

143 Comparator 2 actuating variable:

Input 2

Input 5,010 C W

144 Comparator 2 actuating variable:

Input 3

Input 5,010 C W

145 Comparator 2 actuating variable:

Input 4

Input 5,010 C W

146 Comparator 2 actuating variable:

Input 5

Input 5,010 C W

147 Comparator 2 actuating variable: Out-

put

Output 1,001 C R T

148 Comparator 2 actuating variable:

Block

Input 1,002 C W

149 AND logic 1: 1-bit switching output Output 1,002 C R T
150 AND logic 1: 8-bit output A Output 5,010 C R T
151 AND logic 1: 8-bit output B Output 5,010 C R T
152 AND logic 1: Block Input 1,002 C W
153 AND logic 2: 1-bit switching output Output 1,002 C R T
154 AND logic 2: 8-bit output A Output 5,010 C R T
155 AND logic 2: 8-bit output B Output 5,010 C R T
156 AND logic 2: Block Input 1,002 C W
157 AND logic 3: 1-bit switching output Output 1,002 C R T
158 AND logic 3: 8-bit output A Output 5,010 C R T
159 AND logic 3: 8-bit output B Output 5,010 C R T
160 AND logic 3: Block Input 1,002 C W
161 AND logic 4: 1-bit switching output Output 1,002 C R T
162 AND logic 4: 8-bit output A Output 5,010 C R T
163 AND logic 4: 8-bit output B Output 5,010 C R T
164 AND logic 4: Block Input 1,002 C W

No. Name Function DPT Flags

12 Transfer protocol

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

165 AND logic 5: 1-bit switching output Output 1,002 C R T
166 AND logic 5: 8-bit output A Output 5,010 C R T
167 AND logic 5: 8-bit output B Output 5,010 C R T
168 AND logic 5: Block Input 1,002 C W
169 AND logic 6: 1-bit switching output Output 1,002 C R T
170 AND logic 6: 8-bit output A Output 5,010 C R T
171 AND logic 6: 8-bit output B Output 5,010 C R T
172 AND logic 6: Block Input 1,002 C W
173 AND logic 7: 1-bit switching output Output 1,002 C R T
174 AND logic 7: 8-bit output A Output 5,010 C R T
175 AND logic 7: 8-bit output B Output 5,010 C R T
176 AND logic 7: Block Input 1,002 C W
177 AND logic 8: 1-bit switching output Output 1,002 C R T
178 AND logic 8: 8-bit output A Output 5,010 C R T
179 AND logic 8: 8-bit output B Output 5,010 C R T
180 AND logic 8: Block Input 1,002 C W
181 OR logic 1: 1-bit switching output Output 1,002 C R T
182 OR logic 1: 8-bit output A Output 5,010 C R T
183 OR logic 1: 8-bit output B Output 5,010 C R T
184 OR logic 1: Block Input 1,002 C W
185 OR logic 2: 1-bit switching output Output 1,002 C R T
186 OR logic 2: 8-bit output A Output 5,010 C R T
187 OR logic 2: 8-bit output B Output 5,010 C R T
188 OR logic 2: Block Input 1,002 C W
189 OR logic 3: 1-bit switching output Output 1,002 C R T
190 OR logic 3: 8-bit output A Output 5,010 C R T
191 OR logic 3: 8-bit output B Output 5,010 C R T
192 OR logic 3: Block Input 1,002 C W
193 OR logic 4: 1-bit switching output Output 1,002 C R T
194 OR logic 4: 8-bit output A Output 5,010 C R T
195 OR logic 4: 8-bit output B Output 5,010 C R T
196 OR logic 4: Block Input 1,002 C W
197 OR logic 5: 1-bit switching output Output 1,002 C R T
198 OR logic 5: 8-bit output A Output 5,010 C R T
199 OR logic 5: 8-bit output B Output 5,010 C R T
200 OR logic 5: Block Input 1,002 C W
201 OR logic 6: 1-bit switching output Output 1,002 C R T
202 OR logic 6: 8-bit output A Output 5,010 C R T
203 OR logic 6: 8-bit output B Output 5,010 C R T
204 OR logic 6: Block Input 1,002 C W

No. Name Function DPT Flags

13 Parameter setting

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

4. Parameter setting

4.1. Behaviour on power failure/ restoration of
power

Behaviour following a failure of the bus power supply:

The device sends nothing.

Behaviour on bus restoration of power and following programming or reset:

The device sends all outputs according to their send behaviour set in the parameters
with the delays established in the "General settings" parameter block. The "Software
version" communications object is sent once after 5 seconds.

205 OR logic 7: 1-bit switching output Output 1,002 C R T
206 OR logic 7: 8-bit output A Output 5,010 C R T
207 OR logic 7: 8-bit output B Output 5,010 C R T
208 OR logic 7: Block Input 1,002 C W
209 OR logic 8: 1-bit switching output Output 1,002 C R T
210 OR logic 8: 8-bit output A Output 5,010 C R T
211 OR logic 8: 8-bit output B Output 5,010 C R T
212 OR logic 8: Block Input 1,002 C W

213 Logic input 1 Input 1,002 C W
214 Logic input 2 Input 1,002 C W
215 Logic input 3 Input 1,002 C W
216 Logic input 4 Input 1,002 C W
217 Logic input 5 Input 1,002 C W
218 Logic input 6 Input 1,002 C W
219 Logic input 7 Input 1,002 C W
220 Logic input 8 Input 1,002 C W
221 Logic input 9 Input 1,002 C W
222 Logic input 10 Input 1,002 C W
223 Logic input 11 Input 1,002 C W
224 Logic input 12 Input 1,002 C W
225 Logic input 13 Input 1,002 C W
226 Logic input 14 Input 1,002 C W
227 Logic input 15 Input 1,002 C W
228 Logic input 16 Input 1,002 C W

No. Name Function DPT Flags

14 Parameter setting

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

4.2. General settings

Set the basic data transfer characteristics and select whether or not malfunction ob­jects should be sent.

4.3. CO2 measured value

Use Offsets to adjust the readings to be sent.

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 (threshold values, etc.)
are related to the overall reading!

The maximum readings can be saved and sent to the bus. Use the "Reset CO

2

max.

value" object to reset the value to the current reading.

Note: The values are not retained after a reset.

Send delay after power-up and programming for:
Measured values 5 s • ... • 2 h
Threshold values and switching outputs 5 s • ... • 2 h
Controller objects 5 s • 10 s • ... • 2 h
Logic outputs 5 s • 10 s • ... • 2 h
Maximum telegram quota • 1 message per second

• ...

• 5 messages per second

• ...

• 20 messages per second

Use CO2 malfunction object Yes • No

Offset in ppm -100...100; 0

Use external reading Yes • No
Ext. Reading proportion of the total reading 5% • 10% • ... • 50% • ... • 100%
Send internal and total reading • never

• periodically

• On change

• on change and periodically

From change of

(if sent on change)

2% • 5% • 10% • 25% • 50% (relative to the
last reading)

Send cycle

(if sent periodically)

5 s • ... • 2 h

Use maximum value Yes • No

15 Parameter setting

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

4.4. CO2 threshold values

Activate the threshold values that you want to use here. The Sensor KNX AQS-UP
basic provides three four threshold values for carbon dioxide.

Table of CO2 values:

1000 ppm corresponds to 0.1% CO2 content.

4.4.1. Threshold value 1, 2, 3, 4: CO2

Threshold value

Set the threshold values directly in the application program using parameters, or de­fine 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 un­til 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 sup­ply failure and will be available once the power supply is restored.

Use threshold value 1/2/3/4 Yes • No

300 ... 500 ppm Fresh air
1500 ... 3000 ppm "Stale" air
5000 ppm Maximum allowable concentration

Threshold value setpoint using Parameter • Communications object
Threshold value in ppm 0...5000; 1200
Hysteresis of the threshold value in % 0 … 50; 20

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 threshold value in ppm
valid till 1st communication

0...5000; 1200

16 Parameter setting

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

Switching output

Set the behaviour of the switching output when a threshold value is exceeded/under­cut. The output switching delay can be set using objects or directly as a parameter.

Block

The switching output can be blocked using an object. Define specifications here for the
behaviour of the output when blocked.

Object value limit (min) in ppm 0...5000
Object value limit (max) in ppm 0...5000
Type of threshold change Absolute value • Increase/decrease
Step size

(upon increase/decrease change)

1 • 2 • 5 • 10 • 20 • 50 • 100 • 200

Hysteresis of the threshold value in % 0 … 50; 20

When the following conditions apply, the
output is
(LV = Threshold value)

• LV above = 1 |LV - hysteresis below = 0

• LV above = 0 |LV - hysteresis below = 1

• LV below = 1 |LV + hysteresis above = 0

• LV below = 0 |LV + hysteresis above = 1

Delays can be set via objects
(in seconds)

No • Yes

Switching delay from 0 to 1

(when delay is not set using objects)

None • 1 s • 2 s • 5 s • 10 s • … • 2 h

Switching delay from 1 to 0

(when delay is not set using objects)

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

Send cycle

(is only sent if "periodically" is selected)

5 s • 10 s • 30 s… • 2 h

Use switching output block No • Yes
Analysis of the blocking object • At value 1: block | At value 0: release

• At value 0: block | At value 1: release

Blocking object value before 1st communi­cation

0 • 1

Behaviour of the switching output
With blocking • Do not send message

• send 0

• send 1

On release
(with 2 seconds release delay)

[Dependent on the "Switching output
sends" setting]

17 Parameter setting

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

The behaviour of the switching output on release is dependent on the value of the pa­rameter "Switching output sends" (see "Switching output")

4.5. CO2 PI control

If you activate air quality control, you can use the following settings to define control
type, target values, and ventilation.

General control

The Sensor KNX AQS-UP basic can be used to control one or two-stage ventilation.

Configure a block for the ventilation control using the blocking object.

Determine when the current control settings are to be sent to the bus. Periodic trans­mission is safer if a message does not reach a recipient. You may also set up periodic
monitoring using an actuator with this setting.

The status object shows the current status of the output variable (0 = OFF,
>0 = ON) and can for example be used for visualisation.

Switching output sends on change • Do not send message

• Send switching output status

Switching output sends on change to 1 • Do not send message

• If switching output = 1  send 1

Switching output sends on change to 0 • Do not send message

• If switching output = 0  send 0

Switching output sends on change and
periodically

Send switching output status

Switching output sends on change to 1 and
periodically

If switching output = 1 send 1

Switching output sends on change to 0 and
periodically

If switching output = 0 send 0

Use control Yes • No

Type of control • One-stage ventilation

• Two-stage ventilation

Behaviour of the blocking object with value • 1 = Block | 0 = release

• 0 = block | 1 = release

Blocking object value
before 1st communication

0 • 1

Actuating variable comparator • on change

• on change and periodically

Send cycle
(is only sent if "periodically“ is selected)

5 s • ... • 5 min • … • 2 h

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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 cur­rent 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 pro­gramming)

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

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Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

Ventilation control

Depending on the control mode, one and/or two setting sections for the ventilation
stages are displayed.

For two-stage ventilation, the target value difference between the two stages must be
defined, i.e. the target value which, when exceeded, triggers the switch to the 2nd
stage.

Determine the deviation from the target value at which the maximum variable value is
reached, i.e. the point at which maximum output is used.
The reset time shows how quickly the control responds to deviations from the target
value. In case of a short reset time, the control responds with a fast increase of the var­iable. In case of a long reset time, the control responds somewhat less urgently and
needs longer until the necessary variable for the target value deviation is reached.
You should set the time appropriate to the ventilation system at this point (follow the
manufacturer's instructions).

Now determine what should be sent when the control is blocked.
On release, the control variable follows the rule again.

4.6. Variable comparator

The two integrated control variable comparators can output maximum, minimum and
median values.

4.6.1. Control variable comparator 1/2

Determine what the control variable comparator should output, and activate the input
objects to be used. Send behaviour and blocks can also be set.

Target value difference between levels 1
and 2 Stage in ppm

(for stage 2 only)

100...4000; 400

Maximum control variable is reached
at target value/actual difference of (in ppm)

100...4000; 100

Reset time in minutes 1...255; 10

When blocked, the variable shall • not be sent

• send a specific value

Value

(if a value is sent for one 1-bit object)

0 • 1

Value (in %)
((if a value is sent for an 8-bit object))

0...100

Use comparator 1/2 No • Yes

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Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

4.7. Logic

Activate the logic inputs and assign object values up to 1st communication. Then, ac­tivate the required logic outputs.

AND logic

OR logic

Output delivered • Maximum value

• Minimum value

• Average value
Use input 1/2/3/4/5 No • Yes
Output sends • on change of output

• on change of output and periodically

• when receiving an input object

• when receiving an input object and peri-

odically

Send cycle

(is only sent if "periodically" is selected)

5 s • 10 s • 30 s • ... • 5 min • … • 2 h

From change of

(is only sent if "on change" is selected)

1% • 2% • 5% • 10% • 20% • 25%

Analysis of the blocking object • at value 1: block | at value 0: release

• at value 0: block | at value 1: release
Blocking object value

before 1st communication

0 • 1

Behaviour of the switching output
With blocking • do not send message

• Send value
Sent value in % 0 ... 100
on release, output is sent

(with 2 seconds release delay)

• the current value

• the current value after receipt of an object

Use logic inputs No • Yes
Object value prior to 1. communication for:
Logic input 1... 16 0 • 1

Logic 1/2/3/4/5/6/7/8 not active • active

Logic 1/2/3/4/5/6/7/8 not active • active

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Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

4.7.1. AND and/or OR logic 1/2/3/4/5/6/7/8

AND- and OR logic gates provide the same setting options. Assign the inputs to a
switching event and set the send behaviour.

If the logic output sends one 1-bit object:

If the logic output sends two 8-bit objects:

Block

Logic outputs can also be blocked using objects.

1. / 2. / 3. / 4. Input • do not use

• all switching events which are available

to the sensor (see AND logic connection
inputs, page 22)

Logic output sends • one 1-bit object • two 8-bit objects

Logic output sends one 1 bit object
if logic = 1  object value 1 • 0
if logic = 0  object value 0 • 1

Logic output sends two 8 bit objects
Type of objects • Value (0 ... 255)

• Percent (0% ... 100%)

• Angle (0°... 360°)

• Scenario load (0 ... 127)
if logic = 1  object A value Setting dependent on "type of object"
if logic = 0  object A value Setting dependent on "type of object"
if logic = 1  object B value Setting dependent on "type of object"
if logic = 0  object B value Setting dependent on "type of object"

Send behaviour • on change of logic

• on change of logic to 1

• on change of logic to 0

• on change of logic and periodically

• on change of logic to 1 and periodically

• on change of logic to 0 and periodically

• on change of logic + receipt of object

• on change of logic + receipt of object and

periodically

Send cycle

(is only sent if "periodically" is selected)

5 s • 10 s • 30 s • 1 min • … • 2 h

Analysis of the blocking object • at value 1: block | at value 0: release

• at value 0: block | at value 1: release
Blocking object value before 1st communi-

cation

0 • 1

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Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

Behaviour on release of the switching output is dependent on send behaviour

4.7.2. AND logic connection inputs

do not use
Logic input 1
Logic input 1 inverted
Logic input 2
Logic input 2 inverted
Logic input 3
Logic input 3 inverted
Logic input 4
Logic input 4 inverted
Logic input 5
Logic input 5 inverted
Logic input 6
Logic input 6 inverted
Logic input 7
Logic input 7 inverted
Logic input 8
Logic input 8 inverted
Logic input 9
Logic input 9 inverted

Behaviour of the switching output
With blocking • do not send message

• send value for logic = 0

• send value for logic = 1

Value of the parameter
"Send behaviour":

Settings options
"Behaviour of the switching output on
release":

on change of logic • do not send message

• send value for current logic status
on change of logic to 1 • do not send message

• if logic = 1  send value for 1
on change of logic to 0 • do not send message

• if logic = 0  send value for 0
on change of logic and periodically send value for current logic status

(no selection)

on change of logic to 1 and periodically if logic = 1  send value for 1

(no selection)

on change of logic to 0 and periodically if logic = 0  send value for 0

(no selection)

on change of logic and receipt of object • do not send message

• Status object/s send/s
on change of logic and receipt of object

and periodically

send value for current logic status
(no selection)

23 Parameter setting

Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

Logic input 10
Logic input 10 inverted
Logic input 11
Logic input 11 inverted
Logic input 12
Logic input 12 inverted
Logic input 13
Logic input 13 inverted
Logic input 14
Logic input 14 inverted
Logic input 15
Logic input 15 inverted
Logic input 16
Logic input 16 inverted
CO2 sensor malfunction = ON
CO2 sensor malfunction = OFF
Switching output CO2 1
Switching output CO2 1 inverted
Switching output CO2 2
Switching output CO2 2 inverted
Switching output CO2 3
Switching output CO2 3 inverted
Switching output CO2 4
Switching output CO2 4 inverted
CO2 controller status ventilation 1
CO2 controller status ventilation 1 inverted
CO2 controller status ventilation 2
CO2 controller status ventilation 2 inverted

4.7.3. Connection inputs of the OR logic

The OR logic connection inputs correspond to those of the AND logic. In addition the
following inputs are available for the OR logic:

AND logic 1
AND logic output 1 inverted
AND logic output 2
AND logic output 2 inverted
AND logic output 3
AND logic output 3 inverted
AND logic output 4
AND logic output 4 inverted
AND logic output 5
AND logic output 5 inverted
AND logic output 6
AND logic output 6 inverted
AND logic output 7
AND logic output 7 inverted
AND logic output 8

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Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.

AND logic output 8 inverted

Elsner Elektronik GmbH Control and Automation Technology
Sohlengrund 16
75395 Ostelsheim Phone [phone] / 30 945-0 [e-mail]
Germany Fax [phone] www.elsner-elektronik.de

Technical support: +49 (0) 70 33 / 30 945-250