elsner elektronik KNX L Guide

Item number 70119
EN
KNX L
Brightness Sensor
Installation and Adjustment

1 Content
Elsner Elektronik GmbH • Sohlengrund 16 • 75395 Ostelsheim • Germany
Brightness Sensor KNX L • from software version 1.0, ETS programme version 1.1
Version: 20.12.2019 • Errors excepted. Subject to technical changes.
1. Description ........................................................................................... 3
1.1. Deliverables .............................................................................................................. 3
1.2. Technical specifications ........................................................................................... 3
2. Installation and commissioning ........................................................... 4
2.1. Installation notes ...................................................................................................... 4
2.2. Location ..................................................................................................................... 4
2.3. Mounting the sensor ................................................................................................ 6
2.3.1. Attaching the mount ..................................................................................... 6
2.3.2. View of rear side and drill hole plan ........................................................... 7
2.3.3. Preparing the sensor .................................................................................... 8
2.3.4. PCB layout ..................................................................................................... 8
2.3.5. Mounting the sensor .................................................................................... 8
2.4. Notes on mounting and commissioning ................................................................ 9
3. Addressing of the device at the bus .................................................... 9
4. Maintenance ....................................................................................... 10
5. Transmission protocol ....................................................................... 11
5.1. List of all communication objects ......................................................................... 11
6. Setting of parameters ........................................................................ 13
6.1. General settings ..................................................................................................... 13
6.2. Threshold values .................................................................................................... 14
6.2.1. Brightness threshold value 1 / 2 / 3 ........................................................... 15
6.2.2. Twilight threshold value 1 / 2 / 3 ................................................................ 16
6.2.3. Logic ............................................................................................................ 17
6.2.4. AND Logic 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 .............................................................. 18
6.2.5. Linkage inputs of AND logic ...................................................................... 19
6.2.6. OR Logic 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 ................................................................ 19
6.2.7. Linkage inputs of OR logic ......................................................................... 19

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-to-
date 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
KNX L brightness sensor • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
1. Description
The KNX L brightness sensor measures the intensity of illumination and transfers
the value to the KNX system. Six switching outputs with adjustable threshold values
as well as additional AND and OR logic gates are available. The sensor system, the
evaluation electronics and the electronics of the bus connection are mounted in a com-
pact housing.
Functions:
•Brightness measurement: The current light intensity is measured by a
sensor
•3 threshold values for twilight (up to 1000 lux), 3 for daylight (1-99 klux),
can be adjusted per 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
Configuration is made using the KNX software ETS. The product file can be down-
loaded from the Elsner Elektronik website on www.elsner-elektronik.de in the “Ser-
vice” menu.
1.1. Deliverables
• Sensor with combined wall/pole mounting
• 2x stainless steel installation band for pole installation
1.2. Technical specifications
Housing Plastic material
Colour White / translucent
Mounting On-wall
Protection category IP 44
Dimensions approx. 96 × 77 × 118 (W × H × D, mm)
Weight approx. 150 g
Ambient temperature Operation -30…+50°C, storage -30…+70°C
Operating voltage KNX bus voltage
Current max. 10 mA, residual ripple 10%
Data output KNX +/- bus terminal plug
BCU type Own micro controller
PEI type 0
Group addresses max. 254
Allocations max. 255
Communication objects 117

4 Installation and commissioning
KNX L brightness sensor • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
The product conforms with the provisions of EU directives.
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 assem-
bled 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. Location
Select an assembly location at the building where sun may be collected by the sensors
unobstructedly. The sensor may not be shaded by the building or for example by trees.
Measurement range
brightness
0 ... 150.000 lux
Resolution (brightness) 1 lux up to 300 lux
2 lux up to 1,000 lux
25 lux up to 150,000 lux
Accuracy (brightness) ±15% of the measurement value at 30 lux … 30,000 lux

5 Installation and commissioning
KNX L brightness sensor • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
At least 60 cm of clearance must be left all round the device. Concurrently, the prevents
spray (raindrops hitting the device) or snow (snow penetration) from impairing the
measurement. It also does not allow birds to bite it. Please ensure that the extended
awning does not cast shade on the unit, and that this is not protected from the wind.
Fig. 1
There must be at least 60 cm of space below,
to the sides and in front of the sensor left
from other elements (structures, construction
parts, etc.).
60 cm
Fig. 2
The sensor must be mounted onto a vertical
wall (or pole).
Wall
or
pole
Fig. 3
The sensor must be mounted horizontally in
the lateral direction.
horizontal
Fig. 2
The sensor must be aligned in the direction of
the façade on which shade is to be provided.
Facade

6 Installation and commissioning
KNX L brightness sensor • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
2.3. Mounting the sensor
2.3.1. Attaching the mount
The sensor comes with a combination wall/pole mount. The mount comes adhered by
adhesive strips to the rear side of the housing. Fasten the mount vertically onto the wall
or pole.
Fig. 3
When wall mounting: flat side on wall, crescent-
shaped collar upward.
Collar
Fig. 4
When pole mounting: curved side on pole, collar
downward.
Collar
Fig. 5
Different mounting arms are available from Els-
ner Elektronik as additional, optional accessories
for flexible installation of the weather station on
a wall, pole or beam (pictures of sensors exem-
plary).
Example of the use of a mounting arm: Due to
flexible ball joints, the sensor can be brought
into ideal position.
Fig. 6
Example use of the hinge arm mounting:
With the hinge arm mounting, the weather sta-
tion projects from beneath the roof overhang.
Sun, wind and precipitation can act upon the
sensors without hindrance.

7 Installation and commissioning
KNX L brightness sensor • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
2.3.2. View of rear side and drill hole plan
Fig. 7
Example use of the hinge arm mounting:
Fitting to a pole with worm drive hose clips
Langloch 7,5 x 5 mm
Fig. 8 a+b
Drill hole plan
Dimensions of rear side of
housing with bracket. Sub-
ject to change for technical
enhancement.

8 Installation and commissioning
KNX L brightness sensor • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
2.3.3. Preparing the sensor
The sensor cover snaps in on the left and right along the bottom edge (see Fig.). Re-
move the cover.
Push the bus connection cable through the rubber seal on the bottom of the sensor and
connect bus +/- to the provided clamps.
2.3.4. PCB layout
2.3.5. Mounting the sensor
Close the housing by putting the cover back over the bottom part. The cover must snap
in on the left and right with a definite “click”.
Fig. 9
1 Cover Snaps
2 Bottom part of housing
1
2
Unsnap cover and
remove upwards
Fig. 10
1SlotforKNXclamp+/-
2 Programming LED
3 Programming pushbutton for
the teach-in of the device
3
2
1

9 Addressing of the device at the bus
KNX L brightness sensor • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
To remove it, the sensor can be simply pulled upwards out of the mount, against the
resistance of the fastening.
2.4. Notes on mounting and commissioning
Do not open the device if water (rain) might ingress: even some drops might damage
the electronic system.
After the bus voltage has been applied, the device will enter an initialisation phase last-
ing a few seconds. During this phase no information can be received or sent via the
bus.
3. Addressing of the device at the bus
The device is supplied with the bus address 15.15.255. You can program another ad-
dress into the ETS by overwriting the 15.15.255 address or by teaching via the pro-
gramming key on the circuit board inside the housing.
Fig. 11
Make sure the cover and bottom part are
properly snapped together! This picture is
looking at the closed sensor from under-
neath.
Fastening
Fig. 12
Push the housing from above into the fas-
tened mount. The bumps on the mount must
snap into the rails in the housing.

10 Maintenance
KNX L brightness sensor • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
4. Maintenance
WARNING!
Risk of injury caused by components moved automatically!
The automatic control can start system components and place people in
danger.
• Always isolate the device from the mains for servicing and cleaning.
The device must regularly be checked for dirt twice a year and cleaned if necessary. In
case of severe dirt, the sensor may not work properly anymore.
ATTENTION
The device can be damaged if water penetrates the housing.
• Do not clean with high pressure cleaners or steam jets.

11 Transmission protocol
Brightness sensor KNX L • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
5. Transmission protocol
Units of measurement:
brightness in lux
5.1. List of all communication objects
Abbreviations EIS types:
1 Switching 1/0
5 Floating point value
6 8 bit value
Abbreviations flags:
C Communication
R Read
WWrite
T Transmit
No. Name Function EIS type Flags
90 Brightness threshold value
2
Switching
output
1CRT
91 Brightness
threshold value 2
Switching
output
blocking
1CRW
92 Brightness
threshold value 3
16 bit value 5 C R W T
93 Brightness
threshold value 3
1 = incre-
ment | 0 =
decrement
1CRW
94 Brightness
threshold value 3
increment 1 C R W
95 Brightness
threshold value 3
decrement 1 C R W
96 Brightness
threshold value 3
Switching
output
1CRT
97 Brightness
threshold value 3
Switching
output
blocking
1CRW
98 Twilight threshold value 1 16 bit value 5 C R W T
99 Twilight threshold value 1 1 = incre-
ment | 0 =
decrement
1CRW
100 Twilight threshold value1 increment 1 C R W
101 Twilight threshold value 1 decrement 1 C R W

12 Transmission protocol
Brightness sensor KNX L • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
102 Twilight threshold value 1 Switching
output
1CRT
103 Twilight threshold value 1 Switching
output
blocking
1CRW
104 Twilight threshold value 2 16 bit value 5 C R W T
105 Twilight threshold value 2 1 = incre-
ment | 0 =
decrement
1CRW
106 Twilight threshold value 2 increment 1 C R W
107 Twilight threshold value 2 decrement 1 C R W
108 Twilight threshold value 2 Switching
output
1CRT
109 Twilight threshold value 2 Switching
output
blocking
1CRW
110 Twilight threshold value 3 16 bit value 5 C R W T
111 Twilight threshold value3 1 = incre-
ment | 0 =
decrement
1CRW
112 Twilight threshold value 3 increment 1 C R W
113 Twilight threshold value 3 decrement 1 C R W
114 Twilight threshold value 3 Switching
output
1CRT
115 Twilight threshold value 3 Switching
output
blocking
1CRW
116 Software Version readable 6 CR
No. Name Function EIS type Flags

13 Setting of parameters
Brightness sensor KNX L • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
6. Setting of parameters
6.1. General settings
Measured value • do not send
• send periodically
• send on change
• send on change and periodically
From change of
(in relation to last measured value)
(only if sending „on change“ )
1 … 50; 10
send cyclically every
(only if sending “cyclically”)
5 sec … 2 h
Maximum telegram quota 1 • 2 • 3 • 5 • 10 • 20 telegrams per second

14 Setting of parameters
Brightness sensor KNX L • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
6.2. Threshold values
Brightness
Twilight
Use threshold value 1 / 2 / 3 No • Yes
Transmission delay of the switching out-
puts after power up and programming
5 sec … 2 h
Transmission delay of the switching out-
puts after power up and programming
5 sec … 2 h
Use threshold value 1 / 2 / 3 No • Yes
Transmission delay of the switching out-
puts after power up and programming
5 sec … 2 h
Transmission delay of the switching out-
puts after power up and programming
5 sec … 2 h

15 Setting of parameters
Brightness sensor KNX L • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
6.2.1. Brightness threshold value 1 / 2 / 3
Threshold value
If the threshold value is set per Parameter:
If the threshold value is set per Communication object:
Switching output
Threshold value setpoint per Parameter • Communication object
Threshold value setpoint per Parameter
Threshold value in klux 0 … 99; 60
Hysteresis of the threshold value in % 0 … 50; 20
Threshold value setpoint per Communication object
The value communicated last shall be
maintained
• not
• after restoration of voltage
(der geänderte Grenzwert kann
mindestens 100.000 Mal gesichert
werden)
• after restoration of voltage and
programming (Attention: Do not use for
first commissioning)
Start threshold value in kLux
valid until 1. communication
(only if the value communicated last is
„not“ maintained or „after restoration of
voltage“)
0 … 99; 60
Type of threshold change • Absolute value with a 16 bit
communication object
• Increment / decrement with one
communication object
• Increment / decrement with two
communication objects
Step size
(only if sending „Increment/decrement“)
1 klux • 2 klux • 3 klux • 4 klux • 5 klux • 10
klux
Hysteresis of the threshold value in % 0 … 50; 20
Ausgang ist bei
(TV = Threshold Value)
• TV above = 1 | TV - Hyst. below = 0
• TV above = 0 | GW - Hyst. below = 1
• TV below = 1 | GW + Hyst. above = 0
• TV below = 0 | GW + Hyst. above = 1
Switching delay from 0 to 1 none • 1 sec … 2 h
Switching delay from 1 to 0 none • 1 sec … 2 h

16 Setting of parameters
Brightness sensor KNX L • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
Blocking
„Blocking“ only appears if using „Switching output sends on change“
If block of the switching output is used:
6.2.2. Twilight threshold value 1 / 2 / 3
Threshold value
If the threshold value is set per Parameter:
Switching output sends • not
• 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 cyclically every
(only if sending “cyclically”)
5 sec … 2 h
Use block of the switching output Yes • No
Use block of the switching output Yes
Evaluation of the blocking object • if value 1: block | if value 0: release
• if value 0: block | if value 1: release
Value of the blocking object before
1. communication
0• 1
Behaviour of the switching output
with blocking
• do not send telegram
•send0
•send1
Behaviour of the switching output
with release (Selection according to pre-
vious settings)
• do not send telegram
• send status of the switching output
• if switching output = 1 => send 1
• if switching output = 0 => send 0
Threshold value setpoint per Parameter • Communication object
Threshold value setpoint per Parameter
threshold value in lux 0 … 1000; 200
Hysteresis of the threshold value in % 0 … 50; 20

17 Setting of parameters
Brightness sensor KNX L • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
If the threshold value is set per Communication object:
Switching output
See „Brightness threshold value 1 / 2 / 3“
Blocking
„Blocking“ only appears if using „Switching output sends on change“
See „Brightness threshold value 1 / 2 / 3“
6.2.3. Logic
AND Logic
OR Logic
Threshold value setpoint per Communication object
The value communicated last shall be
maintained
• not
• after restoration of voltage
(der geänderte Grenzwert kann
mindestens 100.000 Mal gesichert
werden)
• after restoration of voltage and
programming (Attention: Do not use for
first commissioning)
Start threshold value in lux
valid until 1. communication
(only if the value communicated last is
„not“ maintained or „after restoration of
voltage“)
0 … 1000; 200
Type of threshold change • Absolute value with a 16 bit
communication object
• Increment / decrement with one
communication object
• Increment / decrement with two
communication objects
Step size
(only if sending „Increment/decrement“)
1 lux • 2 lux • 3 lux • 4 lux • 5 lux • 10 lux •
20lux • 30 lux • 40 lux • 50 lux • 100 lux
Hysteresis of threshold value in % 0 … 50; 20
Communication objects logic inputs do not release • release
Logic 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 not active • active
Transmission delay of the switching
outputs after power up and programming
5 sec … 2 h
Logic 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 not active • active
Transmission delay of the switching
outputs after power up and programming
5 sec … 2 h

18 Setting of parameters
Brightness sensor KNX L • Status: 20.12.2019 • Technical changes reserved. Errors reserved.
6.2.4. AND Logic 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8
Logic output sends “one 1 bit Object“:
Logic output sends “two 8 bit objects“:
1. / 2. / 3. / 4. Input • do not use
• all switching events which the sensor
provides (see “Linkage inputs of the AND
logic”)
Logic output sends • not
• 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 1 • 0
Communication object
AND Logic 1 sends
• in case of the change of logic
• in case of the change of logic to 1
• in case of the change of logic to 0
• in case of the change of logic and
cyclically
• in case of the change of logic to 1 and
cyclically
• in case of the change of logic to 0 and
cyclically
send cyclically every
(only if sending “cyclically”)
5 sec … 2 h
Logic output sends two 8 bit objects
if logic = 1 object A value 0 … 255; 127
if logic = 0 object A value 0 … 255
if logic = 1 object B value 0 … 255; 127
if logic = 0 object B value 0 … 255
Communication objects
AND Logic 1 A and B sends
• in case of the change of logic
• in case of the change of logic to 1
• in case of the change of logic to 0
• in case of the change of logic and
cyclically
• in case of the change of logic to 1 and
cyclically
• in case of the change of logic to 0 and
cyclically
send cyclically every
(only if sending “cyclically”)
5 sec … 2 h