elsner elektronik KNX R Guide

Installation and Adjustment
EN
Elsner Elektronik GmbH Control and AutomationTechnology
Herdweg 7
D – 75391 Gechingen Phone [phone] / 93 97-0 [e-mail]
Germany Fax [phone] / 93 97-20 www.elsner-elektronik.de
KNX R
Rain Sensor

1 Content
Elsner Elektronik GmbH • Herdweg 7 • D-75391 Gechingen • Germany
Rain Sensor KNX R • from software version 1.00, ETS programme version 1.1
Status: 20.08.2013 • Errors excepted. Subject to technical changes.
1. Description ........................................................................................... 3
1.1. Technical specifications ........................................................................................... 3
2. Installation and commissioning ........................................................... 4
2.1. Installation notes ...................................................................................................... 4
2.2. Location ..................................................................................................................... 4
2.3. Mounting the sensor ................................................................................................ 5
2.3.1. Attaching the mount ..................................................................................... 5
2.3.2. View of rear side and drill hole plan ........................................................... 7
2.3.3. Preparing the sensor .................................................................................... 8
2.3.4. PCB Layout .................................................................................................... 9
2.3.5. Mounting the sensor .................................................................................. 10
2.4. Notes on mounting and commissioning .............................................................. 11
3. Addressing of the device at the bus .................................................. 11
4. Maintenance ....................................................................................... 12
5. Transmission protocol ....................................................................... 13
5.1. Listing of all communication objects .................................................................... 13
6. Setting of parameters ........................................................................ 15
6.1. General settings ..................................................................................................... 15
6.2. Logic ........................................................................................................................ 16
6.2.1. AND Logic 1 / 2 / 3 / 4 .................................................................................. 17
6.2.2. Linkage inputs of AND logic ...................................................................... 18
6.2.3. OR Logic 1 / 2 / 3 / 4 .................................................................................... 18
6.2.4. Linkage inputs of OR logic ......................................................................... 18

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
Rain Sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
1. Description
The Rain Sensor KNX R registers precipitation and transfers the status to the KNX
system. One switching output as well as AND and OR logic gates are available. The
sensor system, the evaluation electronics and the electronics of the bus connection are
mounted in a compact housing.
Functions:
•Precipitation perception: The surface of the sensor is heated so that only
drops and flakes are recognised as precipitation but not fog or dew. If it stops
raining or snowing, the sensor dries quickly and the precipitation message
ends
•1 switching output
•4 AND and 4 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 programme file (format VD),
the data sheet and the manual can be downloaded from the Elsner Elektronik
homepage on www.elsner-elektronik.de in the “Service” menu.
1.1. 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 230 V AC version: approx. 240 g,
24 V DC version: approx. 170 g
Ambient temperature Operation -30…+50°C,
Storage -30…+70°C
Operating voltage Available for 230 V AC or 24 V DC (20 V AC).
An appropriate power supply unit can be obtained from
Elsner Elektronik.
Cable cross-section Massive conductors of up to 1.5 mm² or conductors
with fine wires
Current 230 V AC version max. 20 mA,
24 V DC version max. 100 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

4 Installation and commissioning
Rain Sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
The product conforms with the provisions of EC guidelines
• EMC Directive 2004/108/EC
• Low Voltage Directive 2006/95/EC
The following standards and/or technical specifications have been applied:
• EN 50491-5-1: 2010
• EN 50491-5-2: 2011
2. Installation and commissioning
2.1. Installation notes
Installation, testing, operational start-up and troubleshooting should
only be performed by an electrician.
DANGER!
Risk to life from live voltage (mains voltage)!
There are unprotected live components within 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 precipitation may be collected by the
sensor unobstructedly. Do not assemble any construction components above the sen-
Communication objects 34
Heating rain sensor approx. 1,2 W (230 V and 24 V)

5 Installation and commissioning
Rain Sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
sor from where water may drop on to the rain sensor after it has stopped raining or
snowing.
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. 1
The rain sensor must be mounted onto a ver-
tical wall (or pole).
Wall
or
pole
Fig. 2
The rain sensor must be mounted horizontal-
ly in the lateral direction.
Horizontal
Fig. 3
When wall mounting: flat side on wall, crescent-
shaped collar upward.
Collar

6 Installation and commissioning
Rain Sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
Fig. 4
When pole mounting: curved side on pole, collar
downward.
Collar
Fig. 5
Different mounting arms are available from El-
sner Elektronik as additional, optional accesso-
ries for flexible installation of the weather station
on a wall, pole or beam.
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.
Fig. 7
Example use of the hinge arm mounting:
Fitting to a pole with worm drive hose clips

7 Installation and commissioning
Rain Sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
2.3.2. View of rear side and drill hole plan
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
Rain Sensor KNX R • Status: 20.08.2013 • 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.). The
cover of the 230V model is also screwed on top. Remove the cover. Proceed carefully,
so as not to pull off the wire connecting the PCB in the bottom part with the rain sensor
in the cover (soldered cable connection in case of 230 V AC version, cable with plug in
case of 24 V DC version).
Push the bus connection cable through the rubber seal on the bottom of the sensor and
connect bus +/- to the provided clamps.
For 24V devices the connection cable must be plugged in between the cover and circuit
board.
Fig. 9
1 Screw-on cover (230V
device)
2 Cover with rain sensor
3) Cover Snaps
4 Bottom part of housing
3
4
Unsnap cover and
remove upwards
2
1
Fig. 10
Remove the cable shielding under the circuit
board and only feed the connector cables up-
wards through the openings in the circuit
board.

9 Installation and commissioning
Rain Sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
2.3.4. PCB Layout
230 V AC version
Fig. 11
1) Cable connection to the rain
sensor in the housing cover
2) Opening for the cable for the
voltage supply
3) Tension clamp for voltage
supply (230 V AC), suitable for
massive conductors of up to
1.5 mm² or conductors with
fine wires
4) Slot for KNX clamp +/-
5 Opening for the bus cable
6) Programming pushbutton for
the teach-in of the device
7) Programming LED
23
4
6
7
5
1

10 Installation and commissioning
Rain Sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
24 V DC version
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. 12
1 Slot for cable connection to
the rain sensor in the housing
cover
2 Tension clamp for voltage
supply (24 V DC/20 V AC). For
massive conductors of up to
1.5 mm² or conductors with
fine wires. Terminal configu-
ration independent from po-
larity (+/- or -/+).
3 Opening for the cable for the
voltage supply and for the
bus cable
4SlotforKNXclamp+/-
5 Programming pushbutton for
the teach-in of the device
6 Programming LED
1 2
4
3
5
6
Fig. 13
Make sure the cover and bottom part are
properly snapped together! This picture is
looking at the closed sensor from under-
neath.
Fastening

11 Addressing of the device at the bus
Rain Sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
DANGER!
There is a risk to life from the live voltage on a 230 V device!
• The cover must be screwed on in operation.
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.
Observe the correct connections. Incorrect connections may destroy the sensor or con-
nected electronic devices.
After the auxiliary voltage has been applied, the device will enter an initialisation phase
lasting a few seconds. During this phase no information can be received via the bus.
3. Addressing of the device at the bus
The device is supplied with the bus address 15.15.250. You can program another ad-
dress into the ETS by overwriting the 15.15.250 address or by teaching via the pro-
gramming key on the circuit board inside the housing.
Fig. 14
With the 230V model, screw the cover on to
the underpart, to prevent unauthorised or ac-
cidental opening.
Fig. 15
Push the housing from above into the fas-
tened mount. The bumps on the mount must
snap into the rails in the housing.

12 Maintenance
Rain Sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
DANGER!
Risk to life from live voltage (mains voltage)!
• With the 230V model, bus addressing via the programming key
should only be done by an accredited electrician.
• Do not touch any components on the circuit board while pressing
the key.
4. Maintenance
DANGER!
There is a risk to life from the live voltage (mains voltage)!
If you come into contact with live components in the device, (e.g. caused
also by a jet of water) there is the risk of an electric shock with
230 V devices.
Risk of injury caused by components moved automatically!
The automatic control can start system components and place people in
danger (e.g. moving windows/awnings if a rain/wind alarm has been
triggered while cleaning).
• Always isolate the device from the mains for servicing and cleaning
(e. g. switch off or remove the fuse).
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 significant volumes of water penetrate the
housing.
• Do not clean with high pressure cleaners or steam jets.

13 Transmission protocol
Rain sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
5. Transmission protocol
5.1. Listing of all communication objects
Abbreviations EIS types:
1 Switching 1/0
6 8 bit value
Abbreviations Flags:
C Communication
R Read
WWrite
T Transmit
No. Name Function EIS
type
Flags
0 Rain Switching Output 1 C R T
1 AND Logic 1 Switching Output 1 C R T
2 AND Logic 1 8 bit Output A 6 C R T
3 AND Logic 1 8 bit Output B 6 C R T
4 AND Logic 2 Switching Output 1 C R T
5 AND Logic 2 8 bit Output A 6 C R T
6 AND Logic 2 8 bit Output B 6 C R T
7 AND Logic 3 Switching Output 1 C R T
8 AND Logic 3 8 bit Output A 6 C R T
9 AND Logic 3 8 bit Output B 6 C R T
10 AND Logic 4 Switching Output 1 C R T
11 AND Logic 4 8 bit Output A 6 C R T
12 AND Logic 4 8 bit Output B 6 C R T
13 OR Logic 1 Switching Output 1 C R T
14 OR Logic 1 8 bit Output A 6 C R T
15 OR Logic 1 8 bit Output B 6 C R T
16 OR Logic 2 Switching Output 1 C R T
17 OR Logic 2 8 bit Output A 6 C R T
18 OR Logic 2 8 bit Output B 6 C R T
19 OR Logic 3 Switching Output 1 C R T
20 OR Logic 3 8 bit Output A 6 C R T
21 OR Logic 3 8 bit Output B 6 C R T
22 OR Logic 4 Switching Output 1 C R T
23 OR Logic 4 8 bit Output A 6 C R T
24 OR Logic 4 8 bit Output B 6 C R T

14 Transmission protocol
Rain sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
25 Logic Input 1 Input 1 C R W
26 Logic Input 2 Input 1 C R W
27 Logic Input 3 Input 1 C R W
28 Logic Input 4 Input 1 C R W
29 Logic Input 5 Input 1 C R W
30 Logic Input 6 Input 1 C R W
31 Logic Input 7 Input 1 C R W
32 Logic Input 8 Input 1 C R W
33 Software Version readable 6 C R
No. Name Function EIS
type
Flags

15 Setting of parameters
Rain sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
6. Setting of parameters
6.1. General settings
Switching output is with rain 0 • 1
Switching output sends • not
• in case of change
• in case of change to 1
• in case of change to 0
• in case of change and cyclically
• in case of change to 1 and cyclically
• in case of change to 0 and cyclically
send cyclically every
(only if sending “cyclically”)
5 sec … 2 h
Maximum telegram quota 1 • 2 • 3 • 5 • 10 • 20 Telegrams per second

16 Setting of parameters
Rain sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
6.2. Logic
AND Logic
OR Logic
Communication objects logic inputs do not release • release
Logic 1 / 2 / 3 / 4 not active • active
Transmission delay of switching outputs
after power up and programming
5 secs … 2 h
Logic 1 / 2 / 3 / 4 not active • active
Transmission delay of switching outputs
after power up and programming
5 secs … 2 h

17 Setting of parameters
Rain sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
6.2.1. AND Logic 1 / 2 / 3 / 4
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

18 Setting of parameters
Rain sensor KNX R • Status: 20.08.2013 • Technical changes reserved. Errors reserved.
6.2.2. Linkage inputs of AND logic
do not use
Communication object logic input 1
Communication object logic input 1 inverted
Communication object logic input 2
Communication object logic input 2 inverted
Communication object logic input 3
Communication object logic input 3 inverted
Communication object logic input 4
Communication object logic input 4 inverted
Communication object logic input 5
Communication object logic input 5 inverted
Communication object logic input 6
Communication object logic input 6 inverted
Communication object logic input 7
Communication object logic input 7 inverted
Communication object logic input 8
Communication object logic input 8 inverted
Rain
no rain
6.2.3. OR Logic 1 / 2 / 3 / 4
All settings of the OR logic correspond to those of the AND logic.
6.2.4. Linkage inputs of OR logic
The linkage inputs of the OR logic correspond with the parameters of the AND logic.
The OR logic is additionally provided with the following inputs:
AND logic output 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
1. / 2. / 3. / 4. Input • do not use
• all switching events which the sensor pro-
vides (see “Linkage inputs of the OR logic”)
Logic output sends • one 1 bit object
• two 8 bit objects

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Elsner Elektronik GmbH Control and AutomationTechnology
Herdweg 7
D – 75391 Gechingen Phone [phone] / 93 97-0 [e-mail]
Germany Fax [phone] / 93 97-20 www.elsner-elektronik.de