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
Errors excepted. Subject to technical changes.
1. Description ........................................................................................... 3
1.1. Technical specifications ........................................................................................... 3
2. Installation and commissioning ........................................................... 4
2.1. Notes on installation ................................................................................................ 4
2.2. Location ..................................................................................................................... 5
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. Maintenance ....................................................................................... 11
4. Transmission protocol ....................................................................... 12
4.1. Listing of all communication objects .................................................................... 12
5. Setting of parameters ........................................................................ 14
5.1. General settings ..................................................................................................... 14
5.2. Logic ........................................................................................................................ 15
5.2.1. AND Logic 1 / 2 / 3 / 4 .................................................................................. 16
5.2.2. Linkage inputs of AND logic ...................................................................... 17
5.2.3. OR Logic 1 / 2 / 3 / 4 .................................................................................... 18
5.2.4. Linkage inputs of OR logic ......................................................................... 18

2 Content
Elsner Elektronik GmbH • Herdweg 7 • D-75391 Gechingen • Germany
Rain Sensor KNX R • from software version 1.00, ETS programme version 1.1
Errors excepted. Subject to technical changes.

3 Description
Rain Sensor KNX R • Date of issue: 05.11.2010 • 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
VD2), 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 20 V AC 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

4 Installation and commissioning
Rain Sensor KNX R • Date of issue: 05.11.2010 • Technical changes reserved. Errors reserved.
The following standards have been considered for the evaluation of the product in
terms of electro magnetic compatibility:
Transient emissions:
• EN 60730-1:2000 Section EMV (23, 26, H23, H26) (threshold category: B)
• EN 50090-2-2:1996-11 + A1:2002-01 (threshold category: B)
• EN 61000-6-3:2001 (threshold category: B)
Interference resistance:
• EN 60730-1:2000 Section EMV (23, 26, H23, H26)
• EN 50090-2-2:1996-11 + A1:2002-01
• EN 61000-6-1:2004
The product has been tested for the above mentioned standards by an accredited EMV
laboratory.
2. Installation and commissioning
2.1. Notes on installation
Warning, mains voltage!
National legal regulations are to be observed.
Installation, inspection, commissioning and troubleshooting of the
device must only be carried out by a competent electrician.
Disconnect all lines to be assembled, and take safety precautions against accidental
switch-on.
The device is exclusively intended for appropriate use. With each inappropriate change
or non-observance of the instructions for use, any warranty or guarantee claim will be
void.
After unpacking the device, check immediately for any mechanical damages. In case of
transport damage, this must immediately notified to the supplier.
If damaged, the device must not be put into operation.
If an operation without risk may supposedly not be guaranteed, the device must be put
out of operation and be secured against accidental operation.
The device must only be operated as stationary system, i.e. only in a fitted state and
after completion of all installation and start-up works, and only in the environment in-
tended for this purpose.
Allocations max. 255
Communication objects 34
Heating rain sensor approx. 1,2 W (230 V and 24 V)

5 Installation and commissioning
Rain Sensor KNX R • Date of issue: 05.11.2010 • Technical changes reserved. Errors reserved.
Elsner Elektronik does not assume any liability for changes in standards after publica-
tion of this instruction manual.
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-
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 horizon-
tally in the lateral direction.
Horizontal

6 Installation and commissioning
Rain Sensor KNX R • Date of issue: 05.11.2010 • Technical changes reserved. Errors reserved.
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
An additional, optional accessory available from
Elsner Elektronik is an articulated arm for flexib-
le wall, pole or beam mounting of the sensor.
Fig. 6
Example uses of the hinge arm mounting: With
the hinge arm mounting, the sensor peeps out
from beneath the roof overhang.

7 Installation and commissioning
Rain Sensor KNX R • Date of issue: 05.11.2010 • Technical changes reserved. Errors reserved.
2.3.2. View of rear side and drill hole plan
Fig. 7
Example uses of the hinge arm mounting: Fit-
ting 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
Rain Sensor KNX R • Date of issue: 05.11.2010 • 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. 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 Cover with rain sensor
2) Cover Snaps
3 Bottom part of housing
2
3
Unsnap cover and
remove upwards
1

9 Installation and commissioning
Rain Sensor KNX R • Date of issue: 05.11.2010 • Technical changes reserved. Errors reserved.
2.3.4. PCB Layout
230 V AC version
Fig. 10
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 • Date of issue: 05.11.2010 • 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. 11
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), sui-
table for massive conductors
of up to 1.5 mm² or conduc-
tors with fine wires
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. 12
Make sure the cover and bottom part are pro-
perly snapped together! This picture is loo-
king at the closed sensor from underneath.
Fastening

11 Maintenance
Rain Sensor KNX R • Date of issue: 05.11.2010 • 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.
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 5 seconds. During this phase no information can be received via the bus.
3. Maintenance
The sensor 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.
As a precaution, the device should always be separated from
power supply for maintenance works (e.g. deactivate or remove
fuse).
Fig. 13
Push the housing from above into the faste-
ned mount. The bumps on the mount must
snap into the rails in the housing.

12 Transmission protocol
Rain sensor KNX R • Date of issue: 19.01.2011 • Technical changes reserved. Errors reserved.
4. Transmission protocol
4.1. 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

13 Transmission protocol
Rain sensor KNX R • Date of issue: 19.01.2011 • 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

14 Setting of parameters
Rain sensor KNX R • Date of issue: 19.01.2011 • Technical changes reserved. Errors reserved.
5. Setting of parameters
5.1. 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

15 Setting of parameters
Rain sensor KNX R • Date of issue: 19.01.2011 • Technical changes reserved. Errors reserved.
5.2. 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

16 Setting of parameters
Rain sensor KNX R • Date of issue: 19.01.2011 • Technical changes reserved. Errors reserved.
5.2.1. AND Logic 1 / 2 / 3 / 4
Logic output sends “one 1 bit Object“:
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

17 Setting of parameters
Rain sensor KNX R • Date of issue: 19.01.2011 • Technical changes reserved. Errors reserved.
Logic output sends “two 8 bit objects“:
5.2.2. 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
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 • Date of issue: 19.01.2011 • Technical changes reserved. Errors reserved.
Communication object logic input 8
Communication object logic input 8 inverted
Rain
no rain
5.2.3. OR Logic 1 / 2 / 3 / 4
All settings of the OR logic correspond to those of the AND logic.
5.2.4. 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
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

19 Setting of parameters
Rain sensor KNX R • Date of issue: 19.01.2011 • Technical changes reserved. Errors reserved.
AND logic output 3 inverted
AND logic output 4
AND logic output 4 inverted