KNX Introduction

KNX Introduction Discover KNX

KNX Basics Topics What is KNX?

KNX history / KNX association

KNX components

KNX benefits

SE KNX product portfolio

Savings

KNX installation KNX operation/configuration KNX applications at home KNX applications in the office Schneider Electric

- ISC Training Academy- March 2010

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What is KNX?

What is KNX? The three letters “KNX” stands for: ……………………………………. However…. ●KNX is a bus system ●KNX is a world standard ●KNX brings building functions together ●KNX offers flexibility, safety, comfort and cost efficiency

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Conventional installation ●Every function is realized with one or more cables ●More functions = more cables ●Each function must be planned in detail before installation ●If a function should be changed, the physical installation has to be changed ●Each device is used for one function only ●Even low level interaction between different functions become complex and cost intensive

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Bus installation ●Separation of information and energy ●Only one cable (the bus) for all information = less control cables ●Functions depends on programming = logical connections between inputs and outputs replaces physical connections ●Change of functions without touching the installation is possible ●Multiple use of single devices ●Complex interaction between different functions are easy

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230 V Bus

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KNX – the world´s only open STANDARD for home and building control ● European standard – EN 50090

● Worldwide standard – ISO/IEC 14543 ● The KNX-system… ● is truly open and platform independent

● guarantees multi-vendor and cross-discipline interoperability, ensured via certification ● is based on 15 years experience from the EIB market and the EIB technology and extended with additional media, configuration methods and experience from BatiBUS and EHS

● Several thousands of products from over hundred manufacturers are easily available Schneider Electric


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Building functions Generally handled by KNX

Here starts the public road

●Lighting on/off, dimming

●Heating/Cooling/Ventilation on/off, continuous (valves, heaters, dampers, fans)

●Blinds and other drives up/down, position (venetian blinds, shutters)

●Any other electrical consumer ●Surveillance / Alarms ●Measuring / Metering ●Gateways to other systems ●Signal transmission for other systems

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Control and Monitoring of Building functions Examples ● Manually e.g. push-buttons ● Movement dependent ● Time dependent ● Brightness dependent ● Temperature dependent ● Weather dependent ● State (contact) dependent ● Mix/Other dependencies ● Locally/Centrally ● Individually/Group ● Scene control ● Multifunctional Displays ● Building management/SCADA-system (Supervisory Control and Data Acquisition) Schneider Electric


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Benefits bus system, standard, multi-trade ●

Flexibility Planning, Installation, Adaptation, Use, Multi-vendor

●

Safety and security Monitoring, Alarm, Fire load, Technology

●

Comfort Easiness, Automatic, Scenes, Design

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Cost efficiency Energy efficiency, Adaptations, Maintenance, Multi-vendor

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KNX components

Which components does the KNX-system consist of? ●System components – Components to build the communicating network, e.g. power supply

●Sensors – Receives an external command – Transform it to KNX-information – Sends the information as telegram on the bus

●Actuators – Receives telegram from the bus – Processes the information – Execute the function Schneider Electric


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KNX – base components Sensors ● Pushbuttons, thermostats, analogue and digital inputs, timers, sensors for wind, rain, light, heating, motion etc. ● Function => Sensors record information like a simple switching or environmental condition that is transmitted to the bus in the form of a data telegram.

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KNX – base components Actuators ● Switch actuators, dimming actuators, blind actuators, heating actuators, visualisation ● Function => Actuators receive data telegrams and convert these into e.g. switching/dimming signals or even visualise states.

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KNX – base components ETS software ● The manufacturer independent Engineering Tool Software enables to project, commission, document and diagnose a KNX installation. ● The device-function related application programs are part of the free available manufacturer product database. They are loaded into the devices by the ETS via the USB interface of a PC and the bus. ● Besides a onetime fee for the ETS-tool, no additional costs for projecting and commissioning will be charged. ● => By now more than 15.000 ETSlicenses sold!

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SE KNX product portfolio Overview

The visible parts of the system! Push-buttons ●Control the functions with push-buttons in excellent design of your choice

System M 4-gang

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Artec 4-gang

Unica 2-gang

Altira 2-gang

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The visible parts of the system! Room Temperature Control units ●Control the temperature with controllers in excellent design of your choice

System M

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Artec

Unica

Altira

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The visible parts of the system! Movement/Presence detectors ●Control the functions automatically by movement ● ARGUS 220 IP 55 ● ARGUS Presence ● Basic ● Standard ● Light control and IR

● ARGUS 180 Flush mounted ● System M (1m and 2,2m over floor) ● Artec (1m over floor) ● Unica (2,2m over floor) ● Altira (2,2m over floor)

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The visible parts of the system! Touch Panels ●Control and monitor functions with touch panels 7” touch panel for residential

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10” touch panel for buildings

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The invisible parts of the system! Actuators ●Switch actuators ●Blind actuators ●Dimming actuators ●Control units 0-10V ●DALI-gateways ●Analog actuators ●Heating actuators ●Valve drives ●Fan-coil actuator

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The invisible parts of the system! Sensors ●Binary inputs ●Analog inputs ●Brightness sensors ●Weather stations ●Time switches

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The invisible parts of the system! System components ●Power supplies with backup ●Line/Area coupler ●KNX/IP-router ●USB-interface

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KNX installation

Example of connection within a bus line Bus cable

Push-button

Power supply

Push-button with room temperature controller

Switch actuator

Dimmer actuator

Binary input

Valve drive

Shutter actuator

16A L1 16A

L2

Topology within one bus line • Free topology (mix of line, tree and star, but no loop) • max. 64 bus devices • max. 1000 m bus cable • max. 350 m between power supply and device • min. 200 m between two power supplies

16A L3 M

N PE Schneider Electric


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Bus cable installation (twisted pair, TP) Free topology ● The topologies line, star and tree can be combined ● Rings have to be avoided ● KNX does not require terminating resistors

Line

Star

Tree Schneider Electric


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Bus cable ● Data transfer and power supply via 2 twisted wires (red/black) ● Spare pair (yellow/white), usable for example for extra power supply or cable breakdown supervision ● Installation together with 230/400 V permitted ● Schneider Electric strongly recommends using an KNX/EIB-certified bus cable, for example: Type

Structure

Cabling

YCYM 2 x 2 x 0.8

KNXA guideline (Basis: DIN VDE 0207 and 0815) Cores: red (+EIB) black (-EIB) yellow (free) white (free)

Fixed cabling: in dry, damp and wet rooms, for surface mounting, flush mounting, in pipes. Outdoors, if protected from direct sunlight.

J-Y (St) Y 2 x 2 x 0.8 EIB version

DIN VDE 0815 Cores: red (+EIB) black (-EIB) yellow (free) white (free)

Fixed cabling: in dry and damp operating areas, surface mounting, flush mounting, in pipes outdoors, in and beneath plaster.

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SELV Safety Extra Low Voltage Network

SELV network

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Bus cable installation ● SELV System allows installation close to mains ● It is allowed to install the bus cable in the same pipe as power cables / min 19 mm pipes ● Bus and power cable cores may be present in the same installation box if the safety separation of the bus and power cable cores in the installation box is guaranteed by the installation. E.g. boxes with fixed terminals or partition wall

KNX

KNX

KNX

Fig. 2: Distance between KNX cable and mains Schneider Electric


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Bus cable installation

The metal foil shield is removed. The shield/drain wires are not earthed and are not integrated in the equipotential bonding. The shields are not interconnected in the cable run either.

Example of labelling: KNX line 1.1 The drain wire and the yellow/white wires (unless they are used) are bent back and isolated (not cutted)

Example of connection of a push-button interface

Source: KNX Handbook, section 6.6

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Bus connection terminal/ Spare pair branch terminal Red/Black ● Supplied with almost all bus devices ● Disconnection of device without breaking the bus line

● 4 plug-in terminals per wire ● Can be used for branch off in a conjunction box

Yellow/White ● Branch terminal for the spare pair ● 4 plug-in terminals per wire

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KNX topology Twisted pair only 8.

230V

Area 3...15

1. 1 Line = up to 64 devices 2. > 64 devices => New Line 3. Connect 2 Lines = Line couplers

Area 2

9.

x.0.0

6.

2.0.0

Area 1

1.0.0

4. Main line of the Area 5. 1 Area = up to 15 Lines

7.

4. 230V

6. > 15 Lines => New Area 1.1.0

7. Connect 2 Areas = Area couplers 8. Area Line (Backbone) 9. Up to 15 Areas

1.2.0

3.

1.

2.

230V

1.1.1 1.1.2

5.

230V

1.2.1 1.2.2

1.2.3

1.1.3 1.1.4

1.2.4

1.2.x

1.1.x 1.1.64

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1.15.0

1.2.64

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KNX topology Twisted pair and Ethernet backbone Switch/Router

8. Area 3...15

1. 1 Line = up to 64 devices 2. > 64 devices => New Line 3. Connect 2 Lines = Line couplers

Area 2

6.

2.0.0

Area 1

1.0.0

4. Main line of the Area 5. 1 Area = up to 15 Lines

7.

4. 230V

6. > 15 Lines => New Area 7. Connect 2 Areas = KNX/IP router Replaces Area Couplers 8. Area Line (Ethernet backbone)

1.1.0

1.2.0

3.

1.

2.

230V

1.1.1

9. Up to 15 Areas 1.1.2

5.

230V

1.2.1 1.2.2

1.2.3

1.1.3 1.1.4

1.2.4

1.2.x

1.1.x 1.1.64

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1.15.0

1.2.64

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KNX topology Twisted pair and Ethernet backbone 4.

Switch/Router

1. 1 Line = up to 64 devices 2. > 64 devices => New Line 3. Connect 2 Lines = KNX/IP router Replaces Line Couplers 4. Backbone (Ethernet) No Area Couplers needed 5. Addressing x.y.0 (x, y: 1..15) = up to 225 lines

1.1.0

1.2.0

3.

1.

5. 2.

230V

1.1.1 1.1.2

230V

1.2.1 1.2.2

1.2.3

1.1.3 1.1.4

1.2.4

1.2.x

1.1.x 1.1.64

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x.y.0

1.2.64

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Topology example Building A

Building B

Line 1.6

Line 1.5

Line 2.4

Line 1.4

Line 2.3

Line 1.3

Line 2.2

Line 1.2 Line 1.0

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Line 2.1

Line 1.1


Line 0.0

Line 2.0

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Example of cable drawing in a private home ● All actuators are placed centralized in the distribution board with cables going to each consumer ● Sensors are placed decentralized and bus cable is going from one sensor to another

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Individual address ● Each KNX-device receives a unique address in the system via parameterization (ETS) ● The individual address provides the device with a name, i.e. a number ● It is divided into Area, Line and Device number: _ _ . _ _ . _ _ _ ● Example: Area Line Device 1.1.15 ● The KNX device must be labelled with the individual address when it has been programmed by ETS ● The individual address is used for programming and service Schneider Electric


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KNX operation and configuration

Necessary for design and commissioning ● Product database Contains the application programs which finally shall be downloaded into the products. For free at: www.schneider-electric.com or PL@net (Schneider internal) ● ETS3 (Engineering Tool Software) The tool to design and commission the KNX-project. The product database must first be imported into ETS. Purchase at: www.knx.org ● KNX-products When the design is finished the configuration data are downloaded into the products

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Configuration steps In the ETS ● Insertion of products in the project ● Assignment of individual addresses (physical addresses) to the different devices (for the unique identification of a sensor or actuator in a KNX installation); ● Selection and setting (parameterization) of the appropriate application software for sensors and actuators ● Assignment of group addresses (for linking the functions of sensors and actuators). ● Download of the settings into the devices

Parameter settings of Switch actuator 4-gang with current detection Schneider Electric


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Bus access and data exchange ● KNX is a decentralized and event-controlled bus system, i.e. no central unit, and the bus is idle (free) if nothing happens or changes ● All connected bus devices can exchange data between each other, packed into telegrams and sent over the bus (serial transmission of “1” and “0”), e.g. from a sensor (the command output) to one or more actuators (the command receiver). ● CSMA/CA (Carrier Sense Multiple Access / Collision Avoidance) is used for bus access and collision handling ● Transmission rate: 9600 bit/s ● Average transmission time for sending and confirmation of a telegram is approx. 25 ms Schneider Electric


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Practical example Physical connections - cable

1.1.2 1.1.1 Lamp 1 Lamp 2 Lamp 3 Lamp 4

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KNX at home! Individual light control ● Deactivation of all electrical consumers via “Central-OFF”-switch ● Individual light settings (scenes), easily saved and retrieved, also by remote ● “Panic button” for illuminating the house and garden if suspicious noises is heard in the night ● Time switching to simulate presence during absence or longer holidays

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KNX application examples

KNX at home! Individual light control ● Deactivation of all electrical consumers via “Central-OFF”-switch ● Individual light settings (scenes), easily saved and retrieved, also by remote ● “Panic button” for illuminating the house and garden if suspicious noises is heard in the night ● Time switching to simulate presence during absence or longer holidays

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KNX at home! Comprehensive signaling ● Warnings regarding open windows and doors via a touch panel ● Telephone forwarding of alarm messages, to e.g. a security company or neighbor ● Deterrence of intruders by means of movement detectors ● Messages signaling malfunction of technical devices via e-mail (SMS)

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KNX at home! Intelligent blind control ● Central control of electrically operated shutters and blinds at the press of a button ● Protection from harsh direct sunlight or bad weather via awnings and blinds that react to sun and wind sensors ● Protection from break-ins via timecontrolled shutters and blinds.

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KNX at home! Precision-timed temperature control ● Pleasant room temperatures via individual temperature control (heating and/or cooling) ● Lowering of heating/cooling costs via timed control of setpoints ● Automatic limitation of heating/cooling when windows are opened

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KNX at home! Flexible building management ● Flexible adjustment of building functions to suit altered usage of rooms. ● Worldwide access to all building technology by means KNX Internet Controller. ● Central monitoring and control of building technology via PC or Touch panel. ● Startup of heating by telephone or mobile before returning from holidays.

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KNX in the office! Automatic light control ● Time, brightness and/or presence dependent control of lighting. ● Daylight-dependent adjustment of lighting via uniform illumination control. ● Power savings of up to 70% when combined with our intelligent temperature control system.

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KNX in the office! Intelligent blind control ● Control of sun awnings dependent on current levels of direct sunlight. ● Retraction of blinds by means of wind sensors in the event of strong winds. ● Adjustment of the angle of blind slats depending on the current position of the sun. ● Individual manual control via pushbutton

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KNX in the office! Individual climate control ● Rooms heated/cooled depending on occupancy. ● Immediate closure of the heating/cooling valves when a window is opened ● Individual, precision-timed supply of heating/cooling by means of controllable room temperature controllers ● No more manual adjustment of radiators. ● Heating and cooling controlled in sequence Schneider Electric


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KNX in the office! Flexible building management ● Flexible adjustment of building functions to suit altered usage of rooms. ● Worldwide access to all building technology by means of IC 1 KNX internet controller. ● Fault messages displayed and automatically forwarded to the building‘s electrician ● Monitoring of windows, doors or underground car parks using sensors. ● Avoidance of cost-intensive load peaks via planned connection and disconnection of electrical consumers. Schneider Electric


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Beautiful on the outside; intelligent on the inside ● ● ● ● ● ● ● ● ● ● ● ● ●

Office buildings Private houses/apartments Schools and public buildings Commercial buildings Hotels Restaurants Laboratories/Industries Hospital and retirement homes Leisure Facilities / Sport arenas Churches Cinemas Museums and galleries ...

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KNX is green Energy Efficiency

The demand for energy efficiency ● Today there is a high demand for more energy efficient buildings ● The directive 2002-91-EC states that all countries in Europe should have some kind of energy labelling on their buildings ● The standard EN 15232 defines what kind of functions are mandatory to achieve an energy efficient building ● KNX is an easy way to accomplish energy efficiency Classification of functions

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Example of classification of buildings (France)

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Energy savings with KNX ● Energy Efficiency ● Closely connected with the KNX building system engineering is the comfort of controlling: ●Shutters and blinds ●Lighting system ●Heating system and airconditioning ●Audio system and many more

● Furthermore this comfort brings energy savings of up to 50% as new researches documented (Source: www.iia.hs-bremen.de/KNXEnergieeffizienz)

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SeeTool ● A tool to calculate potential savings in buildings ● Verified and documented solutions ● Wiring diagrams, product info, user manual etc

● Shows the potential savings in a clear way

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What are the savings estimated in SeeTool?

● Energy Total savings ● Electricity savings ● Heating & Cooling savings

● CO2 savings

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compared total energy consumed for lighting, heating & cooling compared energy consumption for lighting compared energy consumption for heating &/or cooling compared CO2 emissions, dependent on defined generation for energy production

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Benefits of KNX

Benefits bus system, standard, multi-trade ●

Flexibility Planning, Installation, Adaptation, Use, Multi-vendor

●

Safety and security Monitoring, Alarm, Fire load, Technology

●

Comfort Easiness, Automatic, Scenes, Design

●

Cost efficiency Energy efficiency, Adaptations, Maintenance, Multi-vendor

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Advantages with KNX Flexibility ● Highly flexible and time-efficient electrical installation and planning due to modular system ● Integration into building management systems ● Simple and economic adaptation of the building functions to changing requirements. ● System can be extended in stages and is use-oriented, making it possible to tailor solutions in modular fashion

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Advantages with KNX Safety and Security ● Worldwide KNX Standard integrates different services, applications and manufacturers. ● KNX – “all round protection” of the house and its inhabitants – increased protection from break-ins, fire, etc. ● Reduced fire load due to reduction of the number of live power lines ● Less electromagnetic fields

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Advantages with KNX Comfort ● Innovative control interfaces with superb design features, ideal for integration in modern architectural styles ● Building functions can be controlled and monitored simply, effortlessly and comfortably ● Electrical installation is simple, effortless and comfortable to control and operate. ● Simple handling via easy-to-use projection, start-up and diagnostics tools Schneider Electric


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Advantages with KNX Cost efficiency ● Short installation times thanks to clear wiring and cable routing. ● Cost savings thanks to intelligent KNX energy management and minimal outlay for adaptation to changing requirements. ● Short rebuilding and construction times gives the building a higher flexibility and it can faster come into use / re-use; ● higher income from rent ● higher profitability ● higher yield ● higher second-hand value Schneider Electric


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KNX history and the KNX association

KNX history ● 1987 - The awareness that manufacturer specific and proprietary systems would hinder a broad market penetration guided the leading manufacturers in electrical installation techniques to the constitution of the INSTABUS-research and development organization. ● (Founding members: Merten, Berker, Gira, Jung and Siemens)

● 1990 - Constitution of the EIBA (European Installation Bus Association) based in Brussels to define technical guidelines, certification and awarding of the EIB trademark, preparing of European and international standards (DIN VDE 0829 and EN 50090) and coordination of the EIBA-member activities.

● 1999 - Members of the following associations have founded the KNX Association: ● BatiBUS Club International (BCI) ● European Installation Bus Association (EIBA) ● European Home Systems Association (EHSA)

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KNX history ●Today => KNX-offer consists of more than 6000 product groups with a multiple on KNX-certified products from more than 175 registered manufacturers. ● Nowadays KNX is the first open world-standard for home and building automation meeting European and International standards. ● Europe: CENELEC EN50090 + CEN EN 13321 ● International: ISO/IEC 14543 + GB/Z 20965 Chinese Standard + ANSI/ASHRAE 135 US Standard

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Goals of the KNX association ● Definition of testing and quality standards via working and expert groups (KNX specification) ● Technical hotline for manufacturers developing KNX compatible devices ● Issue of KNX trademark on the basis of specifications through KNC Certification ● National and international Standardization activities ● Promotion of training measures by certification of training centers ● Promotional activities (web site, trade fairs, brochure etc) ● Encouraging forming of national KNX groups ● Scientific partnership for technical institutes ● Rest specifications work/promotion/certification of legacy systems

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Savings

Cost of installation A look at the costs 30.000

Costs of today`s Installation

25.000

Costs of KNX Installation

20.000 15.000 10.000 5.000 2.000 €

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low


middle

high

Functionality

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Installation savings on LSC Savings potential Costs of conventional installation Savings Investment costs: 25% Costs of KNX installation

Operating costs: 75%

Time Concept, idea, financing Schneider Electric

Planning


Construction phase

Phase of utilization Menu

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KNX Trainings KNX Certification KNX Product and Solution trainings

KNX ETS3 certification training ● Location: Merten in Wiehl, Germany ● Dates: see training catalogue ● Duration: ● Monday 9:00 to Friday 15:00

● Prerequisite knowledge ● Good English knowledge is mandatory

● Max. number of participants: 10 ● Up to 2 persons on each training set

● Trainer: Trond Høyem, ● Registration: Christine Grabolle [email protected] with copy to [email protected]

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KNX ETS3 certification training ● Objectives ● To get the KNX Certification. ● This label means you have acquired the level to be able to build applications and projects.

● Content ● KNX Certification applications. ● KNX Certification possibilities. ● Hardware design. ● Software programming: ETS3.

● This course should be completed by ● KNX product and solution Basic and ● KNX product and solution Supplementary.

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KNX Product and Solution Training - Basic ● Location: Merten in Wiehl, Germany ● Dates: see training catalogue ● Duration: ● Monday 12:30 (incl. lunch) to Friday 15:00

● Prerequisite knowledge ● KNX Certification (ETS knowledge) is mandatory


● Trainer: Tomas Nordström, ● Registration: Christine Grabolle [email protected] with copy to [email protected]

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KNX Product and Solution Training - Basic Get to know the “Schneider KNX solution building stones” ● Mix between theoretical presentations and practical exercises with original devices (approx 40% / 60%) ● All major disciplines are covered ● Switch, dimming, blind and temperature control, automatic and manual control, central functions and scenes

● The participants will… ● learn the scope of Schneider KNX product range ● learn the main functions/features of each product ● learn the easiness of saving energy with KNX ● learn how to configure products with ETS to create solutions according to customer demands (function description) ● learn how to test, analyse and correct solutions on live training panels using ETS Schneider Electric


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KNX Product and Solution Training - Supplement. ● Location: Merten in Wiehl, Germany ● Dates: see training catalogue ● Duration: ● Tuesday 09:00 to Thursday 15:00

● Prerequisite knowledge ● KNX Certification (ETS knowledge) is mandatory


● Trainer: ● Tomas Nordström, Joachim Dröscher

● Registration: Christine Grabolle [email protected] with copy to [email protected]

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KNX Product and Solution Training - Supplement.

● Mix between theoretical presentations and practical exercises with original devices (approx 40% / 60%) ● Focus ● Deeper knowledge of special KNX products ● Advanced solutions for lighting, blind and temperature control and monitoring

● The participants will… ● learn how to use special features of the KNX products ● learn the easiness of saving energy with KNX ● learn how to configure products with ETS to create solutions according to customer demands (function description)

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KNX Certified tutor training ● Location: Merten in Wiehl, Germany ● Dates: to be decided ● Duration: ● 5 days

● Prerequisite knowledge ● KNX Certification (ETS knowledge) is mandatory ● KNX product training

● Max. number of participants: 10 ● Trainer: ● Trond Høyem

● Registration: Christine Grabolle [email protected] with copy to [email protected]

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KNX Certified tutor training ● Will be offered from Q3 2010 (certification of training centre needed) ● Strictly for Schneider employees ● Participants that passes the exam will be certified tutors and will be allowed to do KNX ETS3 certification training. ● Need to score at least 60% on the exam to become a tutor

● The training is only theoretical

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KNX Introduction

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