KNX/ETS - Primer

Trace KNX history from the 1996 fusion of BCI, AEB, and HSR to the 2006 IEC 14 543-3 international standard, and its evolution from the EIB bus.

The KNX association unites KNX standard developers and manufacturers, with over 500 member companies in 45 countries, to develop the standard and its development tool the IDs.

Explore how KNX replaces extensive wiring with a two-wire KNX bus, enabling switches, actuators, and gateways to communicate for lighting control, scenes, time delays, and central functions.

Explore KNX/ETS media types used in building automation, including twisted pair, power line, radio frequency, and IP networks. Future videos will cover IoT, with devices communicating via IPv6.

Explore the Connex twisted pair KNX-TP cable, its foil, shield, and two twisted pairs; use red/black for data and power, with yellow/white for 24V and 4 kV and 9600 bps.

Explore KNX power line (PL) for retrofit, using existing 230 volt wiring as a communication medium with 1200 bps, phase couplers for three-phase setups, and KNX RF for new projects.

Explore KNX RF for wire-free retrofitting at 868 MHz, featuring devices like pushbutton sensors and actuators, media couplers translating KNX RF to twisted pair, and future KNX RF multi compatibility.

Learn KNX-IP, using standard network infrastructure to connect KNX installations with routers, enabling high-speed, long-distance communication across wired or wireless networks and secure, encrypted telegrams.

Explore KNX media types—twisted pair, powerline, RF 868 MHz, and KNX IP—and compare speeds from 9,600 to 16,000 bps for retrofitting and networked installations.

Explore the KNX components—sensors, actuators, and system components—and learn how push button sensors generate digital telegrams and how actuators perform switching and dimming.

Explore how a push button sensor in the knx/ets system converts presses into telegrams, with long and short presses controlling blinds or dimming, plus optional leds or displays.

Binary inputs convert switching contacts into KNX telegrams for door and window sensors, PLC signals, and outdoor push buttons, with din-rail or box formats and potential-free or 24/230 V options.

Discover KNX physical sensors that convert analog signals into telegrams, including temperature, humidity, brightness, and weather stations. Built-in thresholds trigger blinds or heating actions.

Explore how switching actuators in KNX integrate relays, a logic controller, and a KNX connection to control loads with turn on/off delays and staircase lighting.

Discover how blind actuators differ from switching actuators in KNX, with dual-channel up/down control, data points, and time-based motion measurement, plus key buying considerations (motor type, channels, and datasheet).

Explore dimming actuators for KNX/ETS, including universal and LED-specific options and DALI-compatible devices, focusing on matching load, channel count, and functions like constant light control and human centric lighting.

Learn how the Connex power supply powers the bus with 30 volt DC, includes an integrated throttle for communication, and select a certified supply with margin and diagnostic features.

Explore the line/area coupler in a KNX network, which connects lines or areas, filters telegrams automatically via Aedes parameterization, and reduces traffic by only forwarding needed telegrams.

Connect knx networks to the ip network using ip routers with an rj-45 connector, filtering and converting telegrams between cane twisted pair and cane ip telegrams.

Understand knx interfaces that connect a pc or ets to a knx installation, including usb and ip options for cabinet or network use.

Explore KNX gateways that connect the KNX world to various subsystems like Dali, DMX, and SMI, and learn how ETS maps data points to group addresses.

Explore the KNX network topology across its three layers, from the bottom line supporting 256 devices on twisted pair or RF to the backbone linking 15 areas.

Explore how the line forms the bottom layer of a KNX network, supporting up to 255 devices on a bus wire with power supply, and why splitting lines reduces traffic.

Connect multiple lines in a KNX area with line couplers and a main line, up to 15 lines and 256 devices, each requiring a power supply and galvanic isolation.

Understand the backbone topology of a knx network, linking up to 15 areas with a main line and 256 devices per area. Use ip routers for scalable projects.

Understand the KNX physical address as a three-part topology (area.line.device). Devices obtain this address via programming on the ed6, starting from 15.15.255, with addresses reserved for couplers or IP routers.

Group addresses connect group objects across devices, linking push button sensors to switching actuators. Plan main group, middle group, and sub group structure (two-digit, three-digit, or free) before the project.

Install ETS five by downloading from the mechanics association page, unzip, run the setup, and learn to manage updates, dongle, licenses, and the demo version to begin your first projects.

Explore the ets5 dashboard, manage licenses and apps, and create your first project with a three-level group structure, backbone, and media settings.

Learn how to edit knx ets project settings, secure with passwords and a bcu key, set project and contract numbers, dates, status, and organize logs and files for documentation.

Create a new ETS5 project with the new project assistant, building a ground floor and upper floor with rooms, functions, and central group addresses.

Establish bus communication between the commissioning tool and the KNX network by selecting, configuring, and validating interfaces, including IP tunneling and direct IP options, for reliable ETS connection.

Knx/ets primer explains group and bus monitors for debugging, logging telegrams, and diagnosing network issues, noting group monitor covers typical troubleshooting while bus monitor captures deeper data.

Explore how the ETS diagnostic tools locate and manage devices by unloading, reading device info, and identifying addresses, then use line scans, programming mode, and existence checks to troubleshoot networks.

Learn how to import KNX/ETS device product information using offline catalogs and the online catalog, including language import and online/offline usage options.

Explore KNX/ETS settings: presentation tab, project editing, group address display, undo levels, report logo, project history prompts, startup behavior, and device certificate security.

Learn to configure language, online catalogue updates, market settings, data storage, recovery points, project export, shortcuts, and label printing in ETS five, completing your navigation of the ETS dashboard.

Navigate creating your first ETS project, populate it with devices and buildings, manage topology, reports, and diagnostics, and explore panels, workspaces, and undo tools.

Create a residential building in KNX/ETS, add floors and rooms, assign uses and lines, and organize for topology view and device parameterization with group addresses.

Explore building a KNX/ETS topology by creating and configuring backbone, areas, and lines, switching between twisted pair and IP media, and setting security and line properties.

Import devices into a knx/ets project, assign them to rooms or buildings, and ensure each device receives a physical address by mapping lines and topologies.

Configure device parameters in KNX/ETS by editing addresses, parking, descriptions, and status; explore group objects, their functions (switch, scene, temperature), data types, units, and how priorities shape telegrams.

Create and bind group addresses in KNX/ETS primer, organize main and subgroups for lighting, switches, and blinds, and assign devices to group addresses to enable telegram communication.

Learn to download and parameterize KNX devices in ETS, link group addresses to switch actuators and push button sensors, and optimize provisioning with partial downloads.

Learn to use KNX/ETS reports to generate building, group address, and device reports. Customize parameters, export to PDF or HTML, and view topology and project status.

Explore how to parameterize light switching in KNX using ETS, mapping push button, motion detector, and other devices to one bit data point types and group addresses.

Configure short and long operation modes, group addresses, and rocker or push button controls; apply on/off delays, staircase light timer with pre-warning, and observe diagnostics and LED states.

Explore the theory of implementing feedback in KNX/ETS, showing how actuators, push buttons, and LEDs convey on/off states via group addresses and data points.

Implement and verify a feedback function in KNX/ETS by linking push button sensor to a group address via an external object, using one-bit on/off states and the diagnostics tool.

Explore the theory of blind functionality in knx/ets, detailing devices, group addresses, and how to configure a blind actuator with push button inputs for up, down, and stop.

Implement blind movement using a push button sensor and a switch actuator in a KNX/ETS project, configuring up, down, and stop commands with group addresses and runtime settings.

Explore the one button operation mode for blind movement, using button five to control shutter up and down with long and stop actions, versus the clearer two button approach.

Learn the theory of blind feedback in knx/ets, using a blind actuator and a pushbutton sensor to display the current blind state as a percentage with group objects and addresses.

Implement blind feedback in a KNX/ETS project by adding a push button sensor with display, binding the current blind height to a living room group address.

Learn to set up KNX dimming: choose compatible lights and dimming actuators, configure group addresses and data point types, and map short/long button presses to on/off and dimming commands.

Explore one-button and two-button dimming operation in knx/ets, using a push button sensor to control short and long presses, step dimming, and group addressing.

Learn how a dimming actuator provides feedback on the current dimming value, displaying 0–100 percent on a push button or display via group addresses.

Implement and test dimming feedback in KNX/ETS by configuring a two-button dimming function, mapping the current percent to a push button display, and ensuring updates occur after dimming finishes.

Explore the theory of line couplers in KNX/ETS, showing how a single line splits into multiple lines with separate power supplies, filters, and area communication via filter tables.

Learn to implement KNX line couplers in ETS by splitting a single line into two, configuring the filter table, and routing telegrams between lines and an area with proper addresses.

Understand scenes as predefined switching states that control devices such as lights, blinds, and outlets, activated by short presses and saved by long presses on push-button sensors.

Configure two scenes in the example KNX/ETS project—TV and dining—via the push buttons, linking dimming, blinds, and outlets to scene-driven actions.

Explore alarm objects in KNX/ETS by linking a weather station to blind actuators, using wind, rain, frost, and window alarms with low-priority group addresses to ensure reliable priority handling.

Implement wind, rain, and frost alarm objects from a weather station, bind them to a blind actuator, and display wind speed, brightness, and temperature on a push button sensor.

Learn to configure a KNX/ETS smoke detector as an alarm object with telegrams, optical alerts, and rain-alarm integration, plus display temperature, humidity, and comfort status.

Apply Cain protocol knowledge from the KNX/ETS primer to set up a KNX network, understand which devices are available, parameterize different functionalities, and debug issues in a practical clinic network.