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31 Cards in this Set
- Front
- Back
What does a KNX system require? |
1. Power supply. 2. Sensors. 3. Actuators. 4. The BUS. |
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Power supply |
Used for the power of the installation. |
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Sensors |
(Push buttons, thermostats, air speed meters) generate commands as telegrams ( Send signal as telegrams) |
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Actuators |
(Swith relays for lights, blinds) that receive the telegrams and perform a certain actions. |
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The bus |
Connects all sensors and actuators. |
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KNX application |
Lightning, blinds and shutters, security, energy managment, HVAC, monitoring, remote, metering, audio/video control, appliances. |
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What is the most common transmission medium in KNX ? |
Twisted pair. |
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Backbone Area 15 Line 4 Segment 3 Line repeater Backbone 15 Area 15 Line4 Segment 3 Line repeaterEach segment 64 if there is Line repeater 63 15 Area 15 Line4 Segment 3 Line repeaterEach segment 64 if there is Line repeater 63 Each segment 64 if there is Line repeater 63 |
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It is possible to connect up to 15 areas to a backbone. Singe areas are connected to the backbone line via a backbone coupler (BC). |
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Individual Address (Physical Address) |
Each device connected to a certain topology needs to be uniquely identified by an address. |
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Individual Address (Physical Address) |
It services to identify clearly the bus device and described its location within the topology. |
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What are the parts of Individual Address (Physical Address) ? |
The first corresponds to the area number. Where the middle part is the line number. The final part is for the device number in the line. |
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What are the three structures(formats) to describe the group address? |
1. Three-Level Structure 2. Two-Level Structure 3. Free Structure |
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Automation |
A technology by which a process is performed with minimal human assistance. |
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Application of automation |
1. Stabilization of ships, cars, air planes 2. Controlling machinery operation 3. Telephone network |
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Advantage of automation |
1. Less cost 2. Less human assistance 3. High production and high efficiency 4. Less risks 5. Saving time 6. Accurate 7. Easy life |
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KNX |
One type of automation systems, used to control many devices in order to do different tasks via sensors and actuators. |
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Bus |
To exchange the sing b/w the sensors and actuator. |
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Protocol |
When devices communicate with each other, there are set of rules and instructions that each device must follow. |
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Sensor |
Send signal via bus. |
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Actuator |
Receive the signal to do certain action. |
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Line coupler |
Connect the line to the main bus. |
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KNX has a version called ETS , what is referred to ? |
Engineering Tool Software |
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There 4 different types of versions available of ETS program. Mention. |
1. Demo 2. Lite 3. Professional 4. Supplenantary version |
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Demo |
Max. Three devices per project. |
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Lite |
Max. 20 devices per project |
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Proffetional |
No restrictions as regards number of devices. |
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Supplementary |
It is intended as an additional license for the professional full version. |
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Protocol |
When devices communicate with each other, there are a set of rules and instructions that each device must follow. |