Page 14 - Basic Course

KNX BASIC COURSE

Table of contents

0 Definition...................................................................................................................... 3
1 Minimal structure of a KNX TP installation ................................................................... 4
2 Addressing................................................................................................................... 5

2.1 Individual address................................................................................................6
2.2 Group address .....................................................................................................7
2.3 Configuration steps............................................................................................11
2.4 Function after commissioning stage .................................................................. 12

3 Group object ..............................................................................................................13
4 Useful data of a TP telegram ..................................................................................... 14
5 Standardised datapoint types .................................................................................... 15

5.1 On/Off (1.001) ....................................................................................................16
5.2 Functional block „Shutter and blinds actuator - basic“ ....................................... 17
5.3 Functional block „Dimming“ ............................................................................... 18

5.3.1 Switching - On/Off (1.001) .............................................................................. 18
5.3.2 Relative dimming (3.007) ............................................................................... 18
5.3.3 Absolute dimming – Scaling (5.001) .............................................................. 19

5.4 2-octet float value (9.0xx) ................................................................................... 19

6 TP bit structure .......................................................................................................... 20
7 Telegram collision......................................................................................................21
8 Symmetrical signal transmission................................................................................ 22
9 Superimposing data and supply voltage .................................................................... 23
10 Connection of the power supply unit to the TP bus ................................................... 24
11 Cable lengths ............................................................................................................. 25

11.1 Cable length between TP power supply unit – TP bus device ........................... 26
11.2 Cable lengths between two TP bus devices ...................................................... 27
11.3 Total cable length per TP line segment ............................................................. 27

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