Type büS

Contents

4

6.1.2

Network with Y-connectors ............................................................................................... 18

6.1.3

Mixed network ................................................................................................................... 19

7 Technical know-how ................................................................................................................................ 20

7.1

Termination resistors ......................................................................................................................  20

7.2

Connection for diagnostics ............................................................................................................  20

8 Detailed project plan 2 ............................................................................................................................. 21

8.1

Completion – floor plan ..................................................................................................................  21

8.1.1

Network with a junction box .............................................................................................. 21

8.1.2

Network with Y-connectors ............................................................................................... 21

8.1.3

Mixed network ................................................................................................................... 22

9 Network power supply ............................................................................................................................. 23

9.1

Power segments.............................................................................................................................  23

9.1.1

One power segment .......................................................................................................... 23

9.1.2

Additional power supply .................................................................................................... 23

9.2

Rule of thumb .................................................................................................................................  23

10 Detailed project plan 3 ............................................................................................................................. 24

10.1 Cabling plan....................................................................................................................................  24

10.1.1 Network with junction box ................................................................................................. 24

10.1.2 Network with Y-connectors ............................................................................................... 24

10.1.3 Mixed network ................................................................................................................... 25

11 büS network shielding.............................................................................................................................. 26

11.1 Shielding of EDIP devices ..............................................................................................................  26

11.2 Comparison of shieldings ...............................................................................................................  26

11.3 Network with direct shielded devices.............................................................................................  27

11.4 Network with RC shielded devices.................................................................................................  28

11.5 Network with none shield connected devices................................................................................  29

11.6 Mixed network with various shieldings...........................................................................................  30

12 Best practice instructions ........................................................................................................................ 32

12.1 Termination resistor ........................................................................................................................  32

12.2 Signal reflections ............................................................................................................................  32

12.3 Passive junction box.......................................................................................................................  32

12.4 Diagnostic port ...............................................................................................................................  32

12.5 Baud rate ........................................................................................................................................  32

12.6 büS stick.........................................................................................................................................  32

12.7 Stub lines ........................................................................................................................................  32

12.8 Bus load..........................................................................................................................................  32

12.9 Power consumption........................................................................................................................  33

12.10 Grounding power supplies .............................................................................................................  33

12.11 Shielding of büS network ...............................................................................................................  33

13 büS networks with maximum network expansion .................................................................................. 34

13.1 Line topology ..................................................................................................................................  34