Type büS

Contents

3

CONTENTS

1 Symbols used ............................................................................................................................................. 6

2 Introduction ................................................................................................................................................ 7

2.1

Preface .............................................................................................................................................  7

2.2

What is the Bürkert system bus (büS/EDIP)? ...................................................................................  7

2.3

For whom is this Design Guideline intended? ..................................................................................  7

2.4

What is the purpose of the Design Guideline? .................................................................................  7

2.5

Bürkert quality standard ...................................................................................................................  7

3 Creating a rough project plan .................................................................................................................... 8

3.1

Block diagram, devices, postion, protocols .....................................................................................  8

4 Getting to know the basics of a büS infrastructure – accessories, cables, pin assignment .................. 9

4.1

What is the purpose of the various accessories...............................................................................  9

4.2

Accessories ......................................................................................................................................  9

4.2.1

Y-connector ......................................................................................................................... 9

4.2.2

Passive junction box .......................................................................................................... 10

4.2.3

Gender changer ................................................................................................................. 10

4.2.4

Termination ........................................................................................................................ 11

4.3

Cable configuration ........................................................................................................................  11

4.3.1

Characteristic impedance and cables standards .............................................................. 11

4.3.2

Connecting cables ............................................................................................................. 11

4.3.3

Extension cables................................................................................................................ 11

4.4

Pin assignment ...............................................................................................................................  12

4.4.1

M12 connector male, 5-pin (A-coded)............................................................................... 12

4.4.2

M12 connector male, 8-pin (A-coded)............................................................................... 12

4.4.3

Terminal block, 5-pin ......................................................................................................... 12

4.4.4

Terminal block, 4-pin ......................................................................................................... 13

5 Getting to know the büS topologies........................................................................................................ 14

5.1

What is a bus topology and why do you need it? ..........................................................................  14

5.2

Common terms of bus topology.....................................................................................................  14

5.2.1

Trunk line ........................................................................................................................... 14

5.2.2

Stub line ............................................................................................................................. 14

5.2.3

Overview of cable lengths.................................................................................................. 14

5.2.4

Example ............................................................................................................................. 14

5.3

Which topologies are recommended? ...........................................................................................  15

5.3.1

Line topology (daisy chain) ................................................................................................ 15

5.3.2

Line topology with stub lines ............................................................................................. 15

5.3.3

Star topology ..................................................................................................................... 16

5.4

Which topologies are NOT recommended? ...................................................................................  16

5.4.1

Tree topology..................................................................................................................... 16

5.5

Which topologies are NOT permitted .............................................................................................  17

5.5.1

Ring topology..................................................................................................................... 17

6 Detailed project plan 1 ............................................................................................................................. 18

6.1

Floor plan........................................................................................................................................  18

6.1.1

Network with a junction box .............................................................................................. 18