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Siemens SIMATIC NET PROFIBUS User Manual

Siemens SIMATIC NET PROFIBUS
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Contents
iii
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
Contents
1 PROFIBUS NETWORKS 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Local Area Networks in Manufacturing and Process Automation 1-2. . . . . . .
1.1.1 General Introduction 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.2 Overview of the SIMATIC NET System 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Basics of the PROFIBUS Network 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.1 Standards 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2 Access Techniques 1-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.3 Transmission Techniques 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.4 Transmission Techniques According to EIA Standard RS-485 1-10. . . . . . . . .
1.2.5 Transmission Techniques for Optical Components 1-12. . . . . . . . . . . . . . . . . . .
1.2.6 Transmission Technique for Wireless Infrared Technology 1-14. . . . . . . . . . . . .
1.2.7 Transmission Technique for PROFIBUS-PA 1-15. . . . . . . . . . . . . . . . . . . . . . . . .
2 Topologies of SIMATIC NET PROFIBUS Networks 2-1. . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Topologies of RS-485 Networks 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.1 Components for Transmission Rates up to 1.5 Mbps 2-3. . . . . . . . . . . . . . . .
2.1.2 Components for Transmission Rates up to
12 Mbps 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Topologies of Optical Networks 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2.1 Topology with Integrated Optical Interfaces 2-6. . . . . . . . . . . . . . . . . . . . . . . . .
2.2.2 Topologies with OLMs 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2.3 Combination of Integrated Optical Interfaces and OLMs 2-13. . . . . . . . . . . . . .
2.3 Topologies of Wireless Networks 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Topologies with PROFIBUS-PA 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Connectivity Devices 2-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.1 DP/DP Coupler 2-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.2 Connecting to PROFIBUS-PA 2-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.3 DP/PA Coupler 2-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.4 DP/PA Link 2-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.5 Connecting PROFIBUS-DP to RS-232C 2-28. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.6 Connecting with the DP/AS-Interface Link 65 2-30. . . . . . . . . . . . . . . . . . . . . . .
2.5.7 Connecting with the DP/AS-Interface Link 20 2-33. . . . . . . . . . . . . . . . . . . . . . . .
2.5.8 Connecting PROFIBUS-DP to instabus EIB 2-36. . . . . . . . . . . . . . . . . . . . . . . . .
3 Configuring Networks 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Configuring Electrical Networks 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1 Segments for Transmission Rates up to a Maximum of 500 Kbps 3-3. . . . . .
3.1.2 Segments for a Transmission Rate of 1.5 Mbps 3-4. . . . . . . . . . . . . . . . . . . . .
3.1.3 Segments for Transmission Rates up to a Maximum of
12 Mbps 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4 Configuring Electrical Networks with RS-485 Repeaters 3-9. . . . . . . . . . . . . .
3.2 Configuring Optical Networks 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.1 How a Fiber-Optic Cable Transmission System Works 3-12. . . . . . . . . . . . . . .
3.2.2 Optical Power Budget of a Fiber-Optic Transmission System 3-14. . . . . . . . . .
3.2.3 Cable Lengths for Plastic and PCF FO Paths 3-17. . . . . . . . . . . . . . . . . . . . . . .
3.2.4 Calculating the Power Budget of Glass Fiber Optical Links with OLMs 3-18. .

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Siemens SIMATIC NET PROFIBUS Specifications

General IconGeneral
BrandSiemens
ModelSIMATIC NET PROFIBUS
CategoryNetwork Hardware
LanguageEnglish

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