Practical troubleshooting & problem solving of industrial data communications
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The document provides an overview of industrial data communications technology, covering essential topics such as the OSI model, SCADA systems, and various communication protocols like RS-485 and TCP/IP. It discusses the importance of information transfer, the structure of data frames, and modern solutions such as fiber optics and fieldbus architectures. Additionally, it mentions training opportunities for those seeking further information in this field.
Practical troubleshooting & problem solving of industrial data communications
- 1. Practical Troubleshooting & Problem Solving of Industrial Data Communications Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 2. Topics • Introduction • Modern Instrumentation and Control • OSI Model • Standards • Protocols Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 3. Introduction • Transfer of Information From One Point to Another • Transmitter/Receiver/Link • Serial Links vs Parallel Links • Digital Data vs Analog • Mutual Agreement Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 4. SCADA • Supervisory Control and Data Acquisition System • RTU’s to Master Station • Radio Links /Landlines • Also A Term Used for SCADA Software packages such as Citect,Wonder Ware etc Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 5. OSI Model • Developed by the ISO • Universal Framework for Building A Communications Systems • 7 Layer Model • 3 Layer Model Very Common for Industry • Missing the 8th Layer Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 6. Representation of the OSI Model Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 7. Basic Structure of an Information Frame Defined Sync Byte Destination Address Source Address Data to be Transmitted Error Detection Byte SYNCHRONIZING BYTE Is Used To Synchronize The Receiver. DESTINATION ADDRESS Is Where The Packet Is Going. SOURCE ADDRESS Is Where The Packet Has Coming From. DATA Is The Information Contained In The Packet. ERROR BYTE Is The Result Of The Error Correction Calculation. Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 8. Two Wire Multidrop RS-485 R 1200M (4000 FT) TERMINATION RESISTORS AT BOTH ENDS ONLY A A B Rt Rt B TX TX A A B B RX RX R G G GWG GWG R G TX RX A B A B GWG R G TX RX A B A B GWG - Generator - Receiver - Circuit ground or circuit common - Protective ground or frame ground - Green wire ground or power system ground G R GWG Note: The RS-485 standard documentation leaves out the invertes for the receiver Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 9. Fiber Optic Cable Multimode Core Light Rays Light Ray Cladding Sheath Monomode Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 10. HART Protocol FSK Communications On Top Of 4 - 20 mA Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 11. Profibus Typical Architecture of System Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 12. Foundation Fieldbus • Newest Fieldbus • H1 standard - 31.25kbit/s • HSE - 100Mbit/s • Three layers plus excellent User Layer Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 13. Ethernet 10BaseT MAC = Media Access Control Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 14. TCP/IP • Internet Protocol (IP) • Transmission Control Protocol (TCP) • Application Layer • Three Layer Model • Derived from Internet Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 15. Wireless Communications RS-232 Antenna Antenna Radio Transmitter/ Receiver Radio Transmitter/ Receiver Modem Modem RS-232 Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss
- 16. DO YOU WANT TO KNOW MORE? If you are interested in further training or information, please visit: http://idc-online.com/slideshare Technology www.idc-online.com/slideshare Technology TTrraaiinniinngg tthhaatt Wwoorrkkss