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Course Project Wireless HART

Course Project Wireless HART. For Dr. Samir Ghadhban PREPARED BY AL-SHAHRANI, ABDUL-AZIZ (237391) AL-MUTAIRY, WALEED (236365). OUTLINES. INTRODUCTION NETWORK ARCHITICTURE LAYERS SPECIFICATIONS Physical Layer Data-Link Layer Network Layer Transport Layer CONCLUSION.

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Course Project Wireless HART

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  1. Course Project Wireless HART

  2. For Dr. Samir Ghadhban PREPARED BY AL-SHAHRANI, ABDUL-AZIZ (237391) AL-MUTAIRY, WALEED (236365)

  3. OUTLINES • INTRODUCTION • NETWORK ARCHITICTURE • LAYERS SPECIFICATIONS • Physical Layer • Data-Link Layer • Network Layer • Transport Layer • CONCLUSION

  4. INTRODUCTION • Wireless HART is a Wireless Mesh Network Communications Protocol. • designed to meet the needs for process automation applications.

  5. INTRODUCTION • Wireless HART is a key part of the HART Field Communications Protocol Revision 7 • Existing HART applications (e.g., control systems, PLC's, maintenance tools, and asset management applications)

  6. NETWORK ARCHITICTURE • Wireless HART Field Devices (WFD): • connected to the process or to plant equipment

  7. NETWORK ARCHITICTURE • Wireless HART Gateways: • enable communication between Host Applications and WFD • support one or more Access Points • A Gateway and its Access Points must included in every Wireless HART network

  8. NETWORK ARCHITICTURE • A Wireless HART Network Manager: • responsible for configuration of the network • scheduling communication between Wireless HART devices (e.g., configuring super frames) • management of the routing tables • monitoring and reporting the health of the Wireless HART Network

  9. NETWORK ARCHITICTURE

  10. LAYERS SPECIFICATIONS • Physical Layer: • Maximum data rate (250 kbps) • Operating Frequency (2.4 - 2.48 GHz) • transmit Power is 10dBm (Nominal) adjustable in discrete steps (e.g., 0dBM and others)

  11. LAYERS SPECIFICATIONS • Data-Link Layer: • has long and short addresses • Additional Wireless HART DLPDU specifies a byte which identifies Wireless HART packet types • Bus Arbitration with TDMA using timeslots organized into super frames as 100 timeslots per second

  12. LAYERS SPECIFICATIONS • Data-Link Layer: • Acknowledgement packets include timing information to continuously synchronize TDMA operation across entire network

  13. LAYERS SPECIFICATIONS • Network Layer: • Upstream and downstream graph routing • Provides redundant path routing for maximum reliability and managed latency • Supports Broadcast, multi-cast and uni-cast transmissions.

  14. LAYERS SPECIFICATIONS • Transport Layer: • provides un-acknowledged and end-end acknowledgement of communications • Acknowledged transmissions include automatic retries to confirm successful data transfer • also supports TCP-like reliable block transfers of large data sets

  15. CONCLUSION • Wireless HART provides new capabilities for users to get information on process parameters • The HART Communication Foundation provides worldwide support for application of HART technology

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