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THE WIRELESS ALTERNATIVE TO EXPENSIVE CABLING

The Wireless Plant of the Future by Graeme Lane USA Sales - ELPRO Technologies www. elprotech .com. THE WIRELESS ALTERNATIVE TO EXPENSIVE CABLING. Instrumentation & control … where is it heading?. No. of tags Information. 1950 1970 1990 2010. 2.

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THE WIRELESS ALTERNATIVE TO EXPENSIVE CABLING

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  1. The Wireless Plant of the Future by Graeme Lane USA Sales - ELPRO Technologies www.elprotech.com THE WIRELESS ALTERNATIVE TO EXPENSIVE CABLING

  2. Instrumentation & control … where is it heading? No. of tags Information 1950 1970 1990 2010 2

  3. Instrumentation & control … where is it heading? Proliferation of information systems 4-20mA  Hart Marshalling cables FF, Ethernet Automation DeviceNet, Profibus et al Alarm systems Pagers, SMS, email 3

  4. Instrumentation & control  Information The largest constraint to collecting information … cost of wiring  wireless The largest constraint to sharing information … data incompatibility  cleverer wireless 4

  5. 105U 105U Instrumentation & control … where does wireless fit in now? FT FI Signal Cable Transducer Indicator FI FT Indicator Wireless I/O Transducer 5

  6. 905U 905U Factory automation … where does wireless fit in now? Data Cable PLC PLC PLC Radio Modem PLC 6

  7. Wireless I/O Radio modems Typical industrial plant or factory • 1995 no wireless • 2002 1 - 2 wireless applications • 2010 100 - 200 wireless applications Can the radio spectrum handle this? 7

  8. Current Wireless Developments Embedded wireless Bluetooth, Zigbee - low power, limited range, good radio duty factor Wireless I/O data bus interface - 900MHz, longer range, good radio duty factor, proprietry systems 802.11+ high data rates - limited range, limited data compatibility, high radio duty factor 8

  9. Re-cap Instrumentation & control  Information The largest constraint to collecting information … cost of wiring  wireless The largest constraint to sharing information … data incompatibility  cleverer wireless 9

  10. Introducing …. The WIB Concept Wireless Instrumentation Backbone 10

  11. The WIB Wireless Instrumentation Backbone Plant-wide wireless instrumentation Factory-wide wireless automation Signal level - measured variables Connectivity - I/O, serial, field bus 11

  12. The WIB Structure WIRELESS J-BOX Field devices - Profibus, Devicenet, HART, Bluetooth WIRELESS J-BOX DCS - Ethernet, Modbus, 802.11 WIRELESS NODE WIRELESS J-BOX Direct transducer connection I/O - discrete, analog, pulse, t/c, RTD WIRELESS J-BOX Outside world - Ethernet, Internet 12

  13. Wireless J-box WIRELESS J-BOX Connections for direct I/O and/or serial devices / field bus Wireless connectivity to all other J-boxes Converts data into neutral radio-friendly protocol 13

  14. Wireless I/O WIRELESS J-BOX I/O - discrete, analog, pulse, t/c, RTD WIRELESS J-BOX I/O - discrete, analog, pulse, t/c, RTD WIRELESS J-BOX I/O - discrete, analog, pulse, t/c, RTD 14

  15. Wireless I/O plus field interface WIRELESS J-BOX I/O - discrete, analog, pulse, t/c, RTD I/O HART, Bluetooth, Zigbee WIRELESS J-BOX WIRELESS J-BOX I/O - discrete, analog, pulse, t/c, RTD 15

  16. Wireless I/O plus system interface WIRELESS J-BOX I/O - discrete, analog, pulse, t/c, RTD WIRELESS J-BOX DCS Modbus Ethernet 802.11 WIRELESS J-BOX I/O - discrete, analog, pulse, t/c, RTD 16

  17. PLC connectivity WIRELESS J-BOX PLC Devicenet PLC Devicenet WIRELESS J-BOX WIRELESS J-BOX PLC Devicenet 17

  18. Data bus connectivity PLC Profibus WIRELESS J-BOX WIRELESS J-BOX HMI Ethernet PLC Devicenet WIRELESS J-BOX WIRELESS J-BOX I/O HART 18

  19. Connectivity to outside world PLC Profibus WIRELESS J-BOX WIRELESS J-BOX HMI Ethernet PLC Devicenet WIRELESS J-BOX WIRELESS J-BOX Internet CDMA / GSM Email 19

  20. Put it all together = WIB WIRELESS J-BOX INTERNET Ethernet PLC Profibus WIRELESS J-BOX WIRELESS J-BOX I/O - discrete, analog, pulse, t/c, RTD PLC Devicenet WIRELESS J-BOX WIB WIRELESS J-BOX WIRELESS J-BOX I/O HART I/O - discrete, analog, pulse, t/c, RTD 20

  21. Wireless J-box Design Features WIRELESS J-BOX Efficient radio communications - low density communications, powerful networking Expandability - station level, network level, world level Security - reliability; “hackers” 21

  22. Efficient radio communications 22

  23. Efficient Radio Comms ISM bands - 900MHz, 2.4GHz, 5.6GHz Compromise - data rate vs distance in a plant/factory environment MHz MB/sec Distance (feet) 900 0.1 3000 2400 0.5 - 10 300 5600 1 - 100 30 23

  24. Efficient Radio Comms A low data rate which works is better than a high data rate which doesn’t  900MHz Wireless instrumentation does not require a high data rate, but does require RF strength 24

  25. Low density communications Wired systems - 95% of info transfer is useless- polling, timed transfers  Exception reporting • Transmit on “change” - min. comms • Transmit immediately on change - fastest response 25

  26. Communications Control Need extra controls to minimize traffic and maximize reliability Contention control - Listen-before-transmit, priorities, error-correction Self checking - Integrity Poll Adaptive messaging Learn from cell-phone systems 26

  27. Powerful Networking 27

  28. 905U 905U 905U 905U Powerful Networking Peer-to-Peer Comms • Each node can talk to any other node • If any node fails, other nodes continue to operate • Multiple comms sessions - e.g. comms A and comms B A B 28

  29. 905U 905U 905U 905U 905U 905U 905U Powerful Networking Private “Cellular” system Auto-routing “Roaming” Self-healing 29

  30. Expandability - station level and network level 30

  31. 905U 905U 905U 905U Station Level Expandability • I/O expansion • Seamless routing of messages for other stations • Connectivity to high speed data buses 31

  32. CONTROL ROOM CONTROL ROOM Avoid the Porcupine Affect If a plant/factory has 100 wireless loops, how many antennas are needed at the control room? Network Level Expandability Expandable Communications - able to communicate to more stations 32

  33. Security - failure to operate / mal-operation 33

  34. Is wireless safe? 34

  35. Security Protection against failure - spread spectrum band - unit addressing and error-checking, re-try features, failure alarms Protection against mal-operation - cross-talk - system addressing, data encryption Failure alarms - self checking system fail to send, fail to receive 35

  36. Security Protection against malicious operation Data encryption Frequency encryption PIN protection on configuration files 36

  37. The WIB Structure WIRELESS J-BOX Field devices - Profibus, Devicenet, HART WIRELESS J-BOX DCS - Ethernet, Modbus, ControlNet WIRELESS NODE WIRELESS J-BOX Direct transducer connection I/O - discrete, analog, pulse, t/c, RTD Re-cap WIRELESS J-BOX Outside world - Ethernet, Internet 37

  38. Wireless J-box Design Features WIRELESS J-BOX Efficient radio communications - low density communications, powerful networking Expandability - station level, network level, world level Security - reliability; “hackers” Re-cap 38

  39. Thank you for attending www.elprotech.com

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