1. Standards Certification Education & Training Publishing Conferences & Exhibits What Process Control Professionals Think About Wireless Analysis of an ISA100 and Control Magazine Survey October 07 ISA Expo – Houston, Texas Paul Sereiko, Dick Caro

2. Speaker Background Paul Sereiko President and CEO, AirSprite Technologies Co-chair, ISA-SP100 Marketing Working Group HART Communication Foundation, Marketing Group Contact –psereiko@airsprite.compsereiko@airsprite.com –508.281.2720

3. Agenda Background Use Case Interviews Control Magazine Survey Summary and Conclusions

4. Background Understand user needs for wireless automation in the plant –Guide ISA100 standard development –Educate users –Guide wireless suppliers Use case interviews plus Control readership survey Information collected –Application types –Network characteristics –Plant and enterprise integration –Reliability and security

5. Background Almost 500 use case and survey responses as of May 2007 Credits –Written by Walt Boyes (Control) & Paul Sereiko (AirSprite) –Special thanks to: Jose Gutierrez (Emerson), Dave Kaufman (Honeywell), ISA, Cullen Langford, Robert Shear (Dust Networks), Dick Caro (CMS), Mike Dow (Freescale), and Andy Bent (AirSprite)

6. Agenda Background Use Case Interviews –Structure –Sources –Sizing –Node spacing –Data timing Control Magazine Survey Summary and Conclusions

7. Use Case Structure Site Description: Where wireless is to be deployed –Oil refinery –Food processing plant –Paper mill –Train car –Etc… Application: What a wireless solution accomplishes –Tank level monitoring –Perimeter security monitoring –Etc… Tasks: How individual tasks are accomplished and required type and quality of service –Periodic reporting of monitored values –Alerting and alarming –Device installation and commissioning –Device diagnostics and maintenance –Etc…

8. Use Case Template

9. Use Case Sources - 1

10. Use Case Sources - 2

11. What Have We Learned from the Use Cases? There are three kinds of lies: lies, damned lies, and statistics.There are three kinds of lies: lies, damned lies, and statistics. –Benjamin Disraeli (1804 - 1881)Benjamin Disraeli Statistician: A man who believes figures don't lie, but admits that under analysis some of them won't stand up either.Statistician: A man who believes figures don't lie, but admits that under analysis some of them won't stand up either. –Evan Esar (1899 - 1995), Esar's Comic DictionaryEvan Esar Statistics: The only science that enables different experts using the same figures to draw different conclusions.Statistics: The only science that enables different experts using the same figures to draw different conclusions. –Evan Esar (1899 - 1995), Esar's Comic DictionaryEvan Esar

12. A Few Sample Statistics Current Database –Included Use Cases: 26 completed use case in proper format:

13. Site Sizes (log) 100,000 m 2 = 24 acres Many sites are in the 10-20 acre range

14. Node Spacing Implications: ISA100 should specify to assure 30+ meter range in obstructed environments. For longer ranges the standard should consider requirements for an “SP100.11a High Power” radio. Commentary: Spacing varied widely… Small spacing needs typify high- volume manufacturing (discrete). Large spacing is for massive outdoor areas like wind farms, and drilling fields. Sweet Spot

15. Timing of Wireless Data Commentary: Rate at which data changes cluster nicely around three time intervals-milliseconds, seconds, and multiple minutes.

16. Control Cases vs. Monitoring Cases Commentary: As expected monitoring cases require a much “slower” network than control cases. On average: -4 times slower expected change of data intervals -6 times slower desired reporting intervals -27 times slower latency !

17. Agenda Background Use Case Interviews Control Magazine Survey –Participants –Coverage needed –Wireless vs. wired usage –Wireless application candidates –Reliability & Security –Node spacing –Battery life Summary and Conclusions

18. Control Magazine Survey Summary Questions mirrored use-case interview questions Distributed to LARGE databases: –ISA 100,000+ –Control Magazine +45,000 Posted on large company web sites –Emerson –Honeywell –Yokogawa Posted on industry pundit blogs –Walt Boyes –Gary Hintchell

19. Who Participated in the Online Survey? If ‘other’ category were included Field Device manufacturers and Petroleum industries would dominate ….

20. “Other” Respondents

21. Wireless Coverage Needed to be Effective Commentary: Hotspot coverage with growth via “tiling” seems most practical.

22. Multi-Vendor Environment Dominates

23. Wireless Sensing Almost Non-Existent Today

24. Multiple Integration Paths Implications: Support of MULTIPLE protocols and MULTIPLE connection methods is critical. 2-wire still dominant physical interface within installed base.

25. Alerting and Monitoring are Overwhelming Candidates for Wireless Systems

26. Reliability & Security are Critical Factors Reliability & Security = Important Topics 66.4% Data Reliability will affect use of wireless 54.4% Security will most influence decision

27. Node Spacing – Online Survey Greater than 0, but <= 5 Meters BinFrequency 00 513 2122 5122 1019 2009 4004 8007 16007 More3 Commentary: A broader base of long range applications was found in this sample than in the use case interviews 200 400 800m Implications Supports lower power and long range radio ISA100 option from prior slide Sweet Spot

28. Expected Battery Life Control Magazine Use Case Interviews Commentary: Significantly different results from the two surveys. Possible bias from integrators and field device manufacturers in Control Magazine. Implications: May be flexibility in battery life requirements. Opportunity for vendor differentiation.

29. Agenda Background Use Case Interviews Control Magazine Survey Summary and Conclusions

30. Summary: Using The Data 84.8% Wireless will be used for monitoring 48.6% Used for alerting 24.6% / 23.2% Used for low-speed control [>2 sec cycle time] 13% Used for high-speed control 90.7% Expect devices powered by batteries 72% Line Power, 56.8% 4-20mA current loops 37% Exact time measurement is taken w/in 1 sec 18% Notified between 10 secs and 1 minute 42.6% Encryption should be required 64.8% Message authentication should be required 64.3% Device authentication should be required 71.1% Send data to digital controls 54.7% Send data to PLC’s Must cooperate with Fieldbus protocols –76.2% Must cooperate with Ethernet –50% Modbus –38.9% Foundation Fieldbus –18.3% Profibus PA

31. Top Conclusions Opportunity: Non-existent wireless sensing is opportunity for end users, vendors, and emerging standards Getting started: Hotspots and tiling looks practical Interoperable: Multi-vendor instrument facilities dominate – wireless standards should be of high value Integration: Multi-paths needed – especially to DCS Applications: Monitoring/alerting of greatest interest Reliability and security: Critical factor for emerging standards and vendors Power: Battery life expectations vary – vendors can differentiate

32. Thank you Paul Sereiko AirSprite psereiko@airsprite.com 508.281.2720