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SP100 Conference Call Notes – Tuesday, 12 April 2005 Co-Chairman, Richard Sanders, welcomed the participants to the call at 8:00 am eastern time; Wayne Manges was unable to participate. Those participating identified themselves: Dick Caro, Rob Conant, Jack Curtin, Kouji Demachi, Lois Ferson, Peter Fuhr, Patrick Gonia, Jose Gutierrez, Toshi Hasegawa, James Jamison, David Kaufmann, Patrick Kinney, Gene Lambert, Jie Li, Anoop Mathur, Gregory Murphy, Tom Phinney, Damien Roberts, Richard Sanders, Ake Severinson, Daniel Sexton, Peter Stein, Jay Werb, John White, Frank Williams, and Marty Zielinski. Ferson asked any participant not listed in the conference call notes to notify her by email. With the concurrence of the participants and Chair, Marty Zielinski added the following item to the agenda under any other business: RF frequency allocation for industrial use – should this topic be brought to the attention of IEC Sector Board 3? Requirements Document – Tom Phinney Phinney informed the committee that at a DOE meeting last week three DOE-funded firms (Honeywell, Eaton and GE) had shared their data on customer wireless requirements. Phinney referred to a proposed taxonomy (slide attached) covering different kinds of wireless use – for example open loop control with high/high alarms, closed loop supervisory control, etc. He stated the approach in developing the requirements draft would be to identify various wireless applications. By defining where future systems need to go, the draft would not be limited to requirements for solutions that exist today. The consensus of those present, particularly those who had attended the DOE meeting, was that this is a good approach. Fuhr stated Manges had developed a similar approach earlier and added he would make it available to the Requirements Working Group for consideration. Phinney stated that his plan was to have weekly conference calls. Members of the three major DOE- funded firms agreed to have a comprehensive document available for review prior to the next full committee conference call. Interested volunteers should contact Phinney at: Tom Phinney Honeywell Automation & Control Solutions, M/S: AZ16/N21 2500 W. Union Hills Drive Phoenix, AZ 85027-5139 USA +1 (602) 313-5989 Desk +1 (602) 313-3211 Fax Email : email@example.com Interoperability/Sensor Networks -- Bill Drake and Peter Fuhr Fuhr reported that Drake was attending a meeting in Portugal and therefore was unable to participate in the conference call. Fuhr also referred to the work that had been discussed at last week’s DOE meeting and posed a number of questions – Should SP100 strive for interoperability at the physical level? Should SP100 address interoperability at the network level? How should proprietary protocols be addressed? Fuhr stated the group’s intent is to focus their effort on the network level. Fuhr stated that prior to the next conference call the Interoperability Working Group would develop a matrix that can be used to identify levels of interoperability and explain why they are chosen. In response to a question on whether or not security and interference issues were to be addressed in this document, Fuhr stated certain levels of security would be addressed but another subcommittee should cover security specifics. Fuhr expressed his opinion that interference issues would best be covered in the Physics of Radio document Fuhr also added that he is working with INTECH staff on a proposed article covering interoperability issues. He suggested the committee might want to seek other ways to publicize their work such as a presence at Sensor Expo. Interested volunteers for the Interoperability Working Group should contact Drake or Fuhr: Bill Drake Peter Fuhr 3e Technologies International Apprion Inc. 700 King Farm Road Suite 600 NASA Ames Research Park Rockville, MD 20850 Bldg 19 PO Box 95; Moffett Field, CA 94083 PH: 1-301-944-1300 PH: 831-588-7558 FAX: 1-301-670-6989 FAX: 408-752-0724 Email: firstname.lastname@example.org Email: email@example.com Physics of Radio – Ake Severinson Severinson stated he would welcome additional participation on his working group. Referring to the draft that had been distributed prior to the last meeting, Severinson said the group intends to focus their efforts on the license free bands and to break the document down into three areas or case studies: First case would cover free space communication under ideal conditions (basics of transmitter and receiver) to establish the basics of radio Second case would address real earth propagation effects (moving objects, multiple path communication, etc.) Third case would address issues related to sharing the spectrum with others (interference, near/far issues etc.) Severinson asked other interested volunteers to contact him: Ake Severinson Omnex Control Systems Inc. Unit 74-1833 Coast Meridan Road Port Coquitlam, BC V3C 6G5 Canada PH : 1-800- 663-8806 FAX: 1-604-944-9267 Email: firstname.lastname@example.org User Guide – Wayne Manges and Anoop Mathur Mathur reported that the scope of their work was well covered by the comprehensive outline distributed earlier and asked for comments from those present. Sexton stated a general concern that there appears to be a lot of overlap between all the documents underway and added it would be useful to have an objective or purpose stated for each document. Mathur responded that the User Guide would be a higher-level document with specifics covered by work done in the other groups. Sanders stated that one of the objectives in having initial or revised drafts posted prior to the next conference call is to clearly identify any overlaps and to also identify any gaps in the committee’s work. Sanders then asked for any preliminary feedback on the proposed wireless assessment tool Manges had distributed. Several members observed it would be difficult to cover all variations and applications in one classification system. It might, however, be very good to include the assessment tool in the User Guide as a “buyer’s checklist”. Doing so would help ensure users make the right decision on wireless implementations; this is critical if wireless is to quickly capture a share of the industrial market. Volunteers for the Users Guide should contact Manges or Mathur: Wayne Manges Anoop Mathur Oak Ridge National Laboratory, Building 3500 Honeywell International PO Box 2008 3660 Technology Drive Oak Ridge, TN 37831-6006 Minneapolis, MN 55418 PH: 1-865-574-8529 PH: 1-612-951-7734 FAX: 1-865-576-2813 FAX: 1-612-951-7438 Email: email@example.com Email: firstname.lastname@example.org Any Other Business Sanders asked for feedback on seeking an RF frequency band allocation for industrial use -- noting that police, fire, and others already have their own bands. WINA had considered this possibility earlier and several members cited the enormity of the task in going before the federal government. Severinson and others felt it would be best to clearly identify solid requirements for industrial applications prior to approaching the US government – the committee needs ammunition and those present concurred this ammunition can be provided by the Requirements Guide. Phinney and others observed that industrial users should be able to manage the bandwidth within their own facility, especially at large plants. Several members raised the issue of global needs; how would global bandwidths be addressed. Since Zielinski had had to leave the call, Ferson stated her understanding was his proposal was to bring this idea up first within the International Electrotechnical Committee’s Sector Board 3 on Industrial Automation – so he was seeking the committee’s input on international acceptance and not limiting his suggestion to the US market only. Several members noted there is a lot of evolution yet to happen in industrial applications and use of the existing spectrum is very sparse to-date. Following a brief discussion, it was agreed this might be a good idea but it was premature to address at this time. Establishment of Working Groups and Schedule for 2005 Projects Manges and Sanders will continue to work with the Project Leaders identified above to ensure there is sufficient representation on each working group and to post a listing of each group’s membership. Sanders and Manges will also begin to develop a liaison matrix for the committee, focusing initially on the various protocols such as Foundation Fieldbus, Hart, etc. Sanders stated that each Working Group should distribute a document for discussion (first draft, more comprehensive outline, etc) to the full committee prior to the next conference call. Future Conference Calls The next full committee conference call will be held on Tuesday, 10 May 2005, from 8:00 am to 9:00 am Central Time. The plan is to continue to hold monthly conference calls of the full committee and interim conference calls of working groups as required. A confirming email will be sent to the SP100 list prior to the 10 May 2005 conference call. Future Meetings The next face-to-face meeting for SP100 will be held in conjunction with ISA/2005 Chicago. Adjournment The conference call concluded at 9:00 AM Central Time. Taxonomy of use of wireless automation networks • Monitoring - Class 5: Predictive maintenance (delayed action) Example: Slightly elevated water temperature causes automobile owner to check coolant level the following weekend - Class 4: Event-based maintenance (near-term action) Example: Engine trouble light causes operator to take automobile to mechanic • Control - Class 3: Open loop control (human in the loop) Example: Driver modulates accelerator position to control automobile’s speed - Class 2: Closed loop supervisory control (automated, non-critical) Example: Cruise control modulates throttle position to control automobile’s speed - Class 1: Closed loop direct control (automated, often critical) Example: Sensed crankshaft angle triggers ignition of appropriate spark plug NOTE: Control includes 1) primary loops and 2) secondary loops that are cascaded as inputs into other secondary or primary loops. In general, primary loops are more critical than secondary loops.
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