ML20216C303

Summary of 980429 Meeting W/Listed Attendees to Present Status of EPRI Programmable Logic Controller Project & Progress on Qualification of Triconex PLC

ML20216C303
Person / Time
Issue date:	05/12/1998
From:	Birmingham J NRC (Affiliation Not Assigned)
To:	Essig T NRC (Affiliation Not Assigned)
References
NUDOCS 9805190199
Download: ML20216C303 (38)

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p+ 4 UNITED STATES lr j NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20666 4001 I

%, , , , , , .May'12, 1998 \

MEMORANDUM TO: Thomas H. Essig, Acting Chief f

Generic issues and Environmental l Projects Branch J Division of Reactor Program Management Office of Nuclear Reactor Regulation FROM: Joseph L. Birmingham, Project Manager Generic issues and Envircnme I .

./ I Projects Branch N. NM%~'

Division of Reactor Program Ma agement Office of Nuclear Reactor Regulation

SUMMARY

OF APRll 29,1998, MEETING WITH TRICONEX AND EPRl/ UTILITY PLC WORKING GROUP On April 29,1998, representatives of Triconex and the EPRl/ Utility PLC Working Group met with U.S. Nuclear Regulatory Commission (NRC) staff to present the status of the EPRI programmable logic controller (PLC) project and progress on qualification of the Triconex PLC.

The objectives of the project are (1) to establish a specification for the qur,lification of a PLC for use in safety related applications at nuclear power plants, (2) qualify PLCs for use, and (3)

Integrate the qualified PLCs into plant-specific applications. The qualification specification has been completed and the Triconex PLC has been selected as the first product to be qualified.

Test plans and procedus are being developed and the tests are expected to be completed in August of 1998. A topics report is planned for issue in December of 1998. Following the project overview by the working group, Triconex described their company makeup and outlined i the design of the PLC and its proposed uses in nuclear applications.  !

The NRC staff asked about the Triconex QA program as regards Part 21 and Appendix B of Part 50 of the Code of Federa/ Regulations. Triconex responded that it hat an Appendix B QA (

program and as the supplier of the PLC would comply with Part 21. NRC staff also asked about the possibility of common mode failure of the PLC software. Triconex replied that although the controller was extremely reliable and did not have a history of common ' mode problems, it would be up to the licensees to meet NRC requirements for diversity in safety applications. Following the formal presentation, a working lavel meeting was held to discuss technical aspects of the 3 j qualification and NRC review efforts.

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T. Essig 2 May 12, 1998 Those who attended the meeting are listed in Attachment 1 and the viewgraphs presented at the meeting are in Attachment 2.

Attachments: As stated cc: J. Troy Martel, P.E.

Director Nuclear Services Triconex Systems, Inc.

4916 FM 1765 LaMarque, TX 77568 Dr. Joseph Naser, Manager EPRI, Instrumentation and Control Energy Conversion Division 3412 Hillview Ave.

Palo Alto, CA 94304-1395 i

T. Essig May 12, 1998 Those who attended the meeting are listed in Attachment 1 and the viewgraphs presented at the meeting are in Attachment 2.

~

Attachments: As stated cc: J. Troy Martel, PI

~

Director Nuclear Services Triconex Systems, Inc.

4916 FM 1765 LaMarque, TX 77568 Dr. Joseph Naser, Manager EPRI, Instrumentation and Control Energy Conversion' Division 3412 Hillview Ave.

Palo Alto, CA 94304-1395 f

DISTRIBUTION: See attached page DOCUMENT NAME: G:\JLB\04-29MTG. SUM' i OFFICE PM/PGEB:DRPM SC/PGEB:DRPM NAME JBirmingham:sw FAksYuIeNbb DATE~ 05/tt/98 M8 05/A /98 OFFICIAL RECORD COPY l

Attendees for NRC Meeting with {

TRICONEX and EPRl/ Utility Working Group April 29,1998 {

j NAME ORGANIZATION Joseph Naser EPRI Bill Wellborn STPNOC William Sotus STPNOC Troy Martel Triconex Dennis Harris Triconex Reid Hogue Triconex Hamilton Fish New York Power Authority {

Valerie Levkov Electricite de France I Patrick Salaun Electricite de France Bruce Geddes Baltimore Gas and Electric David Herrell MPR Associates Ini Rana SNC Joseph Birmingham NRC\NRR\DRPM Jerry Mauck NRC\NRR\HICB Joe Joyce NRC\NRR\HICB James Stewart NRC\NRR\HICB Paul Loeser NRC\NRR\HICB Ken Heck NRC\NRR\HQMB I

I l

1 Attachment 1

EPRI-PLC Utility / NRC Meeting Agenda Location: Rockville, MD - NRC NRR office (One White Flint Plaza)

Date: Wednesday, April 29,1998 - 9AM to 3:00PM AGENDA DETAILS:

Formal Meeting 9.00-10:00AM

1. Introduction - J. Naser (EPRI)

2. Triconex Qualification Project Overview - W. Sotos (STPNOC)

3. Triconex Product Overview - T. Martel (Triconex)

4. Project Status and Expectations - W. Sotos (STPNOC)

5. Technical Issues - W. Sotos (STPNOC)

6. Final Remarks - J. Naser (EPRI)

After the formal meeting has concluded, a working level meeting is planned for the purpose of working through the details of technical issues related to the qualification effort. This working level meeting is scheduled to begin at 10:30AM and conclude no later than 3:00PM.

Working Level Meeting 10.30AM-3:00PM Discussion Topics

1. Specification Variances e Performance Monitoring e SWC

2. Legacy Software

3. SER Review Costs

4. Other Triconex Qualification Topics (time permitting)

5. Other Topics - General (time permitting)

A lunch break will be taken at an appropriate time.

Attachment 2

EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT l

Triconex Platform Presented to NRC NRR Rockville, Maryland By William G. Sotos - STPNOC April 29,1998 1

)

EPRI/ UTILITY WORKING GROUP .

PLC QUALIFICATION PROJECT PROJECT OVERVIEW Project Specific Objectives Phase 1 e Write a Specification for the Qualification of a PLC for use in Safety Related Applications at US Nuclear Power Plants Phase 2 e Qualify PLC's for use in Safety Related Applications at US Nuclear Power Plants Phase 3

• Integrate Into Plant Specific Safety Related Applications 2

___m

. EPRI/ UTILITY WORKING GROUP

~

PLC QUALIFICATION PROJECT PROJECT STATUS AND EXPECTATIONS

• Phase 1 Specification Completed. Waiting for SER to be issued.

• Phase 2 Triconex Product selected as first to be qualified.

~ Work in progress. Expect completion late 1998.

Other platforms being actively considered 3

EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT

. Phase 3 STP to apply qualified Triconex product in EDG engine control application Other applications to follow at other plants

\

4

1 EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT Phase 2 Triconex Qualification Effort e Specification from Phase 1 to be Used e Triconex to Establish a 10CFR50 Appendix B QA Program With Utility Assistance - COMPLETE e Upon Phase 2 Completion, a Qualified PLC is to be Available for Procurement as Safety Related Equipment S

)

EPRI/ UTILITY WORKING GROUP l PLC QUALIFICATION PROJECT Scope of Work - Phase 2 - Triconex Qualification

. Three Major Qualification Tests:

1.EMI

2. Environmental

3. Seismic e Other Qualification Areas FMEA Reliability ESD SWC 1E/Non 1E Isolation Time Response Power Quality Performance Software QA 6

EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT Benefits e Qualified PLC e Available to be Procured as Safety Related

- No Utility Dedication Required e Broad Applicability I e Routine Licensing 7

6 EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT Project Senedule and Status - Phase 2 -

Triconex

. Test Plans and Procedures currently being developed

. Test System design and fabrication is in progress

. Laboratory Testing planned to begin July 1998 and be completed August 1998

. Qualification Reports to be completed by October 1998

. Topical Report to be issued December 1998 8

- . ~

EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT Project Schedule and Status - cont'd

. Draft SER April 1999

. Issue SER September 1999

. First Application at STP October 1999 l 9

y EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT l

, TECHNICAL ISSUES e Generally, the requirements of EPRI TR-107330 will be met

• Several areas where variance with EPRI t TR-107330 will be taken Equipment Capabilities Equipment Performance Monitoring (during testing) 10 1

a

,. . 1 EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT Technical Issues - cont'd Since TR-107330 is generic, equipment capability limitations are not anticipated to 1 be an issue Examples:

e No 24 VAC analog input range e No 15 VDC analog input range e No 10-50 mA analog output range e On/off voltage states different than that specified for discrete outputs e No coprocessor used 11

EPRI/ UTILITY WORKING GROUP .

PLC QUALIFICATION PROJECT Equipment Performance Monitoring e Variance with application of Operability and Prudency Testing before, during, and ,

after laboratory testing will be taken. {

Equivalent alternatives are permitted per TR-107330.

I e Performance of these tests as described in ,

I TR-107330 exceeds the requirements of IEEE 323-1983 and impose substantial j i

barriers to success l

12

__J

EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT Equipment Performance Monitoring -

cont'd e Specific Problem areas:

Performance of full operability tests twice during environmental testing Performance of full prudency tests once during environmental testing Performance of full operability and prudency tests once during seismic SSE testing Performance of full operability tests once during each seismic OBE test if electromechanical de.vicu uader test.

13

EPRI/ UTILITY WO.RKING GROUP .

PLC QUALIFICATION PROJECT 1

Equipment Performance Monitoring -

cont'd l . Specific Problem areas - cont'd:

l Performance of full operability tests once after seismic SSE testing Performance of full operability (except accuracy tests) and a portion of the prudency tests once during EMI/RFI testing Performance of full operability tests once after ESD testing 14

. EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT Equipment Performance Monitoring -

cont'd i Reasons for variance:

• Exceeds IEEE 323-1983 requirements e Each Operability test run estimated ta take approximately 16-24 hours to perforni.

. Each prudency test run estimated to take i approximately 4-6 hours to perform e Adds substantial testing time and project I costs i e Not possible to implement for some tests  ;

e Minimal value added 15

EPRI/ UTILITY WORKING GROUP .

PLC QUALIFICATION PROJECT Equipment Performance Monitoring -

cont'd Proposed Alternative Monitoring Method

. Monitor all inputs, outputs, power supplies, internal diagnostics, and other measurab}e parameters on a continuos basis during testing using appropriate data acquisition and recording instrumentation e Using the monitoring equipment noted above, record baseline perfonnance before and after each test.

• Inputs will be regularly exercised to l obtain appropriate output responses l

16

EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT Equipment Performance Monitoring -

cont'd i

e Full operability and prudency tests will be

]

performed once prior to the initial laboratory tests and once upon completion i of the laboratory tests I 17

EPRI/ UTILITY WORKING GROUP  ;

PLC QUALIFICATION PROJECT l

Equipment Performance Monitoring -

cont'd Reason for Acceptability e Complies with IEEE 323-1983 Section 6.3.1.4 " Monitoring" which states:

"During testing, both the test environment and the equipment's safety function (s) shall be monitored using equipment that provides resolution for detecting meaningful changes in the parameters. Where applicable, measurements to be included are environment, electrical, fluid, and mechanical characteristics, radiological features, and any auxiliary features such as the functions of any switches and feedback devices which provide input to other Class 1E equipment. Data acquisition equipment, as appropriate, shall be calibrated against standards traceable to nationally recognized standards and shall have documentation to support such calibration.

Measurement intervals shall be chosen to obtain th e time i dependence of each parameter."

18

EPRI/ UTILITY WORKING GROUP PLC QUALIFICATION PROJECT Summary

. Generic Qualification of the Triconex PLC is in progress

. Expect to complete in 1998

. Only significant qualification specification variance is for performance monitoring.

. Information will be submitted periodically to assist in NRC review.

. Submit topical report December 1998

. Draft SER April 1999

. Issue SER September 1999

. Implement First System October 1999 19

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