NUREG/CR-4199, Forwards Two 3-1/2 Inch Diskettes Containing Dma Demonstration & Data Files That Are Part of Work Associated w/NUREG/CR-4199 & Table Describing Files. W/O Encls

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Forwards Two 3-1/2 Inch Diskettes Containing Dma Demonstration & Data Files That Are Part of Work Associated w/NUREG/CR-4199 & Table Describing Files. W/O Encls
ML20147G903
Person / Time
Issue date: 03/11/1997
From: Coffman F
NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
To: Ashmore B
External (Affiliation Not Assigned)
References
RTR-NUREG-CR-4199 NUDOCS 9703280357
Download: ML20147G903 (2)


Text

V March 11,1997 Mr. Brad Ashmore CINA, Inc.

P.O. Box 4872 Mountain View, CA 94040

Dear Mr. Ashmore:

I Enclosed are two 3-1/2 inch diskettes: one containing the DMA demonstration, l another containing data files that are part of.the work associated with l NUREG/CR-4199. Also, enclosed is a table describing the files. '

Because our focus is safety, there is a request that is the same as one made on the original work. If a real safety problem is identified in your analysis of this data, please notify us before you report your results in' any public forum. We would assure that it is a safety problem and, if so, notify the utility.

We are currently not funding work on DMA, but we are looking for improved ways (including tools) to regulate fault-tolerant systems. We have looked for tools to assist NRC reviewers in evaluating the quality of software and hardware for use in nuclear power plant safety systems. I am interested in what you are developing and will share your website with others here.

Sincerely,  ;

/S/

Franklin Coffman, Chief Control, Instrumentation, '

and Human Factors Branch Division of Systems Technology ,

Office of Nuclear Regulatory Research LU O

Enclosures:

As stated b llSTRIBUTION: CIHFB R/F, FCoffman, TKing CF (w/ Encl .) - T-5C3 [Yd N TDRl'(w/ Encl .) h N / l V A: ASHMORE.LTR Disk: FC #3 Te receive a copy of this document, indicate in the box: "C" = Copy without attachment / enclosure "E" = Copy with attachment / enclosure "N" = No copy 0FFICE CIHFB/ DST Alf DST;DD,,- l l NAME FCoffman/tr King / M DATE 3 / // /97 3 /// /97 _

0FFICIAL RECORD COPY (RES File Code) RES MN

[ 3 9" NBC [n 2 Si55IEE S Y E GOA1AO 9703280357 970311 5 -41 PDR

i Enclosure Description of Data Files Diskette label: Frank Coffman (301-415-5698)

Diskette: Double-sided, high-density 3.5 inch MS-DOS formatttJ/1.44MB The diskette contains 8 data files, with a header and trailer for each data file. The data files appear to be blocked at 480 bytes and 80 byte records.

No attempt has been made to modify the data by adding end-of-record characters. However, the two binary output files have been padded in the diskette. Persons wishing to use the data copy on diskette must extract data into block and record format appropriate for the system being used.

Data appear to be consistent with information provided by the owner from http://www.cina.com/ snapshot.htm -

I NO. SIZE I FILE CONTENTS 2800 1 lPETE.DAl input Data (RWST.P5 l') '

2 2880 lADJ2.DAT Input Data (2 3 1) 3 2400 lVARIABl.DAT Input Data (VARIABLES = 29;)_ i  ;

4 177600 OUTPUT 1.DAT Binary Ouput Data 5 6000 EXPETE.DAT- Input Data (RWST,P5.1) l 6 6080  !

ADJ3.DAT Input Data (56 2 3 1) I 7 4560 VARIAB2.DAT Input Data (VARIABLES = 56) 8 349840 CUTPUT2.DAT Binary Ouput Data I

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