ML20070D919

Forwards Revised Point Attribute Library,Per 10CFR50,App,E. Point Attribute Library Addresses Interim Sys Configuration Following Completion of Integrated Plant Computer Implementation

ML20070D919
Person / Time
Site:	Vogtle
Issue date:	07/08/1994
From:	Mccoy C GEORGIA POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LCV-0408, LCV-408, NUDOCS 9407130138
Download: ML20070D919 (11)

Text

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Georgia Power C.K.McCoy P1 t

W WA*" w "'WHL WM July 8, 1994 LCV-0408 Docket Nos. 50-424 50-425 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 Gentlemen:

VOGTLE ELECTRIC GENERATING PLANT EMERGENCY RESPONSE DATA SYSTEM (ERDS)

POINT ATTRIBUTE LIBRARY (PAL) MODIFICATION Vogtle Electric Generating Plant Units 1 and 2 will replace several plant computer systems with a single Integrated Plant Computer (IPC) System. Implementation of the new system is scheduled to begin in mid September 1994 with the replacement of the Unit 1 Emergency Response Facilities Computer System and the Proteus Plant Process Computer System. The equivalent Unit 2 systems are scheduled for replacement in the Spring of 1995.

In accordance with the 10 CFR 50, Appendix E, we are submitting a revised Point Attribute Library (PAL)(See Attachment A). The PAL addresses both the interim system configuration (September 1994 through April 1995) and the final system configuration following the completion of the IPC implementation.

The Integrated Plant Computer System is designed with application and communication software functionally equivalent to the existing Emergency Response Facilities Computer System (ERFCS) which currently supplies data to the ERDS communication computers. The ERDS communication computers will be unaffected by the implementation of the IPCs except for the source of the data.

All IPC software will be verified and validated in accordance with NUREG-0696, Supplement 1 prior to implementation, including those portions which communicate with the ERDS PCs.

We do not plan to conduct any special tests of the ERDS which would transmit data to the NRC oflices following implementation of the IPC since the ERDS PC software is unaffected.

3c, Sincerel,

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C. K. McCoy l

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9407130130 94o70s PDR ADDCK 0500 4

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Page 2 LCV-0408 cc: Ostrgia Power Con 1p3m Mr. J. B. Beasley, Jr.

Mr. M. Sheibani NORMS U. S. Nuclear Regulatory Commissing Mr. S. D. Ebneter, Regional Administrator Mr. D. S. Ilood, Licensing Project Manager, NRR Mr. B. R. Bonser, Senior Resident Inspector, Vogtle IS DSPAl.

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Georgia Po(ver d ATTACIIMENT A VEGP Emergency Response Data System (ERDS)

Point Attribute Library (PAL) Modification LCV-0408 i

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i Page1 Emergency Response Data System (ERDS)

Plant Attribute Library VEGP Units 1 & 2 I. Contacts A.

Survey Coordinator:

Bobby Shewmake Senior Engineer P. O. Box 2625 Birmingham, AL 35202 (205) 868-5150 t

B.

Computer Hardware Specialist:

David B. Middour Senior Engineer Marriott Marquis II Suite 1620 Atlanta, GA 30302 (404) 526-2558 C.

Systems Software Specialist:

David B. Middour l

Bobby W. Shewmake D.

Application-level Software Specialist David B. Middour E.

Telephone Systems Specialist:

Ty Smith -

Telecommunications Supervisor Plant Vogtle P. O. Box 1600 Waynesboro, GA 30830 (404) 826-4200

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Plant Attribute Library 3

VEGP Units 1 & 2 l

f ERDS Communications Description This section is understood, no exceptions are required. The Vogtle ERDS interface will be a " single-feeder" site connection.

III. Selection of Data Feeders

.4 A.

How many data feeders are there (six maximum)?

The Vogtle ERDS interface will be IBM-compatible personal computers running a -

Southern Company Services, Inc program called PC-Link.. This program allows the PC to access both the Unit I and Unit 2 Integrated Plant Computer (IPC) systems. PC-Link will perform all data conversions necessary to conform to the communication protocols given in Appendix B. II. The final configuration is shown in Figure 2.

An interim system configuration, shown in Figure 1, will be valid from September 1,1994 through April 1995. The interim configuration results from a phased implementation of the new Vogtle Electric Generating Plant IPCs during this period.

PC-Link will be considered the only data feeder for the Vogtle ERDS interface.

B.

Identify the selected feeders (etc.)

PC-Link will provide all required categories of data points for both Unit I and Unit l

2.

C.

Which data feeder is the site time determining feeder?

PC-Link will poll either the Unit 1 or Unit 2 IPC clock depending on which unit is involved in the event. This time will be considered the site time for ERDS purposes.

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1 IV. Data FeederInformation General Questions 1.

Identification of Data Feeder

a. What is the name in local parlance given to this data feeder?

This feeder is called the IPC PC-Link. It is fed from the Unit I and Unit 2 Integrated Plant computers. The data transmitted will typically be described by plant personnel as "IPC data." IPC is used as an acronym for Integrated Plant Computer Systems. Plant tag numbers for the personal computers used for ERDS t

communications are A-2701-C5-PCA and A-2701-C5-PCB.

b. Is this the site time determining feeder?

PC-Link will determine the site time from the affected unit's IPC. Thus, the IPC is considered the site time determining feeder,

c. How often will this feeder transmit an update set to the ERDS (in seconds)?

PC-Link will transmit an update data set to the to the ERDS every 15 seconds.

2.

Hardware / Software Environment

a. Identify the manufacturer and model number of the data feeder hardware.

The PC-Link runs on IBM compatible personal computers with an 80386 CPU,33 MIIz, zero wait state,100 Mbyte (minimum) hard drive,1 Mbyte (minimum)

RAM,101 key enhance keyboard, Super.VGA Graphics card and monitor,4 serial ports, and 2 parallel ports.

The Integrated Plant computers which the PC-Link connects to are Digital Equipment Corporation's VAX 4000 Model 100 processors operating under the VMS operating system,

b. Identify the operating system.

The PCs run DOS 5.0, and the IPCs run the VAX VMS operating system.

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c. What method of timekeeping is implemented on this feeder system?

Eastern Standard Time (changing to Eastern Daylight Time as appropriate).

d. In what time zone is this feeder located?

The Eastern Time Zone.

3.

Data Communications Details

a. Can this data feeder provide asynchronous serial data communication (RS-232-C) with full-modem control?

Yes.

b. Will this feeder transmit in ASCII or EBCDIC?

ASCII.

c. Can this feeder transmit at a serial rate of 2400 bps?

Yes.

d. Does the operating system support XON/OFF flow control?

Yes.

1. Are any problems foreseen with the NRC using NON/XOFF to control the transmissions ofdata?

No.

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e. Ifit is not feasible to reconfigure a serial port for the ERDS linkup, (i.e., change the baud rate, parity, etc.), please explain why?

1 The serial port connection will be configured for the proper paramet(rs including c

baud rate and parity.

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f. Do any ports currently exist for the ERDS linkup?

Yes, currently the IPC has sufficient asynchronous serial ports to supply information to the ERDS PCs. Two, of these ports shall be utilized for ERDS (one port for each PC). The ERDS linkap ports (provided on the PCs) will then transmit the required data set to the NRC.

1. If not, is it possible to add additional ports.

N/A.

2. If yes, will the port be used solely by the ERDS or shared with other non-emergency-time users? Give details.

During ERDS activation, the IPC ports to the ERDS PCs will be dedicated solely for the purpose of maintaining the ERDS communication link. In addition, during an Alert or higher emergency, the ERDS PCs will also be dedicated for ERDS use only.-

During non-emergency conditions, the data connedon between the IPC.

computer and the PCs will allow for several analytical functions to be performed on the designated PCs for internal plant u.se only. The PCs will be running an internally developed software package known as "PC-Link."

4.

Data Feeder Physical Environment and Management I

a. Where is the data feeder located in terms of the TSC, EOF, and control room?

The PCs running PC-Link (incorporating the ERDS connection) will be.

located in the TSC Computer Room.

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b. Is the data feeder protected from loss of supply of electricity?

The PCs will be powered from battery-backed inverters.

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c. Is there a human operator for this data feeder?

No.

A human operator activates the ERDS initially but does not contiiluously monitor the system once it is in operation.

1. If so, how many hours a day is the feeder attended?

N/A.

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