U-600648, Responds to NRC Re Establishment of Emergency Communications Capability Known as Emergency Response Data Sys (Erds).Util in Process of Evaluating ERDS Requirements. Preliminary List of Plant Data for ERDS Encl

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Responds to NRC Re Establishment of Emergency Communications Capability Known as Emergency Response Data Sys (Erds).Util in Process of Evaluating ERDS Requirements. Preliminary List of Plant Data for ERDS Encl
ML20237D131
Person / Time
Site: Clinton, 05000000
Issue date: 07/21/1986
From: Spangenberg F
ILLINOIS POWER CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20235G519 List: ... further results
References
FOIA-87-737 U-600648, NUDOCS 8712230064
Download: ML20237D131 (9)
v • d • e


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. U 600648 j L30-86(07-21)-L

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,l /LLIN0/S POWER COMPANY l ./ cuNToN rowr.n sTAfloN, P.o. sox 678, CUNTON, ILLINOIS 61727 f

i l July 21, 1986 I

Docket No.30-461 i

a j Mr. James G. Keppler j Regional Administrator, Region III j U. S. Nuclear Regulatory Cocaission p 799 Roosevelt Road j ,

Glen Ellyn, Illinois 60137 l

Subject:

Clinton Power Station (CPS)

! Emergency Response Data System j Data Parameters and Procccol

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Dear Mr. Keppler:

1 i

The NRC's intent to establish emergency communications capability with CPS is documented in the NRC letter dated April 25, 1986. This capability, known as the Emergency Response Data System (ERDS), provides for the transmission of key plant parameters via computer communications j link.

l ,/ Illinois Power is in the process of evaluating the ERDS re.quirements for CPS. The purpose of this letter is to provide to the NRC Staff a preliminary list of plant data and communications protocol for the CPS Emergency Response Data System as determined from this

evaluation to date. Attachment 1 contains the CPC computer data list for ERDS. Attachment 2 describes the CPS protocol for data transmis-sion. Attachment 3 describes the format of the transmitted ERDS system.

l A final description of the CPS Emergency Response Data System will be

, provided to you following the NRC Staff's visit to CPS, per your April

25, 1986, letter.

5 If I can be of further assist.ance to you in this matter, please l

notify me.

Sincerely yours, D

%a P. A. pan aberg Manager - cens g and Safaty gfr N

TLR/pjr 8712230064 PDR FOIA 87 SHOLLYB7-737 PDR-3 Attachnent cc: Mr. B. L. Siegel, NRC Clinton Licensing Project Manager q NRC Resident Office 1111ttei a h = e n t of Nuclear Safety

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  • ATTACHMENT 1 CLINTON POWER STATION ERDS DATA DESCRIPTION

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l Parameter Computer Point Reactor Pressure RP-DA201 l1 RP-DA202

,, Reactor Water Level , B21DA002 ll NB-DA401 l NB-DA402

.j . NB-DA403 f.i Feedwater Flow (core flow) B33-NA001 i

l Neutron Flux-Startup Range C51DA001 A (Source Range Monitors) C51DA002 l C51DA003 la C51DA004 ij Reactor Coolant Isolation Cooling E51DA001 i

(RCIC) Flow i

High Pressure Core Injection (HPCI) (Not applicable)

Flow Core Spray Flow-High Pressure (HPCS) EP-DA301 Core Spray Flow-Low Pressure (LPCS) LP-DA301 i; . . . _ .

,e V..,1 Low Pressure Coolant Injection (LPCI) E12DA001 Flow E12DA002 RH-DA301

.. Condensate Storage Tank Level CT-BA401 Drywell Pressure B21-DA008 B21-DA009 H Drywell Temperature CM-BA007 i CM-BA008

[1 Bydrogen & 0xygen Concentration

.j CM-BA901]-H CM-BA902  :

21 M CM-BA903]-0 Q(-BA904 s 1 il

' Drywell Sump Level RF-BA301 Floor drain sump flow 1

RE-BA301 Equip drain sump flow 1

j Suppression Pool Temperature CH-BA001

3 - CM-BA002
Q(-BA003 CM-BA004

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Q Suppression Pool Level SM-BA401 SM-BA402 SM-BA403 O bM-BA404

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\.s Process Computer) j Primary Containment Radiation Level CM-BA905)- Drywell

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m-WO8 Containment Process Radiation Monitors to be Supplied

. Heating, Ventilating and Air Conditioning (HVAC) Flow Rate

.] HVAC Noble Gas

.3 HVAC Iodine

) BVAC Beta j Standby Cas Treatment System (SGTS) Flow Rate

'j SGTS Noble Gas i SGTS Iodine

! SGTS Beta

l. Liquid Rad Waste Flow Rate .

Liquid Rad Waste Effluent, Gannsa Plant Service Water Flow Race-Plant Service Water Effluent, Gamma e

Meteorological Data to be Supplied i

Wind Speed at 10 Meter and 60 Meter heights

, Wind Direction at 10 Meter and 60 Mater heights

'2 Temperature at 10 Meter and 60 Meter heights Dewpoint at 10 Meter height l?

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'j ATIACHMENT 2 CLINTON POWER STATION I i l ' [#  :

ERDS TRANSMISSION PROTOCOL a

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Communications Protocol , j

.j ASCII Asynchronous, 8 bit, no parity,1 start bit, I stop bit H 1200 - 9600 Baud-q j Data Requisition LI j ERDS input would be obtained from the Plant Buffer Computer Data Link Lj System, located in EOF and connected dirsetly to Process Computer by Fiber l .) Optical Data Link System.

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H Data Transmission i

0 j Commercial /or dedicated line .

Data Collection Dats to be sent every 10 minutes on the 5 minute mark.

i Control Located in EOF building, system is up all the time, modem could be switched

() on when required and system transmission initiated.

l Data validation / Signal Processing I Analog Signals L Eardware Checking j Offset Correction K Gain Compensation Digital Filtering L,8 Reasonableness Limit Check

[J Data Compression

,., Calibration Correction 1 Drift Testing fj Conversion to Engineering Units

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q Digital Signals >

q Input Status Change lj Group Failure

[ Change of State a

3 Radiation Monitors

.i Ten of the Radiation monitor signals have back-up signals that can be i

transmitted.

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ATTACEMENT 3

, T CLINTON POWER STATION l

-\ l I ERDS DATA FORMAT 1 l

Each message will consist of the following 4 groups of information, in the order j specified: j i

a. 16 characters of header information:

's 1 start of header character '/' -

2 station identification characters 'CP' ,

i 1 reactor number character I decimal point character '.'

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ll 6 date characters (YYMMDD) if I decimal point character '.'

li 4 24-hour clock time characters (HEMM) ft Examole: Header for Clinton 1 on June 1, 1986 at 0410 i hours: / cpl.860601.0410 l

b. a fixed number of analog point data strings, in a prespecified order (not necessarily alphabetical). Each string will contain 22 characters, as follows:

h; 8 point ID characters forming a unique string

. . 10 point value characters (+9.000E299)

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4 point status characters (bitmapped - see below)

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Example: Analog point RX-PR008 at a value of +925,000 with normal status: RX-PR008+9.250EM 50000

c. a fixed number of digital point data strings, in a prespecified order

. (not necessarily alphabetical). Each string v111 contain 12 2 characters, as follows:

t ls 8 point ID characters forming a unique string 4 point status characters (bitmapped - see below) 1 pj Example: Digital point RC-BC801 in alarm, open contact: RC-BC8010001

d. 1 character of trailer information:

l 1 End of Message character ' \' j All analog and digital points sent from Clinton Power Station's process computer ,

will include 2 bytes of status information. No status information can be sent l for those points originating from the Eber11ne system. The status bytes will l i.l3 consist of 16 bits, numbered 0 through 15 from right to left. l e

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,4 The meanings of the process computer analog status bits are as follows:

("! Bit Meaning (if bit set)

O Point in alarm 1 Analog-to-digital conversion overflow 2 Open thermocouple 3 Sensor lov limit exceeded 4 Sensor high limit exceeded

5 Scanner failure 1 6 Significant alarm

_ 7 - Not used -

! 8 Low variable limit calculation on

) 9 High variable limit calculation on

] 10 Substituted value (bit 14 will also be set) j 11(*) 1: High limit exceeded; 0: Low limit exceeded

.j 12 Direction of last point value change i'

13 Point alarm acknowledged 14 Point deleted from processing .

1 15 Point bad 1

(*) Has meaning only when bit 0 is set.

} The meanings of the process computer digital status bits are as follows:

s I Bit Meaning (if bit set) t

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\_, O Point in alarm

1 value of digital point (1 = closed contact)

,j 13 Point alarm acknowledged j4 14 Point deleted from processing 4

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