Part 21 Report - 1996-320
LICENSEE: WESTRONICS
SITE: WESTRONICS EN NUMBER:30153
DOCKET: EVENT DATE: 03-12-96
RX TYPE: EVENT TIME: 00:00
VENDORS: NOTIFY DATE: 03-22-96
EMERGENCY CLASS: N/A REGION: 4 STATE: TX TIME: 14:38
OPS OFFICER: LEIGH TROCINE
10 CFR SECTION: CDEG 21.21(c)(3)(i) DEFECTS/NONCOMPLIANCE
10 CFR PART 21 NOTIFICATION REGARDING THE DISCOVERY OF A FIRMWARE
BUG THAT EXISTS IN ASSOCIATION WITH AN ENHANCED MATH PACKAGE ON
WESTRONICS SERIES 3000C AND 3200C CHART RECORDERS
WESTRONICS DISCOVERED A FIRMWARE BUG THAT EXISTS IN ASSOCIATION
WITH THE ENHANCED MATH OPTION OF THE SERIES 3000C FIRMWARE
(VERSIONS 3.0A AND ABOVE) AND THE SERIES 3200C FIRMWARE (VERSIONS
2.0A AND ABOVE). THIS PROBLEM IS CAUSED BY AN OUT OF CONTROL
SOFTWARE POINTER; AND MANIFESTATIONS OF THE BUG INCLUDED CHANGING
OF PRINTED LOG SCALE END POINTS, CHANGING OF PROGRAMMED POINT
OUTPUT SCALES, THE TIME OF 20:XX:XX PRINTED AS 6C:XX:XX IN MARGIN
LOGS, AND THE RANDOM SUPPRESSION OF POINT DATA FROM LOGS AND THE
DISPLAY. THE NOTED PROBLEMS ARE TRIGGERED SPECIFICALLY BY THE
PROGRAMMING AND TRENDING OF LOGARITHMIC POINT TYPES AND LOG
SCALES WITH THE RECORDER IN THE TREND MODE. IF THE INSTRUMENT IS
EQUIPPED WITH THE ENHANCED MATH OPTION AND IF THE CUSTOMER IS NOT
USING THE LOGARITHMIC POINT TYPES AND LOG SCALES, THEN THE NOTED
PROBLEMS WILL NOT APPEAR. THE ENHANCED MATH OPTION REQUIRES THE
PRESENCE OF THE PI100117 OPTION DECODER 'PROM.' INSTRUMENTS NOT
ORDERED FROM THE FACTORY WITH THE ENHANCED MATH OPTION DO NOT
HAVE THE OPTION DECODER 'PROM' INSTALLED AND WILL NOT EXPERIENCE
THE NOTED PROBLEMS. THE PROBLEMS THAT LED TO THE DISCOVERY OF
THIS BUG WERE BROUGHT TO THE ATTENTION OF WESTRONICS ON OR ABOUT
MARCH 12, 1996.
WESTRONICS HAS BEEN ABLE TO DETERMINE THAT SOUTHERN CALIFORNIA
EDISON (SAN ONOFRE) IS IN POSSESSION OF INSTRUMENTS THAT ARE
CONFIGURED WITH THE REQUIRED OPTIONS AND THAT CONTAIN THE
AFFECTED SOFTWARE. THE SINGLE NOTED LICENSEE HOLDER HAS RECEIVED
NOTIFICATION BY WESTRONICS.
(REFER TO THE HOO LOG FOR THE CONTACT'S ADDRESS AND TELEPHONE
NUMBER.)
Page Last Reviewed/Updated Wednesday, March 24, 2021