Sel 421 - Page 310

U.A.2
SEL-421 Relay User’s Guide Date Code 20090715
Firmware and Manual Versions
Firmware
SEL-421-2-R127-V0-Z012011-D20090218
SEL-421-3-R127-V0-Z012011-D20090218
➤ Added EPORT port setting so user can disable ports.
➤ Added MAXACC port setting so user can restrict maximum
privileges on a port.
➤ Extended password length from 6 to 12 characters.
➤ Ethernet card firmware (see Tabl e A.2) and manual update (see
Table A. 5).
20090218
SEL-421-2-R125-V0-Z011011-D20090105
SEL-421-3-R125-V0-Z011011-D20090105
SEL-421-R204-V0-Z007007-D20090105
SEL-421-1-R204-V0-Z007007-D20090105
Applies to firmware version R125 only.
➤ Modified LOP logic to include negative-sequence check when
breaker is closed.
➤ Added ability to act as client for up to two remote synchrophasor
units. Time align collected data with local data to permit control
operations using this data.
Applies to firmware version R125 and R204.
➤ Security correction (see www.selinc.com/privacy.htm for details).
➤ Corrected possible bad timestamps in synchrophasor messages
after relay enable.
➤ Corrected issue that could cause Fast SER to stop.
20090105
SEL-421-2-R123-V0-Z010010-D20070223
SEL-421-3-R123-V0-Z010010-D20070223
SEL-421-R201-V0-Z007007-D20070220
SEL-421-1-R201-V0-Z007007-D20070220
➤ Ethernet card firmware (see Tabl e A.2) and manual update only
(see Table A.5).
20081022
SEL-421-2-R123-V0-Z010010-D20070223
SEL-421-3-R123-V0-Z010010-D20070223
SEL-421-R201-V0-Z007007-D20070220
SEL-421-1-R201-V0-Z007007-D20070220
➤ Ethernet card firmware (see Tabl e A.2) and manual update only
(see Table A.5).
20080917
SEL-421-2-R123-V0-Z010010-D20070223
SEL-421-3-R123-V0-Z010010-D20070223
SEL-421-R201-V0-Z007007-D20070220
SEL-421-1-R201-V0-Z007007-D20070220
➤ Ethernet card firmware (see Tabl e A.2) and manual update only
(see Table A.5).
20080110
SEL-421-2-R123-V0-Z010010-D20070223
SEL-421-3-R123-V0-Z010010-D20070223
➤ Ethernet card firmware (see Tabl e A.2) and manual update only
(see Table A.5).
20070914
SEL-421-2-R123-V0-Z010010-D20070223
SEL-421-3-R123-V0-Z010010-D20070223
SEL-421-R201-V0-Z007007-D20070220
SEL-421-1-R201-V0-Z007007-D20070220
➤ Manual update only (see Table A.5). 20070717
Table A.1 Firmware Revision History (Sheet 2 of 9)
Firmware Identification (FID) Number Summary of Revisions
Manual
Date Code
Courtesy of NationalSwitchgear.com