A.3
Date Code 20060320 Instruction Manual SEL-311C Relay
Firmware and Instruction Manual Versions
Firmware
This firmware differs from the previous versions as follows:
SEL-311C-R107-V0-Z004003-D20020703
➤ Corrects behavior introduced in firmware R105,
which, if certain elements were used with the :: operator
in the display point settings (as described in Section 7: Inputs,
Outputs, Timers, and Other Control Logic), caused a
CPU error on the next relay power-up cycle.
20020703
This firmware differs from the previous versions as follows:
SEL-311C-R106-V0-Z004003-D20020603
➤ Modified target logic to require targeted elements to be in the
tripping equation at the rising edge of trip.
➤ Modified behavior when changing to APP = 221C. The text
settings are no longer forced.
➤ Modified behavior when changing back to APP = 311C. The
relay now forces ESV, ELAT and EDP settings to 16.
➤ Made the ID command accessible at Level 0.
20020603
This firmware differs from the previous versions as follows:
SEL-311C-R105-V0-Z003003-D20011205
➤ Added 180-cycle event report option.
➤ Modified input debounce time.
➤ Modified rotating display to include settings values.
➤ Added ELAT and EDP settings.
➤ Modified breaker reset (BRE W) option.
➤ Added Fast SER.
20011205
This firmware differs from the previous versions as follows:
SEL-311C-R104-V0-Z002002-D20010625 ➤ Manual Update Only—See Table A.3 for summary of manual
updates.
20010820
This firmware differs from the previous versions as follows:
SEL-311C-R104-V0-Z002002-D20010625
➤ Modified SEL-311 relays to record consecutive event reports.
➤ Added STA C command.
➤ Modified the SUM command so that the Breaker Status reports
the status from the last row of the event report.
➤ Changed the E21P default setting to 3C in application settings
221G, 221G5, and 221H.
20010625
This firmware differs from the previous versions as follows:
SEL-311C-R103-V0-Z002002-D20010516
➤ Improved overflow supervision for distance elements. 20010516
This firmware differs from the previous versions as follows:
SEL-311C-R102-V0-Z002002-D20000922
➤ Manual Update Only—See Tabl e A.3 for summary of manual
updates.
20010124
This firmware differs from the previous versions as follows:
SEL-311C-R102-V0-Z002002-D20000922
➤ Added compensator distance elements.
➤ Added application settings 221C, 221-16, 2PG10.
➤ Added frequency elements.
20000922
This firmware differs from the previous versions as follows:
SEL-311C-R101-V0-Z001001-D20000619
➤ Internal changes in firmware to support Flash memory revision. 20000619
This firmware differs from the previous versions as follows:
SEL-311C-R100-V0-Z001001-D19991203
➤ Manual Update Only—See Tabl e A.3 for summary of manual
updates.
20000421
SEL-311C-R100-V0-Z001001-D19991203
➤ Original Firmware Release 19991201
Table A.1 Firmware Revision History (Sheet 3 of 3)
Firmware Part/Revision No. Description of Firmware
Manual
Date Code
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