A.6
SEL-751 Relay Instruction Manual Date Code 20170927
Firmware, ICD, and Manual Versions
Firmware
➤ Modified to process RSTTRGT SELOGIC equation output on the
rising edge.
➤ Corrected an issue with 81RFIBLK = OFF setting. When
81RFIBLK = OFF, the overcurrent blocking scheme should be disabled.
➤ Lowered the minimum value of the VNOM setting range from 100 V
to 20 V.
➤ Revised to allow anonymous TCP connection from DNP masters when
DNPIPx is set to 0.0.0.0.
➤ Changed storage of the latch and local bits from volatile to non-
volatile memory.
SEL-751-R105-V0-Z002001-D20130206
➤ All 50 element time delay setting range upper limits changed to 400
seconds.
20130206
➤ Added event fault current data to analog quantities for DNP.
➤ Added new demand power metering and analog quantities.
➤ Corrected an issue with MET PM, where the command used UTC time
instead of local time.
➤ Corrected an issue with the HIF HIS report where the report displayed
the reference number incorrectly.
➤ Fixed an issue that caused the port settings to not be accepted when the
relay settings were downloaded using
ACSELERATOR QuickSet
SEL-5030 Software. ACSELERATOR QuickSet reported with a
message that settings files were not received.
➤ Added a feature in Modbus to always show the latest event data unless
another event is selected.
➤ Corrected an issue where the front panel showed a blank page after
target resetting the TRIP.
➤ Corrected an issue with the data type “Units_0” in the IEC 61850 ICD file.
➤ Corrected a noise issue when exercising the pulse command of the
hybrid outputs.
➤ Resolved an issue that involved phase identification logic where the
output was not long enough in duration to latch the phase LEDs when
a trip occurred.
➤ Updated the error messages for setting interdependency checks to
match the global setting AOx0yH.
➤ Corrected an issue with the Modbus register for LOCAT (fault location).
➤ Improved synchrophasor algorithm to yield better phasor-based
frequency measurements.
➤ Corrected an issue with CEV HIF command in which the command
gave the “No Data Available” message when the number of HIF events
exceeded the maximum number of events for the given HIFLER setting.
➤ Corrected an issue with the rotating display in which a blank page
appeared when the warning message went away.
➤ Modified Real Time Clock (RTC) diagnostics logic to show failure
only if the RTC diagnostics fail three consecutive times.
➤ Extended the setting range for the time dial of all the IEC TOC
elements to 0.05–1.50.
Table A.2 R100 Series Firmware Revision History (Sheet 4 of 5)
Firmware Identification (FID) Number Summary of Revisions
Manual
Date Code
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