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Date Code 20171021 Instruction Manual SEL-421 Relay
Table of Contents
Section 10: Communications Interfaces
Communications Database .................................................................................................................................10.1
DNP3 Communication........................................................................................................................................10.8
IEC 61850 Communication ..............................................................................................................................10.22
Synchrophasors.................................................................................................................................................10.30
Section 11: Relay Word Bits
Alphabetical List.................................................................................................................................................11.1
Row Lists ..........................................................................................................................................................11.34
Section 12: Analog Quantities
Appendix A: Firmware, ICD File, and Manual Versions
Firmware..............................................................................................................................................................A.1
SELBOOT.............................................................................................................................................................A.9
ICD File ..............................................................................................................................................................A.9
Instruction Manual.............................................................................................................................................A.10
Appendix B: Converting Settings From SEL-421-0, -1, -2, -3 to SEL-421-4, -5
Relay Word Bit Changes......................................................................................................................................B.1
Analog Quantity Changes....................................................................................................................................B.2
Global Settings Changes......................................................................................................................................B.3
Group Settings Changes.......................................................................................................................................B.3
Front-Panel Settings Changes..............................................................................................................................B.4
Port Settings Changes ..........................................................................................................................................B.4
DNP3 Mapping Changes .....................................................................................................................................B.6
IEC 61850 Object Changes................................................................................................................................B.16
SEL-421-4, -5 Relay Command Summary
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