iii
Date Code 20100129 Instruction Manual SEL-751A Relay
Table of Contents
Appendix B: Firmware Upgrade Instructions
Overview .........................................................................................................................................................B.1
Upgrade Instructions .......................................................................................................................................B.1
Appendix C: SEL Communications Processors
SEL Communications Protocols......................................................................................................................C.1
SEL Communications Processor .....................................................................................................................C.3
SEL Communications Processor and Relay Architecture...............................................................................C.5
SEL Communications Processor Example......................................................................................................C.7
Appendix D: DNP3 Communications
Overview ........................................................................................................................................................ D.1
Introduction to DNP3 ..................................................................................................................................... D.1
DNP3 in the SEL-751A.................................................................................................................................. D.6
DNP3 Documentation .................................................................................................................................. D.20
Appendix E: Modbus RTU Communications
Overview .........................................................................................................................................................E.1
Communications Protocol ...............................................................................................................................E.2
Modbus Register Map ...................................................................................................................................E.26
Appendix F: IEC 61850 Communications
Features............................................................................................................................................................ F.1
Introduction to IEC 61850............................................................................................................................... F.2
IEC 61850 Operation....................................................................................................................................... F.3
IEC 61850 Configuration .............................................................................................................................. F.10
Logical Node Extensions............................................................................................................................... F.16
Logical Nodes................................................................................................................................................ F.18
Protocol Implementation Conformance Statement ....................................................................................... F.25
ACSI Conformance Statements..................................................................................................................... F.31
Appendix G: DeviceNet Communications
Overview ........................................................................................................................................................ G.1
DeviceNet Card .............................................................................................................................................. G.1
Features........................................................................................................................................................... G.2
Electronic Data Sheet ..................................................................................................................................... G.3
Appendix H: Synchrophasors
Overview ........................................................................................................................................................ H.1
Synchrophasor Measurement ......................................................................................................................... H.2
Settings for Synchrophasors ........................................................................................................................... H.4
Synchrophasor Relay Word Bits..................................................................................................................... H.8
View Synchrophasors Using the MET PM Command................................................................................... H.9
C37.118 Synchrophasor Protocol................................................................................................................. H.10
Appendix I: MIRRORED BITS Communications
Overview ..........................................................................................................................................................I.1
Operation ..........................................................................................................................................................I.1
Settings .............................................................................................................................................................I.5
Appendix J: Relay Word Bits
Overview ..........................................................................................................................................................J.1
Definitions ........................................................................................................................................................J.4
Appendix K: Analog Quantities
Glossary
Index
SEL-751A Relay Command Summary