Sel 551 - Page 5

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Date Code 20110408 Instruction Manual SEL-551 Relay
Table of Contents
Appendix E: Compressed ASCII Commands
Overview .........................................................................................................................................................E.1
CASCII Command—General Format .............................................................................................................E.1
CASCII Command—SEL-551........................................................................................................................E.3
CSTATUS Command—SEL-551 ....................................................................................................................E.3
CHISTORY Command—SEL-551 .................................................................................................................E.4
CEVENT Command—SEL-551 .....................................................................................................................E.4
Appendix F: Setting Negative-Sequence Overcurrent Elements
Setting Negative-Sequence Definite-Time Overcurrent Elements .................................................................. F.1
Setting Negative-Sequence Time-Overcurrent Elements ................................................................................ F.1
Coordinating Negative-Sequence Overcurrent Elements................................................................................ F.2
Other Negative-Sequence Overcurrent Element References........................................................................... F.7
Appendix G: Modbus RTU Communications Protocol
Overview ........................................................................................................................................................ G.1
Modbus RTU Communications Protocol ....................................................................................................... G.1