List of Tables
x
Section 10: Maintenance & Troubleshooting
Table 10.2 Relay Self-Tests .......................................................................... 10.3
Table 10.3 Relay Enabled Front-Panel LED Dark ....................................... 10.6
Table 10.4 Cannot See Characters on Relay Front-Panel Display Screen ... 10.6
Table 10.5 Relay Does Not Accurately Measure Voltages or Currents........ 10.6
Table 10.6 Relay Does Not Respond to
Table 10.7 Relay Does Not Respond to Faults............................................. 10.7
Appendix A: Firmware Versions
A
B: SEL
PPENDIX
Table B.1 SEL-701 Relay Word Bits ............................................................B.4
Table B.3 SEL
Table B.4 Remote Control Switch ..............................................................B.30
Appendix C: Modbus
Table C.1 Modbus Query Fields ...................................................................C.2
Table C.3 SEL-701 Relay Modbus Exception Codes ...................................C.3
Table C.4 01h Read Coil Status Command...................................................C.5
Table C.5 02h Read Input Status Command .................................................C.6
Table C.6 03h Read Holding Registers Command .......................................C.7
Table C.7 04h Read Input Registers Command ............................................C.8
Table C.8 05h Force Single Coil Command .................................................C.9
Table C.9 SEL-701 Relay Command Coils ..................................................C.9
Table C.10 06h Preset Single Register Command ........................................C.10
Table C.11 07h Read Exception Status Command .......................................C.11
Table C.12 08h Loopback Diagnostic Command .........................................C.12
Table C.13 10h Preset Multiple Registers Command ...................................C.13
Table C.14 SEL-701 Relay Modbus Command Region ...............................C.14
Table C.16 Relay Self-Test Result in Bit Definition.....................................C.16
Appendix D: SEL-2020/2030 & SEL-701PC Compatibility Features
Table D.1 Binary Message List .................................................................... D.2
Table D.2 ACSII Configuration Message List ............................................. D.2
Table D.3 A5C0 Relay Definition Block ..................................................... D.3
701 Motor Protection Relay
Command from Device Connected to Serial Port ................. 10.7
OGIC ®
Control Equations & Relay Logic
Control Equation Operators..........................................B.9
OGIC
®
RTU Communications Protocol
Date Code 20010719
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