Date Code 20011009
SEL-701-1 Monitor
iii
Factory Default Logic Settings ...................................................................... B.16
Factory Default LED Settings........................................................................ B.18
Front-Panel Display Message Configuration................................................. B.20
Nondedicated SEL
Control Equation Variable Settings ..................................................... B.21
Latch Control Switch Settings ....................................................................... B.22
Stop/Trip Logic .............................................................................................. B.24
Start and Emergency Restart Logic ............................................................... B.27
ACCESS2 SEL
Control Equation Setting.............................................. B.29
Control Equation Setting .................................................... B.30
Control Equation Setting......................................... B.31
Control Equation................................................ B.32
Contact Output Control.................................................................................. B.33
Remote Control Switches .............................................................................. B.34
Selected Monitor Logic Diagrams ................................................................. B.36
Appendix C: Modbus® RTU Communications Protocol
Introduction...................................................................................................... C.1
Modbus RTU Communications Protocol......................................................... C.2
01h Read Coil Status Command ...................................................................... C.5
02h Read Input Status Command .................................................................... C.6
03h Read Holding Registers Command........................................................... C.7
04h Read Input Registers Command ............................................................... C.8
05h Force Single Coil Command..................................................................... C.9
06h Preset Single Register Command............................................................ C.10
07h Read Exception Status Command........................................................... C.11
08h Loopback Diagnostic Command ............................................................ C.12
10h Preset Multiple Registers Command ...................................................... C.13
Controlling Output Contacts
and Remote Bits Using Modbus.......................................................... C.14
Reading the Monitor Status Using Modbus................................................... C.16
Reading Event Data Using Modbus............................................................... C.17
Modbus Register Map.................................................................................... C.18
Appendix D: SEL-2020/SEL-2030 Compatibility Features
Introduction......................................................................................................D.1
Fast Binary Message Lists ...............................................................................D.2
Fast Binary Message Definitions .....................................................................D.3
Compressed ASCII Commands .....................................................................D.18
CASCII Command.........................................................................................D.19
CSTATUS Command.....................................................................................D.22
CHISTORY Command ..................................................................................D.23
CEVENT Command ......................................................................................D.24
CME E Command..........................................................................................D.26
CME M Command.........................................................................................D.27
CME T Command..........................................................................................D.28
Summary of Contents for SEL-701-1
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