GE 345

toc–2 345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
TOC
IEC 60870-5-104 protocol settings........................................................................................................58
IEC 60870-5-104 point lists .......................................................................................................................58
Summary of Ethernet client connections ...........................................................................................60
IEC 61850 GOOSE communications......................................................................................................62
EnerVista SR3 Setup software structure.............................................................................................62
GOOSE transmission.....................................................................................................................................64
GOOSE Rx...........................................................................................................................................................65
GOOSE Rx status ............................................................................................................................................66
GOOSE Rx headers........................................................................................................................................67
GOOSE receive dataset structure...........................................................................................................68
GOOSE remote inputs ..................................................................................................................................69
USB interface..............................................................................................................72
MODBUS Protocol ..........................................................................................................................................72
Data Frame Format and Data Rate ......................................................................................................72
Data Packet Format......................................................................................................................................72
Error Checking.................................................................................................................................................73
CRC-16 Algorithm ..........................................................................................................................................73
Timing..................................................................................................................................................................74
345 supported functions ............................................................................................................................74
MODBUS memory map.............................................................................................75
Format Codes ...............................................................................................................................................128
MODBUS Functions ................................................................................................ 171
Function Code 03H.....................................................................................................................................171
Function Code 04H.....................................................................................................................................171
Function Code 05H.....................................................................................................................................172
Function Code 06H.....................................................................................................................................173
Function Code 07H.....................................................................................................................................173
Function Code 08H.....................................................................................................................................174
Function Code 10H.....................................................................................................................................175
Error Responses...........................................................................................................................................175
Force coil commands................................................................................................................................176
Performing Commands Using Function Code 10H.....................................................................177
Using the MODBUS User Map............................................................................... 179
MODBUS User Map.....................................................................................................................................179