D90
Table of contents
COMMUNICATION
COMMUNICATION
INDEX
PLUS
D90
LINE DISTANCE PROTECTION SYSTEM - COMMUNICATIONS GUIDE
Plus
Line Distance Protection System
For further assistance ...................................................................................................1
Physical layer....................................................................................................................................................3
Data link layer ..................................................................................................................................................4
CRC-16 algorithm ...........................................................................................................................................4
Modbus function codes .................................................................................................5
Read actual values ........................................................................................................................................5
Execute command.........................................................................................................................................6
Exception responses.....................................................................................................................................7
Modbus settings .............................................................................................................8
Modbus protocol.............................................................................................................................................8
Modbus user map ..........................................................................................................................................8
Modbus memory map....................................................................................................9
Modbus data formats............................................................................................................................. 156
DNP device profile ..................................................................................................... 197
DNP v3.00 device profile document ................................................................................................ 197
DNP protocol settings............................................................................................................................. 208
DNP points .................................................................................................................. 212
Binary input points................................................................................................................................... 212
Analog input points ................................................................................................................................. 214
DNP user point list settings.................................................................................................................. 214
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