GE 350 User Manual

SR3 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE v
Table of Contents
1. INTRODUCTION Communications interfaces..........................................................................................1 - 1
2. RS485 INTERFACE Electrical Interface.............................................................................................................2 - 1
MODBUS Protocol ..............................................................................................................2 - 2
Data Frame Format and Data Rate.................................................................................2 - 2
Data Packet Format................................................................................................................2 - 2
Error Checking ...........................................................................................................................2 - 3
CRC-16 Algorithm.....................................................................................................................2 - 3
Timing ............................................................................................................................................2 - 4
3 Series supported functions ..............................................................................................2 - 4
DNP protocol settings......................................................................................................2 - 5
DNP communication...............................................................................................................2 - 5
DNP device profile....................................................................................................................2 - 6
DNP implementation ..............................................................................................................2 - 8
DNP serial EnerVista Setup ..................................................................................................2 - 12
DNP general................................................................................................................................2 - 14
IEC 60870-5-103 serial communication .................................................................2 - 16
Interoperability..........................................................................................................................2 - 16
Physical layer ...........................................................................................................................2 - 16
Link layer ....................................................................................................................................2 - 17
Application layer .....................................................................................................................2 - 17
Application level........................................................................................................................2 - 21
Application functions ............................................................................................................2 - 21
Type identification..................................................................................................................2 - 21
Function type............................................................................................................................2 - 22
Information number..............................................................................................................2 - 22
Data management..................................................................................................................2 - 23
Digital states .............................................................................................................................2 - 23
Measurands...............................................................................................................................2 - 23
Commands ................................................................................................................................2 - 25
103 general settings ...............................................................................................................2 - 25
3. ETHERNET
INTERFACE
350 Redundancy Options ..............................................................................................3 - 1
350 Parallel Redundancy Protocol (PRP) .......................................................................3 - 3
350 High-availability Seamless Redundancy (HSR).................................................3 - 4
350 Daisy Chain........................................................................................................................3 - 5
350 LLA (Link Loss Alert) ........................................................................................................3 - 6
SNTP .........................................................................................................................................3 - 7
SNTP settings..............................................................................................................................3 - 7
SNTP modes................................................................................................................................3 - 7
MODBUS TCP/IP ..................................................................................................................3 - 8
Data and control functions..................................................................................................3 - 8
Exception and error responses..........................................................................................3 - 9
Request response sequence...............................................................................................3 - 9
DNP Ethernet protocol settings...................................................................................3 - 10
DNP communication...............................................................................................................3 - 10
DNP device profile....................................................................................................................3 - 11
DNP port allocation .................................................................................................................3 - 13
DNP implementation ..............................................................................................................3 - 14

GE 350 Specifications

General

Brand	GE
Model	350
Category	Protection Device
Language	English