5
REDUNDANT ETHERNET COMMUNICATION
Redundancy is required where a single point of failure cannot be tolerated. It is required in critical applications
such as substation automation. Redundancy acts as an insurance policy, providing an alternative route if one
route fails.
Ethernet communication redundancy is available for most GE products, using a Redundant Ethernet Board (REB).
The REB is a Network Interface Card (NIC), which incorporates an integrated Ethernet switch. The board provides
two Ethernet transmitter/receiver pairs.
By ordering option, a number of different protocols are available to provide the redundancy according to particular
system requirements.
In addition to the two Ethernet transmitter/receiver pairs, the REB provides link activity indication in the form of
LEDs, link fail indication in the form of watchdog contacts, and a dedicated time synchronisation input.
The dedicated time synchronisation input is designed to connect to an IRIG-B signal. Both modulated and un-
modulated IRIG-B formats are supported according to the selected option. Simple Network Time Protocol (SNTP) is
supported over the Ethernet communications.
5.1
SUPPORTED PROTOCOLS
A range of Redundant Ethernet Boards are available to support different protocols for different requirements. One
of the key requirements of substation redundant communications is "bumpless" redundancy. This means the
ability to transfer from one communication path to another without noticeable consequences. Standard protocols
of the time could not meet the demanding requirements of network availability for substation automation
solutions. Switch-over times were unacceptably long. For this reason, companies developed proprietary protocols.
More recently, however, standard protocols, which support bumpless redundancy (namely PRP and HSR) have
been developed and ratified.
As well as supporting standard non-bumpless protocols such as RSTP, the REB was originally designed to support
bumpless redundancy, using proprietary protocols (SHP, DHP) before the standard protocols became available.
Since then, variants have been produced for the newer standard protocols.
REB variants for each of the following protocols are available:
●
PRP (Parallel Redundancy Protocol)
●
HSR (High-availability Seamless Redundancy)
●
RSTP (Rapid Spanning Tree Protocol)
●
SHP (Self-Healing Protocol)
●
DHP (Dual Homing Protocol)
PRP and HSR are open standards, so their implementation is compatible with any standard PRP or HSR device
respectively. PRP provides "bumpless" redundancy. RSTP is also an open standard, so its implementation is
compatible with any standard RSTP devices. RSTP provides redundancy, however, it is not "bumpless".
SHP and DHP are proprietary protocols intended for use with specific GE products:
●
SHP is compatible with the C264-SWR212 as well as H35x multimode switches.
●
DHP is compatible with the C264-SWD212 as well as H36x multimode switches.
Both SHP and DHP provide "bumpless" redundancy.
Note:
The protocol you require must be selected at the time of ordering.
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Страница 18: ...Contents P64x xvi P64x TM EN 1 3 ...
Страница 24: ...Table of Figures P64x xxii P64x TM EN 1 3 ...
Страница 25: ...CHAPTER 1 INTRODUCTION ...
Страница 26: ...Chapter 1 Introduction P64x 2 P64x TM EN 1 3 ...
Страница 36: ...Chapter 1 Introduction P64x 12 P64x TM EN 1 3 ...
Страница 37: ...CHAPTER 2 SAFETY INFORMATION ...
Страница 38: ...Chapter 2 Safety Information P64x 14 P64x TM EN 1 3 ...
Страница 50: ...Chapter 2 Safety Information P64x 26 P64x TM EN 1 3 ...
Страница 51: ...CHAPTER 3 HARDWARE DESIGN ...
Страница 52: ...Chapter 3 Hardware Design P64x 28 P64x TM EN 1 3 ...
Страница 87: ...CHAPTER 4 SOFTWARE DESIGN ...
Страница 88: ...Chapter 4 Software Design P64x 64 P64x TM EN 1 3 ...
Страница 98: ...Chapter 4 Software Design P64x 74 P64x TM EN 1 3 ...
Страница 99: ...CHAPTER 5 CONFIGURATION ...
Страница 100: ...Chapter 5 Configuration P64x 76 P64x TM EN 1 3 ...
Страница 121: ...CHAPTER 6 TRANSFORMER DIFFERENTIAL PROTECTION ...
Страница 122: ...Chapter 6 Transformer Differential Protection P64x 98 P64x TM EN 1 3 ...
Страница 165: ...CHAPTER 7 TRANSFORMER CONDITION MONITORING ...
Страница 166: ...Chapter 7 Transformer Condition Monitoring P64x 142 P64x TM EN 1 3 ...
Страница 189: ...CHAPTER 8 RESTRICTED EARTH FAULT PROTECTION ...
Страница 190: ...Chapter 8 Restricted Earth Fault Protection P64x 166 P64x TM EN 1 3 ...
Страница 215: ...CHAPTER 9 CURRENT PROTECTION FUNCTIONS ...
Страница 216: ...Chapter 9 Current Protection Functions P64x 192 P64x TM EN 1 3 ...
Страница 249: ...CHAPTER 10 CB FAIL PROTECTION ...
Страница 250: ...Chapter 10 CB Fail Protection P64x 226 P64x TM EN 1 3 ...
Страница 259: ...CHAPTER 11 VOLTAGE PROTECTION FUNCTIONS ...
Страница 260: ...Chapter 11 Voltage Protection Functions P64x 236 P64x TM EN 1 3 ...
Страница 274: ...Chapter 11 Voltage Protection Functions P64x 250 P64x TM EN 1 3 ...
Страница 275: ...CHAPTER 12 FREQUENCY PROTECTION FUNCTIONS ...
Страница 276: ...Chapter 12 Frequency Protection Functions P64x 252 P64x TM EN 1 3 ...
Страница 286: ...Chapter 12 Frequency Protection Functions P64x 262 P64x TM EN 1 3 ...
Страница 287: ...CHAPTER 13 MONITORING AND CONTROL ...
Страница 288: ...Chapter 13 Monitoring and Control P64x 264 P64x TM EN 1 3 ...
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Страница 307: ...CHAPTER 14 SUPERVISION ...
Страница 308: ...Chapter 14 Supervision P64x 284 P64x TM EN 1 3 ...
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Страница 323: ...CHAPTER 15 DIGITAL I O AND PSL CONFIGURATION ...
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Страница 336: ...Chapter 15 Digital I O and PSL Configuration P64x 312 P64x TM EN 1 3 ...
Страница 337: ...CHAPTER 16 COMMUNICATIONS ...
Страница 338: ...Chapter 16 Communications P64x 314 P64x TM EN 1 3 ...
Страница 397: ...CHAPTER 17 CYBER SECURITY ...
Страница 398: ...Chapter 17 Cyber Security P64x 374 P64x TM EN 1 3 ...
Страница 415: ...CHAPTER 18 INSTALLATION ...
Страница 416: ...Chapter 18 Installation P64x 392 P64x TM EN 1 3 ...
Страница 429: ...5 2 CASE DIMENSIONS 60TE E01409 Figure 167 60TE case dimensions P64x Chapter 18 Installation P64x TM EN 1 3 405 ...
Страница 431: ...CHAPTER 19 COMMISSIONING INSTRUCTIONS ...
Страница 432: ...Chapter 19 Commissioning Instructions P64x 408 P64x TM EN 1 3 ...
Страница 454: ...V01505 Figure 173 Harmonic Restraint Test Plane Chapter 19 Commissioning Instructions P64x 430 P64x TM EN 1 3 ...
Страница 460: ...Chapter 19 Commissioning Instructions P64x 436 P64x TM EN 1 3 ...
Страница 461: ...CHAPTER 20 MAINTENANCE AND TROUBLESHOOTING ...
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Страница 477: ...CHAPTER 21 TECHNICAL SPECIFICATIONS ...
Страница 478: ...Chapter 21 Technical Specifications P64x 454 P64x TM EN 1 3 ...
Страница 507: ...APPENDIX A ORDERING OPTIONS ...
Страница 508: ...Appendix A Ordering Options P64x P64x TM EN 1 3 ...
Страница 512: ...Appendix A Ordering Options P64x A4 P64x TM EN 1 3 ...
Страница 513: ...APPENDIX B SETTINGS AND SIGNALS ...
Страница 515: ...APPENDIX C WIRING DIAGRAMS ...
Страница 516: ...Appendix C Wiring Diagrams P64x P64x TM EN 1 3 ...
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