Communication Redundancy RSTP PRP HSR

Siemens AG 2012. All rights reserved.

Network redundancy mechanisms for Substation Automation, Principals and comparison

Dual Link RSTP PRP HSR

Sector Infrastructure & CitiesEnergy Automation Siemens AG 2012. All rights reserved.

Page 2 August 2012

Agenda

Summary

IEC 61850 communication within a substation

Comparison of redundancy mechanisms

Principals of redundancy mechanisms


Page 3 August 2012


Control CenterControl Center

IEC 608705-104DNP3 TCP

Digital Instrument Transformer

Data via IEC61850-9-2

CTVT

xCircuitBreaker

Controller

12

3rdparty

device

Parallel wiring

Substation Controller

Process bus

3

Station bus

Control / Inforeport(ca. 500 ms delay time)1

2 GOOSE Inter IED Communication(ca. 10-100 ms, dep. on application)

3 Sampled Values (ca 2 ms delay time)

MergingUnit


Page 4 August 2012

Agenda

Summary





Page 5 August 2012

Redundancy with recovery time

Dual Homing Link RedundancyTwo active links, one is sending,sending link changes if one link is down

RSTP Rapid Spanning Tree ProtocolRedundancy IEEE 802.1D-2004

Seamless Redundancy Systems:

Parallel Redundancy Protocol IEC 62439-3.4Two active links, both sending, parallel configuration

High availability seamless redundancy IEC 62439-3.5Two active links, both sending, ring configuration



Page 6 August 2012

.

dual link

Substation Controller 2 external Switches directly

connected SIPROTEC devices

connected in star structure to switches

SIPROTEC devices with two Ethernet ports

Port 1 is sending Port 2 is standby Switch over time < 5 ms Established since 2004.

Principal of Dual Link (Dual homing) Redundancy


Page 7 August 2012

Features of Dual Link Redundancy

PRO

Easy to handle

No settings

Huge field experience

CONS

Double number of external switches required

Only supervision of directly linked connections. Broken connections in the upper network will be not detected by the device.


Page 8 August 2012

Principle of RSTP-Configuration IEEE 802.1D-2004

.


Up to 30 SIPROTEC

devices per ring

2 external RSTP-Switches SIPROTEC devices with

integrated RSTP switch Rings with up to 30 devices Several rings can be

connected to external switches

Setting of RSTP parameters necessary

Well established technology( > 250.000 devices)

Field proven interoperability

RSTP Switch

RSTP over Fast fibre optic Ethernet

dual link

RSTP


Page 9 August 2012

Features of RSTP

PRO

Only one network required

Redundancy achieved ring structure

Huge field experience

Approved IEEE 802.1D-2004 Standard

CONS

Short reconfiguration time in case of interruption(dependent from failure location)

Settings within RSTP switches necessary


Page 10 August 2012

Principle of PRP - IEC 62439-3.4

Two parallel networks Device are connected to

network PRP-A and PRP-B Devices send via both active

links RedBox for connection of

non PRP devices Seamless Interoperability tests done

PRP-Switch

PRP-A network

PRP-B network

PRP-RedBox

PRP-A PRP-B

Field level

RB

Non PRP devices

RB


Page 11 August 2012

Details of redundancy principles Features of PRP

PRO Seamless reconfiguration - No recovery time

Highest level of redundancy

Simple mechanism, no special switch settings (as in RSTP)

normal Devices with 1 interface can be connected to one of the PRP-Lans (SAN = Single attached nodes)

Siemens supports the latest version of IEC 62439-3 (PRP1)

Approved IEC Standard

CONS

Double number of switches = increased cost

Switches have to handle Jumbo-Ethernet frames

Linkage of the two networks leads to breakdown of the network


Page 12 August 2012

PRP Solution from Siemens

PRP available for all protection devices

Strict separation of communication and protection in device design

Dedicated communication module relieves protection CPU

Additional filters on communication module for higher communication performance and security

existing modules can be updated

Seamless redundancy is required Star-structure and redundant

networks are preferred

Seamless Setting free High availability Retrofitting on existing module Secure and safe operation Safes investment

seamless and doubled network

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Page 13 August 2012

Principle of HSR-Configuration IEC 62439-3.5

.


Up to 50 SIPROTEC

devices per ring

2 Redboxes SIPROTEC devices with

integrated HSR switch Rings with up to 50 devices Redboxes distributed in the

ring Seamless Interoperability tests done

RB

PRP-Switch

HSR Ring

HSR RedBox

PRP-A connection

PRP-B connection

RB

RB

PRP-A PRP-B

HSR


Page 14 August 2012

Features of HSR High Available Seamless Redundancy

PRO Seamless reconfiguration - No recovery time

One common Network

Cost reduction through ring configuration

Approved IEC 62439-3 Standard

CONS

Standard Ethernet components (e.g. PC) can be connected only via a RedBox


Page 15 August 2012

HSR Solution from Siemens

HSR available for all protection devices

Ring structures up to 50 devices Strict separation of communication

and protection in device design Dedicated communication module

relieves protection CPU Additional filters on communication

module for higher communication performance and security

existing modules can be updated

Seamless redundancy is required Cost effective network structure are

preferred

Seamless Setting free High availability Retrofitting on existing module Secure and safe operation Cost effective Safes investment

cost effective and seamless

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Page 16 August 2012

Agenda

Summary





Page 17 August 2012


RSTP PRP HSR

Siemensfield experience

>250.000 devices >2.000 >100

Network configuration

ring parallel ring

Max. devices perlayer 2 network

Unlimited(max. 30 / ring)

512 512(max. 50 / ring)

Seamless(no recovery time)

-

Parameter free -

Budget-saving network

-


Page 18 August 2012

Agenda

Summary





Page 19 August 2012

PRP-A

PRP-B

BA

HSR

HSR

HSR

SIPROTEC 4 Communication Module EN100 optical(PRP and HSR)

Siemens SOFTNET - IE RNA V8.1PRP-Driver for PCusing two Ethernet-Cards

SIEMENS RedboxSCALANCE X204RNA EEC - Coupler for PRP to HSR- Connects non-PRP/HSR to

PRP or HSR

Ruggedcom A Siemens Business

A Complete Portfolio of Industrial Networking

SICAM Substation Controller

Non HSR device

Non HSR device

SIEMENS Seamless Ethernet Media Redundancy Suite


Page 20 August 2012

Summary

Siemens offers redundancy solutions Dual link redundancy RSTP PRP (seamless) HSR (seamless)

SIPROTEC with integrated RSTP/PRP/HSR switches Dual link and RSTP: Field proven established technology

PRP: High level redundancy through double network solution

HSR: High level redundancy through cost effective ring network structure. Combinable with PRP network.

Successful participation at UCA Interoperability test CIGRE 2010 and 2012

Siemens solutions offer a wide variety in long year field provenas well as state of the art redundancy protocols


Page 21 August 2012

Thank you for your attention!

Documents

Communication Redundancy RSTP PRP HSR