ABB Relion 670 Series Technical Reference Manual page 1004

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Table of Contents

Station communication

Function description

Parallel Redundancy Protocol Status

Duo driver configuration

Introduction

Redundant station bus communication according to IEC 62439-3 Edition 1 and IEC

62439-3 Edition 2 are available as options in 670 series IEDs. IEC 62439-3 parallel

redundant protocol is an optional quantity and the selection is made at ordering.

Redundant station bus communication according to IEC 62439-3 uses both port AB

and port CD on the OEM module.

Select IEC 62439-3 Edition 1 protocol at the time of ordering when an

existing redundant station bus DuoDriver installation is extended.

Select IEC 62439-3 Edition 2 protocol at the time of ordering for new

installations with redundant station bus.

IEC 62439-3 Edition 1 is NOT compatible with IEC 62439-3 Edition 2.

Principle of operation

The redundant station bus communication (DUODRV) is configured using the local

HMI. The settings for DUODRV are also visible in PST in PCM600.

The communication is performed in parallel, that is the same data package is

transmitted on both channels simultaneously. The received package identity from one

channel is compared with data package identity from the other channel, if the same, the

last package is discarded.

PRPSTATUS function block supervise the redundant communication on the two

channels. If no data package has been received on one (or both) channels within the

last 10 s, the output LAN-A-STATUS and/or LAN-B-STATUS is set to indicate error.

identification

1MRK505222-UUS C

ANSI/IEEE C37.2

device number

Technical reference manual

Relion red670