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Communication protocols. Application Process. Network independent Interface. ACSI Abstract Comm. Service Interface. SCSM 1. SCSM 2. SCSM n. Specific Comm. Service Mapping. Specific Interface. AL 1. AL 2. AL n. Application Layer 7. Layer 1..6.

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communication protocols
Communication protocols

ApplicationProcess

Network independent Interface

ACSIAbstract Comm.Service Interface

SCSM 1

SCSM 2

SCSM n

Specific Comm. Service Mapping

Specific Interface

AL 1

AL 2

AL n

Application Layer 7

Layer 1..6

communication concepts

Peer to peer communication; time critical

Client / Server communication

reports

req / rsp

req / rsp

GOOSE MessageSampled Values

multicast

Communication concepts

Physical Device

Physical Device

ACSI Client

ACSI Server

Data

Data

Data

  • Applications of "peer-to-peer" communication
    • tripping of circuit breakers: short information that needs to be transmitted with a low probability of loss within a few milliseconds
    • transmission of sampled values from instrumental transformers: high amount of data, to be transmitted within a few milliseconds, loss of data needs to be detected

Application

Physical Device

ACSI Server

Data

Data

Data

Physical Device

Application

Application

communication stack
Communication stack

Application

ACSI

GOOSE

Samples

Client / Server Services

MMS

ASN.1

ISO Session

RFC 1006

TCP

IP

EthType

EthType

EthType

Ethernet II

Priority tagging 802.1p/802.1Q

interface model

61850-8-1

61850-9-2

HV Equipment

HV Equipment

61850-9-1

Interface model

Technical Services

7

Station Level

9

Function B

Function A

1

6

1

6

Bay Level

Bay Level

3

8

3

Protection

Control

Protection

Control

4

5

4

5

system overview
System overview

IEC 61850-8-1

IEC 61850-9-x