IEC 61850

IEC 61850 is the most recent standard for communication networks and systems in substations. Its scope of definitions greatly exceeds that of the preceding standard IEC 60870-5-101. IEC 61850 comprises these individual standards:

  • IEC 61850-1, 61850-2
    Introduction and overview / Glossary
  • IEC 61850-3
    General requirements
  • IEC 61850-4
    System and project management
  • IEC 61850-5
    Communication requirements for functions and device models
  • IEC 61850-6
    Configuration description language for communication in electrical substations related to IEDs
  • IEC 61850-7-1
    Basic communication structure for substation and feeder equipment - Principles and models
  • IEC 61850-7-2
    Basic communication structure for substation and feeder equipment - Abstract communication service interface (ACSI)
  • IEC 61850-7-3
    Basic communication structure for substation and feeder equipment - Common data classes
  • IEC 61850-7-4
    Basic communication structure for substation and feeder equipment - Compatible logical node classes and data classes
  • IEC 61850-8-1
    Specific Communication Service Mapping (SCSM) - Mapping to MMS (ISO 9506-1 and ISO 9506-2) and to ISO/IEC 8802-3
  • IEC 61850-9-1
    Specific Communication Service Mapping (SCSM) - Sampled values over serial unidirectional multidrop point-to-point link
  • IEC 61850-9-2
    Specific Communication Service Mapping (SCSM) - Sampled values over ISO/IEC 8802-3
  • IEC 61850-10
    Conformance testing

IEC 61850 is not limited to the transmission format, but also defines a complete data model. It also introduces an XML-based language (Substation Configuration description Language -  SCL) offering a vendor-independent method of describing devices and their configurations.

IEC 61850 is supplemented by branch-specific data models (e.g. IEC 61400-25), in which the basic protocol principles are maintained.
The standard IEC 61400-25 (communications for monitoring and control of wind power plants) is also implemented in the protocol stack IEC 61850, Client.
The mapping is complying with part 4 of the norm (IEC 61400-25 annex C: IEC 61400 per Manufacturing Message Specification (MMS) according to IEC 61850-8-1).

ISO/OSI Model

7 Application Layer TimeSync
SNTP
SV
Sampled Values
GOOSE
Generic Object Oriented Substation Event
GSSE
Generic Substation Status Event
MMS ISO 9506
Connectionless ACSE ISO/IEC 8649,10035
MMS ISO 9506
Core ACSI Services
Connection-oriented ACSE ISO/IEC 8649,8650
6 Presentation Layer n/an/aASN.1, BER
ISO/IEC 8824.1
Connectionless presentation
ISO/IEC 8649,10035
ASN.1, BER
ISO/IEC 8824.1
Connection-oriented presentation protocol
ISO/IEC 8822,8823
ASN.1, BER
ISO/IEC 8824.1
5 Session Layer n/an/an/aConnectionless session
ISO/IEC 9548
Connection-oriented session
ISO/IEC 8326,8327
4 Transport Layer UDP/IPn/an/aGSSE T-Profile
ISO/IEC 8602
ISO CO T-Profile
ISO/IEC 8073
TCP/IP T-Profile
ISO Transport on top of TCP (RFC 1006)
3 Network Layer IP (RFC 791)n/an/aISO/IEC 9542ISO/IEC 8473IP (RFC 791)
2 Link Layer RFC 894Priority Tagging/VLAN (IEEE 802.1Q)
CSMA/CD (ISO/IEC 8802.3)
ISO/IEC 8802-2 LLCRFC 894
1 Physical Layer ISO/IEC 8802.3
Ethertype
ISO/IEC 8802.3ISO/IEC 8802.3
Ethertype

Implemented Protocol Stacks

IEC 61850, Client

IEC 61850, Server

Applicable Products

  • ipConv
    ipConv

    Universal protocol converter for highest degree of flexibility

References

  • SEC SVC
    SEC SVC, Saudi Arabia

    Products: ipConv
    Protocol Stacks: IEC 60870-5-101, Slave IEC 60870-5-104, Slave IEC 61850, Client Simatic TDC, Master

  • INELFE, France-Spain
    INELFE, France-Spain, France-Spain

    Products: ipConv
    Protocol Stacks: IEC 60870-5-103, Master IEC 60870-5-104, Master IEC 60870-5-104, Slave IEC 61850, Client Simatic TDC, Master

  • Nordsee One
    Nordsee One, Germany

    Products: ipConv
    Protocol Stacks: Modbus, Master IEC 60870-5-104, Slave IEC 60870-5-101, Slave IEC 61850, Client IEC 61850, Server OPC UA 1.02, Server SNMP, Client

  • Altentreptow North
    Altentreptow North, Germany

    Products: ipConv
    Protocol Stacks: IEC 60870-5-103, Slave IEC 61850, Client

  • OWP Global Tech One
    OWP Global Tech One, Germany

    Products: ipConv
    Protocol Stacks: IEC 60870-5-104, Master IEC 60870-5-104, Slave IEC 60870-5-101, Slave IEC 61850, Client OPC UA 1.02, Server