
PLX8x-EIP-61850 ♦ Communication Gateway Reference
Server to
IEC 61850 Client User Manual
ProSoft Technology, Inc. Page 101 of 167
July 2, 2015
5.5.6 MMS
Part 8-1 of the protocol specification details the Specific Communication Service
Mapping (SCSM), which is mapping of data to MMS (ISO 9506-1 and ISO 9506-
2). The IEC 61850 driver is fully compliant to the MMS requirement.
In terms of the seven-layer OSI model, the new MMS stack looks like this:
Association Control Service Element ( ACSE )- ISO 8649/8650
Connection Oriented Presentation - ISO 8822/8823
Abstract Syntax Notation (ASN)- ISO 8824/8825
Connection Oriented Session - ISO 8326/8327
ISO transport over TCP - RFC 1006
Transmission Control Protocol (TCP) - RFC 793
Internet Control Message Protocol (ICMP) - RFC 792
Internet Protocol (IP)-
Address Resolution Protocol (ARP)- RFC 826
IP datagrams over Ethernet - RFC 894
MAC - ISO 8802-3 [Ethernet]
Data Types
Understanding the data types used by the PLX8x-EIP-61850 is helpful for
understanding data transfer for IEC 61850-7-2 Clause 14 (BRCB & URCB), 15
(GOOSE), and 17 (CONTROL).
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