ProSoft Technology PLX81-EIP-61850 - Manual (Page 87)

PLX8x-EIP-61850 ♦ Communication Gateway Reference
Server to
IEC 61850 Client User Manual
ProSoft Technology, Inc. Page 87 of 167
July 2, 2015
5.5 IEC 61850 Detailed Specifications
The IEC 61850 Client driver supports MMS (ISO 9506-1 and ISO 9506-2)
communication profile.
Part 7-2 of the IEC 61850 protocol specification lists the basic communication
structure and abstract communication service interface (ACSI). This IEC 61850
Client driver supports the following 7-2 models:
 Association
 Data Set
 Report Control Block (Data is updated based upon various trigger options)
 GOOSE (Data is updated based upon data change only. GOOSE message is
subscribed to.)
 Control
 Time and time-synchronization
 Naming conventions
Part 8.1: MMS later in this document lists the data types supported by IEC
61850. This is important for understanding how data mapping in the gateway
works. Other protocols do not all support the many data types that IEC 61850
does, so the IEC 61850 data is converted to an appropriate data type in the other
protocol.
5.5.1 Application Association Model
This section describes the gateway’s implementation of IEC 61850-72- Clause 7:
Application association model. This clause describes how the association
between two devices is achieved: TWO-PARTY-APPLICATION-ASSOCIATION
and/or MULTICAST-APPLICATION-ASSOCIATION. Both types are used.
Two Party Messaging
Two Party messaging is the most common type of messaging our IEC 61850
driver performs. The following diagrams show the execution of two-party
messages, and their associated abort sequence. In the diagrams, the IEC 61850
Client driver is the Client. This information has been taken directly from the IEC
61850 standard.