Vertical And Horizontal Communication - ABB RELION REC615 Engineering Manual

Section 4
615 series data model
4.3
18
special logical node that describes the common functionality of the logical device. All
these data structures are located in logical device LD0 logical node LLN0.
The full data model can be exported from PCM600 in the form of a SCL file, which
is defined in part 6 of the standard.

Vertical and horizontal communication

The protection relays are capable of vertical communication between the protection
relay and monitoring and control systems (clients) such as PCM600 or MicroSCADA.
Each protection relay can communicate to five separate clients to receive events, read
or write data (an active PCM600 connection is considered to be a client). The
protection relay can report data in either buffered or unbuffered mode and execute
direct or select-before-operate control sequences according to the control commands
sent by the client.
The protection relays are also capable of horizontal or peer-to-peer communication.
They can be programmed to publish (send) information to and subscribe (receive)
information from other devices according to IEC 61850-8-1 and IEC 61850-9-2 LE.
IEC 61850 standard Edition 2 increased several identification string lengths which
affect communication engineering and interoperability. The table lists identification
length values to be considered especially with third party tools. ABB tools generally
check the length values.
Table 1: Identification lengths in IEC 61850 versions
Object Edition 1 length
IED name 28 (32-4)
Report control 14
block name
Data set name 32
RptID 65
GoID 65
MSVID 65
Edition 2 length Description
60 (64-4) Excluding the longest LD name length of 4
characters
30 Without a two digit RCB instance number
32
129 Report Identifier
129 GOOSE Identifier
65 Multicast Sampled Value Identifier (length
as in 61850-9-2 LE)
1MRS757809 C
REC615 and RER615
Engineering Guide