Date Code 20170927 Instruction Manual SEL-751 Relay
Appendix F
IEC 61850 Communications
Features
The SEL-751 Relay uses Ethernet and IEC 61850 to support the following
features:
➤ SCADA—Connect as many as seven simultaneous IEC 61850
MMS client sessions. The SEL-751 also supports as many as
seven buffered and seven unbuffered report control blocks. See
Table F.22: Logical Device: CON (Remote Control) for Logical
Node mapping that enables SCADA control via a
Manufacturing Messaging Specification (MMS) browser.
Controls support direct control with normal security, direct
control with enhanced security, and SBO control with enhanced
security control models.
➤ Peer-to-Peer Real-Time Status and Control—Use GOOSE with
as many as 64 incoming (receive) and 8 outgoing (transmit)
messages. Virtual bits (VB001–VB128) and Remote Analogs
(RA001–RA128) can be mapped from incoming GOOSE
messages.
➤ Configuration—Use FTP client software or ACSELERATOR
Architect SEL-5032 Software to transfer the Substation
Configuration Language (SCL) Configured IED Description
(CID) file to the relay.
NOTE: The SEL-751 supports one CID
file, which should be transferred only
if a change in the relay configuration
is required.
➤ Commissioning and Troubleshooting—Use software such as
AX-S4 from Sisco, Inc., to browse the relay logical nodes and
verify functionality.
This appendix presents the information you need to use the IEC 61850
features of the SEL-751:
➤ Introduction to IEC 61850
➤ IEC 61850 Operation
➤ IEC 61850 Configuration
➤ Logical Nodes
➤ Logical Node Extensions
➤ Protocol Implementation Conformance Statement
➤ ACSI Conformance Statement
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