Date Code 20081022 Instruction Manual SEL-787 Relay
Appendix F
IEC 61850 Communications
Instructi on Manual
Features
The SEL-787 relay supports the following features using Ethernet and IEC
61850:
SCADA. Use as many as six MMS sessions of buffered and unbuffered
reports. Remote bits (RB01–RB32) are mapped to the RBGGIO
logical node. Breaker control bits (CCn and OCn) are mapped to the
WnCSWIn logical node. See Table F.10 and Table F.12 for details on
the logical nodes associated with these bits. This information is useful
for issuing controls with an MMS browser. Control inputs only support
the direct-with-normal-security control model.
Real-Time Status and Control. Use GOOSE with as many as 16 incoming
(receive) and as many as 8 outgoing (transmit) messages. Controls
only support the direct-with-normal-security control model. Virtual
Bits (VB001–VB128), Breaker Open (OC1–OC2) and Breaker Close
(CC1–CC2) bits can also be mapped from GOOSE receive messages
using
ACSELERATOR
®
Architect
®
SEL-5032 software.
Configuration. Use FTP client software or ACSELERATOR Architect to
transfer the Substation Configuration Language (SCL) Configured
IED Description (CID) files to the relay.
NOTE: The SEL-787 supports one
CID file, which should be transferred
only if a change in the relay
configuration is required. If an invalid
CID file is transferred, the relay will no
longer have a valid IEC 61850
configuration, and the protocol will
stop operating. To restart protocol
operation, a valid CID must be
transferred to the relay.
Commissioning and Troubleshooting. Use software such as MMS Object
Explorer and AX-S4 MMS 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-787:
➤ Introduction to IEC 61850
➤ IEC 61850 Operation
➤ IEC 61850 Configuration
➤ Logical Node Extensions
➤ Protocol Implementation Conformance Statement
➤ ACSI Conformance Statement
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