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GE UR Series Instruction Manual Page 416

Line differential relay.
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C.1 UCA/MMS OVERVIEW
PEER-TO-PEER COMMUNICATION:
Peer-to-peer communication of digital state information, using the UCA GOOSE data object, is supported via the use of the
UR Remote Inputs/Outputs feature. This feature allows digital points to be transferred between any UCA conforming
devices.
FILE SERVICES:
MMS file services are supported to allow transfer of Oscillography, Event Record, or other files from a UR relay.
COMMUNICATION SOFTWARE UTILITIES:
The exact structure and values of the implemented objects implemented can be seen by connecting to a UR relay with an
MMS browser, such as the "MMS Object Explorer and AXS4-MMS DDE/OPC" server from Sisco Inc.
NON-UCA DATA:
C
The UR relay makes available a number of non-UCA data items. These data items can be accessed through the "UR" MMS
domain. UCA data can be accessed through the "UCADevice" MMS domain.
a) PROTOCOL IMPLEMENTATION AND CONFORMANCE STATEMENT (PICS)
The UR relay functions as a server only; a UR relay cannot be configured as a client. Thus, the following list of sup-
ported services is for server operation only:
NOTE
The MMS supported services are as follows:
CONNECTION MANAGEMENT SERVICES:
Initiate
Conclude
Cancel
Abort
Reject
VMD SUPPORT SERVICES:
Status
GetNameList
Identify
VARIABLE ACCESS SERVICES:
Read
Write
InformationReport
GetVariableAccessAttributes
GetNamedVariableListAttributes
OPERATOR COMMUNICATION SERVICES:
(none)
SEMAPHORE MANAGEMENT SERVICES:
(none)
DOMAIN MANAGEMENT SERVICES:
GetDomainAttributes
PROGRAM INVOCATION MANAGEMENT SERVICES:
(none)
EVENT MANAGEMENT SERVICES:
(none)
C-2
L90 Line Differential Relay
APPENDIX C
GE Power Management

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L90

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