C.1 UCA/MMS OVERVIEW
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
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.
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:
The MMS supported services are as follows:
CONNECTION MANAGEMENT SERVICES:
VMD SUPPORT SERVICES:
VARIABLE ACCESS SERVICES:
OPERATOR COMMUNICATION SERVICES:
SEMAPHORE MANAGEMENT SERVICES:
DOMAIN MANAGEMENT SERVICES:
PROGRAM INVOCATION MANAGEMENT SERVICES:
EVENT MANAGEMENT SERVICES:
L90 Line Differential Relay
GE Power Management