Signal Identification - Hitachi Relion 650 Series Technical Manual

Section 13
Station communication
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Figure 159: Example of signal path for sampled analog values from MU and conventional
13.7.6.1

Signal identification

Up to four logical MUs can be connected to an IED on a single physical interface. The data streams
from individual MUs are distinguished by the SVId (Sampled Values Identification) setting, which
must be set identical to the MsvID data attribute of MSVCB01 in the MU.
The IEC 61850-9-2(LE) guideline specifies that the value of SVId shall comprise 10 characters and
follow the convention "xxxxMUnn01". The portions "xxxx" and "nn" can be substituted by user-defined
358
IED
Application
Preprocessing blocks
SMAI
TRM module
110 V 1 A 1 A
Merging
CT
CT/VT
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Preprocessing blocks
SMAI
MU1 MU2
1PPS
COM03 Module
LAN2 A
IEC61850-9-2LE
Ethernet Switch
IEC61850-9-2LE
IEC61850-9-2LE
ABB ABB
1PPS
Merging
Unit Unit
Combi Combi
CT
Sensor Sensor
Conventional VT
1MRK 511 557-UEN Rev. A
Station Wide
GPS Clock
Splitter
Electrical-to-
Optical Converter
1PPS
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Technical Manual