ABB
Merging
Unit
Ethernet Switch
IED
Combi
Sensor
IEC61850-9-2LE
IEC61850-9-2LE
Splitter
Electrical-to-
Optical Converter
1PPS
1PPS
IEC61850-8-1
Station Wide
SCADA System
Station Wide
GPS Clock
Other
Relays
IEC61850-8-1
en08000070-3.vsd
IEC08000070 V2 EN-US
Figure 408: Example of a station configuration with the IED receiving analogue
values from merging units
21.3.2 Setting guidelines
GUID-29B296B3-6185-459F-B06F-8E7F0C6C9460 v4
Merging Units (MUs) have several settings on local HMI under:
Section 21 1MRK 506 369-UEN B
Station communication
816 Line distance protection REL670 2.2 IEC
Application manual