ABB Relion 670 series - Page 1137

PID-4168-MONITOREDDATA v4
Table 844: MU4_4I_4U Monitored data
Name Type Values (Range) Unit Description
MUDATA BOOLEAN 0=Ok
1=Error
- Fatal error, serious data loss
SYNCH BOOLEAN 0=Ok
1=Error
- Operational mode on ethernet link
SMPLLOST BOOLEAN 1=Yes
0=No
- Sample lost
MUSYNCH BOOLEAN 0=Ok
1=Error
- Synchronization lost in MU
TESTMODE BOOLEAN 1=Yes
0=No
- MU in test mode
PID-4169-MONITOREDDATA v4
Table 845: MU5_4I_4U Monitored data
Name Type Values (Range) Unit Description
MUDATA BOOLEAN 0=Ok
1=Error
- Fatal error, serious data loss
SYNCH BOOLEAN 0=Ok
1=Error
- Operational mode on ethernet link
SMPLLOST BOOLEAN 1=Yes
0=No
- Sample lost
MUSYNCH BOOLEAN 0=Ok
1=Error
- Synchronization lost in MU
TESTMODE BOOLEAN 1=Yes
0=No
- MU in test mode
PID-4170-MONITOREDDATA v4
Table 846: MU6_4I_4U Monitored data
Name Type Values (Range) Unit Description
MUDATA BOOLEAN 0=Ok
1=Error
- Fatal error, serious data loss
SYNCH BOOLEAN 0=Ok
1=Error
- Operational mode on ethernet link
SMPLLOST BOOLEAN 1=Yes
0=No
- Sample lost
MUSYNCH BOOLEAN 0=Ok
1=Error
- Synchronization lost in MU
TESTMODE BOOLEAN 1=Yes
0=No
- MU in test mode
18.5.6 Operation principle
GUID-A1D31CDA-1FE2-4BC0-A472-1B35E73CA1F2 v3.1.1
The ABB merging units (MUs) are situated close to primary equipment, like circuit breakers,
isolators, etc. The MUs have the capability to gather measured values from measuring
1MRK 502 066-UUS B Section 18
Station communication
1131
Technical manual