ABB Relion 670 series - Page 1223

PID-4013-MONITOREDDATA v4
Table 938: LDCMRecBinStat2 Monitored data
Name Type Values (Range) Unit Description
CommStatus BOOLEAN 0=Ok
1=SyncErr
2=No RXD
3=LocalGPSErr
4=RemGPSErr
5=LocAndRemG
PSErr
6=LocalADErr
7=RemADErr
8=LocAndRemA
DErr
9=AddressErr
10=FreqConfErr
11=LatencyConf
Err
- Status of communication link
PID-3874-MONITOREDDATA v4
Table 939: LDCMRecBinStat3 Monitored data
Name Type Values (Range) Unit Description
CommStatus BOOLEAN 0=Ok
1=SyncErr
2=No RXD
3=LocalGPSErr
4=RemGPSErr
5=LocAndRemG
PSErr
6=LocalADErr
7=RemADErr
8=LocAndRemA
DErr
9=AddressErr
10=FreqConfErr
11=LatencyConf
Err
- Status of communication link
19.1.7 Operation principle
M12452-14 v3
The communication is made on standard ITU (CCITT) PCM digital 64 kbit/s channels. It is a two-
way communication where telegrams are sent every 5 ms (same in 50 Hz and 60 Hz), exchanging
information between two IEDs. The format used is C37.94 and one telegram consists of start and
stop flags, address, data to be transmitted, Cyclic Redundancy Check (CRC) and Yellow bit (which
is associated with C37.94).
en01000134.vsd
Start
flag
Information CRC
Stop
flag
8 bits n x 16 bits 8 bits16 bits
IEC01000134 V1 EN-US
Figure 618: Data message structure
1MRK 502 066-UUS B Section 19
Remote communication
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Technical manual