Table 31: Information available on the local HMI (64kb LDCM)
LHMI info
Description
Setting/signal
Normal
(example)
Faulty
(example)
Specification
NoOfShInterr
50
-
Counter
No of short interruptions, 20-50 ms
NoOfMedInterr
10
-
Counter
No of medium interruptions, 50-200 ms
NoOfLongInterr
5
-
Counter
Number of long interruptions, > 200 ms
CommStatus
OK
NoRXD
Status
Communication status/no of received
messages
COMFAIL
0
1
Status
Communication failure, differential
protection blocked. Analog values are
substituted with zero, ref. disturbance
recorder
COMALM
0
1
Status
Communication alarm (COMFAIL>set
delay 100 ms in service, 5-10 ms for
fault tracing)
NoOfTXD
100.00
> 100
Status %
No of sent messages
NoOfRXD
100.00
> 75
1)
Status %
No of received messages
TransmDelay in
Echo mode 1)
2 ms
-
Time
Round trip delay/2 + set asymmetric
delay
Transmission delay
in GPS mode 1)
2 ms
-
Time
Actual transmission delay + measured
asymmetric delay (+or -)
AsymDelay 1)
0.5 ms
-
Setting / GPS
ms
Asymmetric delay (Setting in echo
mode or measured with GPS timing)
OPTPOWER
–14.895
dBm
Value
Measured received optical power
BLKDIFF
0
1
Status
Differential protection blocked by
communication
ADDRERR
0
1
Status
Incoming message from a non-valid
address
RxAddress
2
≠ 2
Received address from remote end
ConfAddress
2
-
Configured remote address
RED_ACT
0/1
-
Status
Redundant channel 0=inactive 1=active
CRCERROR
0
1
Status
CRC error in incoming message
TRDELERR
0
1
Status
Transmission delay error, > 40 ms
SYNCERR
0
1
Status
Error in echo timing synchronization
REMBLKDF
0
1
Status
Error in received message at remote
end
GPSERROR
0
1
Status
Error in GPS synchronization at local or
remote end
NOCARR
0
1
Status
No carrier is detected in the incoming
message. Group signal - Logical OR for:
•
LINK_LOST (no input data stream
at the optical receiver)
•
SYNC_LOST (clock
synchronization is lost)
•
C37 ERROR (error at the C37.94
fiberoptic receiver: faulty format)
NOMESS
0
1
Status
No start and stop flags in the incoming
message
Table continues on next page
1MRK 505 382-UEN E
Section 5
Communication set-up
Communication set-up, 670/650 series
87
Application Guide
© Copyright 2017 ABB. All rights reserved
Summary of Contents for Relion 670 series
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