Hitachi 670 Series Application Manual page 94

Section 5
Communication set-up
LHMI info
Setting/signal
YBIT
LOWLEVEL
ADINV1 – ADINV9
1) Approximately 75% RXD is typical if, for example, two master clocks are present in the telecommunication network.
Table 30:
LHMI info
Setting/signal
NoOfShInterr
NoOfMedInterr
NoOfLongInterr
CommStatus
COMFAIL
COMALM
NoOfTXD
NoOfRXD
TransmDelay in Echo
mode 1)
Transmission delay
in GPS mode 1)
AsymDelay 1)
OPTPOWER
BLKDIFF
ADDRERR
RxAddress
ConfAddress
RED_ACT
CRCERROR
TRDELERR
SYNCERR
REMBLKDF
GPSERROR
Table continues on next page
88
Normal Faulty
(example) (example)
0
0
0
Information available on the local HMI (64kb LDCM)
Normal Faulty
(example) (example)
50
10
5
OK
0
0
100.00
100.00
2 ms
2 ms
0.5 ms
–14.895
0
0
2
2
0/1
0
0
0
0
0
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Specification
1 Status
1 Status
1 Status
Specification
- Counter
- Counter
- Counter
NoRXD Status
1 Status
1 Status
> 100 Status %
Status %
1)
> 75
- Time
- Time
- Setting / GPS
ms
dBm Value
1 Status
1 Status
≠ 2
-
- Status
1 Status
1 Status
1 Status
1 Status
1 Status
1MRK505382-UEN Rev. K
Description
Detected error in an incoming message at
the remote end
Low signal level in the receive link
Analog channel activated (configured)
Description
No of short interruptions, 20-50 ms
No of medium interruptions, 50-200 ms
Number of long interruptions, > 200 ms
Communication status/no of received
messages
Communication failure, differential
protection blocked. Analog values are
substituted with zero, ref. disturbance
recorder
Communication alarm (COMFAIL>set
delay 100 ms in service, 5-10 ms for fault
tracing)
No of sent messages
No of received messages
Round trip delay/2 + set asymmetric delay
Actual transmission delay + measured
asymmetric delay (+or -)
Asymmetric delay (Setting in echo mode
or measured with GPS timing)
Measured received optical power
Differential protection blocked by
communication
Incoming message from a non-valid
address
Received address from remote end
Configured remote address
Redundant channel 0=inactive 1=active
CRC error in incoming message
Transmission delay error, > 40 ms
Error in echo timing synchronization
Error in received message at remote end
Error in GPS synchronization at local or
remote end
Communication set-up, 670/650 series
Application Guide