ABB Relion 670 series, Technical Reference Manual, Page: 1079 / 1232

Table 679: LDCMRecBinStat3 Output signals
Name Type Description
COMFAIL BOOLEAN Detected error in the differential communication
YBIT BOOLEAN Detected error in remote end with incoming message
NOCARR BOOLEAN No carrier is detected in the incoming message
NOMESS BOOLEAN No start and stop flags identified for the incoming
message
ADDRERR BOOLEAN Incoming message from a wrong terminal
LNGTHERR BOOLEAN Wrong length of the incoming message
CRCERROR BOOLEAN Identified error by CRC check in incoming message
TRDELERR BOOLEAN Transmission time is longer than permitted
SYNCERR BOOLEAN Indicates when echo synchronication is used
REMCOMF BOOLEAN Remote terminal indicates problem with received
message
REMGPSER BOOLEAN Remote terminal indicates problem with GPS
synchronization
SUBSTITU BOOLEAN Link error, values are substituted
LOWLEVEL BOOLEAN Low signal level on the receive link
18.1.5 Setting parameters
Table 680: LDCMRecBinStat1 Non group settings (basic)
Name Values (Range) Unit Step Default Description
ChannelMode Disabled
Enabled
OutOfService
- - Enabled Channel mode of LDCM, 0=OFF, 1=ON,
2=OutOfService
TerminalNo 0 - 255 - 1 0 Terminal number used for line differential
communication
RemoteTermNo 0 - 255 - 1 0 Terminal number on remote terminal
CommSync Slave
Master
- - Slave Com Synchronization mode of LDCM,
0=Slave, 1=Master
OptoPower LowPower
HighPower
- - LowPower Transmission power for LDCM, 0=Low, 1=High
ComFailAlrmDel 5 - 500 ms 5 100 Time delay before communication error signal
is activated
ComFailResDel 5 - 500 ms 5 100 Reset delay before communication error
signal is reset
InvertPolX21 Disabled
Enabled
- - Disabled Invert polarization for X21 communication
1MRK505222-UUS C
Section 18
Remote communication
1073
Technical reference manual