IEC 61850 or function
name
ANSI Function description Line Differential
RED670
(Customized)
RED670 (B33)
RED670 (A42)
RED670 (B42)
RED670 (C42)
BST2M_305
BST2M_312
BST2M_322
BST2M_306
BST2M_313
BST2M_323
Binary signal transfer,
2Mbit transmit
1 1 1 1 1
LDCMTRN Transmission of analog
data from LDCM
1 1 1 1 1
LDCMTRN_2M_305
LDCMTRN_2M_306
LDCMTRN_2M_312
LDCMTRN_2M_313
LDCMTRN_2M_322
LDCMTRN_2M_323
Transmission of analog
data from LDCM, 2Mbit
1 1 1 1 1
LDCMRecBinStat1
LDCMRecBinStat3
Receive binary status from
remote LDCM
6/3 6/3 6/3 6/3 6/3
LDCMRecBinStat2 Receive binary status from
LDCM
3 3 3 3 3
LDCM2M_305
LDCM2M_312
LDCM2M_322
Receive binary status from
LDCM, 2Mbit
1 1 1 1 1
LDCM2M_306
LDCM2M_313
LDCM2M_323
Receive binary status from
remote LDCM, 2Mbit
1 1 1 1 1
Scheme communication
ZCPSCH 85 Scheme communication
logic for distance or
overcurrent protection
0-2 1-B35 1-B35 1-B35 1
ZPCPSCH 85 Phase segregated scheme
communication logic for
distance protection
0-2 1-B05 1-B05 1-B05 1-B05
ZCRWPSCH 85 Current reversal and
weak-end infeed logic for
distance protection
0-2 1-B35 1-B35 1-B35 1
ZPCWPSCH 85 Current reversal and
weak-end infeed logic for
phase segregated
communication
0-2 1-B05 1-B05 1-B05 1-B05
ZCLCPSCH Local acceleration logic 0-1 1-B35 1-B35 1-B35 1
ECPSCH 85 Scheme communication
logic for residual
overcurrent protection
0-1 1-C34 1-C34 1-C34 1
ECRWPSCH 85 Current reversal and
weak-end infeed logic for
residual overcurrent
protection
0-1 1-C34 1-C34 1-C34 1
DTT Direct transfer trip (see
Table 8)
0-1
Section 3 1MRK 505 378-UEN Rev. K
Available functions
40 Line differential protection RED670
Commissioning manual
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