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3-62 UR FAMILY – COMMUNICATIONS GUIDE
MODEL IMPLEMENTATION CONFORMANCE STATEMENT (MICS) CHAPTER 3: IEC 61850 COMMUNICATION
3
Table 3-56: Line current differential general data objects
LNName: LinDfPDIF1 LDevice inst: Prot UR element: Line Differential element (ANSI 87L) phase and general
functions
data obj. data attribute Type FC UR Name Description R/W/C
Str ACD only instantiated in L90 R
general BOOLEAN ST 87L DIFF OP R
dirGeneral ENUMERATED ST 1, the code for forward R
phsA BOOLEAN ST 87L DIFF OP A R
dirPhsA ENUMERATED ST 1, the code for forward R
phsB BOOLEAN ST 87L DIFF OP B R
dirPhsB ENUMERATED ST 1, the code for forward R
phsC BOOLEAN ST 87L DIFF OP C R
dirPhsC ENUMERATED ST 1, the code for forward R
Op ACT only instantiated in L90 R
general BOOLEAN ST 87L TRIP OP R
phsA BOOLEAN ST 87L TRIP OP A R
phsB BOOLEAN ST 87L TRIP OP B R
phsC BOOLEAN ST 87L TRIP OP C R
Op ACT only instantiated in L30 R
general BOOLEAN ST 87L DIFF OP R
Tr3p ACT only instantiated in L90 R
general BOOLEAN ST 87L TRIP 3P OP R
Tr1p ACT only instantiated in L90 R
general BOOLEAN ST 87L TRIP 1P OP R
RxTr1 ACT only instantiated in L90 R
general BOOLEAN ST logical OR of phsA, phsB, phsC R
phsA BOOLEAN ST 87L DIFF RECVD DTT A R
phsB BOOLEAN ST 87L DIFF RECVD DTT B R
phsC BOOLEAN ST 87L DIFF RECVD DTT C R
RxTr1 ACT only instantiated in L30 R
general BOOLEAN ST 87L DIFF RECVD DTT R
TxTr ACT 87L DIFF KET DTT operand, which
becomes on when the differential
element is sending direct transfer trip to
the remote terminals.
R
general BOOLEAN ST 87L DIFF KET DTT R
PFLLfail SPS 87L DIFF PFLL FAIL operand, which
becomes on when the differential
element’s phase and frequency lock loop
(PFLL) has failed.
R
stVal BOOLEAN ST 87L DIFF PFLL FAIL R
Asymmetr
y
SPS 87L DIFF CH ASYM DET operand, which
becomes on when the differential
element’s has detected substantial
communications channel asymmetry.
R
stVal BOOLEAN ST 87L DIFF CH ASYM DET R
ChFailζ SPS 87L DIFF CH ζ FAIL operand, which
becomes on when the differential
element’s has detected communications
channel ζ failed.
R
stVal BOOLEAN ST 87L DIFF CH ζ FAIL R
LosPktζ SPS 87L DIFF CHζ LOSTPKT operand, which
becomes on when the differential
element’s has detected the lost packet
threshold has been exceeded on channel
ζ.
R
stVal BOOLEAN ST 87L DIFF CHζ LOSTPKT R