3-40 UR FAMILY – COMMUNICATIONS GUIDE
MODEL IMPLEMENTATION CONFORMANCE STATEMENT (MICS) CHAPTER 3: IEC 61850 COMMUNICATION
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3.5.2.6  B90 bus differential (B_Dif)
This element is instantiated in the following products: B90.
Table 3-25: B90 bus differential data objects
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
InRefγ07 ORG BF# BKR TEST ON setting for setting 
group γ.
R
setSrcRef ObjectReference SP BF# BKR TEST ON for  group γ. reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
InRefγ08 ORG BF# AMP HISET OP A setting for setting 
group γ.
R
setSrcRef ObjectReference SP BF# AMP HISET OP A for  group γ.reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
InRefγ09 ORG BF# AMP HISET OP B setting for setting 
group γ.
R
setSrcRef ObjectReference SP BF# AMP HISET OP B for  group γ.reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
InRefγ10 ORG BF# AMP HISET OP C setting for setting 
group γ.
R
setSrcRef ObjectReference SP BF# AMP HISET OP C for  group γ.reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
InRefγ11 ORG BF# AMP LOSET OP A setting for setting 
group γ.
R
setSrcRef ObjectReference SP BF# AMP LOSET OP A for  group 
γ.
reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
InRefγ12 ORG BF# AMP LOSET OP B setting for setting 
group γ.
R
setSrcRef ObjectReference SP BF# AMP LOSET OP B for  group 
γ.
reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
InRefγ13 ORG BF# AMP LOSET OP C setting for setting 
group γ.
R
setSrcRef ObjectReference SP BF# AMP LOSET OP C for  group 
γ.
reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
BlkRefγ ORG BF# BLK setting for setting group γ.R
setSrcRef ObjectReference SP BF# BLK for  group γ. reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
LNName: B_DifPDIF# LDevice inst: Prot UR element: B90 Bus zone # differential element function
data obj. data attribute Type FC UR Name Description R/W/C
StrBia ACD BUS # BIASED PKP operand R
general BOOLEAN ST BUS # BIASED PKP R
dirGeneral ENUMERATED ST 1 for Forward, and it is mapped to same 
operand BUS # BIASED PKP (since 
differential DIR logic condition is part of 
differential logic)
R
Op ACT BUS # OP operand R
general BOOLEAN ST BUS # OP R
OpBia ACT BUS # BIASED OP operand R
general BOOLEAN ST BUS # BIASED OP R
OpUnBia ACT BUS # UNBIASED OP operand R
general BOOLEAN ST BUS # UNBIASED OP R
DpoBia SPS BUS # BIASED DPO operand, which is the 
inverse of BUS BIASED PKP
R
stVal BOOLEAN ST BUS # BIASED DPO R
PhDir1 SPS BUS # DIR operand R
LNName: B_BFaiRBRF# LDevice inst: Prot UR element: B90 BREAKER FAILURE logic element
data obj. data attribute Type FC UR Name Description R/W/C