3-248 UR FAMILY – COMMUNICATIONS GUIDEG2 IMPLEMENTATION MODEL FOR GOOSE CONFIGURATION VIA SCL CHAPTER 3: IEC 61850 COMMUNICATION3When applying such a template file at the system configuration stage, the configurator is used to put in the ExtRefelement a reference to the signal source appropriate to the description in desc element attribute. The configurator is alsoused to configure a GOOSE control block and dataset in the sending IED to publish the signal, and to put in the ExtRefelement a reference to this control block.3.10.8.3 SCL file exampleWere the example IED of clause 7 outlined earlier to support intermediate objects according to this annex, its ICD file thendefines each of them with the lines similar to the following in one of its LN or LN0 elements, in this example, in GGIO3. Notethat in this example only two such are defined; typically there are many more. The changes from the files are shown in red. lnClass="GGIO" prefix="ConOut" lnType="GGIO" inst="1"> name="InRef1" desc="Contact Output Control"> name="setSrcRef"> name="setSrcCB"> lnClass="GGIO" prefix="" lnType="ExtRefs" inst="3"> desc="unassigned GOOSE Boolean input #1" intAddr="Ind1"/> desc="unassigned GOOSE Analog input #1" intAddr="AnIn1"/> id="ExtRefs" lnClass="GGIO"> name="Ind1" type="SPS" /> name="AnIn1" type="MV" />To specify that the IED receives an unspecified "Overcurrent alarm" GOOSE signal and that this signal drives a contactoutput, the configurator copies the previous code to the template file for the subscribing IED modified as follows. lnClass="GGIO" prefix="ConOut" lnType="GGIO" inst="1"> name="InRef1" desc="Contact Output Control"> name="setSrcRef">TEMPLATELD1/GGIO3.Ind1.stVal name="setSrcCB"> lnClass="GGIO" prefix="" lnType="ExtRefs" inst="3"> desc="Overcurrent alarm" intAddr="Ind1"/> desc="unassigned GOOSE Analog input #1" intAddr="AnIn1"/>The CID for the example IED of clause 7 earlier then has these lines further modified as follows. lnClass="GGIO" prefix="ConOut" lnType="GGIO" inst="1"> name="InRef1" desc="Contact Output Control"> name="setSrcRef">E1Q2BP1LD1/GGIO3.Ind1.stVal name="setSrcCB"> lnClass="GGIO" prefix="" lnType="ExtRefs" inst="3"> desc="Overcurrent alarm" intAddr="Ind1"iedName="E1Q1BP1" ldInst="LD1" prefix="" lnClass="PIOC" lnInst="1" doName="Op" daName="general"srcLDInst="LD1" srcPrefix="" srcLNClass="LLN0" srcCBName="GoCB1"/> desc="unassigned GOOSE Analog input #1" intAddr="AnIn1"/>
