FB_[IEDName]Gse

This function block connects a network adapter of the TwinCAT control computer with the GOOSE control blocks in the data model and controls the execution of these control blocks.

To be able to use GOOSE communication, the real-time network adapter must be commissioned and linked. This is explained in RT Ethernet adapter configuration.

Full description

FUNCTION_BLOCK FB_[IEDName]Gse IMPLEMENTS I_GseLinkStatusEventSink
VAR_INPUT
    fbAdapter   : FB_GseAdapterClass := (ipLinkStatus:=THIS^);
END_VAR
VAR
    eLinkStatus : E_GseLinkStatus;
    bSuccess    : BOOL;
    ipError     : I_ServiceErrorClass;
    bStart      : BOOL := TRUE;
    bStop       : BOOL;
    bUpdate     : BOOL;
END_VAR

bSuccess:= fbAdapter.Execute(ipError=>ipError);

IF bStart THEN
    bStart:= FALSE;
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb01.Publisher.Start(ipAdapter:=fbAdapter, ipError=>ipError);
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb02.Publisher.Start(ipAdapter:=fbAdapter, ipError=>ipError);
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb03.Publisher.Start(ipAdapter:=fbAdapter, ipError=>ipError);
ELSIF bStop THEN
    bStop:= FALSE;
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb01.Publisher.Stop(ipError=>ipError);
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb02.Publisher.Stop(ipError=>ipError);
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb03.Publisher.Stop(ipError=>ipError);
ELSIF bUpdate THEN
    bUpdate:= FALSE;
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb01.Publisher.Update(ipError=>ipError);
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb02.Publisher.Update(ipError=>ipError);
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb03.Publisher.Update(ipError=>ipError);
ELSE
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb01.Publisher.Execute(ipError=>ipError);
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb02.Publisher.Execute(ipError=>ipError);
    bSuccess:= fb[IEDName].IEDLD1.LLN0.gocb03.Publisher.Execute(ipError=>ipError);
END_IF

The GSE block implements the "I_GseLinkStatusEventSink" interface. The method: "OnLinkStatusChange" belongs to this interface implementation and is called whenever the status of the network connection (at the network adapter) changes. The PLC application can, for example, query or check the network connection status via "eLinkStatus" variable.

METHOD OnLinkStatusChange
VAR_INPUT
    ipAdapter : I_GseAdapterClass;
    eStatus   : E_GseLinkStatus;
END_VAR
VAR
END_VAR

eLinkStatus:= eStatus;