Function Call in ST

Inst_File_READ(
         EN:=TRUE,
         FILE:=:= 'flashdisk\SampleWAV',
         BUFFER:= ADR(abyReadData),
         SIZE:= 100,
         OFFSET:= 0,
         xReadDone:= Inst_File_Read.DONE,
         xReadError:= Inst_File_Read.ERR,
         wReadErNo:= Inst_File_Read.ERNO,
         dwReadSamplingFreq:= Inst_File_Read.SAMPLING_FREQ,
         wReadBlockAlign:= Inst_File_Read.BLOCK_ALIGN,
         wReadResolution:= Inst_File_Read.BITS_PER_SAMPLE,
         dwReadDataSize:= Inst_File_Read.DATA_SIZE,
         ReadLabel:= Inst_File_Read.LABEL_INFO,
         udiReadBytes:= Inst_File_ Read.COPIED_BYTES);