_IEC_HANDLE Input pParam POINTER TO tSysShmOpen
Param POINTER TO tSysShmReadByte
Param POINTER TO tSysShmWriteByte
_IEC_RESULT Input pParam POINTER TO tSysPortOut
_IEC_RESULT Input pParam POINTER TO tSysPortOutD
_IEC_RESULT Input pParam POINTER TO tSysPortOutW
Offset XWORD pResult POINTER TO UDINT
