size of the string to be encoded
the function SMC_ErrorString to determine the
Type Message OpcUa_String UserName OpcUa_String
Data OpcUa_ByteString Signature OpcUa_ByteString
_AllNumericTypesUnion stringValue STRING
Type pstText Visu_TypeString pstTextId Visu_TypeString
VarName : STRING(15) In [...] VarName STRING(15) Input idx
VarName : STRING(15) In [...] VarName STRING(15) Input idx