The function blocks of IEC 61499 resp. the automation objects (functions) of PROFInet are the
“atomic” elements, i.e. the not more divisible base elements, which are used for the engineering view
and as the run time objects. They consists in a body containing the executable algorithms and they
have interconnectable external interfaces for input and output data. Furthermore the function blocks
resp. the automation objects obtain a new kind of interface which is not existing for the function blocks
of the PLC standard IEC 61131-3....