Formal models for the verification of IEC 61499 function block based control applications

Industrial automation is currently on the cusp to the application of distributed systems based on distributed intelligence enabling distributed decision making within control. As one main technology within this field IEC 61499 based function block systems would be applied. But the usage of function block systems may cause problems which have to be avoided prior to the integration of a function block system in a control system. Hence, function block systems need to be examined using formal models and formal verification technologies. Therefore, formal models need to be created automatically during the function block system design. Within this paper an algorithm for automatic model design and its integration in the function block system designer would be described