An Execution Environment for Real-Time Constrained Control Software based on IEC 61499
A. Zoitl, G. Grabmair, R. Smodic, T. Strasser - An Execution Environment for Real-Time Constrained Control Software based on IEC 61499 - INDIN 2007 Conference Proceedings Vol. 2, Wien, Österreich, 2007, pp. 1117-1122
The ever increasing complexity of manufacturing systems demands for new real-time control infrastructures. With the new standard IEC 61499 the IEC introduced a base for such a control infrastructure. An open issue of this standard is the missing definition of real-time execution. This work maps existing real-time execution theory to IEC 61499 execution ele-ments deriving the basic element for the new execution ap-proach—the event chain concept. A novel execution environ-ment for an efficient execution of reconfigurable real-time con-trol in IEC 61499 is presented.