Blochwitz, T.T.BlochwitzAltmann, S.S.Altmann2022-03-102022-03-102007https://publica.fraunhofer.de/handle/publica/355652Normally, development and test of PLC programs can only be done if the machine itself is available. A solution is going to be presented, which allows simulating the behavior of the machine already during construction. At first the required machine model has to be constructed, which requires additional efforts. To gain maximal profit the model should be usable for different problems during the design process. The presented procedure shows the stepwise refinement of the machine model starting from the concept phase, through dimensioning of the drive and the controls up to the virtual start-u on the PLC.demodelingSimulationvirtual start-up621004conference paper