To improve the speed and the reliability of manufacturing system modeling,an agile simulation modeling technology was proposed based on Petri nets and eM-Plant.A graphical Petri net modeling tool was developed based on object-oriented idea and Visual Basic programming tool to achieve the modeling and analysis of Petri net.The key technologies of software development were analyzed.Through the COM interface of eM-Plant,the internal functions of eM-Plant were called to configure the objects,to create the layou...