Mapping of the Characteristics of a Drive Functioning in the System of CAD Class Using the Integration of a Virtual Controller with a Virtual Model of a Drive

Abstract

The paper presents the method of mapping functioning of a 3D model of reciprocating motion drives of a robotic system, which is the final stage of a works transport system, created in the Siemens PLM NX 8.5 CAD/CAE environment. For this purpose, the 3D model of the considered robotized system, prepared for motion simulation in the “Motion Simulation” module of the Siemens NX system. In the elaborated model was defined the suitable components of the system and the joints between them. These components and joints were defined in such a way as it is possible to map functioning of a real drive in a virtual environment. The basis of functioning of such created drive model is information transmitted from a virtual controller basing on the DDE (Dynamic Data Exchange) standard of data exchange. In the adopted communication method between the CAD system and the virtual PLC controller is required to transfer displacement values at individual nodes in such a way as to map functioning of the real system. Therefore in the control program of a virtual controller is stored functioning characteristic of the considered drives system of the reciprocating motion. As the result of conducted work the virtual 3D model, prepared in a system of the CAD/CAE class, was integrated with the virtual controller, taking into account the mapping of functioning characteristic of drives.