Mechatronic is combination of three main disciplines like mechanic, electronic and theory of control. CAD/CAM systems is part of them. The aim of this article is to describe how to use CAD system (NX Siemens) with mechatronic module to designee simulation process. That module allows to resolve problems from mechanical, electrical and automation discipline. As an example author creates simple machine using this module. That aim was established in that form has been obtained. The created simulation is working and allowing to resolve mechanical robot’s problems. The simulation was based on kinematics parameters of robot. The article is the introduction to further work on the use of the Mechatronics module to perform the most real simulation of the Fanuc ARC Mate 100iB industrial robot.