Research and Realization of STEP-NC Program Interpreter for CNC System

The STEP-NC program was compared by the G/M code,the structure,characters and application in the computer numerical control(CNC) system of STEP-NC were analyzed.The data structure of the program interpreter was put forward based on the characters of STEP-NC.The algorithms of the Interpreter were researched.An example was made to test the validity of the algorithm.