Abstract:Aiming at the current manufacturing enterprisesdemand for low-cost and intelligent upgrade for cutting processing unit,an intelligent transformation scheme with PLC as the control core,HMI as the human-computer interaction medium and industrial robot as the handling unit was proposed.By using remote I/O modules,the data exchange between the CNC lathe,machining center and industrial robot with PLC was realized through Profinet industrial ethernet.The remote I/O module import,system hardware configuration,PLC programming,HMI interface design were completed in Siemens TIA software,and the debugging with the compiled industrial robot program was carried out.The results show that the proposed scheme has a positive role in improving the operation safety level, reducing personnel labor intensity and reducing personnel demand.