Taking SMC Dialog Plus intelligent motor starter controller of A-B company as the main research object of starting technology, four kinds of starter technologies were achieved through setting different internal parameters to SMC Dialog Plus, such as soft starting, limit current starting, double slop starting and full voltage starting. The DeviceNet and Ethernet were respectively the bottom and top data transmission media, based on CAN protocol exploitation. Firstly, RSLinx was used to do the Ethernet and DeviceNet's configuration. Then, configuration software RSNetWorx for DeviceNet was used to map the data that came from the SMC Dialog Plus controller into the scanning module of 1769SDN by communication module of 1203GK5. RSLogix500 was used to program the ladder diagram of the system. So the data communication is achieved between SMC Dialog Plus and MicroLogix1500 programmable logical controller (PLC), thereby control of the motor's start and stop is implemented by the DeviceNet.