驱动器集成多种工业实时总线的方法

A Method of Drivers Integrate Multiple Real-time Industrial Buses

随着工业4.0的提出,网络化是工业产品发展的必然趋势。提出了一种驱动器集成多种工业总线的方法,主要解决多总线统一、多轴在驱动控制级别的同步问题。与采用多个总线并行实现的方法不同,提供了一种基于IEC 61800-7的统一架构和接口。该架构的通信模型分为物理层、协议层、接口层和驱动应用层。协议层上层主要基于IEC 61800-7-201标准;接口层则对协议层进行封装,提供面向驱动的、统一的函数接口、对象集合和对象字典,最关键的是多轴驱动的同步接口;驱动应用层用于实现IEC 61800-7-301协议的功能,并以该协议作为驱动开发的核心,而不仅仅作为数据接口。在驱动器上实现了上述多工业总线的集成功能,它具有较高的灵活性和可扩展性。最后,通过实验验证了该方法的可行性,以及多轴的同步性能。

This paper proposes a method of drivers that can integrate multiple fieldbuses,such as ETHERNET Powerlink,EtherCAT,CANOpen,solved the synchronization of multi-axis at the motor control level,e.g.PWM interrupt,and provided an u- nified framework and interface according to IEC 61800-7.The communication model of the framework is divided to a physi- cal layer,a protocol layer,an interface layer and the driver application layer.The up protocol layer is based on IEC 61800-7- 201.The interface layer encapsulates the protocol layer and provide a consistent programming interface.The application layer realizes the IEC 61800-7-301 standard.Then this paper gives the implementation of above fieldbus on a driver,which demonstrated the flexibility and scalability.