单微处理器实现双网口Open Powerlink从站通信解决方案  

Solution to Realize Dual-ports Network Communication for Open Powerlink Controlled Node by a Single Microprocessor

作　　者：文长明 项曦文 柴桂锋 储成君 尹若嵬 

机构地区：[1]中工科安科技有限公司,安徽合肥230022

出　　处：《中国仪器仪表》2018年第6期63-67,共5页China Instrumentation

基　　金：安徽省科技公关项目;高档数控系统执行部件数字化通讯关键技术研究;编号:1501021062

摘　　要：Open Powerlink协议栈是用户产品实现Powerlink工业实时以太网通信最经济、简单的方式。在开源的Open Powerlink资源包中常用一颗CPU和一颗FPGA组合实现双网口Powe rlink通信。本文通过工程实例,详细描述了一种用单微处理器(MCU)和一颗交换机(HUB)芯片组合,实现双网口Open Powerlink从站通信的软硬件实现方法,最小循环周期达到1ms,同步响应时间1μs,满足了一般工业IO设备的通信需求。Open Powerlink protocol stack, is the most economical and easiest way for users’ products to realize the real-time industry Ethernet communication of Powerlink. In the resource bundle of open Powerlink, a combination of a CPU and a FPGA is commonly usedto implement the dual-ports network communication for Powerlink. Through an engineering example, this paper describes in detail a kind of hardware/software realization method with single microprocessor and a HUB chip to realize dual-ports network communication for open Powerlink controlled node. The minimum cycle-time reaches 1 millisecond and the synchronous responsetime is 1 microsecond, which meets the communication requirements of the general industrial IO devices.

关 键 词：单微处理器 OPEN POWERLINK 双网口 交换机 工业IO设备 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP332[自动化与计算机技术—控制科学与工程]