DeviceNet I/O数据触发方式的研究  

Study of I/O Data Trigger Mode in DeviceNet

作　　者：孙凡金[1] 佟为明[1] 刘勇[1] 

机构地区：[1]哈尔滨工业大学,黑龙江哈尔滨150001

出　　处：《低压电器》2004年第12期42-45,共4页Low Voltage Apparatus

基　　金：哈尔滨市重点科技攻关项目(2004AA1CG122)

摘　　要：生产者/消费者网络模式是一种能够提供多点传送功能的新型网络技术。在生产者/消费者网络模式的基础上,DeviceNet支持位选通、轮询、状态改变/周期等多种数据触发方式,可构建主/从、多主和对等网络结构。介绍了生产者/消费者网络模式的通信特性,分析了位选通、轮询、状态改变/周期等数据触发方式的通信机理。Producer/consumer network model is the latest networking technology which can implement multicast function. Based on this model, DeviceNet provides manifold I/O data trigger modes, such as bit-strobe, poll, change-of-status (COS)/cyclic, and can construct master/slave, multi-master and peer-to-peer network architecture. The communication characteristics of producer/consumer network model was introduced, and communication mechanisms of bit-strobe, poll, change-of-state (COS)/cyclic I/O data trigger modes were analyzed.

关 键 词：生产者 消费者 轮询 位选通 状态改变 周期 

分 类 号：TP336[自动化与计算机技术—计算机系统结构]