【摘要】 本文提出一种小型分布式全数字现场控制系统结构及其令牌加主从的存取控制方式。研究了网络通信协议的设计方案与网络维护技术。针对令牌传递与数据帧通信提出确有实效的时间参量软件控制方法。更多还原

【Abstract】 A network construction of the small distributed all digital field control system and its access control style of token passing combined with master-slave have been presented in this paper. The design of network com- munication protocol and network maintenance technique are also studied. In accordance with the token passing transmission and data frame communication,a effective software control method in time domain is proposed.更多还原