现场级DCS通信系统的设计与应用  

Design and Application of Field-level DCS Communication System

作　　者：罗超[1] 庞国仲[1] 

机构地区：[1]中国科学技术大学自动化系,合肥230027

出　　处：《计算机工程》2003年第9期158-160,共3页Computer Engineering

摘　　要：介绍了一种用于互联DCS系统中各个监控模块的现场级通信系统。通过在一个标准协议上建立适合于实时数据传输的传输层，它既实现了异种机互联，又避免了一般字节流传输服务的额外开销。它是一个独立于具体DCS的通信子系统，具有双网冗余功能，可以进行动态的信道切换。This paper introduces a communication system that is used to interconnect all monitoring and control modules in a DCS. Thanks to a real-time-data-friendly transfer layer built on a standard protocol, it not only implements heterogeneous hosts interconnectivity, but also avoids the overhead of traditional byte-order transfer services. It is a DCS-independent communication sub-system with dual-network-redundancy and dynamic channel switching capacity.

关 键 词：通信系统 双网冗余 IPX 实时通信 

分 类 号：TN915.9[电子电信—通信与信息系统]