Block-oriented control system on high speed Ethernet
    1.
    发明公开
    Block-oriented control system on high speed Ethernet 有权
    以太网阻塞方式

    公开(公告)号:EP1560365A2

    公开(公告)日:2005-08-03

    申请号:EP05009511.6

    申请日:2000-06-21

    IPC分类号: H04L12/24

    摘要: A distributed control system architecture (HSE) provides an open, interoperable solution optimized for integration of distributed control systems and other control devices in a high performance backbone, provides an open, interoperabie solution that provides system time synchronization suitable for distributed control applications operable over a high performance backbone, and provides an open, interoperable solution that provides a fault tolerant high performance backbone as well as fault tolerant devices that are connected to the backbone. The distributed control system architecture comprises a High speed Ethernet Field Device Access (HSE FDA) Agent, which maps services of a distributed control system, e.g., a fieldbus System, to and from a standard, commercial off-the-shelf (COTS) Ethernet/Internet component. The distributed control system architecture also comprises a High speed Ethernet System Management Kernel (HSE SMK) that operates to keep a local time, and keeps the difference between the local time and a system time provided by a time server within a value specified by the time sync class. The local time is used to time stamp events so that event messages from devices may be correlated across the system. The distributed control system architecture further comprises a High speed Ethernet Local Area Network Redundancy Entity (HSE LRE) that provides redundancy transparent to the applications running on the system. The HSE LRE of each device periodically transmits a diagnostic message representing its view of the network to the other Devices on the system. Each device uses the diagnostic messages to maintain a Network Status Table (NST), which is used for fault detection and selection from a redundant pair of resources.

    摘要翻译: 分布式控制系统架构(HSE)提供了一个开放的,可互操作的解决方案,优化用于在高性能骨干网上集成分布式控制系统和其他控制设备,提供开放的互操作性解决方案,提供适用于可在一个 高性能骨干网,并提供开放,可互操作的解决方案,提供容错的高性能骨干网以及连接到骨干网的容错设备。 分布式控制系统架构包括高速以太网现场设备接入(HSE FDA)代理,其将分布式控制系统(例如现场总线系统)的服务映射到标准的商业现货(COTS)以太网 / Internet组件。 分布式控制系统体系结构还包括一个高速以太网系统管理内核(HSE SMK),用于保持本地时间,并保持时间服务器提供的本地时间与系统时间之间的差异, 同步类。 本地时间用于时间戳事件,以便来自设备的事件消息可能会跨系统关联。 分布式控制系统架构还包括提供对在系统上运行的应用程序透明的冗余的高速以太网局域网冗余实体(HSE LRE)。 每个设备的HSE LRE周期性地将表示其网络视图的诊断消息发送到系统上的其他设备。 每个设备使用诊断消息来维护网络状态表(NST),用于从冗余对资源中进行故障检测和选择。