Network independent safety protocol for industrial controller
    3.
    发明授权
    Network independent safety protocol for industrial controller 有权
    工业控制器网络独立安全协议

    公开(公告)号:US06891850B1

    公开(公告)日:2005-05-10

    申请号:US09663824

    申请日:2000-09-18

    摘要: A highly reliable industrial control system is produced using a network running a standard serial protocol. A safety protocol is embedded within the standard serial protocol by adding to special error detecting data redundant with the protocol of the standard serial network. In addition an overarching protocol involving timing of messages is imposed to provide the necessary level of reliability in the standard serial network. This approach allows the safety protocol to be used with a wide variety of commercially available serial communication standards without modification of the media or the specialized integrated circuits used for that communication. Safety protocol may be implemented in an additional level for integrated circuits or through firmware changes in programmable aspects of the industrial controller components.

    摘要翻译: 使用运行标准串行协议的网络生产高度可靠的工业控制系统。 在标准串行协议中嵌入了安全协议,通过标准串行网络协议添加特殊的错误检测数据冗余。 另外,包含消息定时的总括协议是为了在标准串行网络中提供必要的可靠性水平。 这种方法允许将安全协议用于各种商业上可用的串行通信标准,而无需修改用于该通信的介质或专用集成电路。 安全协议可以在集成电路的附加级中实现,或者通过工业控制器组件的可编程方面的固件改变来实现。