Programmable logic controller for safety systems with reduced cross-wiring
    1.
    发明授权
    Programmable logic controller for safety systems with reduced cross-wiring 有权
    具有减少交叉布线的安全系统的可编程逻辑控制器

    公开(公告)号:US06549034B1

    公开(公告)日:2003-04-15

    申请号:US10034387

    申请日:2001-12-27

    IPC分类号: H03K19173

    摘要: A safety system programmable logic controller provides for cross connection of inputs and outputs of separate independent control modules through the use of virtual wire connections passing as messages on a single logical backplane. The backplane executes a high level protocol that provides wire-like indications of communication failures mimicking those of separate physical wires.

    摘要翻译: 安全系统可编程逻辑控制器通过使用作为单个逻辑背板上的消息传递的虚拟线连接来提供单独的独立控制模块的输入和输出的交叉连接。 背板执行高级协议,提供与单独的物理线模拟的通信故障的线状指示。