Peer-to-peer register exchange controller for industrial programmable
controllers
    4.
    发明授权
    Peer-to-peer register exchange controller for industrial programmable controllers 失效
    用于工业可编程控制器的点对点寄存器交换控制器

    公开(公告)号:US4992926A

    公开(公告)日:1991-02-12

    申请号:US258779

    申请日:1988-10-17

    IPC分类号: G05B19/05

    摘要: A communication network for programmable logic controllers (PLC) wherein selected memory means of each PLC has at least two ports directly accessible by other PLC and certain registers of the PLC are identical. Each PLC further has an interblock gap timer to signal the PLC when its transmit time slice is to occur. The time slice consists of a block transmit time and an interblock gap time. The total update time has been optimized to engable efficient, high-speed transfer of blocks of data between the PLCs.

    摘要翻译: 用于可编程逻辑控制器(PLC)的通信网络,其中每个PLC的选择的存储器装置具有可由其他PLC直接访问的至少两个端口,并且PLC的某些寄存器是相同的。 每个PLC还具有一个间隔间隙定时器,用于在PLC发送其发送时间片时发信号通知PLC。 时间片由块发送时间和帧间间隔时间组成。 总更新时间已经优化,可以在PLC间实现高效,高速的数据传输。