NI AD-091A现货NI AD-091A

NI AD-091A
NI AD-091A
NI AD-091A
控制系统的功能和管理系统的功能应严格划分界限
   由于可编程序控制器组成的过程控制系统中的实时性要求很高，而网络通信是允许暂时失去通信联系，过后自己能重新恢复，但是在重新恢复之前这一间隔时间可编程序控制器会处于失控。另外，在用多个可编程序控制器系统组成一个大系统时，对于主控制的关键命令，除了使用可编程序控制器自身的网络通信传送它的信息外，好有使用它的I/O点做成的硬件联锁，特别是两者之间“急停”的处理

FANUC SERIES 16 AND SERIES 18 FOR LATHE OPERATORS MANUAL GFZ-61804E/04

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