AB 1794-OB8EP 触摸屏 控制器

AB 1794-OB8EP 触摸屏 控制器

AB 1794-OB8EP 触摸屏 控制器

人工智能会在DCS各级实现。和FF现场总线类似，以微处理器为基础的智能设备，如智能/O智能PID控制、智能传感器、变送器、执行器、智能人接口及可编程调节器相继出现。

对于工控机，能够简单操作是好的，这也将成为未来的发展方向，简易操作可以改善人机接口，简化编程、操作面板使用符号键，尽量采用对话方式等，以方便用户使用。

可编程逻辑控制器以扫描方式依次地读入所有输入状态和数据，并将它们存入I/O映象区中的相应的单元内。输入采样结束后，转入用户程序执行和输出刷新阶段。在这两个阶段中，即使输入状态和数据发生变化，I/O映象区中的相应单元的状态和数据也不会改变。因此，如果输入是脉冲信号，则该脉冲信号的宽度大于—个扫描周期，才能在任何情况下，该输入均能被读入。

AB 1794-OB8EP 触摸屏 控制器

Ai will be implemented at all levels of DCS. Similar to FF fieldbus, microprocessor-based intelligent devices such as intelligent /O intelligent PID control, intelligent sensors, transmitters, actuators, intelligent human interfaces and programmable regulators have emerged.

For industrial computer, it is good to be able to simple operation, which will also become the future direction of development, simple operation can improve the man-machine interface, simplify programming, the use of symbol keys in the operation panel, and try to use dialogue methods to facilitate user use.

The programmable logic controller scans in all input states and data successively and stores them in the corresponding cell in the I/O map area. After the end of the input sampling, the user program execution and output refresh phase. In both phases, even if the input state and data change, the state and data of the corresponding unit in the I/O map area will not change. Therefore, if the input is a pulse signal, the width of the pulse signal is greater than one scan cycle, so that the input can be read in any case.