ALSTOM–V0701596-001102 输出刷新阶段则是根据运算和逻辑处理的结果

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ALSTOM–V0701596-001102 输出刷新阶段则是根据运算和逻辑处理的结果

ALSTOM–V0701596-001102 可编程逻辑控制器（PLC）的工作原理可以分为三个阶段，即输入采样、用户程序执行和输出刷新。这三个阶段被称为一个扫描周期。在PLC运行期间，CPU会以一定的扫描速度重复执行这三个阶段。

在输入采样阶段，PLC会读取所有输入端子的状态，并将其存储在内部存储器中。用户程序执行阶段则是PLC根据内部存储器中的程序指令进行运算和逻辑处理，得出结果。输出刷新阶段则是根据运算和逻辑处理的结果，刷新所有输出端子的状态，控制设备的动作。

此外，PLC的CPU相当于人的大脑，存储器是存储文件的，I/O功能则相当于人的五官，可以扫描文件并打印出来。编程器则用于用户程序的编制、调试检查和监视，还可以通过键盘调用和显示PLC的一些内部状态和系统参数。电源是提供PLC的能源。

总的来说，ALSTOM–V0701596-001102 PLC是一种专门为在工业环境下应用而设计的数字运算操作电子系统。通过编写程序写入存储器，然后由内部CPU进行运算、计算、定时及算术等操作来实现对设备和机械的动作控制。

ALSTOM–V0701596-001102 输出刷新阶段则是根据运算和逻辑处理的结果

ALSTOM- V0701596-001102 The working principle of a programmable logic controller (PLC) can be divided into three stages, namely input sampling, user program execution and output refresh. These three stages are called a scan cycle. During the operation of the PLC, the CPU will repeat these three stages at a certain scanning speed.

During the input sampling phase, the PLC reads the state of all input terminals and stores it in internal memory. In the execution stage of the user program, the PLC performs operations and logical processing according to the program instructions in the internal memory and obtains the results. In the output refresh phase, the state of all output terminals is refreshed according to the results of calculation and logical processing, and the action of the device is controlled.

In addition, the CPU of the PLC is equivalent to the human brain, the memory is to store files, and the I/O function is equivalent to the human features, which can scan files and print them out. The programmer is used for the preparation of the user program, debugging inspection and monitoring, and can also call and display some internal status and system parameters of the PLC through the keyboard. The power supply is the energy source that provides the PLC.

In general, the ALSTOM- V0701596-001102 PLC is a digital arithmetic operation electronic system specially designed for applications in industrial environments. By writing a program into the memory, and then by the internal CPU operation, calculation, timing and arithmetic operations to achieve the control of equipment and machinery.