140SAI94000S

140SAI94000S

(1)编程准备。检查PLC与计算机的连接是否正确，计算机的RS232C端口与PLC之间是否的揽线及转换器连接:使PLC处于“停机”状态;接通计算机和PLC的电源。

(2)编程操作。

①打开GX Developer编程软件，新建一个工程，并命名。

②采用梯形图编程的方法，编辑图1所示的梯形图程序并保存。

(3)程序的传送。

  ①程序的写出。将编辑好的程序写入到PLC用户存储器RAM中，然后进行核对。

  ②程序的读入。通过[读入]操作将PLC用户存储器中程序读入到计算机中，然后进行核对。

  ③程序的核对。在上述程序核对过程中，只有当计算机两端程序比较无误后，方可认为程序传送正确，否则应查清原因，重新传送。

2. 运行操作

  程序传送到PLC用户存储器后，可按以下操作步骤运行程序。

  ①根据梯形图程序，将PLC的输入/输出端与部输入信号连接好，PLC的输入/输出端编号及说明如表1所示。

  ②接通PLC运行开关，PLC面板上RUN灯亮，表明程序已投入运行。

  ③结合控制程序，操作有关输入信号，在不同输入状态下观察输入/输出指示灯的变化，若输出指示灯的状态与程序控制要求*，则表明程序运行正常。

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