MC-41122400 SCHNEIDER诚信服务 PLC控制模块

MC-41122400 SCHNEIDER诚信服务 PLC控制模块

MC-41122400 SCHNEIDER诚信服务 PLC控制模块

根据工作功能图表或状态流程图等设计出梯形图即编程。这一步是整个应用系统设计的核心工作，也是比较困难的一步，要设计好梯形图，首先要十分熟悉控制要求，同时还要有的电气设计的实践经验。

当使用简易编程器将程序输入 PLC 时，需要先将梯形图转换成指令助记符，以便输入。当使用可编程序控制器的辅助编程软件在计算机上编程时，可通过上下位机的连接电缆将程序下载到 PLC 中去。

程序输入 PLC 后，应行测试工作。因为在程序设计过程中，难免会有疏漏的地方。因此在将 PLC 连接到现场设备上去之前，必需进行软件测试，以排除程序中的错误，同时也为整体调试打好基础，缩短整体调试的周期。

在 PLC 软硬件设计和控制柜及现场施工完成后，就可以进行整个系统的联机调试，如果控制系统是由几个部分组成，则应先作局部调试，然后再进行整体调试；如果控制程序的步序较多，则可行分段调试，然后再连接起来总调。调试中发现的问题，要逐一排除，直至调试成功。

MC-41122400 SCHNEIDER诚信服务 PLC控制模块

According to the work function chart or state flow chart design ladder diagram is programming. This step is the core work of the entire application system design, but also a more difficult step, to design the ladder diagram, we must first be very familiar with the control requirements, but also some practical experience in electrical design.

When using a simple programmer to input a program into a PLC, the ladder diagram needs to be converted into an instruction mnemonic for input. When the auxiliary programming software of the programmable controller is used to program on the computer, the program can be downloaded to the PLC through the connection cable of the upper and lower machine.

After the program is entered into the PLC, it should be tested. Because in the process of programming, there will inevitably be some omissions. Therefore, before connecting the PLC to the field equipment, it is necessary to carry out software testing to eliminate errors in the program, but also to lay a good foundation for the overall debugging and shorten the overall debugging cycle.

After the PLC hardware and software design and the control cabinet and the site construction are completed, the whole system can be on-line debugging, if the control system is composed of several parts, it should be local debugging first, and then the whole debugging; If there are more steps in the control program, it is feasible to stage debugging, and then connect the total tune. Troubleshoot the problems discovered during debugging until the debugging is successful.