FX3U-4DA-ADP FX3UPLC扩展模块可编程控制器系列

FX3U-4DA-ADP FX3UPLC扩展模块可编程控制器系列

FX3U-4DA-ADP FX3UPLC扩展模块可编程控制器系列

三菱plc程序设计一 程序设计 根据系统的控制要求，采用合适的设计来设计三菱PLC程序。程序要以满足系统控制要求为主线，逐一编写实现各控制功能或各子任务的程序，逐步完善系统的功能。

除此之外，程序通常还应包括以下内容：

1三菱PLC初始化程序。在三菱PLC上电后，一般都要做一些初始化的操作，为启动作必要的准备，避免系统发生误动作。初始化程序的主要内容有：对某些数据区、计数器等进行清零，对某些数据区所需数据进行恢复，对某些继电器进行置位或复位，对某些初始状态进行显示等等。

2三菱PLC检测、故障诊断和显示等程序。这些程序相对独立，一般在程序设计基本完成时再添加。

3三菱PLC保护和连锁程序。保护和连锁是程序中不可缺少的部分，必须认真加以考虑。它可以避免由于非法操作而引起的控制逻辑混乱，。二 三菱PLC程序模拟调试程序模拟调试的基本思想是，以方便的形式模拟产生现场实际状态，为程序的运行创造必要的环境条件。

根据产生现场信号的方式不同，模拟调试有硬件模拟法和软件模拟法两种形式。1硬件模拟法是使用一些硬件设备(如用另一台PLC或一些输入器件等)模拟产生现场的信号，并将这些信号以硬接线的方式连到PLC系统的输入端，其时效性较强。2软件模拟法是在三菱PLC中另外编写一套模拟程序，模拟提供现场信号，其简单易行，但时效性不易 模拟调试过程中，可采用分段调试的，并利用编程器的监控功能。

FX3U-4DA-ADP FX3UPLC扩展模块可编程控制器系列

Mitsubishi plc program design A program design according to the control requirements of the system, the use of appropriate design to design Mitsubishi PLC program. The program should meet the system control requirements as the main line, write the program to realize each control function or each subtask one by one, and gradually improve the function of the system.

In addition, the program should generally include the following:

1 Mitsubishi PLC initialization procedure. After the Mitsubishi PLC is powered on, it is generally necessary to do some initialization operations to make necessary preparations for startup to avoid misoperation of the system. The main contents of the initialization program are: clear some data areas, counters, etc., restore the required data in some data areas, set or reset some relays, display some initial states, and so on.

2 Mitsubishi PLC detection, fault diagnosis and display programs. These programs are relatively independent and are usually added when the program design is mostly complete.

3 Mitsubishi PLC protection and interlocking program. Protection and interlocking are an indispensable part of the procedure and must be carefully considered. It can avoid the control logic confusion caused by illegal operation. The basic idea of program simulation debugging is to simulate the actual state of the site in a convenient form to create the necessary environmental conditions for the operation of the program.

According to the different ways of generating the field signal, there are two forms of simulation debugging: hardware simulation and software simulation. 1 Hardware simulation method is the use of some hardware equipment (such as another PLC or some input devices, etc.) to simulate the field signal, and these signals are hardwired to the input end of the PLC system, its timeliness is strong. 2 Software simulation method is to write another set of simulation program in Mitsubishi PLC to simulate the field signal, which is simple and easy, but the timeliness is not easy to simulate the debugging process, can use the segmented debugging, and use the monitoring function of the programmer.