In the programming method of PLC,the empirical method has always been favored by many practitioners,and data collection is particularly important in the empirical design method.First,collect typical program samples.The program should preferably have relatively complete components:control tasks,I/O assignments,hardware wiring diagrams,complete programs and comments.Secondly,it is necessary to understand the program,so as to decompose the components used to complete different tasks in the program.The subroutine or interrupt program that independently completes a specific function in each component should be stored in the program library in time.In order to save program design time and improve the success rate of program debugging when encountering similar control tasks in the subsequent programming process.
在PLC的编程方法中,经验法一直受到许多从业者的青睐,并且在经验设计法中资料收集显得尤为重要。首先收集典型程序样例,程序最好有较完整的组成部分:控制任务、I/O分配、硬件接线图、完整的程序及注释。其次要读懂程序,从而分解出程序中用于完成不同任务的组成部分,对于各组成部分中独立完成某一特定功能的子程序或者中断程序应及时收藏到程序库。以便在以后的编程过程中碰到实现类似控制任务时,节约程序设计时间、提高程序调试成功率。
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