Plc programming entry - How to learn PLC programming - Solutions - Huaqiang

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It is important to get through the theory of plc programming. Without theoretical preparation or guidance in this area, it is easy to do simple things only by groping in practice. Complex is not easy to do. Not only does it have no way to start, but it also takes a lot of time and effort, and it is difficult to compile programs that are more efficient and of higher quality, often with half the effort.
However, the specific practice of programming, as well as the knowledge or skills gained in this practice, that is, experience, is also important. Without experience, only theory, neither can understand the theory deeply, nor can it apply the theory flexibly. This is just like learning mathematics. If you only know some theorems or remember some formulas, you can't learn well without doing the corresponding exercises. Needless to say, any theory is only a summary of experience, and in the end it comes from practice.
1. Experience and experience accumulated by others, as well as their own, are very important. The former must rely on careful study, the latter must rely on the accumulation of heart, must be in a certain time and necessary energy.
The experience of others has been published or published in magazines. Some are careful to learn from others, but most of them are my own experiences. All the examples have been tested by me and have proven to be feasible. I think that will be the same in other books or magazines. So learning the experience of Yang Gong is necessary.
There is also the experience of your colleagues, it is also worth learning. This kind of experience is very close to you and is easy to learn from.
Your own experience is the most important. To accumulate your own experience in your own practice. At the same time, it is best to learn some of the experiences of others, and to do some tests in person, so that you can have similar experiences, and then turn these experiences into your own. This is also an important accumulation of my own experience.
There are still some failed experiences, which are often not open, but they must be learned and accumulated.
The accumulation of experience should be recorded by your own brain, and it must be recorded by computer. It's best to make some classifications and build a library of your own use so that you can refer to them at any time.
2. The experience of sublimation experience has yet to be sublimated. Sublimation has three levels:
The lowest level is to build a typical library for future use. If the program is complicated, you can also build some function blocks, or subroutines, for later reference.
Second, we must summarize the effective algorithm. Such as a single button to start and stop the library.
The highest level of sublimation is to raise the experience to the theoretical level and contribute to the enrichment of PLC programming theory. I think that with the popularity and improvement of PLC use, there will be more and more sublimation from experience, but can be used to guide the practice of plc programming theory.
3. Experience application experience accumulation and experience sublimation are for application. There are three aspects to experience application:
1) Used as an engineering design template. When designing a new system, select one or several successful projects that are similar to the current design project and design the model. This can reduce the workload of the design and increase the success rate of the design. This is also a big benefit of reusable information.
2) Used as a reference for programming. When the unsuccessful project can be used as a template, there is still a considerable part of the control logic in the newly designed logic. The existing typical logic can be adopted or borrowed, which can also reduce the design workload and increase the design success rate.
3) Used as a reference for algorithm design. Some successful algorithms from the past can be used when there is no reference to the model and no typical use.
Experience is precious, but experience, especially personal experience, is always limited. Therefore, the application of experience is also combined with programming theory.