PLC learning needs some indispensable relevant knowledge - Database & Sql Blog Articles

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The plc program is a specific process that directly acts on the object, so understanding the specific process of the object is very important. In the process of communication with the user, I will use the knowledge of Unit Operation that I have mastered to analyze the user's process, assist the user to organize the various logical relationships in the process control, and even include various electrical and hardware configurations. This is due to the profession I have studied. Of course, you can't ask all engineers who work on PLC programs to have my experience. But there are two kinds of knowledge that are indispensable: First, the hardware knowledge of process electrical, including sensors, transmitters (secondary electrical) and PLC itself, which is the basis for building control systems; second, process control theory, including The principles and applications of various control models, the most important of which are the two-position adjustment and PID adjustment models. PID regulation is currently the most widely used process control method, and it is highly variable. The best way to learn PID is to read. Almost all books that explain process control have content about PIDs. Reading more basic related books is very useful for understanding PID. I found that many netizens lacked this knowledge when they entered the PLC field. This is not terrible; the terrible thing is that the parties cannot calm down to make up for the shortcomings of knowledge. We should not blame the school for not teaching the content, but to pay attention to how to learn this knowledge. Many of the problems encountered in the work are not mentioned in the school. This cannot be the reason for our refusal to work. We should respond to these issues with a positive attitude. My experience is that the knowledge that is learned to solve problems at work is easier to remember than the things that go to school.