Where should I start learning PLC? ,,,, I think I can do some projects and so on after learning, maybe I can do some projects.

Find a simple book, first look at the working principles of various commonly used components, and then convert simple circuits into PLC programming. PLC is easy to get started, but difficult to get behind. Mainly rely on the accumulation of project experience.

Personally, learning PLC is mainly engaged in the development of 1. Non-standard automation equipment, and many places use PLC. 2. The maintenance of factory automation equipment, including coal mine, petroleum, medical care, automobile and other industries with high degree of automation, is widely used.

For the simplest example, our factory often asks for automation of some equipment, and then we need suppliers to help us make the equipment. Suppliers will design according to our requirements, part of which is mechanism design and part is electrical circuit design. Electrical circuit design is to plan which electronic components can complete the function, and then use PLC to program and control the mechanism and electrical components to achieve the predetermined action. Now the most convenient method is to use PLC to control.

As for what can be done, there are too many projects, such as elevators, automatic feeding equipment, automatic assembly equipment and so on.