Both teachers are leaders of PLC teaching team. It seems inappropriate to simply compare who teaches PLC. The two teachers' teaching is very classic, but the teaching methods are different and the emphasis is biased:

Teacher Cheng wrote the book "Analysis of PLC Principles and Programming Examples" and edited the teaching videos of PLC and touch screen, frequency converter, motor and other related applications. Generally speaking, his lectures are based on theory, and the basic knowledge of various instructions and the working principle of related components are introduced in detail, which is very basic. Macroscopically, some knowledge is also applicable to other brands of PLC.

Teacher Li Jincheng's detailed explanation of the application of Mitsubishi FX2NPLC functional instructions is biased towards the specific application analysis of each Mitsubishi functional instruction. The combination of pictures and examples makes Mitsubishi PLC users not worry about how to understand and use instructions.

Figuratively speaking, the course of study can lay a solid foundation and strong internal force for you on the road of learning PLC; Learning from Mr. Li Jincheng's class will enable you to break through the difficulties and obstacles on your way.