The connection mode of operation module is to connect various standard operation modules with lines to form a variety of control loops, and finally automatically generate control software. This is a configuration method with intuitive information flow and control functions. The judgment table mode is a pure form of filling in tables. As long as you fill in the content item by item or answer questions according to the requirements of the configuration table, this mode makes use of the user's configuration operation. The step recording method is a programming method based on language instructions, with a large degree of programming freedom. Various responsible functions can be achieved through some techniques, but the configuration efficiency is low. In addition, due to the lack of intuitive configuration methods, configuration engineers often have high requirements for technical proficiency and configuration experience.