It really belongs to the category of industrial automation and is a very practical job requirement, so it is not as simple as just tapping the keyboard on the computer and learning "programming". These six problems cannot be solved simply by studying theoretical subjects. Of course, theory is the foundation, and it is a step that can make rapid progress. Since you are a software major, there should be nothing missing in theory. The key is to look at some technical courses or materials, such as PLC, PROFIBUS and other books or materials, which are available online. There are also robot data on the Internet, such as KUKA, but it is rare, simple and of no practical value. Many people learn PLC because it is widely used. However, for industrial robots, limited by the company's scale, strength and application, there are fewer people in contact.

Nowadays, robot systems are closely linked with PLC and are very practical, such as welding system and spraying system. Different applications have different requirements for robots. Bus transmission includes single PROFIBUS, hybrid system and optical fiber transmission. The items you mentioned have no specific contact with robots, no in-depth scenes, and are basically not introductory. For example, 1 to 4, I dare say it is difficult to find such detailed information to help you solve a series of complex projects such as installation, signal, debugging, communication and programming. I am engaged in the maintenance of automobile welding and painting robots, and all the information comes directly from the manufacturers, but it is rare. In China, such local installation and debugging manufacturers are rare. For example, the KUKA robot they imported from Germany was trained by the Germans, and the information was also given by the Germans, which was difficult for outsiders to obtain. The versions circulated on the Internet are only limited to the introduction of the control system and the instructions for the use of teaching devices, and there are also some applications, which are basically general and can play a certain role in prompting, but they are not helpful to practical engineering applications.

Therefore, if you are not exposed to industrial robots and have no in-depth information provided by manufacturers, it is really difficult to learn robots as you said. Unless, just as a basic understanding.