I want to learn Japanese OTC welding robot programming and debugging, how can I learn it well?

The operation of a Japanese OTC welding robot is not so complicated, but if you want to learn programming, you must first have resources, because it is offline and very complicated. Debugging is very simple. The Japanese OTC welding robot is equipped with a special teaching box. Last time I taught it to an uncle with a primary school education and he learned it in two days. You can choose the appropriate one according to your situation.