There are many kinds of plc, first choose a model of PLC, you need to install programming software (different plc programming software is different). Start with one kind and start learning. In the beginning, it's best to find a ready-made program to understand what it is used to and understand it. Then try to program yourself, edit the simulation, and then wait until you are satisfied (the condition can be downloaded to the PLC is the best), this is the fastest. (Do not actually do, read more books, is not the real meeting.) Look at some source code, contact yourself, learn the basics, and cultivate logical ability. Hard work and hard work is fundamental! Shipbuilding Transition Joints Shipbuilding Transition Joints These Clad Metals are welded by explosion, shipbuilding transition joints class bonds high-strength, high-hardness, high-wear-resistant special metals with ordinary steel or stainless steel, and shipbuilding transition joints class combines high-hardness, wear-resistant special metals Combined with the structural characteristics of ordinary steel, this way shipbuilding transition joints saves precious metals and reduces costs. Shipbuilding Transition Joints,shipbuilding transition joints class,shipbuilding transition joints class,shipbuilding transition joints joint Changshu Herun Import & Export Co.,Ltd , https://www.herunchina.com